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 arrival of April brings an average high-temperature of an agreeable 72.9°F (22.7°C), nearly identical to March's 67.8°F (19.9°C). Alta Loma encounters a substantial decline from its daily high to a low-temperature of 50.2°F (10.1°C) during April nights.Humidity
The average relative humidity in April in Alta Loma is 51%.Rainfall
In Alta Loma, during April, the rain falls for 5.9 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Alta Loma, during the entire year, the rain falls for 50.5 days and collects up to 7.56" (192mm) of precipitation.Daylight
In Alta Loma, the average length of the day in April is 13h and 4min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:11 pm. On the last day of April, sunrise is at 6:01 am and sunset at 7:34 pm PDT.
Sunshine
The average sunshine in April is 11.4h.UV index
In April, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In April, a daily maximum UV index of 5 leads to the following instructions:
Adopt protective measures - It is advised to guard against sun damage. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April in Alta Loma?
How much does it rain in April?
How many hours of daylight does Alta Loma have in April?
When are sunrise and sunset in April in Alta Loma?
How many hours of sunshine does Alta Loma have in April?
How high is the UV index in April?
Average temperature in April
Alta Loma, CA
- Average high temperature in April: 72.9°F
The warmest month (with the highest average high temperature) is August (91.2°F).
The month with the lowest average high temperature is December (61.3°F).
- Average low temperature in April: 50.2°F
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is February (45.1°F).
Average pressure in April
Alta Loma, CA
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in April
Alta Loma, CA
- Average wind speed in April: 5.9mph
The windiest months (with the highest average wind speed) are April and May (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in April
Alta Loma, CA
- Average humidity in April: 51%
The months with the highest relative humidity are February, March and May (53%).
The month with the lowest relative humidity is August (41%).
Average rainfall in April
Alta Loma, CA
- Average rainfall in April: 0.71"
The wettest month (with the highest rainfall) is February (1.73").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in April
Alta Loma, CA
- Average rainfall days in April: 5.9 days
The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is June (1.2 days).
Average daylight in April /
Average sunshine in April
Alta Loma, CA
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in April: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 54min).
Average sunshine days in April
Alta Loma, CA
- Average sunshine days in April: 22.9 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (21.4 days).
Average UV index in April
Alta Loma, CA
- Average UV index in April: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in April
Alta Loma, CA
- Average cloud cover in April: 17
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in April
Alta Loma, 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).
Alta Loma, California, USA
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