Climate averages 1991–2020
Norman weather
in April.
A mild, wet month: the 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Norman: daytime highs average 21.7°C and nights cool to about 11.3°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 100 mm of rain on roughly 9 days, which makes April a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 03 min on an average April day.
The nearest other city in this atlas is Oklahoma City (28 km away). In April its highs average 21.6°C, about as warm as Norman, with 98 mm of rain.
Among the 498 cities listed in the United States, Norman ranks joint 170th of 498 for the warmest April highs and joint 359th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Norman is 2.3°C warmer than that mean.
From April to May, average highs rise by 4.4°C to 26.1°C, and monthly rainfall rises from 100 mm to 113 mm.
The annual picture
April 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 | 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, selected | 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
April in nearby cities
- Oklahoma City in AprilUnited States · 28 kmHigh 21.6°C · Low 10.7°C · 98 mm rain
- Edmond in AprilUnited States · 48 kmHigh 21.6°C · Low 10.8°C · 99 mm rain
- Lawton in AprilUnited States · 110 kmHigh 23.1°C · Low 11.5°C · 92 mm rain
- Tulsa in AprilUnited States · 167 kmHigh 21.1°C · Low 10.9°C · 121 mm rain
- Wichita Falls in AprilUnited States · 175 kmHigh 24.4°C · Low 12.8°C · 85 mm rain
- Broken Arrow in AprilUnited States · 175 kmHigh 21.0°C · Low 10.9°C · 127 mm rain
- Denton in AprilUnited States · 225 kmHigh 23.3°C · Low 13.4°C · 96 mm rain
- Frisco in AprilUnited States · 237 kmHigh 23.2°C · Low 13.1°C · 110 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.