Climateby Month

Lee's Summit, MO climate by month

NOAA 1991-2020 normals · 1,039 ft elevation

Lee's Summit has warm and humid summers and cold winters. Highs peak at 87°F in July and fall to 38°F in January. The wettest month is May (about 10 wet days) and the driest is February (about 5). Normal snowfall is about 8.6 in a year. By our comfort score the best months are April and May.

Warmest month
87°F
July normal high
Coldest month
19°F
January normal low
Wet days a year
82
43.9 in of precipitation
Snow a year
8.6 in
normal snowfall

How warm is Lee's Summit?

Normal highs range from 38°F in January to 87°F in July.

0°20°40°60°80°100° January: normal high 38°F (3°C), low 19°F (-7°C) 38° 19° February: normal high 43°F (6°C), low 23°F (-5°C) March: normal high 55°F (13°C), low 33°F (1°C) April: normal high 65°F (18°C), low 43°F (6°C) May: normal high 74°F (23°C), low 54°F (12°C) June: normal high 83°F (28°C), low 64°F (18°C) July: normal high 87°F (31°C), low 68°F (20°C) 87° 68° August: normal high 86°F (30°C), low 66°F (19°C) September: normal high 78°F (26°C), low 57°F (14°C) October: normal high 67°F (19°C), low 45°F (7°C) November: normal high 53°F (12°C), low 34°F (1°C) December: normal high 42°F (6°C), low 24°F (-4°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Lee's Summit?

May has the most wet days (about 10); the year brings about 44 in of precipitation.

January: 5 wet days February: 5 wet days 5 March: 7 wet days April: 9 wet days May: 10 wet days 10 June: 8 wet days July: 8 wet days August: 7 wet days September: 7 wet days October: 7 wet days November: 5 wet days December: 5 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How much does it snow?

Normal snowfall is 8.6 in a year, most of it in January.

January: 2.6 in of snow 2.6 February: 1.6 in of snow March: 1.1 in of snow April: 0.1 in of snow May: 0.0 in of snow 0.0 June: 0.0 in of snow July: 0.0 in of snow August: 0.0 in of snow September: 0.0 in of snow October: 0.3 in of snow November: 0.5 in of snow December: 2.4 in of snow JFMAMJJASOND

How humid is Lee's Summit?

Muggy days peak in July, at about 20 days.

January: 0 muggy days 0 February: 0 muggy days March: 0 muggy days April: 0 muggy days May: 3 muggy days June: 14 muggy days July: 20 muggy days 20 August: 19 muggy days September: 8 muggy days October: 1 muggy days November: 0 muggy days December: 0 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at C.r. Wheeler Downtown Arpt, 19 mi NW of the city center (the nearest airport with complete hourly records).

How much daylight?

Daylight ranges from about 9.5 hours in December to 14.9 hours in June.

January: 9.8 hours of daylight February: 10.8 hours of daylight March: 12.0 hours of daylight April: 13.2 hours of daylight May: 14.3 hours of daylight June: 14.8 hours of daylight 14.8 July: 14.6 hours of daylight August: 13.6 hours of daylight September: 12.4 hours of daylight October: 11.2 hours of daylight November: 10.1 hours of daylight December: 9.5 hours of daylight 9.5 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Lee's Summit, 1991-2020
MonthHighLowPrecip.Wet daysSnowMuggy daysDaylight
January 38°F19°F 1.5 in5 2.6 in 0 9.8 h
February 43°F23°F 1.9 in5 1.6 in 0 10.8 h
March 55°F33°F 2.8 in7 1.1 in 0 12.0 h
April 65°F43°F 4.3 in9 0.1 in 0 13.2 h
May 74°F54°F 6.2 in10 0.0 in 3 14.3 h
June 83°F64°F 5.5 in8 0.0 in 14 14.8 h
July 87°F68°F 4.7 in8 0.0 in 20 14.6 h
August 86°F66°F 4.7 in7 0.0 in 19 13.6 h
September 78°F57°F 4.3 in7 0.0 in 8 12.4 h
October 67°F45°F 3.6 in7 0.3 in 1 11.2 h
November 53°F34°F 2.4 in5 0.5 in 0 10.1 h
December 42°F24°F 1.9 in5 2.4 in 0 9.5 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Lee's Summit

By our comfort score, the best months are April and May.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 331418
Feb 412412
Mar 55855
Apr 681471
May 691381
Jun 54376
Jul 482712
Aug 493610
Sep 601053
Oct 641450
Nov 49645
Dec 361314

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Lee's Summit

The last spring frost typically comes around Apr 7, and the first fall frost around Oct 29, leaving 202 frost-free days in a typical year.

Frost and freeze dates for Lee's Summit
Typical date1 year in 10
Last spring frost (32°F)Apr 7after Apr 24
First fall frost (32°F)Oct 29before Oct 14
Last hard freeze (28°F)Mar 28after Apr 11
First hard freeze (28°F)Nov 7before Oct 24
Frost-free season202 daysunder 180 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Lees Summit Muni Airport (USW00053879), NOAA 1991-2020 freeze probabilities. Frost dates for every city in Missouri.

Hottest and coldest readings, 1991-2020

The highest reading was 107°F (August 3, 2011, and 1 other day); the lowest was -14°F (January 30, 2019).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Lee's Summit

Similar climates elsewhere

Where the numbers come from

  • Temperature: Independence (USC00234154), 11 mi N of the city center, 985 ft (54 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Rain and snowfall: Unity Village (USC00238524), 2.7 mi NNW of the city center, 942 ft (97 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Snow depth: Pleasant Hill WFO (USC00236745), 9.4 mi SE of the city center, 1,000 ft . NOAA normals and daily records, 1991-2020.
  • Frost dates: Lees Summit Muni Airport (USW00053879), 3.4 mi N of the city center, 997 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Kansas City Downtown Airport (USW00013988), 19 mi NW of the city center, 742 ft (297 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: C.r. Wheeler Downtown Arpt (724463-13988), 19 mi NW of the city center, 742 ft (297 ft lower than the city). Hourly observations, 1991-2020.

Distances from the city center (USGS). Methodology · Report an error