April weather forecastMonrovia, CA
April
Weather in April
April in Monrovia, California, is an agreeable spring month, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 72.1°F (22.3°C).Temperature
Monrovia, California, marks the onset of April with an average high-temperature of a pleasant 72.1°F (22.3°C), subtly divergent from March's 67.5°F (19.7°C). Monrovia documents a significant temperature variance in April, with the mean nighttime lows settling at a chilly 49.6°F (9.8°C).Humidity
In April, the average relative humidity is 54%.Rainfall
In Monrovia, in April, during 5.8 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Monrovia, California, during the entire year, the rain falls for 50.9 days and collects up to 8.46" (215mm) of precipitation.Daylight
The average length of the day in April is 13h and 4min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:13 pm. On the last day of April, sunrise is at 6:02 am and sunset at 7:35 pm PDT.
Sunshine
The average sunshine in April is 11.3h.UV index
In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In April, a daily UV index of 5 turns into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Monrovia, CA
- Average high temperature in April: 72.1°F
The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in April: 49.6°F
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (45.7°F).
Average pressure in April
Monrovia, CA
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Monrovia, CA
- Average wind speed in April: 5.8mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in April
Monrovia, CA
- Average humidity in April: 54%
The months with the highest relative humidity are March and May (56%).
The month with the lowest relative humidity is November (46%).
Average rainfall in April
Monrovia, CA
- Average rainfall in April: 0.67"
The wettest months (with the highest rainfall) are February and December (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in April
Monrovia, CA
- Average rainfall days in April: 5.8 days
The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.1 days).
Average daylight in April /
Average sunshine in April
Monrovia, 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 18min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in April
Monrovia, CA
- Average sunshine days in April: 22.8 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21 days).
Average UV index in April
Monrovia, CA
- Average UV index in April: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in April
Monrovia, CA
- Average cloud cover in April: 17
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in April
Monrovia, 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).





