Triplett, MO climate
Triplett has chilly winters and warm summers. A typical July afternoon reaches 88°, a January night drops to 19°, and about 12 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Triplett feels like
Winter
Spring
Summer
Fall
Triplett 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 | 37° | 19° | 1.4" | 4.0" | 5 | 9 | 21° – 39° |
| February | 42° | 23° | 1.8" | 4.9" | 5 | 6 | 22° – 43° |
| March | 54° | 33° | 2.7" | 1.1" | 7 | 1 | 36° – 57° |
| April | 65° | 43° | 4.1" | 0 | 10 | 0 | 46° – 61° |
| May | 75° | 54° | 5.2" | 0 | 11 | 0 | 59° – 73° |
| June | 84° | 63° | 5.2" | 0 | 10 | 0 | 70° – 78° |
| July | 88° | 67° | 4.6" | 0 | 9 | 0 | 73° – 84° |
| August | 86° | 65° | 4.1" | 0 | 7 | 0 | 69° – 81° |
| September | 79° | 56° | 4.0" | 0 | 7 | 0 | 62° – 74° |
| October | 67° | 44° | 3.2" | 0 | 7 | 0 | 49° – 62° |
| November | 53° | 33° | 2.4" | 0.1" | 6 | 0 | 36° – 52° |
| December | 41° | 24° | 1.7" | 2.1" | 5 | 4 | 18° – 40° |
| Year | 64° | 44° | 40.4" | 12.2" | 89 | 20 |
“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 Triplett
Triplett gets 40 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 89 days a year. Snow covers the ground about 20 days of the year.
About 201 frost-free days a year
In half of years the last 32° night comes by April 10 and the first one by October 29. That leaves about 201 frost-free days for gardens, longer than 73% of U.S. towns.
Heating and cooling a home in Triplett
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Triplett, 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.
Triplett and its neighbors
Triplett borders 6 towns with climate data. January nights across them vary by 0.7°. Cunningham has the coldest January nights (19°) and De Witt the hottest July afternoons (88°). Triplett’s January low is 19° and its July high 88°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Triplett 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 Triplett averaged 0.6° warmer than the 1900s. The biggest change is in December (+1.9°). The shift is smaller than in 93% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Triplett’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 18° to 40°. June is the most reliable, staying within 8°.
Common questions about Triplett’s climate
What is the coldest month in Triplett?
January, with a typical high of 37° and a low of 19°.
What is the hottest month in Triplett?
July, with a typical high of 88° and a low of 67°. About 26 days a year reach 90°.
How much snow does Triplett get?
About 12 inches in a normal winter, most of it in February.
When is the first frost in Triplett?
In half of years the first 32° night comes by October 29, and the last spring frost by April 10.
What is the rainiest month in Triplett?
May, with 5.2 inches of rain and melted snow. The year totals 40 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Triplett itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Brunswick, MO (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.