Coon Rapids, IA climate
Coon Rapids has cold, snowy winters and warm summers. A typical July afternoon reaches 84°, a January night drops to 11°, and about 32 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Coon Rapids feels like
Winter
Spring
Summer
Fall
Coon Rapids 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 | 29° | 11° | 0.8" | 8.2" | 7 | 20 | 10° – 33° |
| February | 34° | 15° | 1.1" | 8.2" | 7 | 17 | 14° – 34° |
| March | 47° | 26° | 1.9" | 4.8" | 8 | 8 | 30° – 52° |
| April | 61° | 37° | 3.6" | 0.9" | 10 | 1 | 40° – 55° |
| May | 71° | 48° | 5.1" | 0 | 12 | 0 | 55° – 67° |
| June | 81° | 59° | 5.2" | 0 | 12 | 0 | 67° – 74° |
| July | 84° | 63° | 4.0" | 0 | 10 | 0 | 68° – 79° |
| August | 82° | 60° | 4.4" | 0 | 9 | 0 | 66° – 76° |
| September | 76° | 51° | 3.4" | 0 | 8 | 0 | 57° – 69° |
| October | 63° | 39° | 2.6" | 0.6" | 8 | 0 | 45° – 56° |
| November | 47° | 27° | 1.6" | 1.5" | 6 | 2 | 28° – 48° |
| December | 34° | 16° | 1.2" | 7.5" | 7 | 13 | 10° – 32° |
| Year | 59° | 38° | 34.8" | 31.7" | 102 | 61 |
“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 Coon Rapids
Coon Rapids gets 35 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 102 days a year. Snow covers the ground about 61 days of the year.
About 166 frost-free days a year
In half of years the last 32° night comes by April 27 and the first one by October 10. That leaves about 166 frost-free days for gardens, shorter than 64% of U.S. towns.
Heating and cooling a home in Coon Rapids
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Coon Rapids, 89% of that work is heating and 11% 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.
How Coon Rapids 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 Coon Rapids averaged 0.7° warmer than the 1900s. The biggest change is in December (+2.3°). The shift is smaller than in 90% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Coon Rapids’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 10° to 33°. June is the most reliable, staying within 8°.
Common questions about Coon Rapids’s climate
What is the coldest month in Coon Rapids?
January, with a typical high of 29° and a low of 11°.
What is the hottest month in Coon Rapids?
July, with a typical high of 84° and a low of 63°. About 18 days a year reach 90°.
How much snow does Coon Rapids get?
About 32 inches in a normal winter, most of it in January.
When is the first frost in Coon Rapids?
In half of years the first 32° night comes by October 10, and the last spring frost by April 27.
What is the rainiest month in Coon Rapids?
June, with 5.2 inches of rain and melted snow. The year totals 35 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Coon Rapids itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Jefferson, IA (17 mi, snow) and Carroll, IA (16 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.