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Contents
- The climate of Olympic National Park
- The best time to visit Olympic National Park
- The worst time to visit Olympic National Park
- Spring weather in Olympic National Park
- Summer weather in Olympic National Park
- Autumn weather in Olympic National Park
- Winter weather in Olympic National Park
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average rainfall
- Average rainfall days
- Average snowfall
- Average daylight
The incredibly scenic Green Moss stream flowing downstream in the Olympic National Park, Washington
The climate of Olympic National Park
Olympic National Park, located in Washington, USA, falls under the Csb category in the Köppen climate classification. This signifies a Mediterranean climate, characterized by warm summers. The area's geographical position contributes significantly to its distinct weather patterns, with profound variations observed throughout the year.
Temperature highs span from a moderate 40.7°F (4.8°C) in January to a pleasant 74.1°F (23.4°C) in August, while temperature lows teeter from a chilly 31.1°F (-0.5°C) to a mild 50.9°F (10.5°C) across the same intervals. Rainfall demonstrates a notable pattern, with heavier downpours peaking in December and January at 9.9" (251mm) and 9" (229mm) respectively, while tapering off to a mere 0.8" (20mm) in the month of July. Substantial shifts materialize in daylight hours too. The park enjoys the longest stretch of light during June with 16 hours, whereas the shortest daylight span occurs in December with 8.5 hours.
A distinctive feature of this climate zone includes a dose of snowfall as well. December witnesses 3.1" (79mm) of snow, tapering off to a bare minimum from April to November.
Temperature highs span from a moderate 40.7°F (4.8°C) in January to a pleasant 74.1°F (23.4°C) in August, while temperature lows teeter from a chilly 31.1°F (-0.5°C) to a mild 50.9°F (10.5°C) across the same intervals. Rainfall demonstrates a notable pattern, with heavier downpours peaking in December and January at 9.9" (251mm) and 9" (229mm) respectively, while tapering off to a mere 0.8" (20mm) in the month of July. Substantial shifts materialize in daylight hours too. The park enjoys the longest stretch of light during June with 16 hours, whereas the shortest daylight span occurs in December with 8.5 hours.
A distinctive feature of this climate zone includes a dose of snowfall as well. December witnesses 3.1" (79mm) of snow, tapering off to a bare minimum from April to November.
The best time to visit Olympic National Park
Given the climate data, the optimum period to explore Olympic National Park encompasses June through September. Dubbed the warmest months, temperatures reach between 63.5°F (17.5°C) and 74.1°F (23.4°C), offering ideal conditions for outdoor activities. Rainfall during this period is at its least, dropping to a scant 0.8" (20mm) in July and peaking at a manageable 1.8" (46mm) in September. Coupled with abundant daylight hours, ranging from 14.2 to 16 hours, these months foster a conducive atmosphere for visitors to explore the park's scenic beauty.
The worst time to visit Olympic National Park
Contrastingly, the months of November through February qualify as the less favorable period for visiting the park. Temperatures during this span plummet to lows varying from 31.1°F (-0.5°C) to 35.7°F (2.1°C), and highs between 40.7°F (4.8°C) and 46.4°F (8°C). Rainfall exhibits a substantial surge, peaking in December at 9.9" (251mm), thereby fostering a damp and chilly environment. Simultaneously, daylight hours dwindle to bare minimum from 8.5 to 9.3 hours, restricting outdoor exploration time for visitors.
Spring weather in Olympic National Park
Spring in Olympic National park covers the months from March to May, bestowing an eclectic mix of temperatures and rainfall. High temperatures range from a cool 50.3°F (10.2°C) in March to a warm 63.5°F (17.5°C) in May, while lows hover between 34.1°F (1.2°C) and 42°F (5.6°C). Rainfall undergoes a steady decline from a heavier 6" (152mm) in March to 1.8" (46mm) in May, making the landscape come alive with blooming flora. The daylight hours also show an increase, spanning from 11.9 hours in March to a generous 15.2 hours in May.
Summer weather in Olympic National Park
Summers in Olympic National Park usher in the warmest months of the year between June and August. Temperatures shoot up to a high of 74.1°F (23.4°C) and a low of 50.9°F (10.5°C) in August, bestowing the park with a pleasant warmth. The rainfall during this time drops to a minimum of 0.8" (20mm) in July and facilitates largely dry conditions. The breadth of daylight expands further, providing ample time and favorable circumstances for outdoor activities in the park.
Autumn weather in Olympic National Park
The autumn season from September to November begets a gradual drop in temperatures, from 68.5°F (20.3°C) to 46.4°F (8°C) for highs and 47.5°F (8.6°C) to 35.7°F (2.1°C) for lows. Rainfall exhibits an upward trend from 1.8" (46mm) in September to 9.2" (234mm) in November. Coupled with the decrease in daylight hours, from 12.6 to 9.3 hours, it heralds the onset of the park’s cold season.
Winter weather in Olympic National Park
Winter in Olympic National Park spans from December to February, ushering in the chilliest period of the year. Temperature lows drop to 31.1°F (-0.5°C) in January, with highs not exceeding 44.9°F (7.2°C) in February. The park experiences its heaviest rainfall during this period, reaching a maximum of 9.9" (251mm) in December. Daylight, on the other hand, witnesses a slump, with December accounting for the shortest span of 8.5 hours. Additionally, the park sees snowfall, registering 3.1" (79mm) in December, adding to the winter allure.
Weather in January
January in Olympic National Park presents residents and visitors with an inviting winter scene. The onset of the year brings in the chilled atmosphere as the landscape decorates itself with an average of 7.1" (180mm) of snowfall. Weather in January »
Weather in February
February experiences a shift towards warmer days with an appreciable hike in temperatures compared to January. The month is noteworthy for a significant decrease in snowfall at 2" (51mm) on average. Winter is gradually losing its grasp on the environment in Olympic National Park, and the days are starting to lengthen. Weather in February »
Weather in March
March showcases the considerable move away from the cold and toward the warming trend of spring. The month sees a drop in average snowfall to only 1.2" (30mm), highlighting a definite move towards more temperate conditions. March, when compared with February, presents a little more rainfall, but the increase in daylight hours, now reaching close to 12 hours a day, signals the incoming spring. Weather in March »
Weather in April
With April sets in the full bloom of spring in Olympic National Park. It marks an end to snowfall, a significant reduction in rainfall from 6" (152mm) to 3.3" (84mm), and an increase in temperatures, shedding the last vestiges of winter entirely. Weather in April »
Weather in May
May in Olympic National Park highlights the transitioning weather from spring to early summer. The park witnesses a significant dip in rainfall, now only averaging 1.8" (46mm), indicating drier days when compared to the previously more humid April. Weather in May »
Weather in June
June introduces summer to Olympic National Park, showcasing warm, longer days. Observing a leap in average lowest temperature to 46.6°F (8.1°C) from May, this transformation brings a welcome change from the cool spring evenings. Weather in June »
Weather in July
July in Olympic National park becomes the embodiment of perfect summer coordinates. Overlooking the subtle changes from June, July emerges as the month of greatest heat, with the mercury rising up to an average maximum of 73.8°F (23.2°C). Weather in July »
Weather in August
August continues the reign of summer with temperatures almost parallel to those experienced in July. The month keeps the trend of minimal rainfall, with a slight increase to 1.2" (30mm), maintaining the nature of hot, dry days. The August weather, desisting from significant changes from the previous month, brings us the long summer days filled with approximately 14.2 daylight hours. Weather in August »
Weather in September
September serves as the transition period from summer to fall in Olympic National Park. It maintains the heat of summer with average maximum temperatures touching 68.5°F (20.3°C) but introducing the essence of fall towards the end. Weather in September »
Weather in October
In October, autumn firmly makes its presence felt in Olympic National Park. The park bids farewell to the last of the high-temperature days of September, welcoming a mild, more forgiving climate. The month records a jump in rainfall to 5.3" (135mm), marking the move towards a wetter period. Weather in October »
Weather in November
November sees a significant acceleration towards chillier weather in Olympic National Park. Reminiscent of the falling leaves of October, November observes a considerable hike in rainfall, averaging 9.2" (234mm). November is the welcome mat laid out by the impending winter, indicating the approaching season of snow and cold. Weather in November »
Weather in December
December reigns in full winter mode at Olympic National Park. The month brings back snow with an average of 3.1" (79mm) after seeing none from May to November, coupled with the highest average rainfall for the year, incoming at 9.9" (251mm). Weather in December »
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
The month of January sees the average lowest temperatures in Olympic National Park, reaching 40.6°F (4.8°C) at the peak and 31.1°F (-0.5°C) at the low.
How much does it rain?
In Olympic National Park, during the entire year, the rain falls for 149 days and collects up to 56.3" (1430mm) of precipitation.
When does it snow?
Months with snowfall are January through March, November and December.
When does it snow the most?
January is the month with the most snowfall in Olympic National Park, with 7.09" (180mm) of accumulated snow.
How much does it snow?
In Olympic National Park, during the entire year, snow aggregates up to 14.49" (368mm).
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When it does not snow?
In Olympic National Park, snow does not fall in April through October.
When are the longest days?
June has the longest days of the year, with an average of 16h and 0min of daylight.
What is the driest month?
The month with the least rainfall is July, when the rain falls for 5 days and typically collects 0.75" (19mm) of precipitation.
What is the warmest month?
August brings the highest temperatures in Olympic National Park, with an average high of 74.1°F (23.4°C) and an average low of 50.9°F (10.5°C).
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 17 days and accumulates 9.88" (251mm) of precipitation.
What is the month with the shortest days in Olympic National Park?
December has the shortest days of the year, with an average of 8h and 30min of daylight.
Average temperature
Olympic National Park, WA
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is January (40.7°F).
The month with the highest average low temperature is August (50.9°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average rainfall
Olympic National Park, WA
The wettest month (with the highest rainfall) is December (9.9").
The driest month (with the least rainfall) is July (0.8").
Average rainfall days
Olympic National Park, WA
- Average rainfall days in January:
17 days - Average rainfall days in February:
15 days - Average rainfall days in March:
16 days - Average rainfall days in April:
13 days - Average rainfall days in May:
11 days - Average rainfall days in June:
9 days
- Average rainfall days in July:
5 days - Average rainfall days in August:
6 days - Average rainfall days in September:
8 days - Average rainfall days in October:
14 days - Average rainfall days in November:
18 days - Average rainfall days in December:
17 days
The month with the highest number of rainy days is November (18 days).
The month with the least rainy days is July (5 days).
Average snowfall
Olympic National Park, WA
The month with the highest snowfall is January (7.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average daylight
Olympic National Park, WA
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 4min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 3min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
Olympic National Park, Washington, USA
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