Norman (OK) Weather & Climate: Best Time to Visit

In Norman, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a very warm 34°C (93°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 11°C (52°F).

At night, temperatures range from around 22°C (72°F) in August to -3°C (27°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Norman receives a reasonable amount of rain/snowfall, with an annual precipitation of 966 mm (38 in). Norman can be quite wet during May, receiving approximately 165 mm (6.5 in) of precipitation over 11 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 23 mm (0.9 in) of precipitation spread across 4 rainy days. For more details, please visit our Norman Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Norman can be enjoyed more throughout the sunniest month of August under a blue sky, with approximately 11.3 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 5.4 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is moderate throughout the year in Norman.

The city experiences its highest humidity in January, reaching 62%. In August, the humidity drops to its lowest level at 48%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year

The mean wind speed over the year ranges from 5 m/s (10 knots) in July, August and September to 7 m/s (14 knots) in March and April. What does this mean?

The mean monthly wind speed over the year (meters per second)