Climate averages 1991–2020
Lee's Summit weather
in December.
A cold, moderately wet month: the 11th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Lee's Summit: daytime highs average 5.4°C and nights cool to about -2.7°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 46 mm of rain on roughly 6 days, which makes December a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 30 min on an average December day.
The nearest other city in this atlas is Independence (20 km away). In December its highs average 4.9°C, about as warm as Lee's Summit, with 46 mm of rain.
Among the 498 cities listed in the United States, Lee's Summit ranks joint 351st of 498 for the warmest December highs and joint 108th of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; Lee's Summit is 5.2°C cooler than that mean.
From December to January, average highs fall by 1.9°C to 3.4°C, and monthly rainfall falls from 46 mm to 37 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Lee's Summit climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.4°C-5.3°C | -5.3°C | 37 | 5.9 | 9.810 h |
| February | 6.2°C-3.2°C | -3.2°C | 50 | 6.1 | 10.711 h |
| March | 12.2°C2.0°C | 2.0°C | 78 | 9.3 | 11.912 h |
| April | 17.8°C7.7°C | 7.7°C | 124 | 11.2 | 13.213 h |
| May | 23.1°C13.7°C | 13.7°C | 143 | 12.9 | 14.314 h |
| June | 28.2°C19.1°C | 19.1°C | 124 | 11.7 | 14.815 h |
| July | 30.6°C21.7°C | 21.7°C | 94 | 9.3 | 14.615 h |
| August | 29.8°C20.8°C | 20.8°C | 94 | 9.0 | 13.714 h |
| September | 25.3°C16.2°C | 16.2°C | 93 | 8.1 | 12.512 h |
| October | 18.6°C9.7°C | 9.7°C | 85 | 8.1 | 11.211 h |
| November | 11.3°C3.0°C | 3.0°C | 61 | 6.7 | 10.110 h |
| December, selected | 5.4°C-2.7°C | -2.7°C | 46 | 5.8 | 9.59 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Independence in DecemberUnited States · 20 kmHigh 4.9°C · Low -3.0°C · 46 mm rain
- Overland Park in DecemberUnited States · 26 kmHigh 5.1°C · Low -2.8°C · 45 mm rain
- Kansas City in DecemberUnited States · 27 kmHigh 5.2°C · Low -3.0°C · 46 mm rain
- Olathe in DecemberUnited States · 38 kmHigh 5.4°C · Low -2.7°C · 45 mm rain
- Lawrence (Kansas), United States in DecemberUnited States · 74 kmHigh 5.5°C · Low -2.8°C · 44 mm rain
- Saint Joseph in DecemberUnited States · 103 kmHigh 4.4°C · Low -4.0°C · 45 mm rain
- Topeka in DecemberUnited States · 113 kmHigh 5.6°C · Low -3.0°C · 41 mm rain
- Columbia (Missouri), United States in DecemberUnited States · 177 kmHigh 5.8°C · Low -2.0°C · 59 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Lee's Summit) is explained once on the Lee's Summit year overview and on the Sources, method and limits page.
Kansas City and Independence lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.