Climate

Park Ranger collecting snow depth data
Park Ranger collecting snow depth data.

Park rangers have recorded weather conditions at park headquarters since 1931, with only significant interruptions during World War II. Measurements of precipitation, snowfall, snow depth, and maximum and minimum temperature are made once daily around 8 AM. This data establishes average monthly weather patterns that a visitor is likely to experience anytime throughout the year.

October through June, Crater Lake National Park is generally snow covered. Snowfall averages 512 inches (13 meters) annually, and by early spring, it is common to have 10 to15 feet (4 meters) of snow on the ground. July, August, and September are drier and warmer months. A typical daytime high temperature during these three months is around 67°F (19°C), but can range from 40°F to 80°F (4°C to 27°C). Temperatures cool off rapidly in the evening, with an average nighttime low around 40°F (4°C).

For current conditions, please see our Weather and Forecast page.

 
Temperature Unit Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average daily high ºF 34 35 37 42 50 58 69 69 63 52 40 34
ºC 1 2 3 6 10 14 21 21 17 11 4 1
Average daily low ºF 18 18 19 23 28 34 41 41 37 31 23 19
ºC -8 -8 -7 -5 -2 1 5 5 3 -1 -5 -7
Average lake surface ºF 39 38 38 38 40 45 54 59 56 50 45 41
ºC 4 3 3 3 4 7 12 15 13 10 7 5
 
Snowfall Unit Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average snowfall Inches 99 80 83 45 19 4 0.2 0.1 3 21 61 93
Centimeters 251 203 211 114 48 10 1 0.3 8 53 155 236
Average snow depth Inches 78 100 114 110 75 23 1 0 0.2 2 16 47
Centimeters 198 254 290 279 191 58 3 0 1 5 41 119

Last updated: September 8, 2019

Contact the Park

Mailing Address:

Crater Lake National Park
PO Box 7

Crater Lake , OR 97604

Phone:

(541) 594-3000

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