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 the onset of May, the average high-temperature subtly transitions from a pleasant 71.6°F (22°C) in April to a warm 80.4°F (26.9°C). May in Princeton, marked by an average low-temperature of 54.1°F (12.3°C), indicates a large temperature drop from the daytime peak.Humidity
The average relative humidity in May in Princeton is 50%.Rainfall
In Princeton, during May, the rain falls for 4.7 days and regularly aggregates up to 0.35" (9mm) of precipitation. In Princeton, California, during the entire year, the rain falls for 58.9 days and collects up to 6.89" (175mm) of precipitation.Daylight
In Princeton, the average length of the day in May is 14h and 22min.On the first day of the month, sunrise is at 6:07 am and sunset at 8:02 pm. On the last day of May, in Princeton, California, sunrise is at 5:43 am and sunset at 8:28 pm PDT.
Sunshine
In May, the average sunshine in Princeton is 11h.UV index
In Princeton, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: In May, the UV index of 6 transforms into the following advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the temperature in May in Princeton?
What is the average humidity in May in Princeton?
How much does it rain in Princeton in May?
How many hours of daylight does Princeton have in May?
What time are sunrise and sunset in May in Princeton?
How many hours of sunshine does Princeton have in May?
What is the UV index intensity in May in Princeton?
Average temperature in May
Princeton, CA
- Average high temperature in May: 80.4°F
The warmest month (with the highest average high temperature) is July (98.8°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).
Average pressure in May
Princeton, CA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Princeton, CA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Princeton, CA
- Average humidity in May: 50%
The month with the highest relative humidity is March (71%).
The month with the lowest relative humidity is September (36%).
Average rainfall in May
Princeton, CA
- Average rainfall in May: 0.35"
The wettest months (with the highest rainfall) are February and December (1.3").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Princeton, CA
- Average rainfall days in May: 4.7 days
The month with the highest number of rainy days is March (10.4 days).
The month with the least rainy days is July (1 days).
Average daylight in May /
Average sunshine in May
Princeton, CA
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 11h and 0min
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 48min).
Average sunshine days in May
Princeton, CA
- Average sunshine days in May: 25.4 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (19.7 days).
Average UV index in May
Princeton, CA
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in May
Princeton, CA
- Average cloud cover in May: 20
The months with the most cloud cover are March and December (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in May
Princeton, 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).
Princeton, California, USA
Weather forecast for your location
2. Allow the app to use your location
