Park climate1991–2020 climate normals1,700 m source elevationNASA POWER

Twelve month analysis of atmospheric averages based on a representative coordinate in California.

Lassen National Forest Monthly Climate Normals: Temperature, Precipitation, and Wind Patterns

Name: Lassen National Forest monthly climate normals
Creator: NASA POWER

Analyze the long term climate record for Lassen National Forest through monthly temperature averages, precipitation rates, relative humidity, wind speed, and daylight duration. These measurements provide a consistent baseline for understanding the annual atmospheric cycle between 1991 and 2020 at a fixed point of 1700 meters elevation. This data focuses on stationary historical trends rather than current weather fluctuations or seasonal forecasts.

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A colorful vector-style illustration showing a waterfall cascading down pink cliffs into a blue lake, surrounded by green pine trees and rocky terrain under a sunny sky.

Annual climate pattern

Long term monthly temperature ranges and average daily precipitation patterns for a representative coordinate

Lassen National Forest Annual Climate Normals, Average Monthly Temperatures, and Daily Precipitation Rhythms

Average minimum, mean, and maximum temperatures track a twelve month thermal progression across the protected landscape, moving from subzero winter lows to warm summer peaks. Daily precipitation rates shift alongside these monthly temperature variations based on historical climatology records spanning from 1991 to 2020 at a single sampled elevation.

Mean temperatureAverage minimum–maximum rangePrecipitation

Annual mean: 7.7 °C
Warmest month: July
Coolest month: December
Wettest month: December

Twelve-month climate

Compare twelve months of average temperature bounds, precipitation rates, and daylight hours across long-term norms.

Lassen National Forest Monthly Climate Records and Weather by Month Analysis

Evaluation of average minimum and maximum temperature bounds alongside daily precipitation rates reveals distinct seasonal shifts across the calendar year. Tracking relative humidity, wind speed, and calculated daylight hours at a representative coordinate provides a complete climatological profile for Lassen National Forest.

	Mean temperature	Precipitation	Humidity	Wind speed	Daylight
January	-1.1 °C-12.1° to 9°	5.2 mm/day	86.1%	2.6 m/s	9.5 hours
February	-0.3 °C-10.7° to 10.8°	5.4 mm/day	84.2%	2.6 m/s	10.4 hours
March	1.9 °C-9.5° to 15.1°	4.6 mm/day	81.2%	2.6 m/s	11.7 hours
April	4.5 °C-6.5° to 19.1°	2.7 mm/day	75.5%	2.5 m/s	13.1 hours
May	9.2 °C-3° to 24.1°	1.9 mm/day	69%	2.3 m/s	14.3 hours
June	14.3 °C0.2° to 30.1°	0.9 mm/day	55%	2.2 m/s	14.8 hours
July	19.8 °C5.2° to 34.2°	0.2 mm/day	37.6%	2.1 m/s	14.6 hours
August	19.2 °C5.3° to 33.9°	0.2 mm/day	32.3%	2.1 m/s	13.6 hours
September	15.4 °C1.3° to 31.1°	0.4 mm/day	37.6%	2.2 m/s	12.2 hours
October	8.9 °C-3.5° to 25.5°	1.7 mm/day	52.6%	2.4 m/s	10.9 hours
November	2.4 °C-8.2° to 17.8°	3.3 mm/day	72.7%	2.5 m/s	9.7 hours
December	-1.4 °C-11.6° to 9.3°	5.7 mm/day	83.8%	2.7 m/s	9.2 hours

Compare two months

See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.

First month

Second month

Mean temperature: December: -1.4 °C; July: 19.8 °C; Change from December to July: +21.2 °C
Precipitation: December: 5.7 mm/day; July: 0.2 mm/day; Change from December to July: -5.6 mm/day
Daylight: December: 9.2 hours; July: 14.6 hours; Change from December to July: +5.4 hours

Calculated climate highlights

Comparing twelve stored monthly normals for temperature, humidity, wind, and daylight duration across the park.

Lassen National Forest Monthly Climate Highlights: Calculated Temperature, Precipitation, and Daylight Extremes

Calculated monthly averages for temperature, precipitation rate, relative humidity, wind speed, and daylight duration summarize the annual pattern derived from long-term climatology records. Comparing these baseline monthly values highlights distinct seasonal contrasts at a representative park coordinate without indicating observed weather extremes or uniform regional conditions.

Warmest month: July19.8 °C
Coolest month: December-1.4 °C
Wettest month: December5.7 mm/day
Driest month: July0.2 mm/day
Most humid month: January86.1%
Windiest month: December2.7 m/s
Longest daylight: June14.8 hours

Interactive climate map

National park climate map

Open the climate map to compare monthly temperature, precipitation, and other averages.

Global National Park Climate Map

Other park climates

Explore monthly temperature, precipitation, and regional atmospheric patterns across diverse protected landscapes

Comparing Lassen National Forest Climate With Other Protected Area Profiles

Examine long-term monthly temperature normals and precipitation rhythms across different protected landscapes to understand atmospheric contrast. Analyzing humidity, wind, and daylight variations provides a structured method for evaluating diverse geographic settings without assuming equivalent conditions.