White Sulphur Springs (MT) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at White Sulphur Springs

White Sulphur Springs average temperature chart (Celsius) White Sulphur Springs average temperature chart (Fahrenheit)
Average monthly temperatures in White Sulphur Springs (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -1.7 1.8 4.6 10.3 15.8 21.5 26.4 25.9 18.7 12.9 4.4 -0.5
°F 28.9 35.2 40.2 50.5 60.4 70.7 79.5 78.6 65.6 55.3 39.9 31.1

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.

White Sulphur Springs monthly rainfall chart (mm) White Sulphur Springs monthly rainfall chart (inches)
Average monthly rainfall in White Sulphur Springs (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 22 15 25 30 58 63 38 37 32 24 20 19
inches 0.9 0.6 1 1.2 2.3 2.5 1.5 1.5 1.3 1 0.8 0.7
Rainy days 9 8 10 10 12 11 8 8 8 6 7 9

Average annual rainfall in White Sulphur Springs: 317.866mm (125.1 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in White Sulphur Springs

White Sulphur Springs average daily sunshine chart
Average daily sunshine White Sulphur Springs
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.8 6.2 8.3 8.9 9.8 11 12.6 11.2 9.1 7.3 4.7 4.1

Day / night temperatures

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

White Sulphur Springs average minimum / maximum temperatures (Celsius) White Sulphur Springs average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in White Sulphur Springs (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -12.8 -9.9 -7.5 -3 1.7 5.9 8.6 7.7 2.6 -1.7 -7.3 -11.6
Max °C -1.5 2.1 4.9 10.6 16.2 21.9 26.9 26.4 19.1 13.3 4.7 -0.3
Min °F 9.1 14.3 18.6 26.6 35 42.6 47.4 45.8 36.6 28.9 19 11.2
Max °F 19.2 25 29.7 38.8 48 57 63.9 62.6 51.4 42.4 29.7 21.4

Sea temperature

The graph below shows the average sea temperature.

White Sulphur Springs average sea temperature chart (Celsius) White Sulphur Springs average sea temperature chart (Fahrenheit)
Average sea temperature around White Sulphur Springs in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.5 7.4 7.6 8.1 9.1 10.8 12.9 14.6 13.9 11.7 9.6 8.1
°F 45.6 45.3 45.7 46.6 48.4 51.4 55.1 58.3 57 53.1 49.2 46.6

Wind speed

The graph below shows the average wind speed.

White Sulphur Springs average winspeed by month (km/h) White Sulphur Springs average winspeed by month (mph)
Average wind speed in White Sulphur Springs (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 18 18 19 17 17 16 15 16 17 18 19
mph 12 11 11 12 11 10 10 9 10 11 11 12

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.

White Sulphur Springs relative humidity averages
Average relative humidity in White Sulphur Springs
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
64% 62% 59% 53% 54% 52% 46% 47% 54% 55% 62% 65%