Sedan, KS climate
Sedan has chilly winters and warm summers. A typical July afternoon reaches 91°, a January night drops to 23°, and about 9 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Sedan feels like
Winter
Spring
Summer
Fall
Sedan 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 | 45° | 23° | 1.3" | 2.4" | 6 | 3 | 29° – 44° |
| February | 51° | 27° | 1.7" | 2.2" | 6 | 1 | 31° – 47° |
| March | 60° | 37° | 2.8" | 1.7" | 8 | 1 | 42° – 59° |
| April | 70° | 46° | 4.3" | 0.1" | 10 | 0 | 51° – 63° |
| May | 77° | 56° | 5.7" | 0 | 11 | 0 | 62° – 73° |
| June | 86° | 65° | 5.5" | 0 | 9 | 0 | 71° – 80° |
| July | 91° | 70° | 4.0" | 0 | 8 | 0 | 75° – 88° |
| August | 91° | 68° | 4.0" | 0 | 8 | 0 | 73° – 86° |
| September | 83° | 59° | 3.5" | 0 | 7 | 0 | 66° – 79° |
| October | 71° | 47° | 3.5" | 0 | 7 | 0 | 52° – 64° |
| November | 59° | 36° | 2.1" | 0.3" | 6 | 0 | 40° – 55° |
| December | 47° | 26° | 1.8" | 2.6" | 6 | 3 | 25° – 42° |
| Year | 69° | 47° | 40.1" | 9.3" | 92 | 8 |
“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 Sedan
Sedan 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 92 days a year. Snow covers the ground about 8 days of the year.
About 199 frost-free days a year
In half of years the last 32° night comes by April 9 and the first one by October 27. That leaves about 199 frost-free days for gardens, longer than 72% of U.S. towns.
Heating and cooling a home in Sedan
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Sedan, 73% of that work is heating and 27% 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.
How Sedan 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 Sedan averaged 0.4° warmer than the 1900s. The biggest change is in January (+1.7°). The shift is smaller than in 98% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Sedan’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 42° to 59°. June is the most reliable, staying within 10°.
Common questions about Sedan’s climate
What is the coldest month in Sedan?
January, with a typical high of 45° and a low of 23°.
What is the hottest month in Sedan?
July, with a typical high of 91° and a low of 70°. About 58 days a year reach 90°.
How much snow does Sedan get?
About 9 inches in a normal winter, most of it in December.
When is the first frost in Sedan?
In half of years the first 32° night comes by October 27, and the last spring frost by April 9.
What is the rainiest month in Sedan?
May, with 5.7 inches of rain and melted snow. The year totals 40 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Sedan itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Sedan, KS (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.