Climate averages 1991–2020
Tulsa weather
in May.
A warm, wet month: the 5th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Tulsa: daytime highs average 25.6°C and nights cool to about 16.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 148 mm of rain on roughly 12 days, which makes May a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 04 min on an average May day.
The nearest other city in this atlas is Broken Arrow (21 km away). In May its highs average 25.4°C, about as warm as Tulsa, with 150 mm of rain.
Among the 498 cities listed in the United States, Tulsa ranks joint 177th of 498 for the warmest May highs and joint 495th of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; Tulsa is 1.8°C warmer than that mean.
From May to June, average highs rise by 4.8°C to 30.4°C, and monthly rainfall falls from 148 mm to 116 mm.
The annual picture
May 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
Tulsa 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-0.8°C | -0.8°C | 47 | 5.9 | 10.010 h |
| February | 11.0°C1.2°C | 1.2°C | 52 | 6.4 | 10.811 h |
| March | 16.1°C6.0°C | 6.0°C | 93 | 9.3 | 11.912 h |
| April | 21.1°C10.9°C | 10.9°C | 121 | 10.0 | 13.113 h |
| May, selected | 25.6°C16.4°C | 16.4°C | 148 | 12.4 | 14.114 h |
| June | 30.4°C21.5°C | 21.5°C | 116 | 9.9 | 14.615 h |
| July | 33.2°C24.0°C | 24.0°C | 79 | 8.0 | 14.414 h |
| August | 32.8°C23.5°C | 23.5°C | 73 | 6.9 | 13.514 h |
| September | 28.3°C19.1°C | 19.1°C | 101 | 7.5 | 12.412 h |
| October | 21.9°C12.7°C | 12.7°C | 93 | 8.3 | 11.311 h |
| November | 15.0°C6.3°C | 6.3°C | 63 | 6.9 | 10.310 h |
| December | 9.3°C1.0°C | 1.0°C | 57 | 6.0 | 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
May in nearby cities
- Broken Arrow in MayUnited States · 21 kmHigh 25.4°C · Low 16.4°C · 150 mm rain
- Edmond in MayUnited States · 145 kmHigh 26.2°C · Low 16.2°C · 112 mm rain
- Oklahoma City in MayUnited States · 157 kmHigh 26.1°C · Low 16.2°C · 115 mm rain
- Fayetteville, United States in MayUnited States · 165 kmHigh 23.8°C · Low 14.8°C · 142 mm rain
- Norman in MayUnited States · 167 kmHigh 26.1°C · Low 16.6°C · 113 mm rain
- Fort Smith in MayUnited States · 167 kmHigh 25.9°C · Low 16.0°C · 148 mm rain
- Springdale in MayUnited States · 167 kmHigh 23.9°C · Low 14.9°C · 133 mm rain
- Wichita in MayUnited States · 209 kmHigh 24.5°C · Low 14.5°C · 142 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 Tulsa) is explained once on the Tulsa year overview and on the Sources, method and limits page.