Wamego, Kansas climate: Normal weather by month, frost dates and records
Wamego's normal year runs from 18°F January nights to 90°F July afternoons, with 34.7 inches of precipitation and 17 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.5°C, January lows of −8°C, July highs of 32°C, 882 mm of precipitation a year.
- NOAA stationWamego (4 mi W)
- Station IDUSC00148563
- Location39.21°N 96.37°W
- Elevation1,166 ft (355 m)
- Population4,888
On October 23, the normal high in Wamego is 66°F and the normal low 40°F, and the chance of measurable rain or snow is 21%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Wamego.
- Jan 39° 18°
- Feb 45° 21°
- Mar 56° 31°
- Apr 67° 42°
- May 76° 53°
- Jun 85° 63°
- Jul 90° 68°
- Aug 89° 65°
- Sep 81° 56°
- Oct 69° 43°
- Nov 55° 31°
- Dec 43° 22°
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 Wamego each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 18°F. The most precipitation falls in June (5.19 in), the least in January (0.69 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 39°F | 18°F | 28.5°F | 0.69 | 4.8 | 5 | <1 | 28 | 9 h 40 min |
| February | 45°F | 21°F | 33.1°F | 1.16 | 5.0 | 5 | <1 | 23 | 10 h 40 min |
| March | 56°F | 31°F | 43.4°F | 2.09 | 1.8 | 7 | <1 | 16 | 11 h 50 min |
| April | 67°F | 42°F | 54.0°F | 3.50 | 0.2 | 9 | <1 | 5 | 13 h 10 min |
| May | 76°F | 53°F | 64.6°F | 5.11 | 0.0 | 10 | 2 | <1 | 14 h 20 min |
| June | 85°F | 63°F | 74.1°F | 5.19 | 0.0 | 9 | 9 | <1 | 14 h 50 min |
| July | 90°F | 68°F | 79.0°F | 4.66 | 0.0 | 9 | 17 | <1 | 14 h 40 min |
| August | 89°F | 65°F | 76.9°F | 4.11 | 0.0 | 8 | 15 | <1 | 13 h 50 min |
| September | 81°F | 56°F | 68.7°F | 2.86 | 0.0 | 7 | 6 | <1 | 12 h 30 min |
| October | 69°F | 43°F | 56.2°F | 2.41 | 0.3 | 7 | 1 | 4 | 11 h 10 min |
| November | 55°F | 31°F | 43.0°F | 1.67 | 0.8 | 6 | <1 | 16 | 10 h |
| December | 43°F | 22°F | 32.2°F | 1.28 | 4.0 | 4 | <1 | 27 | 9 h 30 min |
| Year (annual) | 66°F | 43°F | 54.5°F | 34.73 | 16.9 | 87 | 49 | 119 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 4°C | −8°C | −1.9°C | 18 mm | 12 cm |
| February | 7°C | −6°C | 0.6°C | 29 mm | 13 cm |
| March | 13°C | −1°C | 6.3°C | 53 mm | 5 cm |
| April | 19°C | 5°C | 12.2°C | 89 mm | 1 cm |
| May | 24°C | 12°C | 18.1°C | 130 mm | 0 cm |
| June | 29°C | 17°C | 23.4°C | 132 mm | 0 cm |
| July | 32°C | 20°C | 26.1°C | 118 mm | 0 cm |
| August | 31°C | 19°C | 24.9°C | 104 mm | 0 cm |
| September | 27°C | 13°C | 20.4°C | 73 mm | 0 cm |
| October | 21°C | 6°C | 13.4°C | 61 mm | 1 cm |
| November | 13°C | 0°C | 6.1°C | 42 mm | 2 cm |
| December | 6°C | −6°C | 0.1°C | 33 mm | 10 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00148563; 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 Wamego?
Normal highs sit between 65°F and 85°F in April, May, June, 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 USC00148563.
When is the last frost in Wamego?
In Wamego, the last spring frost (32°F) comes after April 18 in half of years and after May 2 in one year in ten; the first autumn frost comes before October 19 in half of years and before October 3 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 181 year in 10 after May 2; 9 in 10 after April 4
- First autumn frost, half of years before
- October 191 year in 10 before October 3; 9 in 10 before November 1
NOAA puts the median frost-free season at 183 days, and the season without a hard freeze (28°F) at 203 days.
A hard freeze (28°F) comes after April 8 in half of springs and before October 28 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Wamego in zone 6b in ZIP code 66547, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Wamego's NOAA station is in zone 6a: the coldest night of a typical year reaches −5°F (27 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Kansas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00148563; 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 Wamego?
In a normal year in Wamego, 49 days a year reach 90°F (6 of them 100°F or more), 119 nights fall to 32°F or colder and 87 days bring measurable precipitation.
- Days at 90°F or more
- 49a normal year
- Days at 100°F or more
- 6a normal year
- Nights at 32°F or colder
- 119a normal year
- Days that stay below freezing
- 23high of 32°F or less
- Days with 0.01 inch of precipitation
- 87a normal year
- Days with 1 inch of snow or more
- 6a normal year
The highest temperature in this station's record (since 1900) is 114°F, on July 13, 1954; the lowest is −26°F, on January 4, 1947.
The wettest calendar year on that record is 1973, with 54.61 in; the snowiest season is 1959–60, with 41.4 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00148563; records: ACIS (NOAA Regional Climate Centers), station USC00148563. Records use complete months only; a month missing more than three days is left out.
How sunny is Wamego?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Wamego, 4.4 kWh per square metre a day. July is the sunniest month (84%) and March the cloudiest (71%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 73% | 2.3 |
| February | 73% | 3.1 |
| March | 71% | 4.0 |
| April | 73% | 5.1 |
| May | 74% | 5.9 |
| June | 82% | 6.7 |
| July | 84% | 6.5 |
| August | 83% | 5.8 |
| September | 82% | 4.8 |
| October | 78% | 3.5 |
| November | 77% | 2.5 |
| December | 73% | 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 Wamego need?
A normal year in Wamego brings 5,203 heating degree days, 3% fewer than the median U.S. place (5,373), and 1,402 cooling degree days, 54% more than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,040 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,131 | 0 |
| February | 893 | 0 |
| March | 671 | 3 |
| April | 346 | 17 |
| May | 112 | 98 |
| June | 8 | 280 |
| July | 0 | 434 |
| August | 2 | 371 |
| September | 59 | 168 |
| October | 302 | 29 |
| November | 661 | 1 |
| December | 1,017 | 0 |
| Year (annual) | 5,203 | 1,402 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00148563. 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 Wamego been warmer than normal lately?
2025 averaged 54.4°F, 0.1°F below the 1991-2020 normal of 54.5°F. 2 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 55.4°F | +0.9°F | 32.03 | 11.5 |
| 2022 | 53.4°F | −1.1°F | 34.85 | 20.9 |
| 2023 | 55.8°F | +1.3°F | 27.89 | 13.9 |
| 2025 | 54.4°F | −0.1°F | 35.73 | 30.2 |
Over 90 complete years from 1913 to 2025, the station's annual mean temperature rose at a fitted 1.0°F per century (+0.06°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00148563; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Wamego's climate compare?
Wamego is warmer than 54 of the other 136 places with their own NOAA record in Kansas, and wetter than 86. Across the 7,247 U.S. stations with normals, its annual mean of 54.5°F is warmer than 59%.
In the Köppen classification computed from these normals, Wamego 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 Wamego share this climate record?
12 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.
- St. Marys, KS2,784 people · 16 mi E
- St. George, KS1,150 people · 3 mi SW
- Alma, KS839 people · 14 mi S
- Westmoreland, KS732 people · 13 mi N
- McFarland, KS280 people · 13 mi SE
- Paxico, KS210 people · 15 mi SE
- Belvue, KS206 people · 10 mi E
- Emmett, KS170 people · 18 mi E
- Louisville, KS152 people · 4 mi NE
- Wabaunsee, KS76 people · 5 mi S
- Newbury, KS44 people · 14 mi SE
- Zeandale, KS21 people · 5 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 Wamego's climate
What is the coldest month in Wamego?
January, with a normal high of 39°F and a normal low of 18°F. The warmest is July (90°F by day, 68°F at night).
Does it snow in Wamego?
Yes: 17 inches in a normal year, falling on 9 days with 0.1 inch or more, the most in February (5.0 inches).
What is the rainiest month in Wamego?
June, with 5.19 in of precipitation in a normal year; the driest is January with 0.69 in.
What plant hardiness zone is Wamego in?
The USDA's 2023 map puts Wamego in zone 6b in ZIP code 66547, the nearest ZIP area. By the same method at Wamego's NOAA station, the coldest night of a typical year reaches −5°F (27 years, 1991-2020): zone 6a.
How late can frost come in Wamego?
In half of years the last 32°F night comes after April 18; in one year in ten it comes after May 2. Waiting until May 2 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kansas climateThe statewide normals and every place in the state
- Tuttle Creek Lake, KS12 miles from this station, 53.6°F a year
- Manhattan, KS17 miles from this station, 55.0°F a year
- Eskridge, KS29 miles from this station, 53.8°F a year
- Milford, KS30 miles from this station, 54.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made