May weather forecastNew Brunswick, NJ
May
Weather in May
May’s arrival in New Brunswick heralds the genuine start of the warmer season. The temperature consistently ascends while rainfall becomes frequent but less intense compared to prior months, reducing the possibility of sudden showers. Sunshine dominates most of the day, outlasting the clouds. Relatively less windy days offer added comfort for outdoor enthusiasts and picnic seekers. With temperatures soaring from 53.2°F (11.8°C) to 69.6°F (20.9°C) and rainfall as high as 2.8" (71mm); the city not only escapes the clutches of spring but also begins teetering on the brink of summer, directly contrasting the weather conditions experienced only four months ago in January.Temperature
May's arrival signals a temperature shift, moving from a moderate 59.5°F (15.3°C) in April to a pleasant 69.6°F (20.9°C). Throughout May, an average nighttime temperature of 53.2°F (11.8°C) is experienced.Humidity
The average relative humidity in May is 76%.Rainfall
In New Brunswick, in May, it is raining for 16.3 days, with typically 2.8" (71mm) of accumulated precipitation. Throughout the year, there are 149.4 rainfall days, and 28.43" (722mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, New Brunswick aggregates 0.2" (5mm) of snow. In New Brunswick, during the entire year, snow falls for 18.3 days and aggregates up to 8.46" (215mm) of snow.Daylight
The average length of the day in May is 14h and 27min.On the first day of the month, sunrise is at 5:55 am and sunset at 7:53 pm. On the last day of May, sunrise is at 5:29 am and sunset at 8:21 pm EDT.
Sunshine
In New Brunswick, the average sunshine in May is 8.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 6 in May transforms into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
New Brunswick, NJ
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in May: 53.2°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in May
New Brunswick, 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
New Brunswick, NJ
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in May
New Brunswick, NJ
- Average humidity in May: 76%
The months with the highest relative humidity are February, October and December (77%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in May
New Brunswick, NJ
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in May
New Brunswick, NJ
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in May
New Brunswick, NJ
- Average snowfall in May: 0.2"
The month with the highest snowfall is March (3.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
New Brunswick, NJ
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.4 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
New Brunswick, NJ
- Average daylight in May: 14h and 24min
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 18min).
- Average sunshine in May: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
New Brunswick, NJ
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in May
New Brunswick, NJ
- Average UV index in May: 6
The months with the highest UV index are May, 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
New Brunswick, NJ
- Average cloud cover in May: 47
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
New Brunswick, 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).
