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 in Challis, Idaho, brings a slight elevation in the average high-temperature, transitioning from March's 35.2°F (1.8°C) to a still icy 42.4°F (5.8°C). Challis's temperature drops to an average low of 25°F (-3.9°C) during the nights of April.Humidity
In April, the average relative humidity in Challis is 73%.Rainfall
In April, in Challis, the rain falls for 9 days. Throughout April, 0.59" (15mm) of precipitation is accumulated. In Challis, during the entire year, the rain falls for 75.7 days and collects up to 6.38" (162mm) of precipitation.Snowfall
Months with snowfall in Challis are January through June, September through December. In Challis, Idaho, in April, snow falls for 4.8 days, with typically accumulated 1.57" (40mm) of snow. In Challis, during the entire year, snow falls for 51.7 days and aggregates up to 18.62" (473mm) of snow.Daylight
In Challis, Idaho, the average length of the day in April is 13h and 31min.On the first day of the month, sunrise is at 7:16 am and sunset at 8:04 pm. On the last day of April, in Challis, sunrise is at 6:27 am and sunset at 8:40 pm MDT.
Sunshine
In April, the average sunshine in Challis is 9.9h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 2 in April interprets into the following advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
How cold does it get in Challis in April?
What is the average humidity in April in Challis?
How much does it rain in Challis in April?
How many days does it snow in April in Challis?
How many hours of daylight does Challis have in April?
When is the sunrise / sunset in April in Challis?
How long on average sun shines in April in Challis?
What are the months with the lowest UV index in Challis?
How high is the UV index in April in Challis?
Average temperature in April
Challis, ID
- Average high temperature in April: 42.4°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is December (26.1°F).
- Average low temperature in April: 25°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).
Average pressure in April
Challis, ID
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Challis, ID
- Average wind speed in April: 5.6mph
The windiest months (with the highest average wind speed) are June and July (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in April
Challis, ID
- Average humidity in April: 73%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are July and August (38%).
Average rainfall in April
Challis, ID
- Average rainfall in April: 0.59"
The wettest month (with the highest rainfall) is June (1.1").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in April
Challis, ID
- Average rainfall days in April: 9 days
The month with the highest number of rainy days is June (10.2 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in April
Challis, ID
- Average snowfall in April: 1.57"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are July and August (0").
Average snowfall days in April
Challis, ID
- Average snowfall days in April: 4.8 days
The month with the highest number of snowfall days is December (10.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Challis, ID
- Average daylight in April: 13h and 3min
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: 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: 5h and 48min).
Average sunshine days in April
Challis, ID
- Average sunshine days in April: 17.2 days
The month with the most sunshine days is July (24.1 days).
The months with the least sunshine days are March and April (17.2 days).
Average UV index in April
Challis, 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, March, April, October, November and December (UV index 2).
Average cloud cover in April
Challis, ID
- Average cloud cover in April: 34
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in April
Challis, ID
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Challis, Idaho, USA
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