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
Letha, Idaho, experiences a minor temperature shift with the start of April, with average high-temperatures moving from a cool 51.1°F (10.6°C) in March to a refreshing 58.8°F (14.9°C). Throughout April, an average nighttime temperature of 38.8°F (3.8°C) is experienced.Humidity
In Letha, the average relative humidity in April is 57%.Rainfall
In Letha, in April, it is raining for 10.9 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 91.7 rainfall days, and 10.28" (261mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.2 snowfall days, in April, Letha aggregates 0.08" (2mm) of snow. In Letha, during the entire year, snow falls for 22.2 days and aggregates up to 12.95" (329mm) of snow.Daylight
The average length of the day in April is 13h and 29min.On the first day of the month, sunrise is at 7:26 am and sunset at 8:14 pm. On the last day of April, sunrise is at 6:38 am and sunset at 8:49 pm MDT.
Sunshine
In Letha, the average sunshine in April is 9.4h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 3 in April leads to these recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
When are sunrise and sunset in April?
How many hours of sunshine does Letha have in April?
What is the UV index reading in April?
Average temperature in April
Letha, ID
- Average high temperature in April: 58.8°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (34.9°F).
- Average low temperature in April: 38.8°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).
Average pressure in April
Letha, ID
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in April
Letha, ID
- Average wind speed in April: 6.5mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity in April
Letha, ID
- Average humidity in April: 57%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in April
Letha, ID
- Average rainfall in April: 0.87"
The wettest month (with the highest rainfall) is March (1.54").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in April
Letha, ID
- Average rainfall days in April: 10.9 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (3.2 days).
Average snowfall in April
Letha, ID
- Average snowfall in April: 0.08"
The month with the highest snowfall is December (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Letha, ID
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Letha, ID
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 9h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in April
Letha, ID
- Average sunshine days in April: 17.6 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (15.3 days).
Average UV index in April
Letha, ID
- Average UV index in April: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Letha, ID
- Average cloud cover in April: 30
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in April
Letha, ID
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Letha, Idaho, USA
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