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 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
Fontana, California, marks the start of April with an average high-temperature of an agreeable 72°F (22.2°C), hinting at a slight fluctuation from March's 66.7°F (19.3°C). April nights show a substantial disparity from the daytime peak with an average low-temperature of 49.6°F (9.8°C).Humidity
In April, the average relative humidity is 50%.Rainfall
In Fontana, in April, it is raining for 5.4 days, with typically 0.63" (16mm) of accumulated precipitation. In Fontana, during the entire year, the rain falls for 48.1 days and collects up to 6.89" (175mm) of precipitation.Snowfall
In Fontana, snow does not fall in January, March through December.Daylight
The average length of the day in April is 13h and 4min.On the first day of April, sunrise is at 6:35 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:33 pm PDT.
Sunshine
The average sunshine in April in Fontana is 11.3h.UV index
In April, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In April, the maximum UV index of 5 transforms into these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. To avoid the Sun's strongest rays, limit exposure around the mid-day 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
What is the temperature in April?
What is the average humidity in April?
How many days does it rain in April?
When it does not snow in Fontana?
How many hours of daylight does Fontana have in April?
What time are sunrise and sunset in April in Fontana?
How many hours of sunshine does Fontana have in April?
What is the UV index reading in April?
Average temperature in April
Fontana, CA
- Average high temperature in April: 72°F
The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is December (60.8°F).
- Average low temperature in April: 49.6°F
The month with the highest average low temperature is August (67.3°F).
The coldest months (with the lowest average low temperature) are February and December (44.2°F).
Average pressure in April
Fontana, CA
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in April
Fontana, CA
- Average wind speed in April: 6mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in April
Fontana, CA
- Average humidity in April: 50%
The months with the highest relative humidity are February, March and May (52%).
The month with the lowest relative humidity is August (39%).
Average rainfall in April
Fontana, CA
- Average rainfall in April: 0.63"
The wettest month (with the highest rainfall) is February (1.57").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in April
Fontana, CA
- Average rainfall days in April: 5.4 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 snowfall days in April
Fontana, CA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in April /
Average sunshine in April
Fontana, 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 months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in April
Fontana, CA
- Average sunshine days in April: 24.3 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.1 days).
Average UV index in April
Fontana, 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
Fontana, CA
- Average cloud cover in April: 17
The months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in April
Fontana, 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).
Fontana, California, USA
Weather forecast for your location
2. Allow the app to use your location