Norco (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Norco.
Climate overview of Norco
Norco, California, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 34°C (93°F) in August, while winters cool to 19°C (66°F) in December.
Rainfall is extremely rare, with only 202 mm (8 in) falling across the entire year. The most sunshine falls in July, with an average of 12.3 hours of daily sunshine.
Norco Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Norco - and find the best time to visit.
Monthly Temperature in Norco
Depending on the time of the year, temperatures range from very warm to pleasant in Norco. Average maximum daytime temperatures range from a very warm 34°C (93°F) in August, the warmest time of the year, to a pleasant 19°C (66°F) during cooler months like December.
At night, you can expect temperatures ranging from 17°C (63°F) in August to around 6°C (43°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Norco
Norco has a dry climate with very low precipitation, averaging 202 mm (8 in) of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives moderate rainfall, averaging 62 mm (2.4 in) of precipitation, recorded across 7 rainy days. In contrast, the driest month June brings less rainfall, with 0 mm (0 in) over 0 rainy days. For more details, please visit our Norco Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Norco
Seasonal changes in sunshine hours are quite dramatic in Norco. 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
Daily hours of sunshine
Best Time to Visit Norco
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, March, April, May, October and November
- Warmest weather: July, August and September
- Most sunshine: July and August
- Seasonal pattern: Very little rainfall for most of the year, with very warm summers and pleasant winters
Frequently asked questions about the climate in Norco
What is the best time to visit Norco?
January, February, March, April, May, October and November typically offer the most optimal weather in Norco. In contrast, August tends to have less optimal conditions. Norco has very little rainfall for most of the year, with very warm summers and pleasant winters.
What temperatures can I expect in Norco?
Daytime highs range from 19°C (66°F) in December to 34°C (93°F) in August. Nighttime lows range from 6°C (43°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Norco get?
Annual rainfall is around 202 mm (8 in). December is the wettest month with 62 mm (2.4 in), while June is the driest with 0 mm (0 in).
How sunny is Norco?
Norco receives around 3,279 hours of sunshine per year. July is the sunniest month with 369 hours, while January is the cloudiest with just 198 hours. Overall, Norco enjoys abundant sunshine.
Norco 3-Day Forecast
Norco (CA) 3-Day Forecast
Norco on the map
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