
How Accurate Is the Farmers' Almanac? We Scored Five Winters
The Almanac claims 80 percent. We scored five winters of its archived forecasts against NOAA station records and got 29.5 percent. Here is the working.
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How accurate is the Farmers' Almanac? Two numbers dominate every answer you will find. The almanacs say about 80 percent. Their critics say 52 percent, barely better than a coin. Both get repeated endlessly and almost nobody sources either one correctly. We checked both, then ran the test ourselves against NOAA station records.
How accurate is the Farmers' Almanac?
Close to a coin toss in the only peer-reviewed test we could verify, and worse than that in ours. The 1981 study found forecasts landed on the correct side of normal 50.7 percent of the time for temperature and 51.9 percent for precipitation, against 50 percent from guessing.
Chance is 50 percent. That study, which we identify properly further down, is the entire scientific literature on the subject as far as we can establish. Everything else circulating online is either an almanac describing itself, a meteorologist offering an opinion, or a number that has been copied so many times its origin has been lost.
So we ran our own test. We pulled five winters of archived forecasts off the Wayback Machine, scored them against NOAA station records for the cities the almanac itself names, and got a much harsher number than the almanac reports. Then we checked whether that harsh number was fair, and found it needs a benchmark standing next to it.
What accuracy does the Farmers' Almanac claim for itself?
Between 80 and 85 percent, though the wording repays attention. Its own page on how it predicts weather says that many longtime Almanac followers maintain the forecasts are 80 to 85 percent accurate. The claim is attributed to readers, not to any measurement the publication carried out.
Its 2026-2027 winter forecast page, updated 3 September 2026, goes further and states that independent reviews put actual accuracy somewhat lower but still meaningfully above chance. No source is given for that sentence, and the only independent review we could verify points the other way.
What does the Old Farmer's Almanac claim?
The Old Farmer's Almanac is a separate publication and it publishes an actual scorecard. Its accuracy page, updated 18 August 2026, says it correctly predicts the direction of seasonal temperature and precipitation departures about 80 percent of the time.
For last winter it claims better than that: 83.3 percent on temperature, 94.4 percent on precipitation, and a total accuracy rate of 88.9 percent. Credit where it is due, because publishing a self-assessment at all puts it ahead of most forecasters, and the page states its method openly.
That method is the detail everything else turns on. The score is calculated on the direction of departure for one representative city in each region, and the almanac chooses the city.
Is there any real study of almanac accuracy?
One, and it is from 1981. John E. Walsh and David Allen published "Testing the Farmer's Almanac" in the journal Weatherwise, volume 34, issue 5, pages 212 to 215, in October 1981. We confirmed the citation directly against the Crossref DOI registry rather than trusting the dozens of pages that cite it loosely.
The paper asked only whether each forecast got the sign of the departure right, which is the same directional question we use below. The result reported from it is 50.7 percent for temperature and 51.9 percent for precipitation, against 50 percent expected from guessing. We do not link the publisher's page because it refuses our requests, and we will not link a page we could not read, so the citation above comes from the DOI registry and the percentages from sources that quote the paper.
Three things about that study are worth stating plainly, because the pages citing it rarely do. It is 45 years old. It tested the Old Farmer's Almanac, not the Farmers' Almanac of Maine. And it measured monthly forecasts, not the seasonal winter outlooks that people actually search for.
Is there a Penn State study of the Farmers' Almanac?
No. Several pages cite Penn State as though a study exists, and the source they are pointing at is a question and answer piece from 23 September 2007 in which meteorologist Paul Knight gives his opinion. It contains no data and no statistics.
Knight's view is blunt, and quoting him is fair as long as it is labelled as a view rather than a finding. He says the ability to predict events that far in advance is zero. That is a working meteorologist's judgement, and it is not the same thing as a measurement, which is exactly the distinction the pages citing him erase.
Does the 2010 University of Illinois study exist?
We could not find it. A study described as a University of Illinois analysis from 2010 covering five years of forecasts is cited across this topic, usually as the source of the 52 percent figure. We searched the Crossref DOI registry three separate ways and found nothing matching that description.
What we think has happened is a slow corruption of one citation. John Walsh was at the University of Illinois, the 1981 paper does report figures near 52 percent, and somewhere along the way the year and the study design drifted. We are not claiming the 2010 study does not exist. We are saying we looked in the registry that assigns DOIs to published papers and could not locate it.
How we tested the forecasts ourselves
We scored old forecasts against what actually fell. The Wayback Machine holds 488 archived copies of the Old Farmer's Almanac winter forecast page, so we took one November snapshot per season for five winters and read what was being predicted at the time, before anyone knew the answer.
The actuals come from NOAA's Regional Climate Centers ACIS database, rebuilt from daily station values into July to June seasons, with a trace counted as zero and any season missing more than five days of the October to April core discarded. The baseline is the NCEI 1991-2020 normal for each station.
Two choices matter for fairness. We used the cities the almanac itself lists under each region rather than picking our own, which gave 50 stations across 12 regions. And we used its own test: did snowfall land on the side of normal that was called. That is the same directional question Walsh and Allen asked in 1981, and the same one the almanac uses to score itself.
| Choice | What we did | Why |
|---|---|---|
| Forecast source | Archived November snapshots, five winters | Read before the outcome was known |
| Stations | The 50 cities the almanac lists itself | We do not get to pick the sample |
| Baseline | NCEI 1991-2020 normals | The same normals the almanac says it uses |
| Test | Direction of departure from normal | The almanac's own scoring question |
| "Near normal" counts as correct | Within 10 percent of normal | Threshold fixed in advance, not tuned |
| Excluded | Stations normalling under 3 inches | A ratio against near-zero snow is noise |
What did the test find?
The forecasts landed on the correct side of normal 41 times out of 139 station-seasons, which is 29.5 percent. Scored at the level the almanac uses, one verdict per region based on the majority of that region's own cities, it was right in 5 of 30 region-seasons, or 16.7 percent.
Both numbers sit far below the 80 percent the publication reports and far below the 50 percent you would expect from guessing. Before anyone quotes that as a debunking, the next section explains why the raw figure on its own is misleading, and why we do not think it is the honest headline.
Why that number needs a benchmark beside it
Because the five winters we tested were lopsided. Across all 267 station-seasons in the window, 198 finished below the 1991-2020 normal. That is 74.2 percent. Any forecast leaning toward above-normal snow was fighting the period itself, and the almanac leaned that way repeatedly.
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Sixteen of its 30 scoreable calls predicted above-normal snowfall, in a stretch where only about a quarter of station-seasons came in above normal. The failure in our window is not randomness. It is direction: the almanac kept calling for more snow than fell, during five winters that were mostly short of snow.
| Winter | Share of stations below the 1991-2020 normal |
|---|---|
| 2021-22 | 61% |
| 2022-23 | 69% |
| 2023-24 | 93% |
| 2024-25 | 83% |
| 2025-26 | 66% |
What would a rule that says below normal every year have scored?
Eighty-two percent, on exactly the same station-seasons. A rule with no skill, no method and no almanac behind it, one that simply says every region will finish below normal every winter, would have beaten the published forecast by more than 50 percentage points across this five-winter window.
That comparison is the fairest way we know to present the result, and it cuts both ways. It shows the forecast performing badly, and it also shows how easy this particular window was to score well on, which is a caution against reading our 29.5 percent as a permanent verdict on the publication.
| Method | Correct calls | Hit rate |
|---|---|---|
| Always say below normal | 114 of 139 | 82.0% |
| The Almanac's actual calls | 41 of 139 | 29.5% |
| Always say above normal | 24 of 139 | 17.3% |
| Always say near normal | 21 of 139 | 15.1% |
Which forecasts could not be scored at all?
Nearly half of them. Of 53 region-seasons we examined, 23 named two directions at once, predicting above-normal snow in one part of a region and below-normal in another. That is 43 percent of the forecasts, and no outcome can contradict a statement shaped like that.
A representative example, from the Atlantic Corridor for winter 2021-22: above-normal snowfall in the north and below-normal in the south. The region runs from Richmond to Boston. Whatever the winter did, some part of that sentence was right, which is why we set those calls aside rather than scoring them as hits.
Was the Farmers' Almanac accurate last winter?
Partly. For winter 2025-26 the Old Farmer's Almanac called below-normal snowfall, and 66 percent of our stations finished below normal. At region level it went one for three: the Northeast call verified at all four of its cities, while the Upper Midwest managed two of four and Texas-Oklahoma missed.
Its strongest winter in our window was the one before. In 2024-25 it was right in three of five scoreable regions and at 18 of 23 individual cities, the only season of the five where it cleared half on either measure. The two that sank the average are 2022-23 and 2023-24, when it called above-normal snow across the East and the East recorded some of its lowest totals in decades.
| Winter | Regions called correctly | Cities on the predicted side |
|---|---|---|
| 2021-22 | 1 of 8 | 11 of 32 (34%) |
| 2022-23 | 0 of 4 | 2 of 25 (8%) |
| 2023-24 | 0 of 10 | 4 of 51 (8%) |
| 2024-25 | 3 of 5 | 18 of 22 (82%) |
| 2025-26 | 1 of 3 | 6 of 9 (67%) |
The number of rows behind each season differs because the number of scoreable calls does. A winter in which the Almanac hedged most of its regions leaves fewer calls that can be marked right or wrong, which is why 2025-26 rests on three regions and 2023-24 on ten.
Why is the Almanac's own score so much higher than ours?
Mostly because of who picks the city. The almanac scores the direction of departure for one representative city in each region and selects that city itself. We scored every city it lists under each region, which for the Lower Lakes means eight cities from Chicago to Syracuse rather than one.
Those two approaches can produce very different numbers from the same forecast. A region-wide call for above-normal snow can be right in Syracuse and wrong in Chicago, Cleveland, Detroit, Milwaukee, Buffalo, Indianapolis and Rochester in the same winter. We are not accusing anyone of choosing conveniently, because we cannot see their selection. We are pointing out that the method leaves that door open, and that a reader has no way to audit it.
There is a second, simpler reason. Their 94.4 percent figure is precipitation, which counts rain. Ours is snowfall alone. A winter can deliver normal precipitation as rain and still finish far short on snow, and across these five winters that is close to what happened in much of the country.
How does the Almanac make its forecast?
By a formula it does not disclose. The Old Farmer's Almanac says its method descends from a secret formula devised by founder Robert B. Thomas in 1792, built on the idea that sunspots influence weather on Earth, and states directly that the exact formula is proprietary.
That is the central problem for anyone trying to evaluate it. A forecast method that cannot be inspected cannot be tested by anyone except through its outputs, which is what we have done here and what Walsh and Allen did in 1981. Both publications also decline to publish the underlying regional data that would let a reader reproduce their accuracy claims.
What does the Farmers' Almanac say for winter 2026-2027?
It expects near-normal temperatures across the Great Lakes, Ohio Valley and Midwest, and says plainly that this does not mean a mild winter. Its wording describes fast-moving clippers, sudden cold snaps, brief snowy periods, snow squalls and bursts of bitter cold, interrupted by milder breaks.
The forecast was published on 6 August 2026 and last updated on 3 September 2026. It gives no snowfall figure in inches for any American city, which is true of every seasonal almanac forecast we have read, and it is the reason these forecasts are difficult to score without the kind of station work described above.
What does the Old Farmer's Almanac say for winter 2026-2027?
It splits the country into 18 regions and gives them different answers, including two that disagree across a single state line. Its winter forecast page calls for near or below normal snowfall for most areas, with heavier amounts in a few named zones.
Northern Ohio sits in its Lower Lakes region, which it calls warmer than normal with near to below normal snowfall. Southern Ohio sits in its Ohio Valley region, which it calls colder than normal. We work through what that split means against 77 years of station data in our Ohio snow guide.
Both publications also share a driver this season, which is the strong El Nino NOAA has under an advisory. The Climate Prediction Center's ENSO discussion is updated monthly, and NOAA's own winter outlook does not appear until mid-October.
What is the Old Farmer's Almanac predicting for each region this winter?
Below is every regional snowfall and temperature call on its page as it stood on 4 September 2026, following an update dated 31 August. We reproduce them so you can check next spring whether they verified, which is the whole point of keeping this page rather than replacing it each year.
| Region | Temperature | Snowfall |
|---|---|---|
| 1. Northeast | Above normal north, below south | Below normal north, above south |
| 2. Atlantic Corridor | Above normal | Slightly below normal |
| 3. Appalachians | Below normal | Above normal, especially north |
| 4. Southeast | Above normal | Normal |
| 5. Florida | Above normal | No snowfall call |
| 6. Lower Lakes | Above normal | Near to below normal |
| 7. Ohio Valley | Below normal | Slightly below normal |
| 8. Deep South | Above normal | Below normal |
| 9. Upper Midwest | Above normal | Near to below normal |
| 10. Heartland | Above normal | Near to below normal |
| 11. Texas and Oklahoma | Above normal | Near normal |
| 12. High Plains | Above normal | Below normal |
| 13. Intermountain | Above normal | Above normal |
| 14. Desert Southwest | Above normal | Below normal where snow falls |
| 15. Pacific Northwest | Above normal | Above normal |
| 16. Pacific Southwest | Above normal | Near to above normal in mountains |
Five of the fifteen snowfall calls in that table are already hedged across two outcomes. The Northeast is given opposite directions in its north and south, and the Lower Lakes, Upper Midwest, Heartland and Pacific Southwest are each given a band spanning near and something else. That is the same pattern we measured across five past winters, visible in this season's forecast before the winter starts. Regions 17 and 18 are Alaska and Hawaii, which sit outside our table and outside the test.
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Which Almanac region is your state in?
Most big snow states sit in more than one, which is why a single state answer often does not exist. The Almanac draws its region lines through states rather than around them, so Ohio, New York, Pennsylvania, Michigan, Texas, Wisconsin and Colorado each straddle a boundary with different calls on either side.
The table below places each state by the cities the Almanac itself lists under each region, which is the same city set our test used. It is not a reproduction of the Almanac's own map, and a state can hold ground in a region that none of its listed cities falls in.
| State | Almanac regions its listed cities fall in | Snowfall called for 2026-2027 |
|---|---|---|
| Colorado | High Plains, Intermountain | Below normal, then above normal |
| Florida | Florida | No snowfall forecast issued |
| Idaho | Intermountain | Above normal |
| Michigan | Lower Lakes, Upper Midwest | Near to below normal in both |
| Minnesota | Upper Midwest | Near to below normal |
| New York | Northeast, Appalachians, Lower Lakes | Split north to south, above normal, near to below normal |
| Ohio | Lower Lakes, Ohio Valley | Near to below normal, then slightly below normal |
| Pennsylvania | Atlantic Corridor, Appalachians, Ohio Valley | Slightly below normal, above normal, slightly below normal |
| Texas | Texas-Oklahoma, High Plains | Near normal, below normal in the panhandle |
| Utah | Intermountain | Above normal |
| Wisconsin | Lower Lakes, Upper Midwest | Near to below normal in both |
| Wyoming | High Plains | Below normal |
Colorado is the sharpest case in that table. Denver is one of the cities the Almanac lists under the High Plains, which it has down for below-normal snowfall this winter, and Grand Junction is one it lists under the Intermountain region, which it has down for above-normal. Both cities are in Colorado, and the two calls point in opposite directions. Our Colorado snow guide works through what the station record says about that divide.
Every forecast we scored, and how it did
Here is the full working, so nobody has to take our word for the headline figure. Each row is one regional snowfall call from an archived forecast, the direction we coded it as, and how many of that region's own listed cities finished on the predicted side of normal.
| Region | Winter | Call | Cities on the predicted side | Verdict |
|---|---|---|---|---|
| Northeast | 2023-24 | Above | 0 of 4 | Miss |
| Northeast | 2024-25 | Below | 4 of 4 | Hit |
| Northeast | 2025-26 | Below | 4 of 4 | Hit |
| Atlantic Corridor | 2022-23 | Above | 0 of 9 | Miss |
| Atlantic Corridor | 2023-24 | Above | 0 of 9 | Miss |
| Appalachians | 2021-22 | Near | 1 of 4 | Miss |
| Appalachians | 2022-23 | Above | 0 of 4 | Miss |
| Appalachians | 2023-24 | Above | 0 of 4 | Miss |
| Southeast | 2021-22 | Near | 0 of 1 | Miss |
| Southeast | 2023-24 | Above | 0 of 1 | Miss |
| Southeast | 2024-25 | Above | 0 of 1 | Miss |
| Lower Lakes | 2021-22 | Near | 2 of 8 | Miss |
| Lower Lakes | 2022-23 | Above | 2 of 8 | Miss |
| Lower Lakes | 2023-24 | Above | 0 of 8 | Miss |
| Lower Lakes | 2024-25 | Below | 8 of 8 | Hit |
| Ohio Valley | 2021-22 | Above | 1 of 4 | Miss |
| Ohio Valley | 2022-23 | Above | 0 of 4 | Miss |
| Ohio Valley | 2023-24 | Above | 0 of 4 | Miss |
| Upper Midwest | 2021-22 | Below | 2 of 5 | Miss |
| Upper Midwest | 2023-24 | Above | 0 of 5 | Miss |
| Upper Midwest | 2024-25 | Below | 4 of 4 | Hit |
| Upper Midwest | 2025-26 | Below | 2 of 4 | Miss |
| Heartland | 2023-24 | Above | 1 of 5 | Miss |
| Heartland | 2024-25 | Below | 2 of 5 | Miss |
| Texas and Oklahoma | 2021-22 | Near | 0 of 1 | Miss |
| Texas and Oklahoma | 2025-26 | Below | 0 of 1 | Miss |
| High Plains | 2023-24 | Above | 0 of 4 | Miss |
| Intermountain | 2021-22 | Below | 5 of 7 | Hit |
| Intermountain | 2023-24 | Above | 3 of 7 | Miss |
| Pacific Northwest | 2021-22 | Below | 0 of 2 | Miss |
Reading down the call column shows the problem more clearly than any percentage. All five hits came from the ten below-normal calls. The sixteen above-normal calls produced none, and neither did the four near-normal ones.
Should you plan a trip around an almanac forecast?
Not as a booking decision. A seasonal outlook that gives no figure in inches, covers a region several states wide, and in 43 percent of the cases we examined predicts both directions at once, cannot tell you whether your February drive through the mountains will be clear.
Where it does have value is as a conversation starter about a season's character, and both publications are honest that they forecast trends rather than events. The Old Farmer's Almanac states outright that nobody has gained sufficient insight to predict weather with total accuracy, which is a fairer description of the product than the 80 percent headline suggests.
What should you use instead?
Climatology for planning, and a real forecast for the week you travel. A station's 30-year normal tells you what a typical winter delivers where you are going, and the historical range tells you how far from typical it can land. Neither requires anyone to predict anything.
That is the approach behind our own winter guides, which pair NOAA station records with what forecasters are currently saying rather than issuing numbers of our own. Our USA winter snow predictions hub collects them, and the Michigan guide shows the method applied to a single state.
For the days that matter, use the National Weather Service forecast for the specific place, issued a week or less ahead. Seasonal outlooks and short-range forecasts are different products built by different methods, and a seasonal outlook is not a weak version of a forecast, it is a different thing entirely.
The limits of our own test
Five winters is a small sample and we would not defend the 29.5 percent as a permanent figure. The window was unusually low on snow, which punished a publication that leaned toward above-normal calls, and a different five winters would very likely produce a different number.
Four other limits belong on the record. We tested the Old Farmer's Almanac, because it is the one with archived forecasts we could retrieve, so nothing here measures the Farmers' Almanac of Maine directly. We tested snowfall only, so this is not a test of the 94.4 percent precipitation claim. Our coding of which calls counted as above, below or near normal is a judgement, which is why the verbatim wording of every call sits in our working notes. And the 1991-2020 normals may themselves lag a warming climate, which is part of why 74 percent of seasons ran below them.
What we will defend is narrower and, we think, more useful than a headline percentage. Across these five winters the published forecasts were beaten comfortably by a rule with no skill at all, 43 percent of them could not be falsified, and the gap between the almanac's self-reported accuracy and any independent number depends heavily on a city selection that readers cannot inspect.
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