June weather forecast
New Castle, DE

Weather in June

The first month of the summer, June, is a warm month in New Castle, Delaware, with an average temperature ranging between max 80.1°F (26.7°C) and min 63.1°F (17.3°C).

Temperature

In June, the average high-temperature marginally rises from a pleasant 72°F (22.2°C) in May to a moderately hot 80.1°F (26.7°C). In New Castle, in June, the average low-temperature is 63.1°F (17.3°C).

Humidity

In June, the average relative humidity in New Castle is 76%.

Rainfall

In New Castle, Delaware, during June, the rain falls for 14.3 days and regularly aggregates up to 2.01" (51mm) of precipitation. In New Castle, Delaware, during the entire year, the rain falls for 143.2 days and collects up to 21.89" (556mm) of precipitation.

Snowfall

May through October are months without snowfall.

Ocean temperature

In New Castle, the average water temperature is 66.6°F (19.2°C).
Note: For swimming, a surface water temperature of 66.6°F (19.2°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

With an average of 14h and 56min of daylight, June has the longest days of the year in New Castle.
On the first day of the month, sunrise is at 5:36 am and sunset at 8:23 pm. On the last day of June, in New Castle, sunrise is at 5:37 am and sunset at 8:34 pm EDT.

Sunshine

In New Castle, the average sunshine in June is 10.1h.

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 hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 6 in June transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in June in New Castle?

In New Castle, Delaware, the average relative humidity in June is 76%.

How many days does it rain in June in New Castle?

In June, in New Castle, Delaware, the rain falls for 14.3 days. Throughout June, 2.01" (51mm) of precipitation is accumulated.

When it does not snow in New Castle?

May through October are months without snowfall in New Castle.

What is the ocean temperature in June in New Castle?

In New Castle, in June, the average water temperature is 66.6°F (19.2°C). For swimming, a surface water temperature of 66.6°F (19.2°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

When are the longest days in New Castle?

The month with the longest days is June, with an average of 14h and 56min of daylight.

What is the average length of the day in June in New Castle?

In New Castle, Delaware, the average day length in June is 14h and 56min.

What time are sunrise and sunset in June in New Castle?

In June, on the first day of the month, sunrise is at 5:36 am and sunset at 8:23 pm. On the last day of the month, in New Castle, sunrise is at 5:37 am and sunset at 8:34 pm EDT.

How many hours of sunshine does New Castle have in June?

In June, the average sunshine duration in New Castle, Delaware, is 10.1h.

What are the months with the highest UV index in New Castle?

May through August, with an average maximum UV index of 6, are months with the highest UV index in New Castle, Delaware.

How high is the UV index in June in New Castle?

In New Castle, Delaware, the average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
New Castle, DE

Average temperature in June - New Castle, DE
  • Average high temperature in June: 80.1°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in June: 63.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in June
New Castle, DE

Average pressure in June - New Castle, DE
  • Average pressure in June: 29.94"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in June
New Castle, DE

Average wind speed in June - New Castle, DE
  • Average wind speed in June: 6.5mph

The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in June
New Castle, DE

Average humidity in June - New Castle, DE
  • Average humidity in June: 76%

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in June
New Castle, DE

Average rainfall in June - New Castle, DE
  • Average rainfall in June: 2.01"

The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is January (1.38").

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Average rainfall days in June
New Castle, DE

Average rainfall days in June - New Castle, DE
  • Average rainfall days in June: 14.3 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in June
New Castle, DE

Average snowfall in June - New Castle, DE
  • Average snowfall in June: 0"

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in June
New Castle, DE

Average snowfall days in June - New Castle, DE
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in June
New Castle, DE

Average sea temperature in June - New Castle, DE
  • Average sea temperature in June: 66.6°F

The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (40.9°F).

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Average daylight in June /
Average sunshine in June
New Castle, DE

Average daylight in June / Average sunshine in June - New Castle, DE
  • Average daylight in June: 14h and 56min

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

  • Average sunshine in June: 10h and 6min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in June
New Castle, DE

Average sunshine days in June - New Castle, DE
  • Average sunshine days in June: 13 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in June
New Castle, DE

Average UV index in June - New Castle, 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, February, November and December (UV index 2).

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Average cloud cover in June
New Castle, DE

Average cloud cover in June - New Castle, DE
  • Average cloud cover in June: 35

The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in June
New Castle, DE

Average visibility in June - New Castle, 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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