Butte (MT) monthly weather averages

Contents

Average daytime temperature

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

Butte average temperature chart (Celsius) Butte average temperature chart (Fahrenheit)
Average monthly temperatures in Butte (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -1.8 1.1 4.3 9.8 15.2 20.5 25.9 25 18.4 12.6 3.9 -1.3
°F 28.8 34.1 39.7 49.7 59.3 68.8 78.6 76.9 65.2 54.7 38.9 29.7

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.

Butte monthly rainfall chart (mm) Butte monthly rainfall chart (inches)
Average monthly rainfall in Butte (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 23 15 23 28 52 59 35 35 35 22 18 19
inches 0.9 0.6 0.9 1.1 2 2.3 1.4 1.4 1.4 0.9 0.7 0.7
Rainy days 11 9 12 10 12 11 8 9 8 7 10 11

Average annual rainfall in Butte: 297.7mm (117.2 inches)

Average daily sunshine

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

Butte average daily sunshine chart
Average daily sunshine Butte
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.3 5.9 7.8 8.7 9.5 10.7 12.6 11 9.1 7.2 4.3 3.7

Day / night temperatures

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

Butte average minimum / maximum temperatures (Celsius) Butte average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Butte (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -14.2 -11.5 -8.2 -3.6 0.9 5 7.5 6.6 2 -2.6 -8.4 -13.6
Max °C -1.5 1.5 4.6 10.2 15.5 20.9 26.4 25.4 18.9 13 4.2 -1
Min °F 6.5 11.4 17.2 25.6 33.6 40.9 45.4 43.9 35.5 27.3 17 7.5
Max °F 18 23 28.8 37.9 46.8 55.2 62.4 60.8 50.7 41.4 28.2 18.9

Sea temperature

The graph below shows the average sea temperature.

Butte average sea temperature chart (Celsius) Butte average sea temperature chart (Fahrenheit)
Average sea temperature around Butte in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.7 7.6 7.8 8.2 9.2 10.8 12.8 14.3 13.7 11.7 9.7 8.3
°F 45.9 45.7 46 46.8 48.5 51.5 55 57.8 56.7 53 49.4 46.9

Wind speed

The graph below shows the average wind speed.

Butte average winspeed by month (km/h) Butte average winspeed by month (mph)
Average wind speed in Butte (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 14 14 16 17 16 15 14 14 14 14 14 14
mph 9 9 10 11 10 9 9 9 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.

Butte relative humidity averages
Average relative humidity in Butte
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
70% 67% 62% 55% 55% 54% 48% 49% 56% 60% 69% 72%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Butte weather stats

Butte weather statistics
Hottest month: July 25.9°C 78.6°F
Driest month: February 15mm 0.6ins
Sunniest month: July 12.6hrs
Coldest month: January -1.8°C 28.8°F
Wettest month: June 59mm 2.3ins
Warmest sea: August 14.3°C 57.7°F
Map showing location of Butte (46.00382, -112.53474) Butte map pin © Google

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