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 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
The commencement of April sees a minor shift in the average high-temperature, moving from an enjoyable 66.4°F (19.1°C) in March to a pleasant 73°F (22.8°C). Following the sharp contrast to daytime warmth, an average nighttime temperature of 48.2°F (9°C) gets registered during April.Humidity
In April, the average relative humidity is 59%.Rainfall
In Atwater, in April, during 5.2 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. Throughout the year, there are 36.8 rainfall days, and 3.03" (77mm) of precipitation is accumulated.Daylight
In Atwater, the average length of the day in April is 13h and 11min.On the first day of April, sunrise is at 6:46 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 7:51 pm PDT.
Sunshine
The average sunshine in April is 10.8h.UV index
In Atwater, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 5 during April translates into the following directions:
Be vigilant - Suggestions to stave off sun damage are provided. Direct Sun exposure should be minimized especially during midday when radiation is most intense. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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 many days does it rain in April?
How many hours of daylight does Atwater have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Atwater have in April?
What is the UV index reading in April?
Average temperature in April
Atwater, CA
- Average high temperature in April: 73°F
The warmest month (with the highest average high temperature) is July (98.6°F).
The month with the lowest average high temperature is December (56.1°F).
- Average low temperature in April: 48.2°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in April
Atwater, CA
- Average pressure in April: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Atwater, CA
- Average wind speed in April: 6.7mph
The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity in April
Atwater, CA
- Average humidity in April: 59%
The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is July (34%).
Average rainfall in April
Atwater, CA
- Average rainfall in April: 0.24"
The wettest months (with the highest rainfall) are March and December (0.55").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in April
Atwater, CA
- Average rainfall days in April: 5.2 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (0.5 days).
Average daylight in April /
Average sunshine in April
Atwater, CA
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 10h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in April
Atwater, CA
- Average sunshine days in April: 25.3 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is February (23 days).
Average UV index in April
Atwater, CA
- Average UV index in April: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in April
Atwater, CA
- Average cloud cover in April: 22
The month with the most cloud cover is December (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in April
Atwater, 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).
Atwater, California, USA
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