Mulberry Grove has chilly winters and warm summers
A typical July afternoon reaches 87°, a January night drops to 22°, and about 12 inches of snow falls in a normal winter.
A year in Mulberry Grove at a glance
Each month’s typical high and low, and what it brings.
What stands out about Mulberry Grove’s climate
Read from where Mulberry Grove sits among Illinois’s towns. The page puts what stands out first.
Living with Mulberry Grove’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
196 frost-free days. The last frost comes by Apr 10 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 24.
About 12" a winter over 4 days with an inch or more, most in January.
Months averaging under 55° run from November through April. Heating is 81% of the year’s heating-and-cooling load.
About 31 days a year reach 90°, and July afternoons average 87°.
The nicest months are April, May, September and October.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →12 inches of snow, 43 of rain and melt
May is the wettest month and February the driest. Rain or snow falls on about 91 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
About 196 frost-free days a year
In half of years the last 32° night comes by April 10 and the first by October 24.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
What a year in Mulberry Grove feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Mulberry Grove and its neighbors
Mulberry Grove has the coldest January nights next door (21°) and Pleasant Mound the hottest July afternoons (87°). Tap a town to see its climate.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Mulberry Grove averaged 0.9° warmer than the 1900s. The biggest change is in December (+1.8°).
A smaller shift than in 80% of U.S. towns.
Change by month
How Mulberry Grove compares
Against every U.S. town on TownTapestry, each counted once, with its place in Illinois.
Mulberry 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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 38° | 22° | 2.8" | 4.1" | 7 | 23° – 41° |
| February | 43° | 26° | 2.3" | 4.1" | 7 | 23° – 44° |
| March | 53° | 34° | 3.2" | 1.4" | 8 | 36° – 57° |
| April | 66° | 44° | 4.8" | 0.1" | 9 | 47° – 61° |
| May | 75° | 55° | 4.9" | 0 | 10 | 60° – 73° |
| June | 84° | 63° | 4.7" | 0 | 9 | 68° – 77° |
| July | 87° | 67° | 4.1" | 0 | 7 | 71° – 84° |
| August | 86° | 64° | 3.7" | 0 | 7 | 70° – 81° |
| September | 80° | 57° | 3.3" | 0 | 6 | 64° – 73° |
| October | 68° | 45° | 3.4" | 0 | 7 | 52° – 62° |
| November | 53° | 35° | 3.5" | 0.1" | 8 | 36° – 51° |
| December | 42° | 26° | 2.7" | 2.1" | 7 | 20° – 43° |
| Year | 65° | 45° | 43.4" | 11.9" | 91 |
Heating and cooling a home in Mulberry Grove
81% of the work is heating, so the furnace matters far more than the air conditioner.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 20° to 43°. June is the most reliable, staying within 9°.
Common questions about Mulberry Grove’s climate
What is the coldest month in Mulberry Grove?
January, with a typical high of 38° and a low of 22°.
What is the hottest month in Mulberry Grove?
July, with a typical high of 87° and a low of 67°. About 31 days a year reach 90°.
How much snow does Mulberry Grove get?
About 12 inches in a normal winter, most of it in January.
When is the first frost in Mulberry 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 Mulberry Grove?
May, with 4.9 inches of rain and melted snow. The year totals 43 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Mulberry Grove.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mulberry Grove itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Greenville, IL (9 mi, snow) and Vandalia, IL (9 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. Today’s forecast: National Weather Service.