Osage, KS climate
Osage has chilly winters and warm summers. A typical July afternoon reaches 89°, a January night drops to 21°, and about 8 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Osage feels like
Winter
Spring
Summer
Fall
Osage 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 | 40° | 21° | 1.3" | 2.9" | 4 | 24° – 41° |
| February | 46° | 25° | 1.7" | 2.3" | 4 | 27° – 45° |
| March | 57° | 35° | 2.5" | 0.5" | 6 | 39° – 59° |
| April | 66° | 45° | 4.2" | 0 | 8 | 48° – 61° |
| May | 75° | 55° | 5.7" | 0 | 10 | 60° – 73° |
| June | 85° | 65° | 5.4" | 0 | 7 | 70° – 78° |
| July | 89° | 69° | 4.2" | 0 | 7 | 74° – 85° |
| August | 88° | 67° | 3.8" | 0 | 6 | 71° – 84° |
| September | 80° | 58° | 4.2" | 0 | 6 | 65° – 76° |
| October | 69° | 46° | 3.5" | 0.2" | 6 | 51° – 61° |
| November | 55° | 35° | 2.4" | 0.1" | 5 | 38° – 53° |
| December | 44° | 25° | 1.8" | 2.4" | 4 | 21° – 41° |
| Year | 66° | 45° | 40.6" | 8.4" | 71 |
“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 Osage
Osage 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 71 days a year.
About 192 frost-free days a year
In half of years the last 32° night comes by April 14 and the first one by October 25. That leaves about 192 frost-free days for gardens, longer than 66% of U.S. towns.
Heating and cooling a home in Osage
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Osage, 78% of that work is heating and 22% 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.
Osage and its neighbors
Osage borders 5 towns with climate data. January nights across them vary by 0.7°. Valley has the coldest January nights (21°) and Osawatomie the hottest July afternoons (89°). Osage’s January low is 21° and its July high 89°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Osage 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 Osage averaged 0.6° warmer than the 1900s. The biggest change is in March (+1.8°). The shift is smaller than in 93% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Osage’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 21° to 41°. June is the most reliable, staying within 8°.
Common questions about Osage’s climate
What is the coldest month in Osage?
January, with a typical high of 40° and a low of 21°.
What is the hottest month in Osage?
July, with a typical high of 89° and a low of 69°. About 46 days a year reach 90°.
How much snow does Osage get?
About 8 inches in a normal winter, most of it in January.
When is the first frost in Osage?
In half of years the first 32° night comes by October 25, and the last spring frost by April 14.
What is the rainiest month in Osage?
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 Osage itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Osawatomie, KS (6 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.