Mountain Grove, MO climate
Mountain Grove has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 23°, and about 10 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mountain Grove feels like
Winter
Spring
Summer
Fall
Mountain 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 | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 42° | 23° | 2.8" | 3.7" | 7 | 5 | 27° – 42° |
| February | 48° | 27° | 2.6" | 2.3" | 7 | 3 | 28° – 46° |
| March | 57° | 35° | 4.2" | 1.8" | 9 | 1 | 39° – 59° |
| April | 67° | 44° | 5.1" | 0 | 9 | 0 | 49° – 62° |
| May | 75° | 53° | 5.5" | 0 | 11 | 0 | 60° – 70° |
| June | 82° | 62° | 4.3" | 0 | 8 | 0 | 67° – 77° |
| July | 87° | 66° | 4.2" | 0 | 8 | 0 | 71° – 83° |
| August | 86° | 64° | 3.7" | 0 | 7 | 0 | 68° – 81° |
| September | 79° | 56° | 4.0" | 0 | 6 | 0 | 63° – 75° |
| October | 68° | 45° | 3.5" | 0 | 7 | 0 | 51° – 62° |
| November | 56° | 35° | 3.8" | 0.2" | 8 | 0 | 38° – 54° |
| December | 45° | 27° | 2.7" | 2.4" | 7 | 2 | 24° – 43° |
| Year | 66° | 45° | 46.2" | 10.4" | 94 | 11 |
“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 Mountain Grove
Mountain Grove gets 46 inches of rain and melted snow a year. May is the wettest month and February the driest. Rain or snow falls on about 94 days a year. Snow covers the ground about 11 days of the year.
About 196 frost-free days a year
In half of years the last 32° night comes by April 11 and the first one by October 28. That leaves about 196 frost-free days for gardens, longer than 70% of U.S. towns.
Heating and cooling a home in Mountain Grove
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mountain Grove, 80% of that work is heating and 20% is cooling.
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.
Mountain Grove and its neighbors
Mountain Grove borders 1 town with climate data. January nights across them vary by 0.0°. Clinton has both the coldest January nights (23°) and the hottest July afternoons (87°). Mountain Grove’s January low is 23° and its July high 87°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Mountain 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 Mountain Grove averaged 0.7° warmer than the 1900s. The biggest change is in February (+1.8°). The shift is smaller than in 88% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mountain Grove’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 39° to 59°. June is the most reliable, staying within 9°.
Common questions about Mountain Grove’s climate
What is the coldest month in Mountain Grove?
January, with a typical high of 42° and a low of 23°.
What is the hottest month in Mountain Grove?
July, with a typical high of 87° and a low of 66°. About 27 days a year reach 90°.
How much snow does Mountain Grove get?
About 10 inches in a normal winter, most of it in January.
When is the first frost in Mountain Grove?
In half of years the first 32° night comes by October 28, and the last spring frost by April 11.
What is the rainiest month in Mountain Grove?
May, with 5.5 inches of rain and melted snow. The year totals 46 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mountain Grove itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Mtn Grove 2 N, MO (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.