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Park climate1991–2020 climate normals1,356 m source elevationNASA POWER

Analyzing long term temperature, precipitation, humidity, wind, and daylight cycles

Willamette National Forest Monthly Climate Normals, 1991 to 2020 Atmospheric Data Profiles

Climate records for Willamette National Forest provide a structured overview of atmospheric patterns based on a representative observation point at an elevation of 1355.58 meters. Monthly data from 1991 to 2020 details variations in average maximum, minimum, and mean temperatures, alongside daily precipitation rates and humidity levels. These figures outline consistent annual environmental trends without representing live weather or localized conditions across the broader protected landscape.

Annual climate pattern

Long-term monthly temperature trends and average daily precipitation rates recorded across the calendar year

Willamette National Forest Annual Climate Normals, Average Monthly Temperatures, and Precipitation Patterns

Monthly average temperatures across Willamette National Forest shift from sub-zero winter minimums to peak summer maximums near thirty degrees Celsius over twelve recorded intervals. Average daily precipitation rates concurrently transition from heavier winter levels to much drier summer conditions based on a representative observation coordinate.
Mean temperatureAverage minimum–maximum rangePrecipitation
Temperature (°C)PrecipitationUp to 6.6 mm/day-20°-10°0°10°20°30°40°-1°0°1°4°8°11°15°15°12°7°2°-1°012345675.64.54.43.72.81.70.50.51.33.15.96.6JanFebMarAprMayJunJulAugSepOctNovDec
Annual mean
6 °C
Warmest month
July
Coolest month
December
Wettest month
December
Twelve-month climate

Track long-term monthly temperature bounds, average daily precipitation rates, humidity, wind speed, and daylight hours across the calendar year.

Willamette National Forest Twelve Month Climate Comparison and Weather Normals

Examine twelve distinct monthly climate records to compare average temperature bounds and average daily precipitation rates at a representative coordinate within Willamette National Forest. Analyzing relative humidity, wind speed, and calculated daylight hours across the entire calendar year reveals the full scope of local environmental normals.
Mean temperaturePrecipitationHumidityWind speedDaylight
January-1 °C-12.4° to 8.6°5.6 mm/day92%2.4 m/s9.1 hours
February-0.5 °C-11.1° to 11.1°4.5 mm/day89.6%2.3 m/s10.2 hours
March1.3 °C-9.1° to 14.5°4.4 mm/day86.9%2.3 m/s11.7 hours
April3.7 °C-5.9° to 19.2°3.7 mm/day82.8%2.1 m/s13.3 hours
May8 °C-3.1° to 23.3°2.8 mm/day79.5%1.9 m/s14.6 hours
June11.1 °C0.4° to 26.6°1.7 mm/day77.6%1.9 m/s15.3 hours
July15.5 °C3.8° to 30.1°0.5 mm/day71.4%1.7 m/s14.9 hours
August15.2 °C3.5° to 30.8°0.5 mm/day68%1.7 m/s13.8 hours
September12.1 °C0.1° to 28.8°1.3 mm/day67.4%1.8 m/s12.3 hours
October6.6 °C-4.6° to 23°3.1 mm/day76.1%2 m/s10.7 hours
November1.5 °C-9.7° to 15.3°5.9 mm/day87.6%2.3 m/s9.4 hours
December-1.4 °C-13° to 7.7°6.6 mm/day91.8%2.5 m/s8.8 hours
Calculated climate highlights

Calculated monthly comparisons for temperature, precipitation, humidity, wind, and daylight duration

Willamette National Forest Monthly Climate Highlights: Warmest, Coolest, and Wettest Averages

These monthly climate highlights derive from long-term averages sampled at a single coordinate within Willamette National Forest rather than observed weather records. Comparative labels identify the high and low points across twelve stored variables to summarize annual patterns without implying uniform park-wide conditions.
Warmest month
July15.5 °C
Coolest month
December-1.4 °C
Wettest month
December6.6 mm/day
Driest month
July0.5 mm/day
Most humid month
January92%
Windiest month
December2.5 m/s
Longest daylight
June15.3 hours

Interactive climate map

Compare National Park Climate Data Through an Interactive Global Map

Visit the MoriAtlas climate map to compare long-term monthly temperature and precipitation metrics across national parks. This visual interface helps you understand seasonal variations at specific protected area coordinates to deepen your knowledge of global park geography and environmental characteristics.

Global National Park Climate Map
Other park climates

Analyze long term monthly temperature, precipitation, humidity, wind, and daylight across diverse geographic settings.

Comparing Willamette National Forest Climate Profiles With Other Protected Areas

Examine monthly climate normals across different protected landscapes to evaluate varying annual temperature and precipitation rhythms. Reviewing standardized atmospheric records alongside humidity, wind, and daylight metrics provides broad context for regional environmental patterns.
MoriAtlas Explorer

Examine the Mapped Geography and Protected Boundaries of Willamette National Forest

Continue your exploration of Willamette National Forest by delving into its unique volcanic terrain and protected wilderness systems. MoriAtlas provides a structured look at the mountain peaks, river valleys, and forest ecosystems that define this significant Oregon landscape.