June weather forecastDelaware, NJ
June
Weather in June
June, the first month of the summer in Delaware, is a moderately hot month, with an average temperature fluctuating between 76.5°F (24.7°C) and 55.6°F (13.1°C).Temperature
Delaware in June observes a minor temperature shift, with average high-temperatures adjusting from a pleasant 68.2°F (20.1°C) in May to a warm 76.5°F (24.7°C). Delaware records an average temperature drop to a moderate 55.6°F (13.1°C) in June.Humidity
The average relative humidity in June is 78%.Rainfall
In Delaware, in June, during 16.1 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, in Delaware, there are 165.9 rainfall days, and 31.61" (803mm) of precipitation is accumulated.Snowfall
In Delaware, New Jersey, snow does not fall in June through September.Daylight
With an average of 15h and 6min of daylight, June has the longest days of the year in Delaware, New Jersey.On the first day of the month, sunrise is at 5:30 am and sunset at 8:26 pm. On the last day of June, sunrise is at 5:32 am and sunset at 8:36 pm EDT.
Sunshine
In Delaware, the average sunshine in June is 9.5h.UV index
June is the month with the highest UV index in Delaware, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 6 in June transforms into this advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Delaware, NJ
- Average high temperature in June: 76.5°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in June: 55.6°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in June
Delaware, NJ
- Average pressure in June: 29.93"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 June
Delaware, NJ
- Average wind speed in June: 5.7mph
The windiest months (with the highest average wind speed) are January, February and March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in June
Delaware, NJ
- Average humidity in June: 78%
The months with the highest relative humidity are February, October and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in June
Delaware, NJ
- Average rainfall in June: 2.68"
The wettest month (with the highest rainfall) is July (3.11").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in June
Delaware, NJ
- Average rainfall days in June: 16.1 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in June
Delaware, NJ
- Average snowfall in June: 0"
The month with the highest snowfall is February (5.67").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Delaware, NJ
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Delaware, NJ
- Average daylight in June: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in June: 9h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in June
Delaware, NJ
- Average sunshine days in June: 11.1 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in June
Delaware, NJ
- Average UV index in June: 6
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in June
Delaware, NJ
- Average cloud cover in June: 41
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in June
Delaware, NJ
- Average visibility in June: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).





