Lee's Summit weather in December: Lee's Summit, Missouri: normal highs, lows, rain and records for December
Lee's Summit in December has a normal high of 43°F and a normal low of 26°F, a daily mean of 35°F, falling from 48°F on the 1st to 40°F by the 31st. Measurable precipitation falls on 6 days in a normal December, 1.35 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 6°C and low of −3°C, 34 mm of precipitation in December.
- NOAA stationLees Summit Municipal Airport
- Station IDUSW00053879
- Location38.96°N 94.37°W
- Elevation997 ft (304 m)
- From the center3 miles
- Population106,419
- Jan 39° 22°
- Feb 44° 26°
- Mar 55° 35°
- Apr 66° 46°
- May 75° 56°
- Jun 84° 65°
- Jul 88° 70°
- Aug 87° 68°
- Sep 79° 59°
- Oct 67° 47°
- Nov 54° 36°
- Dec 43° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lee's Summit in December?
The normal high is 43°F and the normal low 26°F, for a daily mean of 34.7°F. December is 10.4°F cooler than November and 4.1°F warmer than January. December is the 11th warmest month of the year in Lee's Summit and the 11th wettest. Across the month the normal high falls 8°F, from 48°F on December 1 to 40°F on December 31. From one year to the next December's mean temperature typically moves about 4.1°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 31°F and 39°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 20%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 48°F | 31°F | 20% | 10% |
| December 8 | 45°F | 28°F | 19% | 9% |
| December 15 | 43°F | 26°F | 19% | 9% |
| December 22 | 41°F | 25°F | 19% | 9% |
| December 31 | 40°F | 23°F | 18% | 9% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 48°F | 31°F | 20% | 10% | 9 h 40 min |
| December 2 | 47°F | 30°F | 20% | 10% | 9 h 40 min |
| December 3 | 47°F | 30°F | 20% | 10% | 9 h 40 min |
| December 4 | 47°F | 30°F | 19% | 10% | 9 h 40 min |
| December 5 | 46°F | 29°F | 19% | 10% | 9 h 40 min |
| December 6 | 46°F | 29°F | 19% | 10% | 9 h 30 min |
| December 7 | 46°F | 29°F | 19% | 9% | 9 h 30 min |
| December 8 | 45°F | 28°F | 19% | 9% | 9 h 30 min |
| December 9 | 45°F | 28°F | 19% | 9% | 9 h 30 min |
| December 10 | 45°F | 28°F | 19% | 9% | 9 h 30 min |
| December 11 | 44°F | 27°F | 19% | 9% | 9 h 30 min |
| December 12 | 44°F | 27°F | 19% | 9% | 9 h 30 min |
| December 13 | 44°F | 27°F | 19% | 9% | 9 h 30 min |
| December 14 | 44°F | 27°F | 19% | 9% | 9 h 30 min |
| December 15 | 43°F | 26°F | 19% | 9% | 9 h 30 min |
| December 16 | 43°F | 26°F | 19% | 9% | 9 h 30 min |
| December 17 | 43°F | 26°F | 19% | 9% | 9 h 30 min |
| December 18 | 42°F | 26°F | 19% | 9% | 9 h 30 min |
| December 19 | 42°F | 25°F | 19% | 9% | 9 h 30 min |
| December 20 | 42°F | 25°F | 19% | 9% | 9 h 30 min |
| December 21 | 42°F | 25°F | 19% | 9% | 9 h 30 min |
| December 22 | 41°F | 25°F | 19% | 9% | 9 h 30 min |
| December 23 | 41°F | 24°F | 19% | 9% | 9 h 30 min |
| December 24 | 41°F | 24°F | 19% | 9% | 9 h 30 min |
| December 25 | 41°F | 24°F | 18% | 9% | 9 h 30 min |
| December 26 | 41°F | 24°F | 18% | 9% | 9 h 30 min |
| December 27 | 40°F | 24°F | 18% | 9% | 9 h 30 min |
| December 28 | 40°F | 23°F | 18% | 9% | 9 h 30 min |
| December 29 | 40°F | 23°F | 18% | 9% | 9 h 30 min |
| December 30 | 40°F | 23°F | 18% | 9% | 9 h 30 min |
| December 31 | 40°F | 23°F | 18% | 9% | 9 h 30 min |
- Normal high
- 43°FDecember average
- Normal low
- 26°FDecember average
- Precipitation
- 1.35 inmonth total
- Days with precipitation
- 60.01 inch or more
- Nights at 32°F or colder
- 23
- Daylight
- 9 h 40 min to 9 h 30 minDecember 1 to December 31
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00053879; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Lee's Summit in December?
On a given December day the chance of 0.01 inch or more is 19% on average, highest around December 1 (20%). In all, 1.35 in falls on 6 days of a normal December.
In a normal December in Lee's Summit, 23 nights fall to freezing and 6 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053879.
What are the records for December in Lee's Summit?
The December mean against the 1991-2020 normal of 34.7°F: 2021 44.5°F (+9.8), 2022 32.4°F (−2.3), 2023 42.6°F (+7.9), 2024 38.4°F (+3.7), 2025 36.3°F (+1.6). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 44.5°F | +9.8°F | 0.69 in |
| 2022 | 32.4°F | −2.3°F | 0.01 in |
| 2023 | 42.6°F | +7.9°F | 3.04 in |
| 2024 | 38.4°F | +3.7°F | 0.59 in |
| 2025 | 36.3°F | +1.6°F | 0.37 in |
Source: recent months: ACIS, station USW00053879. Records and recent months use complete months only.
How does December in Lee's Summit compare across Missouri?
Across the 134 places PlainClimate covers in Missouri, December normal highs run from 37°F in Tarkio to 49°F in Neosho; Lee's Summit's is 43°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Lee's Summit in November54°F by day, 36°F at night
- Lee's Summit in January39°F by day, 22°F at night
- Lee's Summit through the yearEvery month, frost dates, records and recent years
- Missouri in DecemberThe statewide normal and the warmest and coolest places
- Neosho: Missouri's warmest Decembernormal high 49°F