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 arrival of May, the average high-temperature transitions from a mild 59.5°F (15.3°C) in April to a pleasant 70.2°F (21.2°C). Throughout May nights, Dunellen experiences a consistent temperature average of 52.5°F (11.4°C).Humidity
The average relative humidity in May is 77%.Rainfall
In May, the rain falls for 17.5 days. Throughout May, 2.99" (76mm) of precipitation is accumulated. Throughout the year, there are 155.4 rainfall days, and 31.18" (792mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Dunellen aggregates 0.24" (6mm) of snow. In Dunellen, during the entire year, snow falls for 26.7 days and aggregates up to 12.68" (322mm) of snow.Daylight
In May, the average length of the day is 14h and 28min.On the first day of the month, sunrise is at 5:55 am and sunset at 7:54 pm. On the last day of May, sunrise is at 5:29 am and sunset at 8:22 pm EDT.
Sunshine
In Dunellen, the average sunshine in May is 8.3h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 5 in May leads to these guidelines:
Take precautions - Protection against sunburn is recommended. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Dunellen have in May?
When is the sunrise / sunset in May in Dunellen?
How many hours of sunshine does Dunellen have in May?
What is the UV index intensity in May?
Average temperature in May
Dunellen, NJ
- Average high temperature in May: 70.2°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in May: 52.5°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in May
Dunellen, 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
Dunellen, NJ
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
Dunellen, NJ
- Average humidity in May: 77%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in May
Dunellen, NJ
- Average rainfall in May: 2.99"
The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in May
Dunellen, NJ
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in May
Dunellen, NJ
- Average snowfall in May: 0.24"
The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Dunellen, NJ
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Dunellen, NJ
- Average daylight in May: 14h and 3min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Dunellen, NJ
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in May
Dunellen, 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
Dunellen, 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 34).
Average visibility in May
Dunellen, NJ
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Dunellen, New Jersey, USA
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