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's arrival coincides with a subtle temperature rise, moving from March's fresh 52.3°F (11.3°C) to a mild 59.9°F (15.5°C). Caldwell experiences a nighttime temperature average of 40.6°F (4.8°C) during April.Humidity
In Caldwell, the average relative humidity in April is 52%.Rainfall
In April, the rain falls for 11.7 days. Throughout April, 0.83" (21mm) of precipitation is accumulated. Throughout the year, there are 103.7 rainfall days, and 9.84" (250mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.3 snowfall days, in April, Caldwell aggregates 0.24" (6mm) of snow. Throughout the year, there are 22.2 snowfall days, and 9.76" (248mm) of snow is accumulated.Daylight
In Caldwell, the average length of the day in April is 13h and 28min.On the first day of April, sunrise is at 7:26 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 8:48 pm MDT.
Sunshine
The average sunshine in April is 9.6h.UV index
In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In April, the maximum UV index of 3 suggests this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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?
What is the last month it snows?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Caldwell have in April?
What is the UV index reading in April?
Average temperature in April
Caldwell, ID
- Average high temperature in April: 59.9°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is December (36.3°F).
- Average low temperature in April: 40.6°F
The month with the highest average low temperature is August (62.8°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).
Average pressure in April
Caldwell, ID
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in April
Caldwell, ID
- Average wind speed in April: 7.3mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).
Average humidity in April
Caldwell, ID
- Average humidity in April: 52%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (29%).
Average rainfall in April
Caldwell, ID
- Average rainfall in April: 0.83"
The wettest month (with the highest rainfall) is March (1.38").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in April
Caldwell, ID
- Average rainfall days in April: 11.7 days
The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in April
Caldwell, ID
- Average snowfall in April: 0.24"
The month with the highest snowfall is December (3.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Caldwell, ID
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is December (7.2 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
Caldwell, 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 4min
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 42min).
Average sunshine days in April
Caldwell, ID
- Average sunshine days in April: 16.3 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is March (14.6 days).
Average UV index in April
Caldwell, 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
Caldwell, ID
- Average cloud cover in April: 29
The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in April
Caldwell, 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).
Caldwell, Idaho, USA
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