Leavenworth, Kansas climate: Normal weather by month, frost dates and records
Leavenworth's normal year runs from 21°F January nights to 91°F July afternoons, with 41.3 inches of precipitation and 19 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.2°C, January lows of −6°C, July highs of 33°C, 1,048 mm of precipitation a year.
- NOAA stationLeavenworth
- Station IDUSC00144588
- Location39.33°N 94.92°W
- Elevation870 ft (265 m)
- Population37,370
On October 23, the normal high in Leavenworth is 65°F and the normal low 44°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 Leavenworth.
- Jan 39° 21°
- Feb 45° 24°
- Mar 57° 34°
- Apr 67° 44°
- May 77° 55°
- Jun 86° 65°
- Jul 91° 69°
- Aug 89° 68°
- Sep 81° 58°
- Oct 68° 46°
- Nov 54° 34°
- Dec 43° 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 Leavenworth each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 21°F. The most precipitation falls in June (5.49 in), the least in January (1.05 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 39°F | 21°F | 30.0°F | 1.05 | 4.8 | 5 | <1 | 27 | 9 h 40 min |
| February | 45°F | 24°F | 34.6°F | 1.58 | 5.6 | 5 | <1 | 21 | 10 h 40 min |
| March | 57°F | 34°F | 45.0°F | 2.36 | 1.5 | 7 | <1 | 14 | 11 h 50 min |
| April | 67°F | 44°F | 55.6°F | 4.11 | 0.0 | 10 | <1 | 3 | 13 h 10 min |
| May | 77°F | 55°F | 66.1°F | 5.24 | 0.0 | 11 | 2 | <1 | 14 h 20 min |
| June | 86°F | 65°F | 75.4°F | 5.49 | 0.0 | 10 | 8 | <1 | 15 h |
| July | 91°F | 69°F | 79.9°F | 4.32 | 0.0 | 8 | 18 | <1 | 14 h 40 min |
| August | 89°F | 68°F | 78.3°F | 5.30 | 0.0 | 7 | 15 | <1 | 13 h 50 min |
| September | 81°F | 58°F | 69.4°F | 4.58 | 0.0 | 8 | 3 | <1 | 12 h 30 min |
| October | 68°F | 46°F | 57.2°F | 3.56 | 0.4 | 8 | <1 | 2 | 11 h 10 min |
| November | 54°F | 34°F | 44.2°F | 1.98 | 1.0 | 6 | <1 | 14 | 10 h |
| December | 43°F | 25°F | 33.9°F | 1.70 | 5.5 | 5 | <1 | 25 | 9 h 30 min |
| Year (annual) | 66°F | 45°F | 55.8°F | 41.27 | 18.8 | 89 | 46 | 105 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 4°C | −6°C | −1.1°C | 27 mm | 12 cm |
| February | 7°C | −4°C | 1.4°C | 40 mm | 14 cm |
| March | 14°C | 1°C | 7.2°C | 60 mm | 4 cm |
| April | 19°C | 7°C | 13.1°C | 104 mm | 0 cm |
| May | 25°C | 13°C | 18.9°C | 133 mm | 0 cm |
| June | 30°C | 18°C | 24.1°C | 139 mm | 0 cm |
| July | 33°C | 21°C | 26.6°C | 110 mm | 0 cm |
| August | 32°C | 20°C | 25.7°C | 135 mm | 0 cm |
| September | 27°C | 15°C | 20.8°C | 116 mm | 0 cm |
| October | 20°C | 8°C | 14.0°C | 90 mm | 1 cm |
| November | 12°C | 1°C | 6.8°C | 50 mm | 3 cm |
| December | 6°C | −4°C | 1.1°C | 43 mm | 14 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00144588; 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 Leavenworth?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, September has the fewest days with rain (8).
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 USC00144588.
When is the last frost in Leavenworth?
In Leavenworth, the last spring frost (32°F) comes after April 12 in half of years and after April 25 in one year in ten; the first autumn frost comes before October 27 in half of years and before October 13 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 121 year in 10 after April 25; 9 in 10 after March 31
- First autumn frost, half of years before
- October 271 year in 10 before October 13; 9 in 10 before November 7
NOAA puts the median frost-free season at 196 days, and the season without a hard freeze (28°F) at 215 days.
A hard freeze (28°F) comes after April 3 in half of springs and before November 4 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Leavenworth in zone 6b across its 2 ZIP code areas (6b in 66048, the largest).
Frost dates for every NOAA station in Kansas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00144588; 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.
What hardiness zone is each Leavenworth ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Leavenworth's 2 ZIP code areas are all in zone 6b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Leavenworth?
In a normal year in Leavenworth, 46 days a year reach 90°F (5 of them 100°F or more), 105 nights fall to 32°F or colder and 89 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
- 105a normal year
- Days that stay below freezing
- 22high of 32°F or less
- Days with 0.01 inch of precipitation
- 89a normal year
- Days with 1 inch of snow or more
- 6a normal year
The highest temperature in this station's record (since 1891) is 114°F, on August 14, 1936; the lowest is −27°F, on December 23, 1989.
The wettest calendar year on that record is 1961, with 63.70 in; the snowiest season is 1959–60, with 51.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00144588; records: ACIS (NOAA Regional Climate Centers), station USC00144588. Records use complete months only; a month missing more than three days is left out.
How sunny is Leavenworth?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Leavenworth, 4.2 kWh per square metre a day. July is the sunniest month (83%) and March the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 2.1 |
| February | 71% | 3.0 |
| March | 69% | 3.9 |
| April | 71% | 5.0 |
| May | 73% | 5.7 |
| June | 80% | 6.5 |
| July | 83% | 6.5 |
| August | 82% | 5.7 |
| September | 82% | 4.8 |
| October | 75% | 3.4 |
| November | 74% | 2.4 |
| December | 70% | 1.9 |
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 Leavenworth need?
A normal year in Leavenworth brings 4,862 heating degree days, 10% fewer than the median U.S. place (5,373), and 1,545 cooling degree days, 70% 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 4,281 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,085 | 0 |
| February | 853 | 0 |
| March | 622 | 3 |
| April | 306 | 24 |
| May | 85 | 119 |
| June | 4 | 316 |
| July | 0 | 460 |
| August | 1 | 415 |
| September | 45 | 176 |
| October | 272 | 30 |
| November | 627 | 1 |
| December | 964 | 0 |
| Year (annual) | 4,862 | 1,545 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00144588. 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.
How does Leavenworth's climate compare?
Leavenworth is warmer than 96 of the other 136 places with their own NOAA record in Kansas, and wetter than 123. Across the 7,247 U.S. stations with normals, its annual mean of 55.8°F is warmer than 63%.
In the Köppen classification computed from these normals, Leavenworth 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 Leavenworth share this climate record?
10 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.
- Parkville, MO8,980 people · 14 mi SE
- Platte City, MO4,867 people · 9 mi E
- Weatherby Lake, MO2,125 people · 13 mi SE
- Weston, MO1,837 people · 6 mi N
- Dearborn, MO506 people · 16 mi NE
- Camden Point, MO473 people · 13 mi NE
- Tracy, MO319 people · 8 mi NE
- Farley, MO263 people · 5 mi SE
- Easton, KS213 people · 11 mi W
- New Market, MO65 people · 14 mi NE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Leavenworth's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Leavenworth. This page uses Leavenworth; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Leavenworth (3 mi SW) USC00144589 | 3 mi SW | 871 ft | 52.9°F | 15°F | 87°F | 39.1 | – | April 19 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Leavenworth's climate
What is the coldest month in Leavenworth?
January, with a normal high of 39°F and a normal low of 21°F. The warmest is July (91°F by day, 69°F at night).
Does it snow in Leavenworth?
Yes: 19 inches in a normal year, falling on 9 days with 0.1 inch or more, the most in February (5.6 inches).
What is the rainiest month in Leavenworth?
June, with 5.49 in of precipitation in a normal year; the driest is January with 1.05 in.
What plant hardiness zone is Leavenworth in?
The USDA's 2023 map puts Leavenworth in zone 6b across its 2 ZIP code areas (6b in 66048, the largest).
How late can frost come in Leavenworth?
In half of years the last 32°F night comes after April 12; in one year in ten it comes after April 25. Waiting until April 25 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kansas climateThe statewide normals and every place in the state
- Kansas City, MO11 miles from this station, 54.7°F a year
- Bonner Springs, KS18 miles from this station, 53.6°F a year
- Oskaloosa, KS20 miles from this station, 54.5°F a year
- Atchison, KS20 miles from this station, 54.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made