April weather forecastPetrolia, CA
April
Weather in April
April in Petrolia, California, is a moderate spring month, with an average temperature fluctuating between 58.5°F (14.7°C) and 41.5°F (5.3°C).Temperature
With the start of April, Petrolia measures an average high-temperature of a moderate 58.5°F (14.7°C), not significantly differing from March's 54.9°F (12.7°C). During April, the temperature in Petrolia is averaged to a low of 41.5°F (5.3°C) at night.Humidity
In April, the average relative humidity is 80%.Rainfall
In April, in Petrolia, the rain falls for 12.3 days. Throughout April, 2.28" (58mm) of precipitation is accumulated. In Petrolia, during the entire year, the rain falls for 110.9 days and collects up to 28.27" (718mm) of precipitation.Snowfall
In Petrolia, California, snow does not fall in January, March through December.Daylight
The average length of the day in April in Petrolia is 13h and 19min.On the first day of the month, sunrise is at 6:59 am and sunset at 7:42 pm. On the last day of April, in Petrolia, sunrise is at 6:16 am and sunset at 8:12 pm PDT.
Sunshine
The average sunshine in April is 8.7h.UV index
In April, the average daily maximum UV index in Petrolia is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 4 in April translates into the following instructions:
Undertake precautions - Guarding against sun damage is counselled. When the Sun is at its strongest around midday, find shade and limit exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Petrolia, CA
- Average high temperature in April: 58.5°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in April: 41.5°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is February (39.7°F).
Average pressure in April
Petrolia, CA
- Average pressure in April: 30.06"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.96"Hg).
Average wind speed in April
Petrolia, CA
- Average wind speed in April: 7.4mph
The windiest month (with the highest average wind speed) is June (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in April
Petrolia, CA
- Average humidity in April: 80%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is September (73%).
Average rainfall in April
Petrolia, CA
- Average rainfall in April: 2.28"
The wettest month (with the highest rainfall) is December (4.96").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in April
Petrolia, CA
- Average rainfall days in April: 12.3 days
The month with the highest number of rainy days is March (17.3 days).
The months with the least rainy days are July and August (1.8 days).
Average snowfall in April
Petrolia, CA
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.59").
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
Petrolia, 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 and November (0 days).
Average daylight in April /
Average sunshine in April
Petrolia, CA
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 42min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in April
Petrolia, CA
- Average sunshine days in April: 15.4 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (11.9 days).
Average UV index in April
Petrolia, CA
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in April
Petrolia, CA
- Average cloud cover in April: 42
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in April
Petrolia, CA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
