April weather forecastRoche Harbor, WA
April
Weather in April
April is a cool spring month in Roche Harbor, Washington, with temperature in the range of an average high of 52.2°F (11.2°C) and an average low of 46.2°F (7.9°C).Temperature
The high-temperature average in April for Roche Harbor is a fresh 52.2°F (11.2°C), staying closely aligned with March's conditions. April notes an average low temperature of 46.2°F (7.9°C), subtly down from the daytime highs.Humidity
With an average relative humidity of 76%, April is the least humid month.Rainfall
In April, the rain falls for 16.3 days. Throughout April, 1.69" (43mm) of precipitation is accumulated. Throughout the year, there are 167.7 rainfall days, and 23.46" (596mm) of precipitation is accumulated.Snowfall
In Roche Harbor, snow does not fall in April through October.Daylight
In April, the average length of the day is 13h and 44min.On the first day of April, sunrise is at 6:48 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:26 pm PDT.
Sunshine
In April, the average sunshine in Roche Harbor, Washington, is 8.4h.UV index
In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during April translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Roche Harbor, WA
- Average high temperature in April: 52.2°F
The warmest month (with the highest average high temperature) is July (64.9°F).
The months with the lowest average high temperature are January, February and December (45.3°F).
- Average low temperature in April: 46.2°F
The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).
Average pressure in April
Roche Harbor, WA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in April
Roche Harbor, WA
- Average wind speed in April: 8.5mph
The windiest month (with the highest average wind speed) is November (10.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in April
Roche Harbor, WA
- Average humidity in April: 76%
The months with the highest relative humidity are January, August and September (79%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Roche Harbor, WA
- Average rainfall in April: 1.69"
The wettest month (with the highest rainfall) is November (3.43").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in April
Roche Harbor, WA
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).
Average snowfall in April
Roche Harbor, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Roche Harbor, WA
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Roche Harbor, WA
- Average daylight in April: 13h and 42min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in April: 8h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in April
Roche Harbor, WA
- Average sunshine days in April: 11.4 days
The month with the most sunshine days is August (24.7 days).
The month with the least sunshine days is November (8.7 days).
Average UV index in April
Roche Harbor, WA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Roche Harbor, WA
- Average cloud cover in April: 47
The months with the most cloud cover are February and December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in April
Roche Harbor, WA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
