April weather forecastEighteenmile, ID
April
Weather in April
April, like March, in Eighteenmile, Idaho, is a wintry spring month, with temperature in the range of an average low of 23.9°F (-4.5°C) and an average high of 42.4°F (5.8°C).Temperature
An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a wintry 32.9°F (0.5°C) to a still icy 42.4°F (5.8°C). An average nighttime temperature of 23.9°F (-4.5°C) is noted during the month of April.Humidity
The average relative humidity in April is 80%.Rainfall
In April, the rain falls for 14.4 days. Throughout April, 2.48" (63mm) of precipitation is accumulated. Throughout the year, there are 106.1 rainfall days, and 20.83" (529mm) of precipitation is accumulated.Snowfall
January through July, September through December are months with snowfall. In Eighteenmile, in April, snow falls for 16.6 days, with typically accumulated 12.64" (321mm) of snow. In Eighteenmile, during the entire year, snow falls for 138.1 days and aggregates up to 107.64" (2734mm) of snow.Daylight
In Eighteenmile, the average length of the day in April is 13h and 30min.On the first day of April, sunrise is at 7:06 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:30 pm MDT.
Sunshine
In Eighteenmile, Idaho, the average sunshine in April is 8.7h.UV index
The average daily maximum UV index in April is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 during April translates into the following guidance:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. On your guard! Snow's reflection 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
Eighteenmile, ID
- Average high temperature in April: 42.4°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (22.3°F).
- Average low temperature in April: 23.9°F
The month with the highest average low temperature is August (46.6°F).
The coldest months (with the lowest average low temperature) are January and December (6.8°F).
Average pressure in April
Eighteenmile, ID
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Eighteenmile, ID
- Average wind speed in April: 5.8mph
The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).
Average humidity in April
Eighteenmile, ID
- Average humidity in April: 80%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is August (47%).
Average rainfall in April
Eighteenmile, ID
- Average rainfall in April: 2.48"
The wettest month (with the highest rainfall) is February (2.64").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in April
Eighteenmile, ID
- Average rainfall days in April: 14.4 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in April
Eighteenmile, ID
- Average snowfall in April: 12.64"
The month with the highest snowfall is January (19.84").
The month with the least snowfall is August (0").
Average snowfall days in April
Eighteenmile, ID
- Average snowfall days in April: 16.6 days
The month with the highest number of snowfall days is December (23 days).
The month with the least snowfall days is August (0 days).
Average daylight in April /
Average sunshine in April
Eighteenmile, ID
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 8h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Eighteenmile, ID
- Average sunshine days in April: 6.7 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is February (5.9 days).
Average UV index in April
Eighteenmile, ID
- Average UV index in April: 2
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 1).
Average cloud cover in April
Eighteenmile, ID
- Average cloud cover in April: 44
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in April
Eighteenmile, ID
- Average visibility in April: 5mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (3mi).
