Mount Shasta (CA) monthly weather averages

Contents

Average daytime temperature

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

Mount Shasta average temperature chart (Celsius) Mount Shasta average temperature chart (Fahrenheit)
Average monthly temperatures in Mount Shasta (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 5.8 8.4 10 13.8 19 23.8 28.5 27.9 23.7 17.6 9.2 6
°F 42.5 47.1 50 56.8 66.2 74.8 83.3 82.3 74.7 63.8 48.5 42.8

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.

Mount Shasta monthly rainfall chart (mm) Mount Shasta monthly rainfall chart (inches)
Average monthly rainfall in Mount Shasta (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 184 155 141 74 38 23 7 13 25 69 161 167
inches 7.3 6.1 5.5 2.9 1.5 0.9 0.3 0.5 1 2.7 6.4 6.6
Rainy days 12 11 12 9 7 5 3 4 5 7 12 13

Average annual rainfall in Mount Shasta: 975.8mm (384.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Mount Shasta

Mount Shasta average daily sunshine chart
Average daily sunshine Mount Shasta
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5 6.3 8.1 10 11.8 13 13.9 12.7 11.3 8.5 5 4.4

Day / night temperatures

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

Mount Shasta average minimum / maximum temperatures (Celsius) Mount Shasta average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Mount Shasta (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -5.1 -3.3 -2.3 -0.6 3 6.6 8.8 8.2 4.8 0.9 -2.5 -4.5
Max °C 6.1 8.7 10.3 14.2 19.4 24.2 29 28.4 24.2 18.1 9.5 6.3
Min °F 22.8 26.2 27.9 31 37.4 43.9 47.8 46.8 40.6 33.7 27.6 24
Max °F 32.9 36.9 39.2 44.2 52.2 59.7 66 64.9 58.1 49.1 38.3 33.6

Sea temperature

The graph below shows the average sea temperature.

Mount Shasta average sea temperature chart (Celsius) Mount Shasta average sea temperature chart (Fahrenheit)
Average sea temperature around Mount Shasta in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 10.8 10.7 10.7 10.7 11.2 12 13.1 13.8 13.9 13.1 12.2 11.2
°F 51.4 51.2 51.2 51.3 52.1 53.7 55.5 56.8 56.9 55.6 54 52.2

Wind speed

The graph below shows the average wind speed.

Mount Shasta average winspeed by month (km/h) Mount Shasta average winspeed by month (mph)
Average wind speed in Mount Shasta (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 9 11 13 13 13 13 13 12 11 10 10 10
mph 6 7 8 8 8 8 8 7 7 6 6 6

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.

Mount Shasta relative humidity averages
Average relative humidity in Mount Shasta
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
80% 73% 67% 61% 58% 55% 50% 52% 57% 66% 78% 82%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Mount Shasta weather stats

Mount Shasta weather statistics
Hottest month: July 28.5°C 83.3°F
Driest month: July 7mm 0.3ins
Sunniest month: July 13.9hrs
Coldest month: January 5.8°C 42.4°F
Wettest month: January 184mm 7.2ins
Warmest sea: September 13.9°C 57°F
Map showing location of Mount Shasta (41.30987, -122.31057) Mount Shasta map pin © Google

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