Climate averages 1991–2020
Norman weather
in January.
A cool, fairly dry month: the coolest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cool month in Norman: daytime highs average 9.3°C and nights cool to about 0.1°C. By daytime temperature it is the coolest month of the year.
Expect about 37 mm of rain on roughly 5 days, which makes January a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 04 min on an average January day.
The nearest other city in this atlas is Oklahoma City (28 km away). In January its highs average 9.0°C, about as warm as Norman, with 37 mm of rain.
Among the 498 cities listed in the United States, Norman ranks joint 254th of 498 for the warmest January highs and joint 76th of 498 for the driest January (rainfall, lowest first). The mean January high of those 498 cities is 9.5°C; Norman is 0.2°C cooler than that mean.
From January to February, average highs rise by 2.7°C to 12.0°C, and monthly rainfall rises from 37 mm to 46 mm.
The annual picture
January 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
Norman climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 9.3°C0.1°C | 0.1°C | 37 | 4.7 | 10.110 h |
| February | 12.0°C1.9°C | 1.9°C | 46 | 5.7 | 10.911 h |
| March | 16.8°C6.6°C | 6.6°C | 74 | 7.7 | 11.912 h |
| April | 21.7°C11.3°C | 11.3°C | 100 | 8.6 | 13.113 h |
| May | 26.1°C16.6°C | 16.6°C | 113 | 10.7 | 14.014 h |
| June | 30.7°C21.6°C | 21.6°C | 95 | 9.0 | 14.514 h |
| July | 33.6°C24.1°C | 24.1°C | 55 | 6.2 | 14.314 h |
| August | 33.2°C23.8°C | 23.8°C | 57 | 6.5 | 13.513 h |
| September | 28.6°C19.4°C | 19.4°C | 73 | 6.6 | 12.412 h |
| October | 22.4°C13.1°C | 13.1°C | 76 | 7.0 | 11.311 h |
| November | 15.5°C6.7°C | 6.7°C | 50 | 5.8 | 10.410 h |
| December | 10.0°C1.5°C | 1.5°C | 48 | 5.1 | 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
January in nearby cities
- Oklahoma City in JanuaryUnited States · 28 kmHigh 9.0°C · Low -0.8°C · 37 mm rain
- Edmond in JanuaryUnited States · 48 kmHigh 8.8°C · Low -0.8°C · 35 mm rain
- Lawton in JanuaryUnited States · 110 kmHigh 10.8°C · Low 0.2°C · 35 mm rain
- Tulsa in JanuaryUnited States · 167 kmHigh 8.2°C · Low -0.8°C · 47 mm rain
- Wichita Falls in JanuaryUnited States · 175 kmHigh 12.5°C · Low 1.7°C · 37 mm rain
- Broken Arrow in JanuaryUnited States · 175 kmHigh 8.2°C · Low -0.7°C · 53 mm rain
- Denton in JanuaryUnited States · 225 kmHigh 12.3°C · Low 3.1°C · 62 mm rain
- Frisco in JanuaryUnited States · 237 kmHigh 12.3°C · Low 3.0°C · 67 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 Norman) is explained once on the Norman year overview and on the Sources, method and limits page.