June weather forecastClayton, DE
June
Weather in June
The advent of summer in June ushers in a marked increase in temperatures, promising balmy days in Clayton, Delaware. June compares favorably to May, with more daylight hours and dominant sunshine, signaling longer, sun-drenched days. A trend towards dryer weather is noteworthy, given the lowered cumulative rainfall of 3.19" (81mm). The temperatures peak at a high of 79.3°F (26.3°C), resulting in increased outdoor activity. Despite the heat, wind speeds see a moderate drop, adding to the stillness of summer nights.Temperature
June's arrival signals a modest temperature shift, moving from a pleasant 71.2°F (21.8°C) in May to a moderately hot 79.3°F (26.3°C). Clayton usually reports an average low-temperature of 64°F (17.8°C) during the month of June.Humidity
In June, the average relative humidity is 78%.Rainfall
In Clayton, in June, during 17.4 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. Throughout the year, there are 169.2 rainfall days, and 34.96" (888mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Clayton.Daylight
June has the longest days of the year, with an average of 14h and 54min of daylight.On the first day of the month, sunrise is at 5:37 am and sunset at 8:23 pm. On the last day of June, sunrise is at 5:39 am and sunset at 8:33 pm EDT.
Sunshine
The average sunshine in June is 10.3h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 during June translates into the following directions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. 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. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Clayton, DE
- Average high temperature in June: 79.3°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 (39.2°F).
- Average low temperature in June: 64°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in June
Clayton, DE
- Average pressure in June: 29.94"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in June
Clayton, DE
- Average wind speed in June: 7.1mph
The windiest months (with the highest average wind speed) are February and March (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in June
Clayton, DE
- Average humidity in June: 78%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in June
Clayton, DE
- Average rainfall in June: 3.19"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in June
Clayton, DE
- Average rainfall days in June: 17.4 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in June
Clayton, DE
- Average snowfall in June: 0"
The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Clayton, DE
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Clayton, DE
- Average daylight in June: 14h and 54min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in June: 10h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in June
Clayton, DE
- Average sunshine days in June: 10.6 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in June
Clayton, DE
- Average UV index in June: 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 and December (UV index 2).
Average cloud cover in June
Clayton, DE
- Average cloud cover in June: 32
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in June
Clayton, DE
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





