Crater Lake
Oregon, USA
Long-term weather forecast
Long-term weather forecast

July weather forecast and climate
Crater Lake, OR

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
July is the warmest, driest and sunniest month of the year in Crater Lake, as the average high temperature reaches 70°F (21.1°C).
The snowfall is meager, while the rainfall is a scanty 0.7" (17.8mm), although frost is not entirely surprising in July. Lightning storms are frequent, so avoid mountaintops and open areas.
The North Pacific High is active during the summer, which keeps Crater Lake relatively dry and warm in the season. Long-sleeved shirts and pants are suitable during the long days with 12 hours of sunlight in July, which is one of the best times to visit Crater Lake.

What is the temperature in July in Crater Lake?

In July, the average high-temperature is 68.7°F (20.4°C), and the average low-temperature is 40.5°F (4.7°C).

How much does it rain in Crater Lake in July?

In Crater Lake, Oregon, during July, the rain falls for 3.9 days and regularly aggregates up to 1" (26.2mm) of precipitation.

What is the last month it snows in Crater Lake?

July is the last month it regularly snows. During 0.1 snowfall days, in July, Crater Lake aggregates 0.1" (2.5mm) of snow.

How many hours of daylight does Crater Lake have in July?

In Crater Lake, Oregon, the average length of the day in July is 15h.

What month has the most sunshine in Crater Lake?

With an average of 12h of sunshine, July has the most sunshine of the year in Crater Lake.

How long on average sun shines in July in Crater Lake?

The average sunshine in July in Crater Lake is 12h.

What is the month with the highest UV index in Crater Lake?

June and July, with an average maximum UV index of 9, are months with the highest UV index.

How high is the UV index in July in Crater Lake?

In Crater Lake, the average daily maximum UV index in July is 9. A UV Index estimate of 8 to 10 represents a very high health risk from the exposure to the Sun's UV rays.
Average temperature in July - Crater Lake, OR
  • Average high temperature in July: 68.7°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).

  • Average low temperature in July: 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).

Average rainfall in July - Crater Lake, OR
  • Average rainfall in July: 1"

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

Average rainfall days in July - Crater Lake, OR
  • Average rainfall days in July: 3.9 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).

Average snowfall in July - Crater Lake, OR
  • Average snowfall in July: 0.1"

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

Average snowfall days in July - Crater Lake, OR
  • Average snowfall days in July: 0.1 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).

Average daylight in July / Average sunshine in July - Crater Lake, OR
  • Average daylight in July: 15h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in July: 12h

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

Average UV index in July - Crater Lake, OR
  • Average UV index in July: 9

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).