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
April welcomes an average high-temperature of a pleasant 71.6°F (22°C), not much different from the preceding month. Throughout the month of April, Irwindale reports a steady low-temperature average of 51.3°F (10.7°C).Humidity
In April, the average relative humidity is 54%.Rainfall
In Irwindale, in April, it is raining for 5.5 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, there are 49.6 rainfall days, and 8.11" (206mm) of precipitation is accumulated.Snowfall
January through November are months without snowfall.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 7:12 pm. On the last day of April, sunrise is at 6:02 am and sunset at 7:35 pm PDT.
Sunshine
In April, the average sunshine in Irwindale is 11.3h.UV index
The average daily maximum UV index in April in Irwindale is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In April, the maximum UV index of 5 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Irwindale?
What is the average humidity in April in Irwindale?
How much does it rain in Irwindale in April?
When it does not snow in Irwindale?
How many hours of daylight does Irwindale have in April?
When is the sunrise / sunset in April in Irwindale?
How many hours of sunshine does Irwindale have in April?
How high is the UV index in April in Irwindale?
Average temperature in April
Irwindale, CA
- Average high temperature in April: 71.6°F
The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in April: 51.3°F
The month with the highest average low temperature is August (64.9°F).
The coldest months (with the lowest average low temperature) are February and December (47.3°F).
Average pressure in April
Irwindale, CA
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Irwindale, CA
- Average wind speed in April: 5.7mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in April
Irwindale, CA
- Average humidity in April: 54%
The months with the highest relative humidity are May and June (57%).
The month with the lowest relative humidity is November (46%).
Average rainfall in April
Irwindale, CA
- Average rainfall in April: 0.63"
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
Irwindale, CA
- Average rainfall days in April: 5.5 days
The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in April
Irwindale, CA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in April /
Average sunshine in April
Irwindale, 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 months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in April
Irwindale, CA
- Average sunshine days in April: 23.7 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in April
Irwindale, CA
- Average UV index in April: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in April
Irwindale, 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
Irwindale, 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).
Irwindale, California, USA
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