April weather forecastPotrero, CA
April
Weather in April
April is an agreeable spring month in Potrero, California, with an average temperature fluctuating between 48.7°F (9.3°C) and 70°F (21.1°C).Temperature
Transitioning from March to April, Potrero observes an average high-temperature of an agreeable 70°F (21.1°C), differing subtly from the previous month. An average low-temperature of 48.7°F (9.3°C) is observed during April nights.Humidity
In April, the average relative humidity is 57%.Rainfall
In Potrero, during April, the rain falls for 5 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, in Potrero, there are 55.1 rainfall days, and 6.93" (176mm) of precipitation is accumulated.Snowfall
In Potrero, snow does not fall in January, March through December.Daylight
In Potrero, the average length of the day in April is 13h and 1min.On the first day of April, sunrise is at 6:33 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 7:27 pm PDT.
Sunshine
The average sunshine in April in Potrero is 11h.UV index
In Potrero, California, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In April, the UV index of 5 transforms into the following advice:
Exercise prevention - Warding off sunburn is urged. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Potrero, CA
- Average high temperature in April: 70°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in April: 48.7°F
The month with the highest average low temperature is August (66.2°F).
The coldest months (with the lowest average low temperature) are February and December (45.1°F).
Average pressure in April
Potrero, CA
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in April
Potrero, CA
- Average wind speed in April: 6.3mph
The windiest months (with the highest average wind speed) are February and December (6.4mph).
The calmest months (with the lowest average wind speed) are August and September (4.7mph).
Average humidity in April
Potrero, CA
- Average humidity in April: 57%
The month with the highest relative humidity is May (59%).
The month with the lowest relative humidity is November (48%).
Average rainfall in April
Potrero, CA
- Average rainfall in April: 0.39"
The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in April
Potrero, CA
- Average rainfall days in April: 5 days
The month with the highest number of rainy days is July (7.3 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in April
Potrero, CA
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.12").
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
Potrero, CA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.2 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
Potrero, CA
- Average daylight in April: 13h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in April: 11h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in April
Potrero, CA
- Average sunshine days in April: 24.7 days
The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is July (19.3 days).
Average UV index in April
Potrero, CA
- Average UV index in April: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in April
Potrero, CA
- Average cloud cover in April: 20
The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in April
Potrero, 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).





