Fort Irwin (CA) monthly weather averages

Contents

Average daytime temperature

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

Fort Irwin average temperature chart (Celsius) Fort Irwin average temperature chart (Fahrenheit)
Average monthly temperatures in Fort Irwin (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 13.7 16.6 19.2 23.4 28.9 35.1 39.2 38 33.2 26.9 18.7 13.6
°F 56.6 61.9 66.5 74.1 84 95.2 102.6 100.4 91.8 80.3 65.7 56.4

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.

Fort Irwin monthly rainfall chart (mm) Fort Irwin monthly rainfall chart (inches)
Average monthly rainfall in Fort Irwin (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 18 12 11 9 5 3 10 14 8 5 11 15
inches 0.7 0.5 0.4 0.4 0.2 0.1 0.4 0.5 0.3 0.2 0.4 0.6
Rainy days 4 4 4 3 1 1 1 2 2 2 3 3

Average annual rainfall in Fort Irwin: 40.3mm (15.9 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Fort Irwin

Fort Irwin average daily sunshine chart
Average daily sunshine Fort Irwin
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.8 8.7 9.7 11.2 11.8 12.9 13 12.4 11.3 9.9 8.2 7.7

Day / night temperatures

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

Fort Irwin average minimum / maximum temperatures (Celsius) Fort Irwin average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Fort Irwin (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -0.2 2.3 4.9 8.1 13.1 18.1 21.8 20.8 16.4 10.6 4.2 -0.3
Max °C 14 17 19.5 23.8 29.3 35.6 39.7 38.4 33.7 27.3 19.1 13.9
Min °F 31.6 36.1 40.8 46.5 55.6 64.5 71.2 69.4 61.4 51 39.5 31.5
Max °F 44.4 49.3 54 60.6 70.2 80.2 87.3 85.3 77 66 52.9 44.2

Sea temperature

The graph below shows the average sea temperature.

Fort Irwin average sea temperature chart (Celsius) Fort Irwin average sea temperature chart (Fahrenheit)
Average sea temperature around Fort Irwin in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 13.6 13.5 13.5 13.6 14.4 15.7 17.4 18.3 18.1 17.2 15.8 14.3
°F 56.5 56.3 56.3 56.5 57.9 60.2 63.2 64.9 64.7 63 60.5 57.8

Wind speed

The graph below shows the average wind speed.

Fort Irwin average winspeed by month (km/h) Fort Irwin average winspeed by month (mph)
Average wind speed in Fort Irwin (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 13 14 16 17 16 16 16 14 14 13 13 12
mph 8 9 10 10 10 10 10 9 9 8 8 8

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.

Fort Irwin relative humidity averages
Average relative humidity in Fort Irwin
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
56% 53% 48% 42% 39% 37% 39% 43% 43% 46% 52% 57%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Fort Irwin weather stats

Fort Irwin weather statistics
Hottest month: July 39.2°C 102.6°F
Driest month: June 3mm 0.1ins
Sunniest month: August 12.4hrs
Coldest month: December 13.6°C 56.5°F
Wettest month: January 18mm 0.7ins
Warmest sea: August 18.3°C 64.9°F
Map showing location of Fort Irwin (35.26275, -116.68475) Fort Irwin map pin © Google

Top United States locations