April weather forecastChallenge, CA
April
Weather in April
April in Challenge, California, is a comfortable spring month, with an average temperature varying between 45.1°F (7.3°C) and 65.7°F (18.7°C).Temperature
A slight uplift in the average high-temperature marks April, adjusting from March's mild 58.1°F (14.5°C) to a still refreshing 65.7°F (18.7°C). During the nights in April, the temperature averages to a frosty 45.1°F (7.3°C).Humidity
The average relative humidity in April is 65%.Rainfall
In April, the rain falls for 11.3 days. Throughout April, 1.93" (49mm) of precipitation is accumulated. Throughout the year, in Challenge, there are 88.4 rainfall days, and 30.35" (771mm) of precipitation is accumulated.Snowfall
January, March through October are months without snowfall in Challenge.Daylight
In April, the average length of the day is 13h and 17min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:29 pm. On the last day of April, sunrise is at 6:05 am and sunset at 7:58 pm PDT.
Sunshine
In April, the average sunshine in Challenge is 10h.UV index
The average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during April translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Challenge, CA
- Average high temperature in April: 65.7°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is December (52.5°F).
- Average low temperature in April: 45.1°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).
Average pressure in April
Challenge, CA
- Average pressure in April: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Challenge, CA
- Average wind speed in April: 6.2mph
The windiest months (with the highest average wind speed) are February, March and April (6.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in April
Challenge, CA
- Average humidity in April: 65%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and August (34%).
Average rainfall in April
Challenge, CA
- Average rainfall in April: 1.93"
The wettest month (with the highest rainfall) is March (6.02").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in April
Challenge, CA
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is July (1.4 days).
Average snowfall in April
Challenge, CA
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are January, March, April, May, June, July, August, September and October (0").
Average snowfall days in April
Challenge, CA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are January, April, May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Challenge, CA
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 10h and 0min
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
Challenge, CA
- Average sunshine days in April: 17 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (14.5 days).
Average UV index in April
Challenge, CA
- Average UV index in April: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in April
Challenge, CA
- Average cloud cover in April: 29
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in April
Challenge, CA
- 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).





