Crater Lake
Oregon, USA
Long-term weather forecast
Long-term weather forecast
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August weather forecast and Climate
Crater Lake, OR

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A beautiful landscape of the Crater Lake in Oregon, viewed from atop the Watchman
A beautiful landscape of the Crater Lake in Oregon, viewed from atop the Watchman's Peak, under a cloudy sky
August is a warm summer month and the least snowy period in Crater Lake with the average temperatures in the 41°F (5°C) to 70°F (21.1°C).
The snowfall is almost absent, and even the precipitation remains below an inch during the long and sunny days. The lake waters are of a bright blue hue and extremely clear, which makes swimming and the trip to the Wizard Island near the western shoreline enjoyable.
Fishing, camping, and lodging are favorite activities in August in Crate Lake and the surrounding park area.
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  • The average high temperature in August: 69.7°F

The warmest month (with the highest average high temperature) is August (69.7°F).
The month with the lowest average high temperature is December (33.6°F).

  • The average low temperature in August: 40.5°F

Months with the highest average low temperature are July and August (40.5°F).
The coldest month (with the lowest average low temperature) is February (17.8°F).

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  • The average rainfall in August: 1"

The wettest month (with the highest rainfall) is December (11.6").
Driest months (with the lowest rainfall) are July and August (1").

  • The average rainfall days in August: 4 days

The month with the highest number of rainy days is March (18.2 days).
The month with the lowest number of rainy days is July (3.9 days).

  • The average snowfall in August: 0"

The month with the highest snowfall is December (91.1").
The month with the lowest snowfall is August (0").

  • The average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (16.4 days).
The month with the lowest number of snowfall days is August (0 days).

  • The average daylight in August: 14h

Months with the longest days are May, June and July (Average daylight: 15h).
Months with shortest days are January and December (Average daylight: 9h).

  • The average sunshine in August: 11h

The month with most sunshine is July (Average sunshine: 12h).
Months with least sunshine are November and December (Average sunshine: 3).

  • The average UV index in August: 8

Months with the highest UV index are June and July (UV index 9).
The month with the lowest UV index is December (UV index 1).

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