Oklahoma City
Oklahoma, USA
Long term weather forecast
Long term weather forecast

September weather forecast and Climate
Oklahoma City, OK

  • Average high temperature in September: 84.7°F

Warmest month (with highest average high temperature) is July (93.9°F).
Month with lowest average high temperature is January (49.7°F).

  • Average low temperature in September: 63.2°F

Month with highest average low temperature is July (72.2°F).
Coldest month (with lowest average low temperature) is January (28.8°F).

  • Average humidity in September: 67.1%

Month with highest relative humidity is December (67.8%).
Month with lowest relative humidity is July (60.9%).

  • Average rainfall in September: 4.1"

Wettest month (with highest rainfall) is June (4.9").
Driest month (with lowest rainfall) is January (1.4").

  • Average rainfall days in September: 7.2 days

Month with highest number of rainy days is May (9.8 days).
Month with lowest number of rainy days is January (5.1 days).

  • Average snowfall in September: 0"

Month with highest snowfall is January (2.8").
Months with lowest snowfall are April, May, June, July, August, September and October (0").

  • Average snowfall days in September: 0 days

Month with highest number of snowfall days is December (1.7 days).
Months with lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

  • Average daylight in September: 12h

Month with longest days is June (Average daylight: 15).
Months with shortest days are January, November and December (Average daylight: 10).

  • Average sunshine in September: 8.8h

Month with most sunshine is July (Average sunshine: 11.5).
Month with least sunshine is December (Average sunshine: 5.8).

  • Average UV index in September: 8

Months with highest UV index are June and July (UV index 10).
Month with lowest UV index is December (UV index 2).

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