Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
With the onset of April, the average high-temperature subtly transitions from a frosty 49.5°F (9.7°C) in March to a fresh 54.9°F (12.7°C). During April, the nighttime temperature in Martha Lake, Washington, averages of 41.2°F (5.1°C).Humidity
In April, the average relative humidity is 79%.Rainfall
In April, in Martha Lake, the rain falls for 16.8 days. Throughout April, 2.13" (54mm) of precipitation is accumulated. In Martha Lake, during the entire year, the rain falls for 173.1 days and collects up to 26.02" (661mm) of precipitation.Snowfall
Months with snowfall in Martha Lake are January through April, November and December. April is the last month it regularly snows. During 1.1 snowfall days, in April, Martha Lake aggregates 0.28" (7mm) of snow. In Martha Lake, Washington, during the entire year, snow falls for 16.3 days and aggregates up to 10.08" (256mm) of snow.Daylight
The average length of the day in April in Martha Lake is 13h and 41min.On the first day of April in Martha Lake, sunrise is at 6:45 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:21 pm PDT.
Sunshine
In Martha Lake, Washington, the average sunshine in April is 8.2h.UV index
In Martha Lake, Washington, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 3 during April translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What is the usual temperature for Martha Lake in April?
What is the average humidity in April in Martha Lake?
How many days does it rain in April in Martha Lake?
What is the last month it snows in Martha Lake?
How many hours of daylight does Martha Lake have in April?
When is the sunrise / sunset in April in Martha Lake?
How many hours of sunshine does Martha Lake have in April?
What is the UV index reading in April in Martha Lake?
Average temperature in April
Martha Lake, WA
- Average high temperature in April: 54.9°F
The warmest month (with the highest average high temperature) is August (72.7°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in April: 41.2°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (35.4°F).
Average pressure in April
Martha Lake, WA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in April
Martha Lake, WA
- Average wind speed in April: 5.2mph
The windiest month (with the highest average wind speed) is November (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in April
Martha Lake, WA
- Average humidity in April: 79%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (72%).
Average rainfall in April
Martha Lake, WA
- Average rainfall in April: 2.13"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in April
Martha Lake, WA
- Average rainfall days in April: 16.8 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in April
Martha Lake, WA
- Average snowfall in April: 0.28"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Martha Lake, WA
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is February (5.2 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
Martha Lake, WA
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
Martha Lake, WA
- Average sunshine days in April: 9.7 days
The month with the most sunshine days is August (22.6 days).
The month with the least sunshine days is November (9.1 days).
Average UV index in April
Martha Lake, WA
- Average UV index in April: 3
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
Martha Lake, WA
- Average cloud cover in April: 48
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in April
Martha Lake, WA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Martha Lake, Washington, USA
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