How does the Farmers’ Almanac Predict the Weather?

Farmers’ Almanac long-range weather forecasts are calculated by Caleb Weatherbee who uses a proprietary formula developed by Farmers' Almanac founder David Young. This formula considers many factors, such as sunspots, moon phases, and other astronomical and atmospheric factors and conditions. Since 1818, this carefully guarded formula has been passed along from calculator to calculator and has never been revealed.

Unlike your local news, government, or commercial weather service, our forecasts are calculated several years in advance. Once the new year’s Farmers’ Almanac is printed, we can not go back to change or update our forecasts as many other local sources do. Given this fact, our forecasts must be somewhat generalized.

Although many longtime Almanac followers claim that our forecasts are 80% to 85% accurate, it should be noted that weather forecasting still remains an inexact science. Therefore, our forecasts may sometimes be imperfect. If you are planning an outdoor event, we recommend that you also check forecasts from local sources.

This Week's Features

Farmers' Almanac Long Range Weather

February 8th - February 11th

United States

Canada

Northeast U.S.
Wet snow mixed with rain Mid-Atlantic north through New England; slushy accumulations of 4+" possible.
Midwest/Great Lakes U.S.
Accumulating snows Kentucky, Ohio, then clearing. Fair elsewhere.
Southeast U.S.
Wet snow Tennessee, western North Carolina; wintry mix northern Mississippi, Alabama. Elsewhere, rain, then clearing.
North Central U.S.
Drier, much colder.
South Central U.S.
Snow parts of Arkansas, then clearing, cold. Clear, much colder elsewhere.
Northwest U.S.
Drier, but colder.
Southwest U.S.
Drier, but noticeably colder.