Bellingham (WA) monthly weather averages

Contents

Average daytime temperature

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

Bellingham average temperature chart (Celsius) Bellingham average temperature chart (Fahrenheit)
Average monthly temperatures in Bellingham (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 5.8 8.5 10.2 12.7 16.2 18.9 21.3 21.6 18.9 14.1 8.9 6.1
°F 42.4 47.3 50.3 54.9 61.1 66.1 70.4 70.9 66 57.5 48 42.9

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.

Bellingham monthly rainfall chart (mm) Bellingham monthly rainfall chart (inches)
Average monthly rainfall in Bellingham (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 141 110 99 86 68 58 40 44 67 110 150 151
inches 5.6 4.3 3.9 3.4 2.7 2.3 1.6 1.7 2.6 4.3 5.9 5.9
Rainy days 18 16 17 15 13 11 7 8 10 15 19 20

Average annual rainfall in Bellingham: 1048.133mm (412.7 inches)

Average daily sunshine

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

Bellingham average daily sunshine chart
Average daily sunshine Bellingham
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2.2 3.5 4.6 6.1 7.4 8.1 9.9 9 6.8 4.5 2.5 2.1

Day / night temperatures

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

Bellingham average minimum / maximum temperatures (Celsius) Bellingham average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Bellingham (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -0.4 1.3 2.1 3.9 6.6 9.5 11 11.2 8.9 5.7 2.6 0.4
Max °C 6 8.7 10.4 13 16.4 19.2 21.6 21.9 19.2 14.4 9.1 6.2
Min °F 31.4 34.3 35.7 38.9 43.9 49 51.8 52.1 47.9 42.2 36.6 32.7
Max °F 37 41 43.2 47.1 52.7 57.7 61.3 61.7 57.2 50 42.4 37.9

Sea temperature

The graph below shows the average sea temperature.

Bellingham average sea temperature chart (Celsius) Bellingham average sea temperature chart (Fahrenheit)
Average sea temperature around Bellingham in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.7 7.6 8.1 9.2 11 12.6 13.5 13.7 12.8 10.8 9.4 8.3
°F 45.9 45.7 46.6 48.6 51.8 54.6 56.4 56.6 55 51.5 48.8 46.9

Wind speed

The graph below shows the average wind speed.

Bellingham average winspeed by month (km/h) Bellingham average winspeed by month (mph)
Average wind speed in Bellingham (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 14 14 13 13 12 12 12 11 10 11 14 14
mph 9 9 8 8 7 7 7 7 7 7 9 9

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.

Bellingham relative humidity averages
Average relative humidity in Bellingham
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
81% 79% 76% 73% 72% 72% 71% 73% 77% 82% 82% 83%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Bellingham weather stats

Bellingham weather statistics
Hottest month: August 21.6°C 70.9°F
Driest month: July 40mm 1.6ins
Sunniest month: July 9.9hrs
Coldest month: January 5.8°C 42.4°F
Wettest month: December 151mm 5.9ins
Warmest sea: August 13.7°C 56.7°F
Map showing location of Bellingham (48.75955, -122.48822) Bellingham map pin © Google

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