Stillwater, OK

Climate overview — based on NOAA 1991-2020 normals from STILLWATER 2 W, OK US.

Cfa Humid subtropical climate 8a USDA hardiness Zone 8a

Year-round temperatures (°F)

20° 40° 60° 80° 100° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Stillwater has an annual average temperature of 60.2°F with about 36 inches of precipitation per year. The warmest month is July (average high 93.6°F), and the coldest is January (average low 25.7°F). May is typically the wettest month (4.71 in) and January the driest (1.32 in).

Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
45.1°F
warmest to coldest month
Heating need
3,477
Cooling need
1,731

Best time to visit Stillwater

Full guide →

Climate change signal

All-time records →

170 of 366 (46.4%) of Stillwater's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

2000s
87
2010s
163
2020s
116

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 49.1°F 25.7°F 37.4°F 1.32 in 6
February 53.7°F 29.6°F 41.7°F 1.56 in 8
March 63.2°F 38.4°F 50.8°F 2.75 in 7
April 71.8°F 47.2°F 59.5°F 4.15 in 9
May 79.4°F 57.5°F 68.5°F 4.71 in 12
June 88.2°F 67.1°F 77.6°F 4.64 in 10
July 93.6°F 71.4°F 82.5°F 3.42 in 7
August 92.8°F 69.8°F 81.3°F 3.66 in 9
September 84.7°F 61.0°F 72.8°F 2.94 in 7
October 73.4°F 48.8°F 61.1°F 2.94 in 8
November 61.2°F 36.9°F 49.0°F 2.28 in 6
December 50.6°F 28.6°F 39.6°F 1.67 in 6

Climate twins of Stillwater

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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