April weather forecastCathlamet, WA
April
Weather in April
April in Cathlamet, Washington, is a moderate spring month, with temperature in the range of an average low of 36.5°F (2.5°C) and an average high of 55.4°F (13°C).Temperature
With the arrival of April, Cathlamet's average high-temperature registers at a moderate 55.4°F (13°C), indicating a subtle variation from the previous month. Cathlamet, in the month of April, anticipates a consistent average low-temperature of 36.5°F (2.5°C).Humidity
In Cathlamet, the average relative humidity in April is 84%.Rainfall
In April, the rain falls for 16.1 days. Throughout April, 1.06" (27mm) of precipitation is accumulated. In Cathlamet, Washington, during the entire year, the rain falls for 141.6 days and collects up to 11.57" (294mm) of precipitation.Snowfall
In Cathlamet, snow does not fall in April through November.Daylight
In April, the average length of the day is 13h and 36min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:42 pm. On the last day of April, sunrise is at 5:59 am and sunset at 8:21 pm PDT.
Sunshine
The average sunshine in April is 6.2h.UV index
The average daily maximum UV index in April in Cathlamet is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 3 in April transforms into this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Cathlamet, WA
- Average high temperature in April: 55.4°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in April: 36.5°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in April
Cathlamet, WA
- Average pressure in April: 30.07"Hg
The months with the highest atmospheric pressure are January and December (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in April
Cathlamet, WA
- Average wind speed in April: 4.5mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in April
Cathlamet, WA
- Average humidity in April: 84%
The months with the highest relative humidity are February, November and December (89%).
The month with the lowest relative humidity is July (75%).
Average rainfall in April
Cathlamet, WA
- Average rainfall in April: 1.06"
The wettest month (with the highest rainfall) is January (1.77").
The driest month (with the least rainfall) is August (0.24").
Average rainfall days in April
Cathlamet, WA
- Average rainfall days in April: 16.1 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (4.7 days).
Average snowfall in April
Cathlamet, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in April
Cathlamet, WA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Cathlamet, WA
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in April: 6h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in April
Cathlamet, WA
- Average sunshine days in April: 11.7 days
The month with the most sunshine days is August (24.6 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in April
Cathlamet, WA
- Average UV index in April: 3
The months with the highest UV index are June and 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
Cathlamet, WA
- Average cloud cover in April: 64
The months with the most cloud cover are February and March (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in April
Cathlamet, WA
- Average visibility in April: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
