April weather forecastRancho Cucamonga, CA
April
Weather in April
April, the same as March, in Rancho Cucamonga, California, is an agreeable spring month, with an average temperature ranging between min 50.5°F (10.3°C) and max 72.9°F (22.7°C).Temperature
As April unfolds, the average high-temperature reaches a still pleasant 72.9°F (22.7°C), hinting at a slight fluctuation from the previous month. A sharp reduction from the daytime highs is witnessed during April, with nighttime temperatures averaging a low of 50.5°F (10.3°C).Humidity
The average relative humidity in April is 51%.Rainfall
In Rancho Cucamonga, during April, the rain falls for 5.4 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, there are 42.3 rainfall days, and 4.53" (115mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Daylight
In April, the average length of the day is 13h and 4min.On the first day of April, sunrise is at 6:36 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:33 pm PDT.
Sunshine
In April, the average sunshine 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 unsafe exposure to UV radiation for the ordinary person.Note: In April, the average maximum UV index of 5 translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Rancho Cucamonga, CA
- Average high temperature in April: 72.9°F
The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in April: 50.5°F
The month with the highest average low temperature is August (66.6°F).
The coldest months (with the lowest average low temperature) are February and December (45.3°F).
Average pressure in April
Rancho Cucamonga, 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
Rancho Cucamonga, CA
- Average wind speed in April: 5.8mph
The windiest month (with the highest average wind speed) is May (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in April
Rancho Cucamonga, 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
Rancho Cucamonga, CA
- Average rainfall in April: 0.47"
The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in April
Rancho Cucamonga, CA
- Average rainfall days in April: 5.4 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.9 days).
Average snowfall days in April
Rancho Cucamonga, 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
Rancho Cucamonga, CA
- Average daylight in April: 13h and 6min
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 24min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in April
Rancho Cucamonga, CA
- Average sunshine days in April: 24 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (22.8 days).
Average UV index in April
Rancho Cucamonga, 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
Rancho Cucamonga, CA
- Average cloud cover in April: 16
The months with the most cloud cover are February and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in April
Rancho Cucamonga, 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).
