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 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
As March transitions into April, the average high-temperature rests at a still enjoyable 67.6°F (19.8°C), maintaining a close resemblance to the previous month. In Halcyon, the nighttime temperature averages to a chilly 48.6°F (9.2°C) during April.Humidity
The average relative humidity in April is 66%.Rainfall
In Halcyon, in April, during 5.4 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. In Halcyon, during the entire year, the rain falls for 47.6 days and collects up to 6.93" (176mm) of precipitation.Daylight
The average length of the day in April is 13h and 6min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:24 pm. On the last day of April, sunrise is at 6:11 am and sunset at 7:47 pm PDT.
Sunshine
In April, the average sunshine is 10.9h.UV index
The average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In April, the average maximum UV index of 5 translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
How much does it rain in April?
How many hours of daylight does Halcyon have 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
Halcyon, CA
- Average high temperature in April: 67.6°F
The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in April: 48.6°F
The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).
Average pressure in April
Halcyon, CA
- Average pressure in April: 30.01"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in April
Halcyon, CA
- Average wind speed in April: 7.3mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in April
Halcyon, CA
- Average humidity in April: 66%
The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).
Average rainfall in April
Halcyon, CA
- Average rainfall in April: 0.47"
The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in April
Halcyon, CA
- Average rainfall days in April: 5.4 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).
Average daylight in April /
Average sunshine in April
Halcyon, CA
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in April: 10h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).
Average sunshine days in April
Halcyon, CA
- Average sunshine days in April: 24.3 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).
Average UV index in April
Halcyon, CA
- Average UV index in April: 5
The months with the highest UV index are June and August (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
Halcyon, CA
- Average cloud cover in April: 20
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in April
Halcyon, 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).
Halcyon, California, USA
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