Bruce, IL climate
Bruce has chilly winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 16°, and about 26 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Bruce feels like
Winter
Spring
Summer
Fall
Bruce 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 | 32° | 16° | 2.0" | 9.6" | 9 | 12 | 15° – 35° |
| February | 36° | 20° | 1.8" | 4.8" | 8 | 8 | 15° – 39° |
| March | 49° | 29° | 2.4" | 3.7" | 10 | 3 | 30° – 54° |
| April | 62° | 39° | 3.6" | 0.7" | 12 | 0 | 42° – 57° |
| May | 73° | 50° | 4.6" | 0 | 12 | 0 | 55° – 68° |
| June | 82° | 60° | 4.4" | 0 | 11 | 0 | 67° – 75° |
| July | 85° | 63° | 3.8" | 0 | 9 | 0 | 69° – 80° |
| August | 83° | 61° | 3.7" | 0 | 9 | 0 | 66° – 78° |
| September | 77° | 54° | 3.3" | 0 | 7 | 0 | 60° – 70° |
| October | 65° | 42° | 3.1" | 0 | 9 | 0 | 49° – 59° |
| November | 49° | 31° | 2.6" | 0.8" | 9 | 1 | 32° – 49° |
| December | 37° | 21° | 2.0" | 6.8" | 9 | 6 | 15° – 39° |
| Year | 61° | 40° | 37.3" | 26.4" | 113 | 30 |
“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 Bruce
Bruce gets 37 inches of rain and melted snow a year. May is the wettest month and February the driest. Rain or snow falls on about 113 days a year. Snow covers the ground about 30 days of the year.
About 199 frost-free days a year
In half of years the last 32° night comes by April 12 and the first one by October 28. That leaves about 199 frost-free days for gardens, longer than 72% of U.S. towns.
Heating and cooling a home in Bruce
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Bruce, 84% of that work is heating and 16% 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.
Bruce and its neighbors
Bruce borders 4 towns with climate data. January nights across them vary by 0.3°. Eagle has both the coldest January nights (16°) and the hottest July afternoons (85°). Bruce’s January low is 16° and its July high 85°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Bruce 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 Bruce averaged 1.3° warmer than the 1900s. The biggest change is in December (+2.6°). The shift is larger than in 56% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Bruce’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 15° to 39°. June is the most reliable, staying within 8°.
Common questions about Bruce’s climate
What is the coldest month in Bruce?
January, with a typical high of 32° and a low of 16°.
What is the hottest month in Bruce?
July, with a typical high of 85° and a low of 63°. About 33 days a year reach 90°.
How much snow does Bruce get?
About 26 inches in a normal winter, most of it in January.
When is the first frost in Bruce?
In half of years the first 32° night comes by October 28, and the last spring frost by April 12.
What is the rainiest month in Bruce?
May, with 4.6 inches of rain and melted snow. The year totals 37 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Bruce itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Streator 3 Se, IL (6 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.