Hot
Average highs reach 39°C, so days can feel very hot.
Weather Guide
Barstow, California, United States Average Monthly Weather
Weather score69Good annual avg
Best months: September, June, May
Across the year, average daytime temperatures are around 27°C, sunshine averages 9.3h per day, and rainfall totals about 94mm.
Annual weather
Annual averages
Temp
27°C
Rain
94mm
Annual total
Sun
9.3h
Weather score
69
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 8mm, which is relatively low for holiday planning.
Bright
Sunshine averages 11h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Barstow, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August39°C average high
August is one of Barstow's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August8mm average rain
August is close to Barstow's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
August11 hours average sun
August is brighter than Barstow's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
August80 weather score
August scores above Barstow's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsMay to June and August to October
These months have the strongest weather score in the monthly averages.
