Perris (CA) monthly weather averages

Average daytime temperature

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

Perris average temperature chart (Celsius) Perris average temperature chart (Fahrenheit)
Average monthly temperatures in Perris (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 17.1 18.2 18.2 20.8 23.5 27 31.7 31.9 29 25.3 20.5 17.2
°F 62.7 64.8 64.7 69.4 74.2 80.6 89 89.5 84.3 77.6 68.9 63

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.

Perris monthly rainfall chart (mm) Perris monthly rainfall chart (inches)
Average monthly rainfall in Perris (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 71 58 54 32 9 2 3 4 8 8 37 45
inches 2.8 2.3 2.1 1.2 0.3 0.1 0.1 0.2 0.3 0.3 1.5 1.8
Rainy days 5 5 6 3 1 1 1 1 2 2 4 4

Average annual rainfall in Perris: 245.5mm (96.7 inches)

Average daily sunshine

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

Perris average daily sunshine chart
Average daily sunshine Perris
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8.1 8.7 9.2 10.5 9.9 10.5 11.9 11.5 10.1 9.1 8.2 8

Day / night temperatures

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

Perris average minimum / maximum temperatures (Celsius) Perris average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Perris (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 3.6 4.7 5.3 6.9 10 12.5 15.8 16.3 13.8 10.5 6.4 3.5
Max °C 17.4 18.6 18.5 21.1 23.8 27.4 32.1 32.3 29.4 25.7 20.9 17.6
Min °F 38.5 40.4 41.5 44.4 50 54.4 60.4 61.3 56.8 50.9 43.4 38.2
Max °F 50.9 52.9 53.4 57.2 62.4 67.8 75 75.7 70.9 64.6 56.5 50.9

Sea temperature

The graph below shows the average sea temperature.

Perris average sea temperature chart (Celsius) Perris average sea temperature chart (Fahrenheit)
Average sea temperature around Perris in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14.9 14.9 15.1 15.6 16.6 18 19.8 20.5 20.4 19.3 17.5 15.7
°F 58.8 58.8 59.3 60 61.8 64.4 67.6 69 68.8 66.7 63.5 60.2

Wind speed

The graph below shows the average wind speed.

Perris average winspeed by month (km/h) Perris average winspeed by month (mph)
Average wind speed in Perris (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 12 13 14 15 15 14 14 14 13 12 12 11
mph 7 8 9 9 9 9 9 9 8 7 7 7

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.

Perris relative humidity averages
Average relative humidity in Perris
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
61% 62% 61% 58% 59% 60% 62% 63% 63% 61% 61% 62%