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 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
With May's advent, Stanford sees an average high-temperature of an agreeable 68.2°F (20.1°C), subtly shifted from April's 64.9°F (18.3°C). During the nights in May, an average low-temperature of 49.6°F (9.8°C) is observed.Humidity
In Stanford, California, the average relative humidity in May is 69%.Rainfall
In May, in Stanford, the rain falls for 4.4 days. Throughout May, 0.47" (12mm) of precipitation is accumulated. In Stanford, during the entire year, the rain falls for 63.3 days and collects up to 9.53" (242mm) of precipitation.Daylight
The average length of the day in May is 14h and 12min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:23 pm PDT.
Sunshine
In May, the average sunshine in Stanford, California, is 10.9h.UV index
The months with the highest UV index in Stanford are April through October, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 suggests this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Stanford?
What is the average humidity in May in Stanford?
How much does it rain in Stanford in May?
How many hours of daylight does Stanford have in May?
When are sunrise and sunset in May in Stanford?
How many hours of sunshine does Stanford have in May?
What is the month with the highest UV index in Stanford?
What is the UV index reading in May in Stanford?
Average temperature in May
Stanford, CA
- Average high temperature in May: 68.2°F
The warmest months (with the highest average high temperature) are July and August (77.5°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is August (57°F).
The coldest months (with the lowest average low temperature) are January and February (45.1°F).
Average pressure in May
Stanford, CA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).
Average wind speed in May
Stanford, CA
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are April and May (6.5mph).
The calmest months (with the lowest average wind speed) are September and October (4.9mph).
Average humidity in May
Stanford, CA
- Average humidity in May: 69%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are September and October (65%).
Average rainfall in May
Stanford, CA
- Average rainfall in May: 0.47"
The wettest month (with the highest rainfall) is February (2.01").
The driest month (with the least rainfall) is July (0").
Average rainfall days in May
Stanford, CA
- Average rainfall days in May: 4.4 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.6 days).
Average daylight in May /
Average sunshine in May
Stanford, CA
- Average daylight in May: 14h and 1min
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: 10h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in May
Stanford, CA
- Average sunshine days in May: 25.8 days
The month with the most sunshine days is July (30.2 days).
The month with the least sunshine days is March (18 days).
Average UV index in May
Stanford, CA
- Average UV index in May: 5
The months with the highest UV index are April, May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in May
Stanford, CA
- Average cloud cover in May: 23
The months with the most cloud cover are March and December (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in May
Stanford, 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).
Stanford, California, USA
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