Palo Alto (CA) monthly weather averages

Contents

Average daytime temperature

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

Palo Alto average temperature chart (Celsius) Palo Alto average temperature chart (Fahrenheit)
Average monthly temperatures in Palo Alto (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 13.9 16.1 17.2 19.2 21.5 24.1 25.5 25.6 25.5 22.7 17.7 13.9
°F 57 60.9 63 66.6 70.7 75.5 78 78.2 77.9 72.9 63.9 57

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.

Palo Alto monthly rainfall chart (mm) Palo Alto monthly rainfall chart (inches)
Average monthly rainfall in Palo Alto (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 87 66 65 30 7 2 1 1 4 22 56 64
inches 3.4 2.6 2.5 1.2 0.3 0.1 0 0 0.2 0.9 2.2 2.5
Rainy days 9 9 10 6 2 1 1 1 1 4 8 9

Average annual rainfall in Palo Alto: 320.534mm (126.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Palo Alto

Palo Alto average daily sunshine chart
Average daily sunshine Palo Alto
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.2 7.9 9.4 11.2 11.7 11.9 11.7 10.8 10.3 9 6.5 5.5

Day / night temperatures

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

Palo Alto average minimum / maximum temperatures (Celsius) Palo Alto average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Palo Alto (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 4.5 6.3 7.2 7.9 9.8 11.8 12.8 13.1 12.6 10.2 7.3 4.7
Max °C 14.1 16.3 17.5 19.5 21.8 24.5 25.9 26 25.8 23.1 18 14.1
Min °F 40.1 43.3 44.9 46.2 49.6 53.2 55 55.5 54.7 50.3 45.1 40.5
Max °F 48.7 52.3 54.1 56.7 60.4 64.6 66.7 67.1 66.6 61.9 54.7 48.9

Sea temperature

The graph below shows the average sea temperature.

Palo Alto average sea temperature chart (Celsius) Palo Alto average sea temperature chart (Fahrenheit)
Average sea temperature around Palo Alto in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 12.4 12.2 12.2 11.8 11.8 12.2 13.1 14 14.4 14.2 13.6 12.7
°F 54.2 54 53.9 53.3 53.2 53.9 55.5 57.2 57.9 57.6 56.4 54.9

Wind speed

The graph below shows the average wind speed.

Palo Alto average winspeed by month (km/h) Palo Alto average winspeed by month (mph)
Average wind speed in Palo Alto (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 12 14 17 18 20 20 19 18 16 14 13 12
mph 8 9 10 11 12 12 12 11 10 9 8 8

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.

Palo Alto relative humidity averages
Average relative humidity in Palo Alto
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
79% 77% 73% 69% 68% 67% 67% 69% 68% 70% 76% 80%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Palo Alto weather stats

Palo Alto weather statistics
Hottest month: August 25.6°C 78.1°F
Driest month: July 1mm 0ins
Sunniest month: April 11.2hrs
Coldest month: January 13.9°C 57°F
Wettest month: January 87mm 3.4ins
Warmest sea: September 14.4°C 57.9°F
Map showing location of Palo Alto (37.44188, -122.14302) Palo Alto map pin © Google

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