Bear Grove, IL climate
Bear Grove has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 22°, and about 13 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Bear Grove feels like
Winter
Spring
Summer
Fall
Bear Grove weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 37° | 22° | 2.8" | 3.6" | 9 | 10 | 23° – 40° |
| February | 43° | 25° | 2.4" | 4.4" | 9 | 6 | 22° – 44° |
| March | 53° | 34° | 3.2" | 1.6" | 10 | 2 | 36° – 57° |
| April | 66° | 43° | 4.8" | 0.3" | 11 | 0 | 47° – 61° |
| May | 75° | 55° | 4.8" | 0 | 12 | 0 | 60° – 73° |
| June | 84° | 63° | 4.6" | 0 | 10 | 0 | 68° – 77° |
| July | 87° | 66° | 4.2" | 0 | 9 | 0 | 71° – 84° |
| August | 86° | 64° | 3.7" | 0 | 8 | 0 | 70° – 81° |
| September | 80° | 56° | 3.3" | 0 | 7 | 0 | 64° – 73° |
| October | 68° | 45° | 3.4" | 0 | 9 | 0 | 52° – 62° |
| November | 53° | 35° | 3.6" | 0.5" | 9 | 1 | 36° – 51° |
| December | 42° | 26° | 2.7" | 2.4" | 9 | 5 | 20° – 43° |
| Year | 65° | 45° | 43.4" | 12.8" | 111 | 24 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Bear Grove
Bear Grove gets 43 inches of rain and melted snow a year. April is the wettest month and February the driest. Rain or snow falls on about 111 days a year. Snow covers the ground about 24 days of the year.
About 196 frost-free days a year
In half of years the last 32° night comes by April 10 and the first one by October 24. That leaves about 196 frost-free days for gardens, longer than 70% of U.S. towns.
Heating and cooling a home in Bear Grove
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Bear Grove, 81% of that work is heating and 19% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Bear Grove and its neighbors
Bear Grove borders 5 towns with climate data. January nights across them vary by 0.7°. Shafter has the coldest January nights (21°) and Seminary the hottest July afternoons (87°). Bear Grove’s January low is 22° and its July high 87°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Bear Grove compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Bear Grove averaged 0.9° warmer than the 1900s. The biggest change is in December (+1.8°). The shift is smaller than in 80% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Bear Grove’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 20° to 43°. June is the most reliable, staying within 9°.
Common questions about Bear Grove’s climate
What is the coldest month in Bear Grove?
January, with a typical high of 37° and a low of 22°.
What is the hottest month in Bear Grove?
July, with a typical high of 87° and a low of 66°. About 31 days a year reach 90°.
How much snow does Bear Grove get?
About 13 inches in a normal winter, most of it in February.
When is the first frost in Bear Grove?
In half of years the first 32° night comes by October 24, and the last spring frost by April 10.
What is the rainiest month in Bear Grove?
April, with 4.8 inches of rain and melted snow. The year totals 43 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Bear Grove itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Ramsey, IL (14 mi, snow) and Vandalia, IL (6 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.