June weather forecast
Dover, DE

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The public Archives building in Dover, Delaware, between two large trees
The public Archives building in Dover, Delaware, between two large trees

Weather in June

June is often revered as the gateway to the hottest part of the year in Dover, with temperature highs spiking to 78.8°F (26°C). The cloud coverage, however, recedes significantly to 32%, allowing the sun to further heat the city. Consequently, the UV index peaks at 6, a high for the year. Despite the intensity of the summer sun, rainfall remains a prominent feature with an average of 15.7 rainfall days. With the longest daylight hours from 14.9, June certainly provides ample opportunities to enjoy the outdoors in the city.

Temperature

A minor escalation in the average high-temperature is seen with the onset of June, moving from an agreeable 70.7°F (21.5°C) in May to a warm 78.8°F (26°C). Nighttime temperature experiences an average drop to an enjoyable 64.9°F (18.3°C) in June.

Humidity

In June, the average relative humidity in Dover is 78%.

Rainfall

In June, the rain falls for 15.7 days. Throughout June, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 152.3 rainfall days, and 26.3" (668mm) of precipitation is accumulated.

Snowfall

In Dover, snow does not fall in April through November.

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 8:22 pm. On the last day of June, sunrise is at 5:39 am and sunset at 8:32 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 value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In June, the maximum UV index of 6 translates into these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What is the usual temperature for Dover in June?

During June, Dover experiences an average high-temperature of 78.8°F (26°C) and a low-temperature of 64.9°F (18.3°C).

What is the average humidity in June in Dover?

In June, the average relative humidity in Dover is 78%.

How much does it rain in Dover in June?

In Dover, Delaware, in June, during 15.7 rainfall days, 2.64" (67mm) of precipitation is typically accumulated.

When it does not snow in Dover?

In Dover, snow does not fall in April through November.

When are the longest days in Dover?

The month with the longest days in Dover is June, with an average of 14h and 54min of daylight.

How many hours of daylight does Dover have in June?

The average day length in June is 14h and 53min.

When are sunrise and sunset in June in Dover?

In June, on the first day of the month, sunrise is at 5:37 am and sunset at 8:22 pm. On the last day of the month, in Dover, Delaware, sunrise is at 5:39 am and sunset at 8:32 pm EDT.

How many hours of sunshine does Dover have in June?

The average sunshine duration in June in Dover, Delaware, is 10.3h.

What are the months with the highest UV index in Dover?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in June in Dover?

The average daily maximum UV index in June is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Dover, DE

Average temperature in June - Dover, DE
  • Average high temperature in June: 78.8°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in June: 64.9°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

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Average pressure in June
Dover, DE

Average pressure in June - Dover, 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).

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Average wind speed in June
Dover, DE

Average wind speed in June - Dover, DE
  • Average wind speed in June: 7.6mph

The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in June
Dover, DE

Average humidity in June - Dover, DE
  • Average humidity in June: 78%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, March, April and November (74%).

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Average rainfall in June
Dover, DE

Average rainfall in June - Dover, DE
  • Average rainfall in June: 2.64"

The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is January (1.46").

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Average rainfall days in June
Dover, DE

Average rainfall days in June - Dover, DE
  • Average rainfall days in June: 15.7 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in June
Dover, DE

Average snowfall in June - Dover, DE
  • Average snowfall in June: 0"

The month with the highest snowfall is January (1.65").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in June
Dover, DE

Average snowfall days in June - Dover, DE
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in June /
Average sunshine in June
Dover, DE

Average daylight in June / Average sunshine in June - Dover, DE
  • Average daylight in June: 14h and 5min

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 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in June
Dover, DE

Average sunshine days in June - Dover, DE
  • Average sunshine days in June: 12.6 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (10.8 days).

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Average UV index in June
Dover, DE

Average UV index in June - Dover, 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).

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Average cloud cover in June
Dover, DE

Average cloud cover in June - Dover, DE
  • Average cloud cover in June: 32

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in June
Dover, DE

Average visibility in June - Dover, 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).

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Dover, Delaware, USA

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