Happy Valley (OR) monthly weather averages

Contents

Average daytime temperature

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

Happy Valley average temperature chart (Celsius) Happy Valley average temperature chart (Fahrenheit)
Average monthly temperatures in Happy Valley (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7 9.9 12.5 15.1 18.8 22.4 25.8 26.1 22.9 17.2 10.8 7.1
°F 44.6 49.8 54.4 59.2 65.8 72.4 78.4 79 73.3 62.9 51.4 44.8

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.

Happy Valley monthly rainfall chart (mm) Happy Valley monthly rainfall chart (inches)
Average monthly rainfall in Happy Valley (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 187 139 131 92 74 54 22 33 59 99 182 204
inches 7.4 5.5 5.1 3.6 2.9 2.1 0.8 1.3 2.3 3.9 7.2 8
Rainy days 17 15 16 14 11 8 4 5 8 11 18 18

Average annual rainfall in Happy Valley: 1198.834mm (472 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Happy Valley

Happy Valley average daily sunshine chart
Average daily sunshine Happy Valley
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.1 4.5 6.7 7.9 9.6 10.6 11.7 10.6 8.7 5.6 3 2.3

Day / night temperatures

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

Happy Valley average minimum / maximum temperatures (Celsius) Happy Valley average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Happy Valley (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.3 1.5 2.7 4 6.8 9.9 11.5 11.8 9.4 6 3.3 1
Max °C 7.2 10.1 12.7 15.4 19.1 22.8 26.1 26.5 23.3 17.5 11 7.3
Min °F 32.5 34.7 36.9 39.2 44.2 49.7 52.7 53.2 48.8 42.7 37.9 33.7
Max °F 38.7 42.4 45.9 49.5 55.2 61.3 65.8 66.4 61.3 53.1 44.8 39.4

Sea temperature

The graph below shows the average sea temperature.

Happy Valley average sea temperature chart (Celsius) Happy Valley average sea temperature chart (Fahrenheit)
Average sea temperature around Happy Valley in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.1 9 9.1 9.5 10.4 11.7 12.9 13.5 13.3 12 10.7 9.6
°F 48.3 48.1 48.4 49.1 50.7 53.1 55.3 56.3 55.9 53.6 51.2 49.2

Wind speed

The graph below shows the average wind speed.

Happy Valley average winspeed by month (km/h) Happy Valley average winspeed by month (mph)
Average wind speed in Happy Valley (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 15 15 14 13 13 13 13 12 12 11 14 15
mph 9 9 9 8 8 8 8 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.

Happy Valley relative humidity averages
Average relative humidity in Happy Valley
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
81% 79% 74% 71% 68% 65% 61% 63% 68% 77% 82% 83%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Happy Valley weather stats

Happy Valley weather statistics
Hottest month: August 26.1°C 79°F
Driest month: July 22mm 0.9ins
Sunniest month: July 11.7hrs
Coldest month: January 7°C 44.6°F
Wettest month: December 204mm 8ins
Warmest sea: August 13.5°C 56.3°F
Map showing location of Happy Valley (45.44679, -122.53037) Happy Valley map pin © Google

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