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
As Princeton Junction transitions into May, the average high-temperature is observed to rise from a refreshing 60.4°F (15.8°C) in April to an agreeable 70.5°F (21.4°C). In Princeton Junction, May is marked by an average low-temperature of 53.2°F (11.8°C).Humidity
The average relative humidity in May in Princeton Junction is 78%.Rainfall
In May, the rain falls for 12.6 days. Throughout May, 1.22" (31mm) of precipitation is accumulated. In Princeton Junction, during the entire year, the rain falls for 119.3 days and collects up to 12.72" (323mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Princeton Junction. May is the last month it regularly snows. During 0.1 snowfall days, in May, Princeton Junction aggregates 0.2" (5mm) of snow. In Princeton Junction, during the entire year, snow falls for 16.4 days and aggregates up to 4.41" (112mm) of snow.Daylight
In May, the average length of the day is 14h and 26min.On the first day of the month, sunrise is at 5:56 am and sunset at 7:54 pm. On the last day of May, sunrise is at 5:30 am and sunset at 8:21 pm EDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
In Princeton Junction, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In May, the UV index of 5 transforms into the following advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May in Princeton Junction?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Princeton Junction have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Princeton Junction have in May?
What is the UV index intensity in May?
Average temperature in May
Princeton Junction, NJ
- Average high temperature in May: 70.5°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in May: 53.2°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Princeton Junction, NJ
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Princeton Junction, NJ
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in May
Princeton Junction, NJ
- Average humidity in May: 78%
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Princeton Junction, NJ
- Average rainfall in May: 1.22"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in May
Princeton Junction, NJ
- Average rainfall days in May: 12.6 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in May
Princeton Junction, NJ
- Average snowfall in May: 0.2"
The month with the highest snowfall is March (1.42").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Princeton Junction, NJ
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Princeton Junction, NJ
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in May
Princeton Junction, NJ
- Average sunshine days in May: 15 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in May
Princeton Junction, NJ
- 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, March, November and December (UV index 2).
Average cloud cover in May
Princeton Junction, NJ
- Average cloud cover in May: 46
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in May
Princeton Junction, NJ
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Princeton Junction, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location