Chinook (MT) monthly weather averages

Contents

Average daytime temperature

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

Chinook average temperature chart (Celsius) Chinook average temperature chart (Fahrenheit)
Average monthly temperatures in Chinook (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -4.9 -0.3 5.7 13.9 19.9 25.5 29.1 28.4 21.1 14.9 4.4 -3.2
°F 23.3 31.4 42.2 57 67.8 77.8 84.3 83.2 70.1 58.8 39.9 26.3

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.

Chinook monthly rainfall chart (mm) Chinook monthly rainfall chart (inches)
Average monthly rainfall in Chinook (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 15 9 13 28 51 57 40 32 34 16 12 13
inches 0.6 0.4 0.5 1.1 2 2.2 1.6 1.3 1.3 0.6 0.5 0.5
Rainy days 5 4 4 5 9 8 6 6 5 3 4 5

Average annual rainfall in Chinook: 258.733mm (101.9 inches)

Average daily sunshine

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

Chinook average daily sunshine chart
Average daily sunshine Chinook
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.8 6.3 8.1 9.6 11.2 12.4 13.6 12.1 9.3 7.3 5 4.3

Day / night temperatures

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

Chinook average minimum / maximum temperatures (Celsius) Chinook average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Chinook (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -17.5 -13.6 -8 -1.7 4.4 10 11.9 10.8 4.7 -0.7 -8.5 -15.8
Max °C -4.6 0 6 14.3 20.3 25.9 29.5 28.9 21.6 15.3 4.7 -2.9
Min °F 0.6 7.5 17.6 29 39.8 49.9 53.4 51.4 40.4 30.8 16.7 3.7
Max °F 12.2 19.8 30.2 43.3 54.1 64.2 69.3 67.6 55.6 45.1 28.6 15.3

Sea temperature

The graph below shows the average sea temperature.

Chinook average sea temperature chart (Celsius) Chinook average sea temperature chart (Fahrenheit)
Average sea temperature around Chinook in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.4 6.3 6.4 7 8 9.7 11.8 13.8 13 10.6 8.4 6.9
°F 43.5 43.3 43.6 44.5 46.4 49.5 53.3 56.8 55.4 51.1 47 44.5

Wind speed

The graph below shows the average wind speed.

Chinook average winspeed by month (km/h) Chinook average winspeed by month (mph)
Average wind speed in Chinook (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 21 20 19 20 19 18 17 17 18 19 19 21
mph 13 12 12 13 12 11 10 10 11 12 12 13

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.

Chinook relative humidity averages
Average relative humidity in Chinook
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
69% 69% 68% 58% 55% 55% 50% 50% 56% 57% 66% 70%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Chinook weather stats

Chinook weather statistics
Hottest month: July 29.1°C 84.4°F
Driest month: February 9mm 0.4ins
Sunniest month: July 13.6hrs
Coldest month: January -4.9°C 23.2°F
Wettest month: June 57mm 2.2ins
Warmest sea: August 13.8°C 56.8°F
Map showing location of Chinook (48.59, -109.23128) Chinook map pin © Google

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