April weather forecast
Crater Lake, OR

The weather in Crater Lake in April exhibits a marked decrease in snowfall, symbolizing the end of the winter season with a drop to 46.7" (1186mm). The increased daylight hours and warming temperatures usher in the blooming spring season. The nature awakens from its winter slumber, and the frozen lake starts to manifest signs of thawing. A reduced amount of rainfall means clear days are more common, perfect for outdoor activities in the spring air. The evolving spring weather revitalizes the landscape, making it a feast for the eyes.

Temperature

Crater Lake signifies an average high-temperature of a still icy 41.7°F (5.4°C) in April, closely mirroring the 37.2°F (2.9°C) of March. The low-temperature average for Crater Lake during April stands at a subzero cold 22.6°F (-5.2°C).

Rainfall

In April, in Crater Lake, the rain falls for 15.5 days. Throughout April, 5.47" (139mm) of precipitation is accumulated. Throughout the year, in Crater Lake, there are 145.9 rainfall days, and 66.22" (1682mm) of precipitation is accumulated.

Snowfall

January through July, September through December are months with snowfall. In Crater Lake, in April, during 12.2 snowfall days, 46.69" (1186mm) of snow is typically accumulated. In Crater Lake, during the entire year, snow falls for 101.3 days and aggregates up to 482.48" (12255mm) of snow.

Daylight

In April, the average length of the day in Crater Lake, Oregon, is 13h and 26min.
On the first day of the month, sunrise is at 6:49 am and sunset at 7:35 pm. On the last day of April, sunrise is at 6:02 am and sunset at 8:08 pm PDT.

Sunshine

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

UV index

The average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 6 during April translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.