Downey (CA) Weather and Climate: A Comprehensive Guide
The weather in Downey sees moderate temperature fluctuations over the course of a year.
Temperatures can be warm at the high end
to roughly pleasant at the low end.
It maintains fairly dry conditions year-round.
Let’s explore the climate details in depth to provide you with a complete overview.
Average maximum day and minimum night temperature
In Downey, seasonal changes bring about a moderate variation in temperatures. On average, daytime temperatures range from a comfortable 30°C in August to a pleasant 20°C in December.
Nighttime temperatures can drop, with average lows reaching 8°C in December. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Downey typically sees modest rainfall throughout the year, with an average annual precipitation of 254 mm. The seasons in Downey, bring significant changes in precipitation. The wettest month, December, receives moderate rainfall, with an average of 71 mm of precipitation. This rainfall is distributed across 8 rainy days. In contrast, the driest month, June, experiences much less rainfall, totaling 0.1 mm over 0 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Downey Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
In Downey, summer days are longer and more sunny, with daily sunshine hours peaking at 12.1 hours in July. As the darker season arrives, the brightness of the sun becomes less. November sees a soft sun for only 7.2 hours per average day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average water temperature
The mean water temperature over the year ranges from 14°C in January to 18°C in August.
Water temperature over the year
Average humidity
The relative humidity is high throughout the year in Downey.
The city experiences its highest humidity in May, reaching 73%. In November, the humidity drops to its lowest level at 50%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The average wind speed over the year ranges from 3 m/s to 4 m/s. It is lower in January, February, September, October, November and December and higher in March, April, May, June, July and August.
The mean monthly wind speed over the year (meters per second)
partly cloudy and no rain broken clouds and no rain almost clear and no rainForecast for Downey (CA)
2 m/s
3 m/s
3 m/s
The best time of year to visit Downey in the United States of America
During the months of January, February, March, April, May and November 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:
August has an average maximum temperature of 30°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 20°C.
December tops the wettest month list with 71 mm of rainfall.
June is the driest month with 0 mm of precipitation.
July is the sunniest month with an average of 364 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.
