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 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
A gentle upsurge in temperatures occurs as March gives way to April, with average highs shifting from a refreshing 57.6°F (14.2°C) to a comfortable 63.1°F (17.3°C). Reilly Heights experiences a significant downturn from peak daytime temperatures throughout April, with the average low-temperature dipping to a wintry 41°F (5°C).Humidity
The average relative humidity in April is 73%.Rainfall
In Reilly Heights, in April, it is raining for 8.6 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 83.3 rainfall days, and 17.72" (450mm) of precipitation is accumulated.Snowfall
In Reilly Heights, snow does not fall in January, March through December.Daylight
The average length of the day in April is 13h and 16min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:38 pm. On the last day of April, sunrise is at 6:15 am and sunset at 8:06 pm PDT.
Sunshine
In April, the average sunshine is 9.6h.UV index
In Reilly Heights, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In April, the maximum UV index of 4 suggests these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Reilly Heights in April?
What is the average humidity in April?
How much does it rain in April?
When it does not snow?
What is the average length of the day in April?
When are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Reilly Heights, CA
- Average high temperature in April: 63.1°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).
- Average low temperature in April: 41°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).
Average pressure in April
Reilly Heights, CA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in April
Reilly Heights, CA
- Average wind speed in April: 5.5mph
The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in April
Reilly Heights, CA
- Average humidity in April: 73%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).
Average rainfall in April
Reilly Heights, CA
- Average rainfall in April: 1.02"
The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in April
Reilly Heights, CA
- Average rainfall days in April: 8.6 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).
Average snowfall in April
Reilly Heights, CA
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in April
Reilly Heights, CA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.3 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
Reilly Heights, CA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 9h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in April
Reilly Heights, CA
- Average sunshine days in April: 19.8 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).
Average UV index in April
Reilly Heights, CA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 2).
Average cloud cover in April
Reilly Heights, CA
- Average cloud cover in April: 35
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in April
Reilly Heights, CA
- Average visibility in April: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).
Reilly Heights, California, USA
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