Thermopolis (WY) monthly weather averages

Contents

Average daytime temperature

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

Thermopolis average temperature chart (Celsius) Thermopolis average temperature chart (Fahrenheit)
Average monthly temperatures in Thermopolis (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -1.7 2.9 8.7 14.4 19.9 25.8 30.4 29 22.4 15.6 5.9 -0.7
°F 29 37.2 47.6 58 67.8 78.5 86.6 84.2 72.3 60.1 42.6 30.8

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.

Thermopolis monthly rainfall chart (mm) Thermopolis monthly rainfall chart (inches)
Average monthly rainfall in Thermopolis (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 6 6 9 22 41 33 17 13 20 14 9 6
inches 0.2 0.2 0.4 0.9 1.6 1.3 0.7 0.5 0.8 0.6 0.4 0.2
Rainy days 7 7 9 10 10 8 7 6 6 6 6 7

Average annual rainfall in Thermopolis: 131.533mm (51.8 inches)

Average daily sunshine

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

Thermopolis average daily sunshine chart
Average daily sunshine Thermopolis
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.3 7.3 8.6 9.3 9.9 11.4 12 11.3 9.6 7.8 5.9 5.8

Day / night temperatures

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

Thermopolis average minimum / maximum temperatures (Celsius) Thermopolis average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Thermopolis (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -15.7 -11.7 -6.3 -1.2 4.1 9 12.2 10.8 5 -0.8 -8.1 -14.3
Max °C -1.4 3.3 9.1 14.8 20.3 26.3 30.8 29.5 22.8 16 6.3 -0.4
Min °F 3.8 11 20.8 29.8 39.4 48.1 54 51.4 41 30.6 17.5 6.4
Max °F 16.7 24.4 34.5 44.2 54 63.7 70.7 68.2 57 45.7 30.4 18.9

Sea temperature

The graph below shows the average sea temperature.

Thermopolis average sea temperature chart (Celsius) Thermopolis average sea temperature chart (Fahrenheit)
Average sea temperature around Thermopolis in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9 8.8 9 9.6 10.7 12.5 14.5 16.3 15.6 13.4 11.2 9.7
°F 48.2 47.9 48.3 49.3 51.3 54.4 58.2 61.3 60.1 56.1 52.2 49.5

Wind speed

The graph below shows the average wind speed.

Thermopolis average winspeed by month (km/h) Thermopolis average winspeed by month (mph)
Average wind speed in Thermopolis (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 15 14 15 16 16 14 14 13 14 14 14 15
mph 9 9 9 10 10 9 9 8 9 9 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.

Thermopolis relative humidity averages
Average relative humidity in Thermopolis
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
64% 63% 58% 54% 54% 50% 43% 42% 49% 54% 62% 65%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Thermopolis weather stats

Thermopolis weather statistics
Hottest month: July 30.4°C 86.7°F
Driest month: February 6mm 0.2ins
Sunniest month: August 11.3hrs
Coldest month: January -1.7°C 28.9°F
Wettest month: May 41mm 1.6ins
Warmest sea: August 16.3°C 61.3°F
Map showing location of Thermopolis (43.64607, -108.21204) Thermopolis map pin © Google

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