Park climate1991–2020 climate normals664 m source elevationNASA POWER

Review annual atmospheric patterns measured over a thirty-year climatology period.

Olympic National Park Climate Normals: Monthly Temperature, Precipitation, and Atmospheric Data

Name: Olympic National Park monthly climate normals
Creator: NASA POWER

These climate records provide an analytical profile of monthly averages for Olympic National Park, based on data sampled from a representative coordinate. Measurements include mean, minimum, and maximum temperatures, along with daily precipitation rates, relative humidity, wind speed, and daylight hours. These 1991 to 2020 averages offer a baseline for comparing annual patterns rather than reflecting current weather or localized microclimate conditions.

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Annual climate pattern

Analyzing monthly thermal ranges and daily precipitation cycles using a thirty year climate baseline.

Olympic National Park Monthly Temperature Trends and Climate Normals

Average monthly temperatures at the representative mid-elevation coordinate of Olympic National Park rise from a January mean of 1.81 °C to an August mean of 14.49 °C, with average daily maximums reaching 28.84 °C. Average daily precipitation rates shift inversely to thermal trends, peaking at 9.73 mm in November and dropping to a low of 1.17 mm in July, based on a thirty year climatology baseline.

Mean temperatureAverage minimum–maximum rangePrecipitation

Annual mean: 7.2 °C
Warmest month: August
Coolest month: December
Wettest month: November

Twelve-month climate

Compare temperature bounds, average daily precipitation, relative humidity, and calculated daylight across the calendar year.

Twelve Month Climate Normals and Monthly Weather Patterns in Olympic National Park

Meteorological averages from 1991 to 2020 provide a structured look at the monthly climatology of Olympic National Park at a representative elevation of 663 meters. Tracking the twelve-month cycle across average minimum and maximum temperatures, average daily precipitation rates, wind speeds, and calculated daylight hours reveals critical shifts that annual averages hide.

	Mean temperature	Precipitation	Humidity	Wind speed	Daylight
January	1.8 °C-7.1° to 8.5°	9.4 mm/day	92.9%	2.7 m/s	8.7 hours
February	1.9 °C-6° to 9.1°	6.5 mm/day	90.5%	2.5 m/s	10 hours
March	3.1 °C-4.1° to 12.5°	6.8 mm/day	89.2%	2.5 m/s	11.6 hours
April	5.3 °C-1.4° to 17.1°	4.8 mm/day	84.9%	2.2 m/s	13.4 hours
May	9 °C1° to 21.6°	2.9 mm/day	81.2%	1.9 m/s	15 hours
June	11.3 °C3.9° to 24°	2.3 mm/day	81.6%	1.8 m/s	15.8 hours
July	14.3 °C6.4° to 27.5°	1.2 mm/day	78.9%	1.6 m/s	15.4 hours
August	14.5 °C6.7° to 28.8°	1.6 mm/day	79.5%	1.5 m/s	14 hours
September	12.2 °C4.1° to 26.7°	2.7 mm/day	81.1%	1.7 m/s	12.3 hours
October	7.6 °C-0.2° to 20°	6.2 mm/day	87.4%	2.2 m/s	10.5 hours
November	3.8 °C-4.3° to 11.9°	9.7 mm/day	92.1%	2.7 m/s	9 hours
December	1.6 °C-6.8° to 8.4°	9 mm/day	93.1%	2.8 m/s	8.2 hours

Calculated climate highlights

Evaluating long term average temperature, precipitation, wind, and daylight cycles across the yearly calendar

Calculated Monthly Climate Highlights and Seasonal Contrasts in Olympic National Park

Calculated benchmarks reveal the warmest, coolest, wettest, and driest months in Olympic National Park using thirty year climatology averages from a representative coordinate. Comparing these monthly maximums and minimums for humidity, wind speed, and daylight duration provides an objective overview of seasonal patterns across the annual cycle.

Warmest month: August14.5 °C
Coolest month: December1.6 °C
Wettest month: November9.7 mm/day
Driest month: July1.2 mm/day
Most humid month: December93.1%
Windiest month: December2.8 m/s
Longest daylight: June15.8 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

Contrast monthly temperature, precipitation, and daylight rhythms across diverse geographic settings

Monthly Climate Profile Comparisons for Olympic National Park and Beyond

Comparing the long-term weather normals of Olympic National Park with other regional or global protected areas reveals atmospheric variations across different elevations and latitudes. Evaluating standardized monthly datasets helps track contrasting patterns in temperature, precipitation, humidity, wind, and daylight hours within diverse conservation landscapes.