May weather forecastSpring Valley, CA
May
Weather in May
The last month of the spring, May, is another pleasant month in Spring Valley, California, with an average temperature ranging between max 71.1°F (21.7°C) and min 54.5°F (12.5°C).Temperature
As May takes its course, Spring Valley's average high-temperature registers at a still agreeable 71.1°F (21.7°C), closely aligning with the preceding month. An average low-temperature of 54.5°F (12.5°C) is expected during May.Humidity
The most humid month is May, with an average relative humidity of 67%.Rainfall
In Spring Valley, California, during May, the rain falls for 3 days and regularly aggregates up to 0.2" (5mm) of precipitation. In Spring Valley, during the entire year, the rain falls for 33 days and collects up to 2.52" (64mm) of precipitation.Daylight
In Spring Valley, the average length of the day in May is 13h and 52min.On the first day of the month, sunrise is at 5:59 am and sunset at 7:30 pm. On the last day of May, in Spring Valley, sunrise is at 5:40 am and sunset at 7:50 pm PDT.
Sunshine
In May, the average sunshine is 10.7h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Spring Valley, CA
- Average high temperature in May: 71.1°F
The warmest month (with the highest average high temperature) is August (82.9°F).
The month with the lowest average high temperature is December (64.4°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).
Average pressure in May
Spring Valley, CA
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
Spring Valley, CA
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is April (5.6mph).
The calmest month (with the lowest average wind speed) is October (4.5mph).
Average humidity in May
Spring Valley, CA
- Average humidity in May: 67%
The month with the highest relative humidity is May (67%).
The month with the lowest relative humidity is November (54%).
Average rainfall in May
Spring Valley, CA
- Average rainfall in May: 0.2"
The wettest month (with the highest rainfall) is February (0.55").
The driest months (with the least rainfall) are June, July and October (0.04").
Average rainfall days in May
Spring Valley, CA
- Average rainfall days in May: 3 days
The month with the highest number of rainy days is March (5.3 days).
The month with the least rainy days is June (0.8 days).
Average daylight in May /
Average sunshine in May
Spring Valley, CA
- Average daylight in May: 13h and 54min
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 May: 10h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).
Average sunshine days in May
Spring Valley, CA
- Average sunshine days in May: 26.3 days
The month with the most sunshine days is October (28.9 days).
The month with the least sunshine days is February (23.4 days).
Average UV index in May
Spring Valley, CA
- Average UV index in May: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in May
Spring Valley, CA
- Average cloud cover in May: 22
The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in May
Spring Valley, 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).
