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
Janesville's transition into April is marked by a minor temperature shift, moving from a frosty 45.1°F (7.3°C) in March to a cool 53.4°F (11.9°C). Janesville sees an average low-temperature of 32.7°F (0.4°C) during April.Humidity
In April, the average relative humidity in Janesville is 65%.Rainfall
In Janesville, in April, it is raining for 12.8 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, in Janesville, there are 97.2 rainfall days, and 13.98" (355mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In April, in Janesville, it is snowing for 5.5 days. Throughout April, 3.15" (80mm) of snow is accumulated. Throughout the year, in Janesville, there are 52.5 snowfall days, and 43.07" (1094mm) of snow is accumulated.Daylight
In Janesville, the average length of the day in April is 13h and 19min.On the first day of April in Janesville, sunrise is at 6:44 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:56 pm PDT.
Sunshine
The average sunshine in April in Janesville is 10.5h.UV index
The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Janesville?
What is the average humidity in April in Janesville?
How much does it rain in Janesville in April?
How much does it snow in Janesville in April?
What is the average length of the day in April in Janesville?
When is the sunrise / sunset in April in Janesville?
How many hours of sunshine does Janesville have in April?
What is the UV index intensity in April in Janesville?
Average temperature in April
Janesville, CA
- Average high temperature in April: 53.4°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is December (36.9°F).
- Average low temperature in April: 32.7°F
The month with the highest average low temperature is July (52.7°F).
The coldest month (with the lowest average low temperature) is December (22.6°F).
Average pressure in April
Janesville, CA
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Janesville, CA
- Average wind speed in April: 7.2mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).
Average humidity in April
Janesville, CA
- Average humidity in April: 65%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (35%).
Average rainfall in April
Janesville, CA
- Average rainfall in April: 1.34"
The wettest month (with the highest rainfall) is December (2.28").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in April
Janesville, CA
- Average rainfall days in April: 12.8 days
The month with the highest number of rainy days is March (13.4 days).
The months with the least rainy days are July and August (2.8 days).
Average snowfall in April
Janesville, CA
- Average snowfall in April: 3.15"
The month with the highest snowfall is December (10.16").
The months with the least snowfall are July and August (0").
Average snowfall days in April
Janesville, CA
- Average snowfall days in April: 5.5 days
The month with the highest number of snowfall days is December (11.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Janesville, CA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 10h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).
Average sunshine days in April
Janesville, CA
- Average sunshine days in April: 12.7 days
The month with the most sunshine days is August (26.2 days).
The month with the least sunshine days is March (12 days).
Average UV index in April
Janesville, CA
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 1).
Average cloud cover in April
Janesville, CA
- Average cloud cover in April: 30
The month with the most cloud cover is December (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in April
Janesville, CA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Janesville, California, USA
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