April weather forecastRosemont, CA
April
Weather in April
April is a pleasant spring month in Rosemont, California, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 46.6°F (8.1°C).Temperature
April witnesses a minor rise in the average high-temperature, transitioning from an enjoyable 63°F (17.2°C) in March to a pleasant 69.4°F (20.8°C). The nighttime temperature in Rosemont shows a significant divergence from the daytime highs, averaging at a frosty 46.6°F (8.1°C) in April.Humidity
In Rosemont, California, the average relative humidity in April is 68%.Rainfall
In April, in Rosemont, the rain falls for 8.3 days. Throughout April, 1.18" (30mm) of precipitation is accumulated. Throughout the year, in Rosemont, there are 70.5 rainfall days, and 15.04" (382mm) of precipitation is accumulated.Daylight
The average length of the day in April is 13h and 14min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:29 pm. On the last day of April, sunrise is at 6:08 am and sunset at 7:56 pm PDT.
Sunshine
The average sunshine in April in Rosemont is 10.1h.UV index
In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health 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:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Rosemont, CA
- Average high temperature in April: 69.4°F
The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (54.3°F).
- Average low temperature in April: 46.6°F
The month with the highest average low temperature is August (59.9°F).
The coldest months (with the lowest average low temperature) are January and December (40.8°F).
Average pressure in April
Rosemont, 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 (29.9"Hg).
Average wind speed in April
Rosemont, CA
- Average wind speed in April: 5.2mph
The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).
Average humidity in April
Rosemont, CA
- Average humidity in April: 68%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are July and September (44%).
Average rainfall in April
Rosemont, CA
- Average rainfall in April: 1.18"
The wettest month (with the highest rainfall) is March (2.72").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in April
Rosemont, CA
- Average rainfall days in April: 8.3 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is July (1 days).
Average daylight in April /
Average sunshine in April
Rosemont, 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 30min).
- Average sunshine in April: 10h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in April
Rosemont, CA
- Average sunshine days in April: 20.8 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (17.6 days).
Average UV index in April
Rosemont, CA
- Average UV index in April: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in April
Rosemont, CA
- Average cloud cover in April: 29
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in April
Rosemont, 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).
