Stillwater (OK) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Stillwater

Stillwater average temperature chart (Celsius) Stillwater average temperature chart (Fahrenheit)
Average monthly temperatures in Stillwater (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8 11.2 16.8 22.8 26.7 31.2 34.5 34.1 29.2 23.6 15.9 9.8
°F 46.4 52.1 62.2 73.1 80.1 88.2 94.2 93.3 84.6 74.5 60.6 49.6

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Stillwater monthly rainfall chart (mm) Stillwater monthly rainfall chart (inches)
Average monthly rainfall in Stillwater (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 30 39 72 73 132 101 72 69 107 73 58 34
inches 1.2 1.5 2.8 2.9 5.2 4 2.8 2.7 4.2 2.9 2.3 1.4
Rainy days 5 6 8 8 10 8 6 7 8 6 6 6

Average annual rainfall in Stillwater: 800mm (315 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Stillwater

Stillwater average daily sunshine chart
Average daily sunshine Stillwater
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.8 7.1 8.1 9.3 9.8 11.1 12 11 9 8.1 6.4 6.2

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Stillwater average minimum / maximum temperatures (Celsius) Stillwater average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Stillwater (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -4.5 -1.9 3.3 9.5 14.2 19.1 21.6 20.6 16.5 9.9 3.4 -2.5
Max °C 8.3 11.5 17.1 23.2 27.1 31.5 34.9 34.4 29.6 24 16.2 10.1
Min °F 23.9 28.6 37.9 49 57.5 66.4 70.8 69.1 61.6 49.7 38.1 27.6
Max °F 35.4 40.6 50.4 61.3 69.1 77.5 82.8 81.5 73.4 62.4 49.6 38.8

Sea temperature

The graph below shows the average sea temperature.

Stillwater average sea temperature chart (Celsius) Stillwater average sea temperature chart (Fahrenheit)
Average sea temperature around Stillwater in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 12.5 12.2 12.7 14 16 18.4 20.7 22.6 21.5 18.5 15.8 13.7
°F 54.4 53.9 54.9 57.2 60.8 65.1 69.3 72.6 70.7 65.3 60.4 56.7

Wind speed

The graph below shows the average wind speed.

Stillwater average winspeed by month (km/h) Stillwater average winspeed by month (mph)
Average wind speed in Stillwater (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 20 22 22 20 18 17 17 17 18 19 19
mph 12 13 14 14 12 11 11 10 11 11 12 12

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Stillwater relative humidity averages
Average relative humidity in Stillwater
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
68% 66% 62% 62% 68% 67% 61% 63% 68% 65% 68% 69%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Stillwater weather stats

Stillwater weather statistics
Hottest month: July 34.5°C 94.1°F
Driest month: January 30mm 1.2ins
Sunniest month: July 12hrs
Coldest month: January 8°C 46.4°F
Wettest month: May 132mm 5.2ins
Warmest sea: August 22.6°C 72.7°F
Map showing location of Stillwater (36.11561, -97.05837) Stillwater map pin © Google

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