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
April introduces a minor temperature shift, with average high-temperatures adjusting from March's cool 52.9°F (11.6°C) to a moderate 59.9°F (15.5°C). Grasmere's nighttime temperature during April is consistently averaged at a cold 41.5°F (5.3°C).Humidity
The average relative humidity in April is 48%.Rainfall
In Grasmere, during April, the rain falls for 10.8 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 100.2 rainfall days, and 7.48" (190mm) of precipitation is accumulated.Snowfall
Months with snowfall in Grasmere are January through April, October through December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Grasmere aggregates 0.08" (2mm) of snow. Throughout the year, there are 17.1 snowfall days, and 6.34" (161mm) of snow is accumulated.Daylight
In Grasmere, the average length of the day in April is 13h and 24min.On the first day of April, sunrise is at 7:24 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 8:42 pm MDT.
Sunshine
The average sunshine in April is 9.9h.UV index
In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 4 in April translates into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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?
How many hours of daylight does Grasmere have in April?
What time are sunrise and sunset in April in Grasmere?
How many hours of sunshine does Grasmere have in April?
What is the UV index reading in April?
Average temperature in April
Grasmere, ID
- Average high temperature in April: 59.9°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (36.7°F).
- Average low temperature in April: 41.5°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).
Average pressure in April
Grasmere, ID
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The months with the lowest atmospheric pressure are June and August (29.88"Hg).
Average wind speed in April
Grasmere, ID
- Average wind speed in April: 8.8mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest months (with the lowest average wind speed) are January and September (6.5mph).
Average humidity in April
Grasmere, ID
- Average humidity in April: 48%
The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is July (25%).
Average rainfall in April
Grasmere, ID
- Average rainfall in April: 0.75"
The wettest month (with the highest rainfall) is December (1.06").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in April
Grasmere, ID
- Average rainfall days in April: 10.8 days
The month with the highest number of rainy days is March (14.3 days).
The months with the least rainy days are July and August (3.7 days).
Average snowfall in April
Grasmere, ID
- Average snowfall in April: 0.08"
The month with the highest snowfall is December (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Grasmere, ID
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is December (5.5 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
Grasmere, ID
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in April: 9h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in April
Grasmere, ID
- Average sunshine days in April: 15.8 days
The month with the most sunshine days is July (24 days).
The month with the least sunshine days is March (13.6 days).
Average UV index in April
Grasmere, ID
- Average UV index in April: 4
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
Grasmere, ID
- Average cloud cover in April: 26
The month with the most cloud cover is December (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in April
Grasmere, ID
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Grasmere, Idaho, USA
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