May weather forecastAlpine, CA
May
Weather in May
The last month of the spring, May, is a warm month in Alpine, California, with an average temperature varying between 51.3°F (10.7°C) and 73.6°F (23.1°C).Temperature
The introduction of May sees an average high-temperature of a warm 73.6°F (23.1°C), hardly deviating from April. A notable decrease from the day's highest temperature marks May, culminating in an average low of 51.3°F (10.7°C).Humidity
The most humid month is May, with an average relative humidity of 62%.Rainfall
In Alpine, in May, during 4.2 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. Throughout the year, there are 62 rainfall days, and 6.38" (162mm) of precipitation is accumulated.Daylight
In Alpine, the average length of the day in May is 13h and 52min.On the first day of May, sunrise is at 5:58 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 7:50 pm PDT.
Sunshine
The average sunshine in May is 11.5h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 5 during May translates into the following directions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Alpine, CA
- Average high temperature in May: 73.6°F
The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is December (61.3°F).
- Average low temperature in May: 51.3°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (44.2°F).
Average pressure in May
Alpine, CA
- Average pressure in May: 29.9"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Alpine, CA
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).
Average humidity in May
Alpine, CA
- Average humidity in May: 62%
The month with the highest relative humidity is May (62%).
The month with the lowest relative humidity is November (51%).
Average rainfall in May
Alpine, CA
- Average rainfall in May: 0.24"
The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in May
Alpine, CA
- Average rainfall days in May: 4.2 days
The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.5 days).
Average daylight in May /
Average sunshine in May
Alpine, 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: 11h and 30min
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 42min).
Average sunshine days in May
Alpine, CA
- Average sunshine days in May: 25.2 days
The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.4 days).
Average UV index in May
Alpine, 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 November and December (UV index 3).
Average cloud cover in May
Alpine, CA
- Average cloud cover in May: 15
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in May
Alpine, 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).





