Climate averages 1991–2020
Omaha weather
in December.
A cold, fairly dry month: the 11th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Omaha: daytime highs average 2.2°C and nights cool to about -6.3°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 36 mm of rain on roughly 5 days, which makes December a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 16 min on an average December day.
The nearest other city in this atlas is Lincoln (79 km away). In December its highs average 3.1°C, 1.0°C warmer than Omaha, with 34 mm of rain.
Among the 498 cities listed in the United States, Omaha ranks joint 439th of 498 for the warmest December highs and joint 72nd of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; Omaha is 8.4°C cooler than that mean.
From December to January, average highs fall by 2.1°C to 0.0°C, and monthly precipitation falls from 36 mm to 26 mm.
The annual picture
December in context
Monthly precipitation
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
Omaha climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 0.0°C-9.2°C | -9.2°C | 26 | 4.8 | 9.610 h |
| February | 2.7°C-7.3°C | -7.3°C | 32 | 5.7 | 10.611 h |
| March | 9.9°C-1.0°C | -1.0°C | 60 | 7.8 | 11.912 h |
| April | 16.3°C5.5°C | 5.5°C | 104 | 11.0 | 13.313 h |
| May | 22.0°C11.9°C | 11.9°C | 139 | 12.7 | 14.514 h |
| June | 27.3°C17.6°C | 17.6°C | 131 | 11.4 | 15.115 h |
| July | 29.6°C20.3°C | 20.3°C | 88 | 9.3 | 14.815 h |
| August | 28.6°C19.3°C | 19.3°C | 90 | 9.1 | 13.814 h |
| September | 24.8°C14.8°C | 14.8°C | 77 | 8.1 | 12.513 h |
| October | 17.4°C7.8°C | 7.8°C | 68 | 7.5 | 11.111 h |
| November | 9.2°C0.2°C | 0.2°C | 44 | 5.2 | 9.910 h |
| December, selected | 2.2°C-6.3°C | -6.3°C | 36 | 5.1 | 9.39 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
- Lincoln in DecemberUnited States · 79 kmHigh 3.1°C · Low -5.5°C · 34 mm rain
- Sioux City in DecemberUnited States · 143 kmHigh 0.3°C · Low -8.0°C · 30 mm precipitation
- Saint Joseph in DecemberUnited States · 190 kmHigh 4.4°C · Low -4.0°C · 45 mm rain
- Des Moines in DecemberUnited States · 198 kmHigh 1.5°C · Low -6.5°C · 41 mm precipitation
- Topeka in DecemberUnited States · 247 kmHigh 5.6°C · Low -3.0°C · 41 mm rain
- Lawrence (Kansas), United States in DecemberUnited States · 261 kmHigh 5.5°C · Low -2.8°C · 44 mm rain
- Sioux Falls in DecemberUnited States · 262 kmHigh -1.3°C · Low -9.5°C · 27 mm precipitation
- Kansas City in DecemberUnited States · 266 kmHigh 5.2°C · Low -3.0°C · 46 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 Omaha) is explained once on the Omaha year overview and on the Sources, method and limits page.