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West Covina (CA) Weather and Climate: A Comprehensive Guide

The temperature in West Covina can vary quite a bit throughout the year. Temperatures can be very hot during the warmest months, and pleasant during the cooler months. It maintains relatively low levels of precipitation throughout the seasons. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

Visitors to West Covina can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a very hot 35°C in August, the warmest time of the year, to a pleasant 20°C during cooler months like December.

At night, temperatures typically drop to an average of around 8°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

West Covina typically sees modest rainfall throughout the year, with an average annual precipitation of 310 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, December receives moderate rainfall, averaging 81 mm of precipitation, recorded across 8 rainy days. In contrast, the drier season, June brings less rainfall, with 0.2 mm over 0 rainy days. For more details, please visit our West Covina Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in West Covina. While July receives considerable daily sunshine with up to 12.3 hours, January marks the darkest time of the year, where sunshine is scarce with only 6.6 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Corona, the United States of America (40 KM, 25 Miles).

Daily hours of sunshine

Data from: Corona, the United States of America (40 KM, 25 Miles).

Forecast for West Covina (CA)

Fri   Dec 27
19°C | 9°C
E 2 m/s
partly cloudy and no rain

partly cloudy and no rain

Sat   Dec 28
20°C | 9°C
W 2 m/s
broken clouds and no rain

broken clouds and no rain

Sun   Dec 29
20°C | 9°C
SW 3 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit West Covina in the United States of America

During the months of January, February, March, April, November and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in West Covina?
    August has an average maximum temperature of 35°C and is the warmest month of the year.
  • Which is the coldest month in West Covina?
    The coldest month is December with an average maximum temperature of 20°C.
  • Which is the wettest month in West Covina?
    December tops the wettest month list with 81 mm of rainfall.
  • Which is the driest month in West Covina?
    August is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in West Covina?
    July is the sunniest month with an average of 369 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.