Climate averages 1991–2020
Broken Arrow weather
in December.
A cool, moderately wet 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 cool month in Broken Arrow: daytime highs average 9.4°C and nights cool to about 1.0°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 64 mm of rain on roughly 7 days, which makes December a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 46 min on an average December day.
The nearest other city in this atlas is Tulsa (21 km away). In December its highs average 9.3°C, about as warm as Broken Arrow, with 57 mm of rain.
Among the 498 cities listed in the United States, Broken Arrow ranks 272nd of 498 for the warmest December highs and joint 238th of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; Broken Arrow is 1.1°C cooler than that mean.
From December to January, average highs fall by 1.2°C to 8.2°C, and monthly rainfall falls from 64 mm to 53 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
Broken Arrow climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.2°C-0.7°C | -0.7°C | 53 | 6.3 | 10.010 h |
| February | 11.1°C1.3°C | 1.3°C | 56 | 6.6 | 10.811 h |
| March | 16.1°C6.0°C | 6.0°C | 96 | 9.8 | 11.912 h |
| April | 21.0°C10.9°C | 10.9°C | 127 | 10.5 | 13.113 h |
| May | 25.4°C16.4°C | 16.4°C | 150 | 12.3 | 14.114 h |
| June | 30.2°C21.4°C | 21.4°C | 113 | 9.7 | 14.615 h |
| July | 32.9°C23.9°C | 23.9°C | 79 | 7.6 | 14.414 h |
| August | 32.6°C23.3°C | 23.3°C | 71 | 6.9 | 13.514 h |
| September | 28.1°C19.0°C | 19.0°C | 101 | 7.6 | 12.412 h |
| October | 21.9°C12.7°C | 12.7°C | 96 | 8.1 | 11.311 h |
| November | 15.0°C6.3°C | 6.3°C | 70 | 7.1 | 10.310 h |
| December, selected | 9.4°C1.0°C | 1.0°C | 64 | 6.5 | 9.810 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
- Tulsa in DecemberUnited States · 21 kmHigh 9.3°C · Low 1.0°C · 57 mm rain
- Fort Smith in DecemberUnited States · 146 kmHigh 10.7°C · Low 1.6°C · 96 mm rain
- Fayetteville, United States in DecemberUnited States · 147 kmHigh 8.4°C · Low 0.3°C · 76 mm rain
- Springdale in DecemberUnited States · 150 kmHigh 8.5°C · Low 0.4°C · 70 mm rain
- Edmond in DecemberUnited States · 158 kmHigh 9.5°C · Low 0.6°C · 43 mm rain
- Oklahoma City in DecemberUnited States · 169 kmHigh 9.7°C · Low 0.6°C · 46 mm rain
- Norman in DecemberUnited States · 175 kmHigh 10.0°C · Low 1.5°C · 48 mm rain
- Wichita in DecemberUnited States · 228 kmHigh 7.0°C · Low -1.9°C · 38 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 Broken Arrow) is explained once on the Broken Arrow year overview and on the Sources, method and limits page.