Sedan, Kansas climate: Normal weather by month, frost dates and records
Sedan's normal year runs from 22°F January nights to 92°F July afternoons, with 40.5 inches of precipitation and 9 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.1°C, January lows of −6°C, July highs of 33°C, 1,030 mm of precipitation a year.
- NOAA stationSedan
- Station IDUSC00147305
- Location37.13°N 96.18°W
- Elevation902 ft (275 m)
- Population985
On October 23, the normal high in Sedan is 69°F and the normal low 43°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Sedan.
- Jan 46° 22°
- Feb 51° 25°
- Mar 60° 34°
- Apr 70° 44°
- May 77° 55°
- Jun 86° 64°
- Jul 92° 69°
- Aug 91° 67°
- Sep 83° 58°
- Oct 72° 46°
- Nov 59° 34°
- Dec 48° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Sedan each month?
July is the warmest month, with normal highs of 92°F; January the coldest, with normal lows of 22°F. The most precipitation falls in May (6.15 in), the least in January (1.29 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 46°F | 22°F | 33.6°F | 1.29 | 2.4 | 6 | <1 | 27 | 9 h 50 min |
| February | 51°F | 25°F | 37.8°F | 1.73 | 2.2 | 6 | <1 | 22 | 10 h 50 min |
| March | 60°F | 34°F | 47.2°F | 2.80 | 1.7 | 8 | <1 | 13 | 11 h 50 min |
| April | 70°F | 44°F | 56.7°F | 4.30 | 0.1 | 10 | <1 | 3 | 13 h 10 min |
| May | 77°F | 55°F | 65.9°F | 6.15 | 0.0 | 11 | 1 | <1 | 14 h 10 min |
| June | 86°F | 64°F | 75.0°F | 5.58 | 0.0 | 9 | 9 | <1 | 14 h 40 min |
| July | 92°F | 69°F | 80.1°F | 3.82 | 0.0 | 8 | 20 | <1 | 14 h 30 min |
| August | 91°F | 67°F | 79.1°F | 3.50 | 0.0 | 8 | 19 | <1 | 13 h 40 min |
| September | 83°F | 58°F | 70.6°F | 3.52 | 0.0 | 7 | 8 | <1 | 12 h 30 min |
| October | 72°F | 46°F | 58.9°F | 3.84 | 0.0 | 7 | 1 | 2 | 11 h 20 min |
| November | 59°F | 34°F | 46.7°F | 2.15 | 0.3 | 6 | <1 | 13 | 10 h 10 min |
| December | 48°F | 25°F | 36.6°F | 1.86 | 2.6 | 6 | <1 | 24 | 9 h 40 min |
| Year (annual) | 70°F | 45°F | 57.3°F | 40.54 | 9.3 | 92 | 58 | 104 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 8°C | −6°C | 0.9°C | 33 mm | 6 cm |
| February | 10°C | −4°C | 3.2°C | 44 mm | 6 cm |
| March | 16°C | 1°C | 8.4°C | 71 mm | 4 cm |
| April | 21°C | 7°C | 13.7°C | 109 mm | 0 cm |
| May | 25°C | 13°C | 18.8°C | 156 mm | 0 cm |
| June | 30°C | 18°C | 23.9°C | 142 mm | 0 cm |
| July | 33°C | 20°C | 26.7°C | 97 mm | 0 cm |
| August | 33°C | 19°C | 26.2°C | 89 mm | 0 cm |
| September | 28°C | 15°C | 21.4°C | 89 mm | 0 cm |
| October | 22°C | 8°C | 14.9°C | 98 mm | 0 cm |
| November | 15°C | 1°C | 8.2°C | 55 mm | 1 cm |
| December | 9°C | −4°C | 2.6°C | 47 mm | 7 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00147305; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Sedan?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, September has the fewest days with rain (7).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00147305.
When is the last frost in Sedan?
In Sedan, the last spring frost (32°F) comes after April 9 in half of years and after April 27 in one year in ten; the first autumn frost comes before October 27 in half of years and before October 12 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 91 year in 10 after April 27; 9 in 10 after March 24
- First autumn frost, half of years before
- October 271 year in 10 before October 12; 9 in 10 before November 9
NOAA puts the median frost-free season at 199 days, and the season without a hard freeze (28°F) at 221 days.
A hard freeze (28°F) comes after March 29 in half of springs and before November 4 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Sedan in zone 7a in ZIP code 67361, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Sedan's NOAA station is in zone 7a: the coldest night of a typical year reaches 2°F (23 complete years).
Frost dates for every NOAA station in Kansas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00147305; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Sedan?
In a normal year in Sedan, 58 days a year reach 90°F (9 of them 100°F or more), 104 nights fall to 32°F or colder and 92 days bring measurable precipitation.
- Days at 90°F or more
- 58a normal year
- Days at 100°F or more
- 9a normal year
- Nights at 32°F or colder
- 104a normal year
- Days that stay below freezing
- 14high of 32°F or less
- Days with 0.01 inch of precipitation
- 92a normal year
- Days with 1 inch of snow or more
- 3a normal year
The highest temperature in this station's record (since 1893) is 118°F, on July 24, 1934; the lowest is −27°F, on January 30, 1949.
The wettest calendar year on that record is 1986, with 64.58 in; the snowiest season is 1923–24, with 33.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00147305; records: ACIS (NOAA Regional Climate Centers), station USC00147305. Records use complete months only; a month missing more than three days is left out.
How sunny is Sedan?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Sedan, 4.5 kWh per square metre a day. July is the sunniest month (85%) and March the cloudiest (72%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 2.5 |
| February | 73% | 3.2 |
| March | 72% | 4.2 |
| April | 74% | 5.3 |
| May | 74% | 5.8 |
| June | 84% | 6.8 |
| July | 85% | 6.6 |
| August | 84% | 5.9 |
| September | 83% | 4.9 |
| October | 79% | 3.7 |
| November | 78% | 2.7 |
| December | 73% | 2.2 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Sedan need?
A normal year in Sedan brings 4,359 heating degree days, 19% fewer than the median U.S. place (5,373), and 1,604 cooling degree days, 77% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,465 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 975 | 0 |
| February | 762 | 0 |
| March | 556 | 6 |
| April | 275 | 28 |
| May | 85 | 112 |
| June | 5 | 303 |
| July | 0 | 470 |
| August | 1 | 436 |
| September | 36 | 204 |
| October | 232 | 43 |
| November | 553 | 4 |
| December | 880 | 0 |
| Year (annual) | 4,359 | 1,604 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00147305. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Sedan been warmer than normal lately?
2025 averaged 58.9°F, 1.6°F above the 1991-2020 normal of 57.3°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 58.2°F | +0.9°F | 34.05 | 8.7 |
| 2022 | 58.4°F | +1.1°F | 28.32 | 10.7 |
| 2023 | 59.8°F | +2.5°F | 29.19 | 2.1 |
| 2024 | 61.0°F | +3.7°F | 42.26 | 2.6 |
| 2025 | 58.9°F | +1.6°F | 51.48 | 10.2 |
Over 104 complete years from 1893 to 2025, the station's annual mean temperature rose at a fitted 1.3°F per century (+0.07°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00147305; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Sedan's climate compare?
Sedan is warmer than 124 of the other 136 places with their own NOAA record in Kansas, and wetter than 118. Across the 7,247 U.S. stations with normals, its annual mean of 57.3°F is warmer than 67%.
In the Köppen classification computed from these normals, Sedan is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Sedan share this climate record?
9 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Cedar Vale, KS474 people · 18 mi W
- Chautauqua, KS110 people · 7 mi S
- Peru, KS101 people · 6 mi SE
- Bowring, OK93 people · 18 mi S
- Niotaze, KS89 people · 10 mi SE
- Havana, KS83 people · 13 mi E
- Elgin, KS56 people · 11 mi SW
- Whippoorwill, OK35 people · 15 mi S
- Foraker, OK17 people · 28 mi SW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Sedan's climate
What is the coldest month in Sedan?
January, with a normal high of 46°F and a normal low of 22°F. The warmest is July (92°F by day, 69°F at night).
Does it snow in Sedan?
Yes: 9 inches in a normal year, falling on 5 days with 0.1 inch or more, the most in December (2.6 inches).
What is the rainiest month in Sedan?
May, with 6.15 in of precipitation in a normal year; the driest is January with 1.29 in.
What plant hardiness zone is Sedan in?
The USDA's 2023 map puts Sedan in zone 7a in ZIP code 67361, the nearest ZIP area. By the same method at Sedan's NOAA station, the coldest night of a typical year reaches 2°F (23 years, 1991-2020): zone 7a.
How late can frost come in Sedan?
In half of years the last 32°F night comes after April 9; in one year in ten it comes after April 27. Waiting until April 27 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kansas climateThe statewide normals and every place in the state
- Howard, KS24 miles from this station, 55.8°F a year
- Bartlesville, OK27 miles from this station, 58.2°F a year
- Independence, KS27 miles from this station, 57.6°F a year
- Coffeyville Water Works, KS30 miles from this station, 58.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made