Osage City, Kansas climate: Normal weather by month, frost dates and records
Osage City's normal year runs from 18°F January nights to 89°F July afternoons, with 38.9 inches of precipitation and 10 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.4°C, January lows of −8°C, July highs of 32°C, 987 mm of precipitation a year.
- NOAA stationOsage City
- Station IDUSC00146076
- Location38.64°N 95.80°W
- Elevation1,094 ft (334 m)
- From the center1 miles
- Population2,799
On October 23, the normal high in Osage City is 66°F and the normal low 41°F, and the chance of measurable rain or snow is 16%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Osage City.
- Jan 40° 18°
- Feb 45° 22°
- Mar 56° 32°
- Apr 65° 42°
- May 75° 54°
- Jun 84° 63°
- Jul 89° 67°
- Aug 88° 65°
- Sep 80° 56°
- Oct 69° 44°
- Nov 54° 32°
- Dec 43° 21°
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 Osage City each month?
July is the warmest month, with normal highs of 89°F; January the coldest, with normal lows of 18°F. The most precipitation falls in May (5.58 in), the least in January (0.83 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 40°F | 18°F | 29.1°F | 0.83 | 2.4 | 4 | <1 | 29 | 9 h 40 min |
| February | 45°F | 22°F | 33.2°F | 1.72 | 3.7 | 4 | <1 | 25 | 10 h 40 min |
| March | 56°F | 32°F | 43.8°F | 2.60 | 1.5 | 6 | <1 | 17 | 11 h 50 min |
| April | 65°F | 42°F | 53.8°F | 4.03 | 0.1 | 8 | <1 | 5 | 13 h 10 min |
| May | 75°F | 54°F | 64.0°F | 5.58 | 0.0 | 10 | 1 | <1 | 14 h 10 min |
| June | 84°F | 63°F | 73.5°F | 4.89 | 0.0 | 7 | 10 | <1 | 14 h 50 min |
| July | 89°F | 67°F | 78.4°F | 4.24 | 0.0 | 7 | 18 | <1 | 14 h 40 min |
| August | 88°F | 65°F | 76.2°F | 4.35 | 0.0 | 7 | 12 | <1 | 13 h 40 min |
| September | 80°F | 56°F | 68.0°F | 3.46 | 0.0 | 6 | 5 | <1 | 12 h 30 min |
| October | 69°F | 44°F | 56.4°F | 3.17 | 0.1 | 6 | 1 | 5 | 11 h 20 min |
| November | 54°F | 32°F | 43.1°F | 2.35 | 0.6 | 4 | <1 | 17 | 10 h 10 min |
| December | 43°F | 21°F | 32.2°F | 1.63 | 2.0 | 4 | <1 | 27 | 9 h 30 min |
| Year (annual) | 66°F | 43°F | 54.3°F | 38.85 | 10.4 | 73 | 46 | 124 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 5°C | −8°C | −1.6°C | 21 mm | 6 cm |
| February | 7°C | −6°C | 0.7°C | 44 mm | 9 cm |
| March | 13°C | 0°C | 6.6°C | 66 mm | 4 cm |
| April | 19°C | 6°C | 12.1°C | 102 mm | 0 cm |
| May | 24°C | 12°C | 17.8°C | 142 mm | 0 cm |
| June | 29°C | 17°C | 23.1°C | 124 mm | 0 cm |
| July | 32°C | 20°C | 25.8°C | 108 mm | 0 cm |
| August | 31°C | 18°C | 24.6°C | 110 mm | 0 cm |
| September | 27°C | 13°C | 20.0°C | 88 mm | 0 cm |
| October | 20°C | 7°C | 13.6°C | 81 mm | 0 cm |
| November | 12°C | 0°C | 6.2°C | 60 mm | 2 cm |
| December | 6°C | −6°C | 0.1°C | 41 mm | 5 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00146076; 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 Osage City?
Normal highs sit between 65°F and 85°F in April, May, June, September and October. Of those, October has the fewest days with rain (6).
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 USC00146076.
When is the last frost in Osage City?
In Osage City, the last spring frost (32°F) comes after April 13 in half of years and after April 28 in one year in ten; the first autumn frost comes before October 26 in half of years and before October 10 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 131 year in 10 after April 28; 9 in 10 after March 30
- First autumn frost, half of years before
- October 261 year in 10 before October 10; 9 in 10 before November 6
NOAA puts the median frost-free season at 194 days, and the season without a hard freeze (28°F) at 213 days.
A hard freeze (28°F) comes after April 2 in half of springs and before November 3 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Osage City in zone 6b in ZIP code 66523, the nearest ZIP area.
Frost dates for every NOAA station in Kansas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00146076; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Osage City?
In a normal year in Osage City, 46 days a year reach 90°F (5 of them 100°F or more), 124 nights fall to 32°F or colder and 73 days bring measurable precipitation.
- Days at 90°F or more
- 46a normal year
- Days at 100°F or more
- 5a normal year
- Nights at 32°F or colder
- 124a normal year
- Days that stay below freezing
- 25high of 32°F or less
- Days with 0.01 inch of precipitation
- 73a normal year
- Days with 1 inch of snow or more
- 4a normal year
The highest temperature in this station's record (since 1896) is 118°F, on July 18, 1936; the lowest is −26°F, on February 12, 1899.
The wettest calendar year on that record is 2019, with 57.07 in; the snowiest season is 1959–60, with 41.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00146076; records: ACIS (NOAA Regional Climate Centers), station USC00146076. Records use complete months only; a month missing more than three days is left out.
How sunny is Osage City?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Osage City, 4.4 kWh per square metre a day. July is the sunniest month (84%) and March the cloudiest (70%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 72% | 2.3 |
| February | 72% | 3.1 |
| March | 70% | 4.0 |
| April | 72% | 5.1 |
| May | 74% | 5.8 |
| June | 82% | 6.7 |
| July | 84% | 6.5 |
| August | 83% | 5.8 |
| September | 82% | 4.8 |
| October | 77% | 3.6 |
| November | 76% | 2.6 |
| December | 72% | 2.0 |
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 Osage City need?
A normal year in Osage City brings 5,184 heating degree days, 4% fewer than the median U.S. place (5,373), and 1,316 cooling degree days, 45% more than the median (908). Six months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,920 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,111 | 0 |
| February | 892 | 0 |
| March | 660 | 3 |
| April | 350 | 12 |
| May | 128 | 97 |
| June | 7 | 263 |
| July | 1 | 414 |
| August | 2 | 348 |
| September | 64 | 152 |
| October | 293 | 27 |
| November | 660 | 1 |
| December | 1,018 | 0 |
| Year (annual) | 5,184 | 1,316 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00146076. 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 Osage City been warmer than normal lately?
2025 averaged 55.5°F, 1.2°F above the 1991-2020 normal of 54.3°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 56.1°F | +1.8°F | 50.39 | 10.4 |
| 2022 | 54.5°F | +0.2°F | 38.03 | 20.5 |
| 2023 | 56.8°F | +2.5°F | 34.08 | 12.8 |
| 2024 | 57.0°F | +2.7°F | 41.46 | 9.0 |
| 2025 | 55.5°F | +1.2°F | 37.10 | 20.0 |
Source: observed years: ACIS, station USC00146076. A year counts only with all twelve months complete.
How does Osage City's climate compare?
Osage City is warmer than 49 of the other 136 places with their own NOAA record in Kansas, and wetter than 110. Across the 7,247 U.S. stations with normals, its annual mean of 54.3°F is warmer than 58%.
In the Köppen classification computed from these normals, Osage City is Dfa: continental, 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 Osage City share this climate record?
4 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.
- Lyndon, KS1,037 people · 7 mi E
- Burlingame, KS939 people · 8 mi N
- Scranton, KS641 people · 10 mi N
- Reading, KS184 people · 12 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 Osage City's climate
What is the coldest month in Osage City?
January, with a normal high of 40°F and a normal low of 18°F. The warmest is July (89°F by day, 67°F at night).
Does it snow in Osage City?
Yes: 10 inches in a normal year, falling on 6 days with 0.1 inch or more, the most in February (3.7 inches).
What is the rainiest month in Osage City?
May, with 5.58 in of precipitation in a normal year; the driest is January with 0.83 in.
What plant hardiness zone is Osage City in?
The USDA's 2023 map puts Osage City in zone 6b in ZIP code 66523, the nearest ZIP area.
How late can frost come in Osage City?
In half of years the last 32°F night comes after April 13; in one year in ten it comes after April 28. Waiting until April 28 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kansas climateThe statewide normals and every place in the state
- Melvern, KS11 miles from this station, 55.9°F a year
- Pomona, KS13 miles from this station, 56.2°F a year
- Eskridge, KS22 miles from this station, 53.8°F a year
- John Redmond Lake, KS27 miles from this station, 55.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made