Monthly climate guide
Oklahoma City weather in May
May in Oklahoma City is typically warm, with average daytime highs around 27°C (80°F) and night-time lows near 15°C (59°F). The month usually brings about 147 mm of rain (wet) and is a mix of sun and cloud. Daytime highs are 4°C warmer than April and 5°C cooler than June.
What stands out in May
- Temperatures are climbing — June is around 5°C warmer.
- Seasonally, May counts as late spring in Oklahoma City.
- It's wetter than a typical month in Oklahoma City — roughly 97% more rain than average.
- Oklahoma City is usually about 2°C cooler than Fort Worth, 310 km away, in May.
It's usually the wettest month of the year.
Avg high
27°C
80°F
Avg low
15°C
59°F
Rainfall
147 mm
wet
Humidity
69%
relative
Sky
54%
cloud · a mix of sun and cloud
Oklahoma City weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 10°C / 49°F | -2°C / 28°F | 29 mm | 68% | 46% |
| February | 12°C / 53°F | -1°C / 31°F | 41 mm | 69% | 54% |
| March | 18°C / 65°F | 5°C / 41°F | 57 mm | 66% | 53% |
| April | 23°C / 73°F | 9°C / 49°F | 107 mm | 66% | 54% |
| May | 27°C / 80°F | 15°C / 59°F | 147 mm | 69% | 54% |
| June | 32°C / 90°F | 21°C / 69°F | 94 mm | 67% | 42% |
| July | 35°C / 95°F | 23°C / 74°F | 91 mm | 61% | 40% |
| August | 34°C / 93°F | 22°C / 72°F | 81 mm | 61% | 40% |
| September | 30°C / 87°F | 18°C / 65°F | 81 mm | 63% | 39% |
| October | 23°C / 74°F | 11°C / 51°F | 81 mm | 64% | 38% |
| November | 16°C / 61°F | 4°C / 39°F | 45 mm | 67% | 42% |
| December | 10°C / 51°F | -1°C / 31°F | 41 mm | 72% | 54% |
What to pack for May
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is May a good time to visit Oklahoma City?
Compare the months in the chart above to find your ideal window.
Best time to visit Oklahoma City →Other United States cities in May
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Oklahoma City weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/oklahoma-city/may
<a href="https://weathercompare.eu/weather/usa/oklahoma-city/may">Oklahoma City weather in May</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/oklahoma-city" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Oklahoma City weather in May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/oklahoma-city/may">Oklahoma City weather in May</a> – WeatherCompare</p>
Oklahoma City in May: quick answers
Is May a good time to visit Oklahoma City?
May is one of the wetter months in Oklahoma City, with about 147 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Oklahoma City in May?
Average highs are about 27°C (80°F) and average lows about 15°C (59°F), based on 10 years of daily data.
Does it rain a lot in Oklahoma City in May?
Oklahoma City typically gets around 147 mm of rain in May — wet. It's usually the wettest month of the year.
Figures are long-term averages for the area around Oklahoma City (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.