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 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
With the beginning of May, Princeton's average high-temperature sees an increase, transitioning from a cool 54.5°F (12.5°C) in April to an enjoyable 63.9°F (17.7°C). In May, the temperature sees a substantial plunge from daytime highs to a low average of 41.5°F (5.3°C).Humidity
In Princeton, the average relative humidity in May is 70%.Rainfall
In Princeton, in May, during 16.2 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Princeton, during the entire year, the rain falls for 143.2 days and collects up to 20.51" (521mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows in Princeton. During 0.3 snowfall days, in May, Princeton aggregates 0.08" (2mm) of snow. In Princeton, during the entire year, snow falls for 60.2 days and aggregates up to 47.24" (1200mm) of snow.Daylight
In May, the average length of the day is 15h and 5min.On the first day of May in Princeton, Idaho, sunrise is at 5:30 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 4:56 am and sunset at 8:33 pm PDT.
Sunshine
In May, the average sunshine in Princeton is 10.1h.UV index
In Princeton, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 during May translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Princeton?
What is the average humidity in May in Princeton?
How much does it rain in Princeton in May?
What is the last month it snows in Princeton?
What is the average length of the day in May in Princeton?
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, ID
- Average high temperature in May: 63.9°F
The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in May: 41.5°F
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in May
Princeton, ID
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
Princeton, ID
- Average wind speed in May: 5.1mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity in May
Princeton, ID
- Average humidity in May: 70%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).
Average rainfall in May
Princeton, ID
- Average rainfall in May: 2.28"
The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in May
Princeton, ID
- Average rainfall days in May: 16.2 days
The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).
Average snowfall in May
Princeton, ID
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Princeton, ID
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Princeton, ID
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in May: 10h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).
Average sunshine days in May
Princeton, ID
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in May
Princeton, ID
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in May
Princeton, ID
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in May
Princeton, ID
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Princeton, Idaho, USA
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