May weather forecastPleasanton, CA
May
Weather in May
The last month of the spring, May, is an agreeable month in Pleasanton, California, with an average temperature fluctuating between 48.9°F (9.4°C) and 72.7°F (22.6°C).Temperature
May's climate shows a minor adjustment in average high-temperatures to a pleasant 72.7°F (22.6°C) from April's 67.5°F (19.7°C). Pleasanton's nighttime average of 48.9°F (9.4°C) during May reflects a substantial decrease from the daytime temperature.Humidity
In May, the average relative humidity is 64%.Rainfall
In May, the rain falls for 4.6 days. Throughout May, 0.47" (12mm) of precipitation is accumulated. In Pleasanton, during the entire year, the rain falls for 70.2 days and collects up to 10.98" (279mm) of precipitation.Daylight
The average length of the day in May is 14h and 13min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:47 am and sunset at 8:23 pm PDT.
Sunshine
In May, the average sunshine is 11.1h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In May, a daily UV index of 5 turns into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. 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
Pleasanton, CA
- Average high temperature in May: 72.7°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in May
Pleasanton, CA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in May
Pleasanton, CA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in May
Pleasanton, CA
- Average humidity in May: 64%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (56%).
Average rainfall in May
Pleasanton, CA
- Average rainfall in May: 0.47"
The wettest month (with the highest rainfall) is February (2.05").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Pleasanton, CA
- Average rainfall days in May: 4.6 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (0.9 days).
Average daylight in May /
Average sunshine in May
Pleasanton, CA
- Average daylight in May: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 11h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in May
Pleasanton, CA
- Average sunshine days in May: 25.6 days
The month with the most sunshine days is August (29 days).
The month with the least sunshine days is March (17.6 days).
Average UV index in May
Pleasanton, CA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Pleasanton, CA
- Average cloud cover in May: 20
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in May
Pleasanton, 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).
