May weather forecastEast Porterville, CA
May
Weather in May
The last month of the spring, May, is a moderately hot month in East Porterville, California, with an average temperature fluctuating between 54.1°F (12.3°C) and 79.2°F (26.2°C).Temperature
A slight uplift in the average high-temperature marks May, adjusting from April's agreeable 71.4°F (21.9°C) to a warm 79.2°F (26.2°C). East Porterville, after hot May days, encounters a marked drop to an average nighttime temperature of 54.1°F (12.3°C).Humidity
The average relative humidity in May is 44%.Rainfall
In May, the rain falls for 3.5 days. Throughout May, 0.55" (14mm) of precipitation is accumulated. In East Porterville, during the entire year, the rain falls for 52.3 days and collects up to 9.37" (238mm) of precipitation.Snowfall
In East Porterville, California, snow does not fall in January, March through December.Daylight
In East Porterville, the average length of the day in May is 14h and 6min.On the first day of May, sunrise is at 6:02 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:07 pm PDT.
Sunshine
In May, the average sunshine is 11.7h.UV index
The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 6 in May transforms into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. 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
Average temperature in May
East Porterville, CA
- Average high temperature in May: 79.2°F
The warmest month (with the highest average high temperature) is July (97.7°F).
The month with the lowest average high temperature is December (57.6°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is December (40.3°F).
Average pressure in May
East Porterville, CA
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
East Porterville, CA
- Average wind speed in May: 5.1mph
The windiest month (with the highest average wind speed) is June (5.2mph).
The calmest month (with the lowest average wind speed) is December (3.6mph).
Average humidity in May
East Porterville, CA
- Average humidity in May: 44%
The month with the highest relative humidity is January (64%).
The month with the lowest relative humidity is August (30%).
Average rainfall in May
East Porterville, CA
- Average rainfall in May: 0.55"
The wettest month (with the highest rainfall) is March (1.93").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in May
East Porterville, CA
- Average rainfall days in May: 3.5 days
The month with the highest number of rainy days is March (9.3 days).
The month with the least rainy days is August (0.5 days).
Average snowfall days in May
East Porterville, CA
- Average snowfall days in May: 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 May /
Average sunshine in May
East Porterville, CA
- Average daylight in May: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 11h and 42min
The months with the most sunshine are June and July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in May
East Porterville, CA
- Average sunshine days in May: 26.8 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (20.3 days).
Average UV index in May
East Porterville, CA
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in May
East Porterville, CA
- Average cloud cover in May: 13
The month with the most cloud cover is March (Cloud cover 24).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in May
East Porterville, CA
- Average visibility in May: 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).





