Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May brings an average high-temperature of a warm 76.5°F (24.7°C), closely following the temperature pattern of April. San Bernardino's daily high temperature significantly diverges from the consistently recorded temperature low averaging a fresh 52.7°F (11.5°C) in May.Humidity
The average relative humidity in May in San Bernardino is 52%.Rainfall
In San Bernardino, during May, the rain falls for 3.6 days and regularly aggregates up to 0.16" (4mm) of precipitation. Throughout the year, there are 46.6 rainfall days, and 6.18" (157mm) of precipitation is accumulated.Snowfall
In San Bernardino, snow does not fall in January, March through December.Daylight
In May, the average length of the day is 13h and 57min.On the first day of the month, sunrise is at 5:58 am and sunset at 7:33 pm. On the last day of May, in San Bernardino, sunrise is at 5:38 am and sunset at 7:55 pm PDT.
Sunshine
In San Bernardino, California, the average sunshine in May is 11.8h.UV index
The average daily maximum UV index in May in San Bernardino is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In May, the maximum UV index of 6 suggests these recommendations:
Shield from overexposure. Defense against sun-related harm is required. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. 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
What are May temperatures in San Bernardino?
What is the average humidity in May in San Bernardino?
How many days does it rain in May in San Bernardino?
When it does not snow in San Bernardino?
How many hours of daylight does San Bernardino have in May?
When is the sunrise / sunset in May in San Bernardino?
How long on average sun shines in May in San Bernardino?
What is the UV index reading in May in San Bernardino?
Average temperature in May
San Bernardino, CA
- Average high temperature in May: 76.5°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is December (59.9°F).
- Average low temperature in May: 52.7°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 (43.5°F).
Average pressure in May
San Bernardino, CA
- Average pressure in May: 29.89"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
San Bernardino, CA
- Average wind speed in May: 6mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in May
San Bernardino, CA
- Average humidity in May: 52%
The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is August (38%).
Average rainfall in May
San Bernardino, CA
- Average rainfall in May: 0.16"
The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
San Bernardino, CA
- Average rainfall days in May: 3.6 days
The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in May
San Bernardino, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.1 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
San Bernardino, CA
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 11h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in May
San Bernardino, CA
- Average sunshine days in May: 26.1 days
The months with the most sunshine days are June and October (27.9 days).
The month with the least sunshine days is February (21.7 days).
Average UV index in May
San Bernardino, CA
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
San Bernardino, CA
- Average cloud cover in May: 12
The months with the most cloud cover are February and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in May
San Bernardino, 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).
San Bernardino, California, USA
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