The highest day temperature in May 2026 was 104°F. The lowest night temperature was 47°F. The average values for day and night temperatures during May were 82.9°F и 64.2°F respectivly.

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation total in May for Oklahoma City is 2.9 in. It makes may the most rainy month of the year.

The average wind speed in May is 12.5 mph. It makes May one of the most windy months of the year for Oklahoma City.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Oklahoma City in May is 8.9 hours.