Boron (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Boron.
Climate overview of Boron
Boron, California, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 38°C (100°F) in July, while winters cool to 14°C (57°F) in December.
Rain/snowfall is extremely rare, with only 103 mm (4.1 in) falling across the entire year. The most sunshine falls in July, with an average of 11.3 hours of daily sunshine.
Boron Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Boron - and find the best time to visit.
Monthly Temperature in Boron
Depending on the time of the year, temperatures range from very hot to moderate in Boron. Average maximum daytime temperatures range from a very hot 38°C (100°F) in July, the warmest time of the year, to a moderate 14°C (57°F) during cooler months like December.
At night, you can expect temperatures ranging from 20°C (68°F) in July to around -1°C (30°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Boron
Boron has a dry climate with very low precipitation, averaging 103 mm (4.1 in) of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives moderate rainfall, averaging 30 mm (1.2 in) of precipitation, recorded across 5 rainy days. In contrast, the driest month June brings less rainfall, with 0.1 mm (0 in) over 0 rainy days. For more details, please visit our Boron 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 Boron
While the amount of sunshine in Boron varies throughout the year, all seasons offer their own charm. Enjoy up to 11.3 hours of daily sun in July, and experience slightly darker atmosphere in January, with about 7.0 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Boron
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: February, March, April, May, October and November
- Warmest weather: July and August
- Most sunshine: July and August
- Seasonal pattern: Very little rainfall year-round, with very hot summers and mild winters
- Coldest conditions: December, with freezing nights around -1°C (30°F).
Frequently asked questions about the climate in Boron
What is the best time to visit Boron?
February, March, April, May, October and November typically offer the most optimal weather in Boron. In contrast, June, July, August and September tend to have less optimal conditions. Boron has very little rainfall year-round, with very hot summers and mild winters.
What temperatures can I expect in Boron?
Daytime highs range from 14°C (57°F) in December to 38°C (100°F) in July. Nighttime lows range from -1°C (30°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Boron get?
Annual rainfall is around 103 mm (4.1 in). December is the wettest month with 30 mm (1.2 in), while June is the driest with 0.1 mm (0 in).
How sunny is Boron?
Boron receives around 3,229 hours of sunshine per year. July is the sunniest month with 340 hours, while January is the cloudiest with just 210 hours. Overall, Boron enjoys abundant sunshine.
Boron 3-Day Forecast
Boron on the map
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