May weather forecastLas Lomas, CA
May
Weather in May
The last month of the spring, May, is an agreeable month in Las Lomas, California, with an average temperature fluctuating between 68.2°F (20.1°C) and 47.8°F (8.8°C).Temperature
The dawn of May sees an average high-temperature of an agreeable 68.2°F (20.1°C), subtly contrasting with April's 64.9°F (18.3°C). Las Lomas temperatures generally rest at a low of 47.8°F (8.8°C) during the May nights.Humidity
The average relative humidity in May is 71%.Rainfall
In Las Lomas, in May, it is raining for 4.8 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, there are 68.3 rainfall days, and 11.38" (289mm) of precipitation is accumulated.Daylight
The average length of the day in May is 14h and 10min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:56 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:20 pm PDT.
Sunshine
The average sunshine in May is 11h.UV index
In May, the average daily maximum UV index in Las Lomas is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In May, the maximum UV index of 4 suggests these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Las Lomas, CA
- Average high temperature in May: 68.2°F
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (57.9°F).
- Average low temperature in May: 47.8°F
The month with the highest average low temperature is September (54.9°F).
The coldest month (with the lowest average low temperature) is February (43.3°F).
Average pressure in May
Las Lomas, CA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in May
Las Lomas, CA
- Average wind speed in May: 6mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest months (with the lowest average wind speed) are January, August, September, October and November (4.7mph).
Average humidity in May
Las Lomas, CA
- Average humidity in May: 71%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are September and October (65%).
Average rainfall in May
Las Lomas, CA
- Average rainfall in May: 0.51"
The wettest month (with the highest rainfall) is December (2.13").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Las Lomas, CA
- Average rainfall days in May: 4.8 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (0.8 days).
Average daylight in May /
Average sunshine in May
Las Lomas, CA
- Average daylight in May: 14h and 12min
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 42min).
- Average sunshine in May: 11h
The months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6h).
Average sunshine days in May
Las Lomas, CA
- Average sunshine days in May: 24.3 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (17.6 days).
Average UV index in May
Las Lomas, CA
- Average UV index in May: 4
The months with the highest UV index are April, June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in May
Las Lomas, CA
- Average cloud cover in May: 23
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
Las Lomas, 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).





