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
As Lyman transitions into April, a marginal rise in the average high-temperature is observed, moving from a chilly 46.6°F (8.1°C) in March to a cool 52°F (11.1°C). Lyman experiences a mean low-temperature of 37.8°F (3.2°C) during April.Humidity
In April, the average relative humidity is 83%.Rainfall
In April, in Lyman, the rain falls for 20.8 days. Throughout April, 4.17" (106mm) of precipitation is accumulated. Throughout the year, in Lyman, there are 203.2 rainfall days, and 49.72" (1263mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.2 snowfall days, in April, Lyman aggregates 0.24" (6mm) of snow. Throughout the year, in Lyman, there are 12 snowfall days, and 12.32" (313mm) of snow is accumulated.Daylight
In Lyman, Washington, the average length of the day in April is 13h and 44min.On the first day of April, sunrise is at 6:44 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:22 pm PDT.
Sunshine
In Lyman, the average sunshine in April is 7.2h.UV index
In Lyman, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 3 during April morphs into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What is the usual temperature for Lyman in April?
What is the average humidity in April in Lyman?
How many days does it rain in April in Lyman?
What is the last month it snows in Lyman?
How many hours of daylight does Lyman have in April?
When are sunrise and sunset in April in Lyman?
How long on average sun shines in April in Lyman?
How high is the UV index in April in Lyman?
Average temperature in April
Lyman, WA
- Average high temperature in April: 52°F
The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is December (40.5°F).
- Average low temperature in April: 37.8°F
The month with the highest average low temperature is August (50.5°F).
The coldest months (with the lowest average low temperature) are February and December (32.5°F).
Average pressure in April
Lyman, WA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in April
Lyman, WA
- Average wind speed in April: 4.7mph
The windiest month (with the highest average wind speed) is November (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in April
Lyman, WA
- Average humidity in April: 83%
The months with the highest relative humidity are January, February and March (86%).
The month with the lowest relative humidity is July (75%).
Average rainfall in April
Lyman, WA
- Average rainfall in April: 4.17"
The wettest month (with the highest rainfall) is November (7.09").
The driest month (with the least rainfall) is July (0.98").
Average rainfall days in April
Lyman, WA
- Average rainfall days in April: 20.8 days
The month with the highest number of rainy days is March (22.1 days).
The month with the least rainy days is August (9.4 days).
Average snowfall in April
Lyman, WA
- Average snowfall in April: 0.24"
The month with the highest snowfall is February (4.96").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Lyman, WA
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (4.3 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
Lyman, WA
- Average daylight in April: 13h and 4min
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: 7h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in April
Lyman, WA
- Average sunshine days in April: 7.4 days
The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is March (7.3 days).
Average UV index in April
Lyman, 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, March, October, November and December (UV index 2).
Average cloud cover in April
Lyman, WA
- Average cloud cover in April: 56
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in April
Lyman, WA
- Average visibility in April: 5mi
The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (5mi).
Lyman, Washington, USA
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