Mild
Average highs are around 22°C, so days are mild rather than hot.
September verdict
Lassen Volcanic National Park, United States in September
Weather score57Good
Good for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 10h per day, so bright days are a strong part of the month. Rainfall averages 27mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
22°C
Rain
27mm
Sun
10h
Weather score
57
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 27mm, which is relatively low for holiday planning.
Bright
Sunshine averages 10h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Lassen Volcanic National Park, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September22°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September27mm average rain
September is one of Lassen Volcanic National Park's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsApril to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September10 hours average sun
September is brighter than Lassen Volcanic National Park's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
September57 weather score
September scores above Lassen Volcanic National Park's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
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