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
The arrival of April brings a soft temperature shift, with the average high-temperature nudging from a moderate 58.6°F (14.8°C) in March to a still refreshing 66°F (18.9°C). Clearlake's average low-temperature for the month of April denotes a significant decline from the daily high, recording at a chilly 43.2°F (6.2°C).Humidity
In April, the average relative humidity is 66%.Rainfall
In Clearlake, during April, the rain falls for 8.9 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Clearlake, during the entire year, the rain falls for 79.8 days and collects up to 17.44" (443mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in April in Clearlake is 13h and 15min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:34 pm. On the last day of April, sunrise is at 6:12 am and sunset at 8:02 pm PDT.
Sunshine
In April, the average sunshine is 9.7h.UV index
In Clearlake, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 4 during April leads to these instructions:
Ensure safety - Recommendations to avert sunburn are presented. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What are the temperatures in Clearlake in April?
What is the average humidity in April in Clearlake?
How many days does it rain in April in Clearlake?
When it does not snow in Clearlake?
Does it snow in Clearlake in April?
What is the average length of the day in April in Clearlake?
What time are sunrise and sunset in April in Clearlake?
How many hours of sunshine does Clearlake have in April?
How high is the UV index in April in Clearlake?
Average temperature in April
Clearlake, CA
- Average high temperature in April: 66°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in April: 43.2°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).
Average pressure in April
Clearlake, CA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in April
Clearlake, CA
- Average wind speed in April: 5.7mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in April
Clearlake, CA
- Average humidity in April: 66%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (44%).
Average rainfall in April
Clearlake, CA
- Average rainfall in April: 0.91"
The wettest month (with the highest rainfall) is February (3.7").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in April
Clearlake, CA
- Average rainfall days in April: 8.9 days
The month with the highest number of rainy days is March (13.9 days).
The months with the least rainy days are July and August (1.1 days).
Average snowfall in April
Clearlake, CA
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Clearlake, CA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Clearlake, 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
Clearlake, CA
- Average sunshine days in April: 20.1 days
The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is March (15.8 days).
Average UV index in April
Clearlake, CA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 2).
Average cloud cover in April
Clearlake, CA
- Average cloud cover in April: 32
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in April
Clearlake, 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).
Clearlake, California, USA
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