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 brings a rise in the average high-temperature, transitioning from March's icy 42.1°F (5.6°C) to a cool 52.7°F (11.5°C). In April, the average low-temperature records at a cold 34.3°F (1.3°C) during the nights.Humidity
The average relative humidity in April is 60%.Rainfall
In Firth, in April, during 15.3 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, there are 124.6 rainfall days, and 12.24" (311mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Firth, in April, snow falls for 5 days, with typically accumulated 1.57" (40mm) of snow. In Firth, Idaho, during the entire year, snow falls for 75.1 days and aggregates up to 30.59" (777mm) of snow.Daylight
In Firth, the average length of the day in April is 13h and 27min.On the first day of April, sunrise is at 7:08 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:29 pm MDT.
Sunshine
The average sunshine in April is 9.9h.UV index
In Firth, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In April, a regular UV index of 3 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How much does it rain in April?
How much does it snow in April?
What is the average length of the day in April?
When are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Firth, ID
- Average high temperature in April: 52.7°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in April: 34.3°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in April
Firth, ID
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Firth, ID
- Average wind speed in April: 8.9mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is January (6mph).
Average humidity in April
Firth, ID
- Average humidity in April: 60%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall in April
Firth, ID
- Average rainfall in April: 1.34"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in April
Firth, ID
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in April
Firth, ID
- Average snowfall in April: 1.57"
The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Firth, ID
- Average snowfall days in April: 5 days
The month with the highest number of snowfall days is December (16.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Firth, ID
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in April
Firth, ID
- Average sunshine days in April: 10.2 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is March (10 days).
Average UV index in April
Firth, ID
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Firth, ID
- Average cloud cover in April: 32
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in April
Firth, ID
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Firth, Idaho, USA
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