Richland Grove, IL climate
Richland Grove has cold winters and warm summers. A typical July afternoon reaches 84°, a January night drops to 14°, and about 27 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Richland Grove feels like
Winter
Spring
Summer
Fall
Richland 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 | 31° | 14° | 1.6" | 7.9" | 7 | 14° – 35° |
| February | 35° | 18° | 1.8" | 6.7" | 7 | 14° – 38° |
| March | 49° | 29° | 2.5" | 4.1" | 9 | 31° – 53° |
| April | 62° | 39° | 3.8" | 0.3" | 10 | 42° – 58° |
| May | 73° | 51° | 4.8" | 0 | 11 | 56° – 69° |
| June | 82° | 61° | 4.9" | 0 | 10 | 68° – 75° |
| July | 84° | 64° | 3.9" | 0 | 9 | 69° – 80° |
| August | 83° | 62° | 3.8" | 0 | 8 | 67° – 78° |
| September | 77° | 54° | 3.6" | 0 | 7 | 60° – 70° |
| October | 64° | 42° | 2.9" | 0 | 7 | 48° – 58° |
| November | 49° | 31° | 2.4" | 0.7" | 8 | 32° – 50° |
| December | 36° | 20° | 2.0" | 7.1" | 8 | 13° – 38° |
| Year | 60° | 41° | 37.9" | 26.8" | 100 |
“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 Richland Grove
Richland Grove gets 38 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 100 days a year.
About 176 frost-free days a year
In half of years the last 32° night comes by April 24 and the first one by October 18. That leaves about 176 frost-free days for gardens, shorter than 53% of U.S. towns.
Heating and cooling a home in Richland Grove
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Richland Grove, 85% of that work is heating and 15% 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.
Richland Grove and its neighbors
Richland Grove borders 4 towns with climate data. January nights across them vary by 0.2°. Rivoli has the coldest January nights (14°) and Lynn the hottest July afternoons (84°). Richland Grove’s January low is 14° and its July high 84°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Richland 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 Richland Grove averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.0°). The shift is smaller than in 77% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Richland 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 13° to 38°. June is the most reliable, staying within 7°.
Common questions about Richland Grove’s climate
What is the coldest month in Richland Grove?
January, with a typical high of 31° and a low of 14°.
What is the hottest month in Richland Grove?
July, with a typical high of 84° and a low of 64°. About 22 days a year reach 90°.
How much snow does Richland Grove get?
About 27 inches in a normal winter, most of it in January.
When is the first frost in Richland Grove?
In half of years the first 32° night comes by October 18, and the last spring frost by April 24.
What is the rainiest month in Richland Grove?
June, with 4.9 inches of rain and melted snow. The year totals 38 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Richland Grove itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Woodhull, IL (11 mi, snow) and Moline Quad City Intl Airport, IL (13 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.