April weather forecastWalnut Creek, CA
April
Weather in April
April in Walnut Creek, California, is an agreeable spring month, with an average temperature ranging between min 46.4°F (8°C) and max 68°F (20°C).Temperature
The transition into April is marked with an average high-temperature of an agreeable 68°F (20°C), showing an insignificant shift from March's 62.8°F (17.1°C). The nighttime temperature during April exhibits a clear drop from daytime highs, settling at a chilly 46.4°F (8°C).Humidity
In Walnut Creek, California, the average relative humidity in April is 68%.Rainfall
In April, the rain falls for 6.9 days. Throughout April, 0.67" (17mm) of precipitation is accumulated. In Walnut Creek, during the entire year, the rain falls for 68.7 days and collects up to 11.26" (286mm) of precipitation.Daylight
In Walnut Creek, California, the average length of the day in April is 13h and 13min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:31 pm. On the last day of April, in Walnut Creek, sunrise is at 6:12 am and sunset at 7:58 pm PDT.
Sunshine
In Walnut Creek, the average sunshine in April is 10.4h.UV index
In April, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In April, a daily maximum UV index of 5 leads to the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Walnut Creek, CA
- Average high temperature in April: 68°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in April: 46.4°F
The month with the highest average low temperature is September (57.2°F).
The coldest months (with the lowest average low temperature) are January and December (42.4°F).
Average pressure in April
Walnut Creek, CA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Walnut Creek, CA
- Average wind speed in April: 6.5mph
The windiest month (with the highest average wind speed) is May (7.3mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).
Average humidity in April
Walnut Creek, CA
- Average humidity in April: 68%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are September and October (58%).
Average rainfall in April
Walnut Creek, CA
- Average rainfall in April: 0.67"
The wettest month (with the highest rainfall) is February (2.4").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in April
Walnut Creek, CA
- Average rainfall days in April: 6.9 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (0.8 days).
Average daylight in April /
Average sunshine in April
Walnut Creek, CA
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 10h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in April
Walnut Creek, CA
- Average sunshine days in April: 22.3 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is March (17.5 days).
Average UV index in April
Walnut Creek, CA
- Average UV index in April: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in April
Walnut Creek, CA
- Average cloud cover in April: 27
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in April
Walnut Creek, 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).
