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

April 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
April sees a significant decrease in snow and rain in Crater Lake, but the average low temperature is 21.9°F (-5.6°C), and the nights are freezing.
The snowfall registers 45" (1143mm), while the rainfall is 5" (127mm), which are still heavy considering the increase in the sunshine to a daily 8 hours.
Ranger-led snowshoe walks are popular in the backdrop of the trails through the subalpine forests. For many people, though, the nail-biting cold and large snow cover are enough to avoid a visit to Crater Lake during April.

What is the temperature in April in Crater Lake?

The average high-temperature, in April, in Crater Lake, is 41.7°F (5.4°C), while the average low-temperature is 22.6°F (-5.2°C).

How many days does it rain in April in Crater Lake?

In Crater Lake, in April, during 15.5 rainfall days, 5.5" (138.7mm) of precipitation is typically accumulated.

How many days does it snow in April in Crater Lake?

In Crater Lake, Oregon, in April, during 12.2 snowfall days, 46.7" (1186.2mm) of snow is typically accumulated.

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

In April, the average length of the day in Crater Lake, Oregon, is 13.4h.

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

In April, the average sunshine in Crater Lake is 8h.

What is the UV index intensity in April in Crater Lake?

The average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.
Average temperature in April - Crater Lake, OR
  • Average high temperature in April: 41.8°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 April: 22.6°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 April - Crater Lake, OR
  • Average rainfall in April: 5.5"

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 April - Crater Lake, OR
  • Average rainfall days in April: 15.5 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 April - Crater Lake, OR
  • Average snowfall in April: 46.7"

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

Average snowfall days in April - Crater Lake, OR
  • Average snowfall days in April: 12.2 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 April / Average sunshine in April - Crater Lake, OR
  • Average daylight in April: 13.4h

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 April: 8h

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 April - Crater Lake, OR
  • Average UV index in April: 6

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).