May weather forecastFort Rosecrans, CA
May
Weather in May
The last month of the spring, May, is another comfortable month in Fort Rosecrans, California, with temperature in the range of an average low of 57°F (13.9°C) and an average high of 65.8°F (18.8°C).Temperature
The dawn of May sees an average high-temperature of a still enjoyable 65.8°F (18.8°C), subtly contrasting with April's 65.1°F (18.4°C). Throughout May, a modest shift from daytime highs is anticipated in Fort Rosecrans, with an average low-temperature of 57°F (13.9°C).Humidity
In Fort Rosecrans, the average relative humidity in May is 74%.Rainfall
In Fort Rosecrans, during May, the rain falls for 5.5 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Fort Rosecrans, during the entire year, the rain falls for 64.5 days and collects up to 9.02" (229mm) of precipitation.Daylight
In Fort Rosecrans, the average length of the day in May is 13h and 51min.On the first day of May, sunrise is at 6:00 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 7:51 pm PDT.
Sunshine
The average sunshine in May is 10.8h.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 the average person.Note: The maximum UV index of 5 during May leads to these instructions:
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. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Fort Rosecrans, CA
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is August (75.6°F).
The months with the lowest average high temperature are February and December (63°F).
- Average low temperature in May: 57°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is February (53.1°F).
Average pressure in May
Fort Rosecrans, CA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in May
Fort Rosecrans, CA
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is October (5.5mph).
Average humidity in May
Fort Rosecrans, CA
- Average humidity in May: 74%
The month with the highest relative humidity is June (76%).
The months with the lowest relative humidity are January and November (61%).
Average rainfall in May
Fort Rosecrans, CA
- Average rainfall in May: 0.43"
The wettest month (with the highest rainfall) is December (1.81").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in May
Fort Rosecrans, CA
- Average rainfall days in May: 5.5 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is June (2.8 days).
Average daylight in May /
Average sunshine in May
Fort Rosecrans, 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 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in May
Fort Rosecrans, CA
- Average sunshine days in May: 22.3 days
The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is February (20.1 days).
Average UV index in May
Fort Rosecrans, CA
- Average UV index in May: 5
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in May
Fort Rosecrans, CA
- Average cloud cover in May: 24
The months with the most cloud cover are March, May and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in May
Fort Rosecrans, 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).





