Kelso (WA) monthly weather averages

Contents

Average daytime temperature

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

Kelso average temperature chart (Celsius) Kelso average temperature chart (Fahrenheit)
Average monthly temperatures in Kelso (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.9 9.6 11.9 14.5 18 21.2 23.9 24.3 21.6 16.3 10.5 7.1
°F 44.5 49.3 53.4 58.1 64.3 70.1 75 75.7 70.8 61.3 50.8 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.

Kelso monthly rainfall chart (mm) Kelso monthly rainfall chart (inches)
Average monthly rainfall in Kelso (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 188 137 127 94 64 55 24 35 56 109 185 202
inches 7.4 5.4 5 3.7 2.5 2.2 0.9 1.4 2.2 4.3 7.3 8
Rainy days 19 17 18 15 12 9 5 6 9 13 19 20

Average annual rainfall in Kelso: 1199.366mm (472.2 inches)

Average daily sunshine

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

Kelso average daily sunshine chart
Average daily sunshine Kelso
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2.9 4.4 6.3 7.5 9 9.8 10.9 9.8 8.2 5.2 2.9 2.2

Day / night temperatures

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

Kelso average minimum / maximum temperatures (Celsius) Kelso average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Kelso (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.1 1.2 2.1 3.5 6.2 9 10.6 10.6 8.3 5.1 2.8 0.8
Max °C 7.1 9.8 12.2 14.8 18.3 21.5 24.2 24.6 21.9 16.6 10.7 7.3
Min °F 32.2 34.2 35.7 38.2 43.1 48.1 51.1 51.1 46.9 41.1 37 33.4
Max °F 38.5 41.9 44.8 48.4 54 59.4 63.3 63.7 59.2 51.4 44.1 39.2

Sea temperature

The graph below shows the average sea temperature.

Kelso average sea temperature chart (Celsius) Kelso average sea temperature chart (Fahrenheit)
Average sea temperature around Kelso in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.6 8.5 8.7 9.2 10.3 11.7 12.9 13.4 13 11.6 10.2 9.1
°F 47.5 47.3 47.7 48.6 50.6 53 55.2 56.2 55.5 53 50.4 48.4

Wind speed

The graph below shows the average wind speed.

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

Kelso relative humidity averages
Average relative humidity in Kelso
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
83% 80% 77% 74% 72% 70% 68% 70% 74% 81% 84% 85%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Kelso weather stats

Kelso weather statistics
Hottest month: August 24.3°C 75.7°F
Driest month: July 24mm 0.9ins
Sunniest month: July 10.9hrs
Coldest month: January 6.9°C 44.4°F
Wettest month: December 202mm 8ins
Warmest sea: August 13.4°C 56.1°F
Map showing location of Kelso (46.14678, -122.90844) Kelso map pin © Google

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