Raytown, MO climate
Raytown has chilly winters and warm summers. A typical July afternoon reaches 88°, a January night drops to 21°, and about 9 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Raytown feels like
Winter
Spring
Summer
Fall
Raytown 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° | 21° | 1.3" | 2.6" | 5 | 23° – 40° |
| February | 44° | 25° | 1.6" | 1.6" | 5 | 26° – 45° |
| March | 55° | 35° | 2.5" | 1.1" | 7 | 38° – 58° |
| April | 65° | 44° | 4.2" | 0.1" | 9 | 47° – 60° |
| May | 75° | 55° | 5.7" | 0 | 10 | 59° – 73° |
| June | 84° | 64° | 5.3" | 0 | 8 | 70° – 78° |
| July | 88° | 68° | 4.8" | 0 | 8 | 73° – 85° |
| August | 87° | 67° | 4.4" | 0 | 7 | 71° – 82° |
| September | 79° | 58° | 4.0" | 0 | 7 | 63° – 75° |
| October | 67° | 46° | 3.4" | 0.3" | 7 | 50° – 62° |
| November | 54° | 35° | 2.3" | 0.5" | 5 | 37° – 52° |
| December | 43° | 25° | 1.8" | 2.4" | 5 | 20° – 40° |
| Year | 65° | 45° | 41.1" | 8.6" | 82 |
“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 Raytown
Raytown gets 41 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 82 days a year.
About 198 frost-free days a year
In half of years the last 32° night comes by April 10 and the first one by October 27. That leaves about 198 frost-free days for gardens, longer than 71% of U.S. towns.
Heating and cooling a home in Raytown
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Raytown, 81% of that work is heating and 19% 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.
Raytown and its neighbors
Raytown borders 1 town with climate data. January nights across them vary by 0.7°. Kansas City has both the coldest January nights (20°) and the hottest July afternoons (89°). Raytown’s January low is 21° and its July high 88°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Raytown 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 Raytown averaged 1.0° warmer than the 1900s. The biggest change is in March (+2.4°). The shift is smaller than in 71% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Raytown’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 38° to 58°. June is the most reliable, staying within 8°.
Common questions about Raytown’s climate
What is the coldest month in Raytown?
January, with a typical high of 38° and a low of 21°.
What is the hottest month in Raytown?
July, with a typical high of 88° and a low of 68°. About 31 days a year reach 90°.
How much snow does Raytown get?
About 9 inches in a normal winter, most of it in January.
When is the first frost in Raytown?
In half of years the first 32° night comes by October 27, and the last spring frost by April 10.
What is the rainiest month in Raytown?
May, with 5.7 inches of rain and melted snow. The year totals 41 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Raytown itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Unity Village, MO (5 mi, snow) and Independence, MO (6 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.