Downs, IL climate
Downs has chilly winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 17°, and about 7 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Downs feels like
Winter
Spring
Summer
Fall
Downs 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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 33° | 17° | 2.2" | 1.8" | 6 | 17° – 37° |
| February | 38° | 21° | 1.9" | 0.8" | 6 | 17° – 40° |
| March | 50° | 30° | 2.6" | 1.2" | 8 | 33° – 56° |
| April | 63° | 40° | 3.8" | 0 | 10 | 43° – 58° |
| May | 74° | 52° | 4.5" | 0 | 11 | 57° – 71° |
| June | 83° | 61° | 4.2" | 0 | 9 | 67° – 75° |
| July | 85° | 64° | 4.2" | 0 | 8 | 69° – 81° |
| August | 84° | 61° | 3.6" | 0 | 8 | 67° – 78° |
| September | 78° | 54° | 3.1" | 0 | 7 | 60° – 71° |
| October | 65° | 43° | 3.3" | 0 | 9 | 49° – 60° |
| November | 50° | 32° | 2.9" | 0.1" | 8 | 34° – 49° |
| December | 38° | 23° | 2.2" | 2.6" | 7 | 17° – 40° |
| Year | 62° | 41° | 38.5" | 6.5" | 96 |
“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 Downs
Downs gets 38 inches of rain and melted snow a year. May is the wettest month and February the driest. Rain or snow falls on about 96 days a year.
About 172 frost-free days a year
In half of years the last 32° night comes by April 25 and the first one by October 16. That leaves about 172 frost-free days for gardens, shorter than 58% of U.S. towns.
Heating and cooling a home in Downs
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Downs, 86% of that work is heating and 14% 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.
Downs and its neighbors
Downs borders 6 towns with climate data. January nights across them vary by 0.5°. Old Town has the coldest January nights (17°) and Randolph the hottest July afternoons (85°). Downs’s January low is 17° and its July high 85°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Downs 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 Downs averaged 1.4° warmer than the 1900s. The biggest change is in December (+2.5°). The shift is larger than in 64% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Downs’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 17° to 40°. June is the most reliable, staying within 8°.
Common questions about Downs’s climate
What is the coldest month in Downs?
January, with a typical high of 33° and a low of 17°.
What is the hottest month in Downs?
July, with a typical high of 85° and a low of 64°. About 26 days a year reach 90°.
How much snow does Downs get?
About 7 inches in a normal winter, most of it in December.
When is the first frost in Downs?
In half of years the first 32° night comes by October 16, and the last spring frost by April 25.
What is the rainiest month in Downs?
May, with 4.5 inches of rain and melted snow. The year totals 38 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Downs itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bloomington Wtr Wks, IL (12 mi, snow) and Normal 4ne, IL (14 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.