June weather forecast and climate
Summit, NJ

June, the first month of the summer, in Summit, is a moderately hot month, with average temperature ranging between min 59°F (15°C) and max 77.5°F (25.3°C).

Temperature

In June, the average high-temperature marginally rises, from an agreeable 69.1°F (20.6°C) in May, to a warm 77.5°F (25.3°C). In June, the average low-temperature is 59°F (15°C).

Humidity

In June, the average relative humidity in Summit is 77%.

Rainfall

In Summit, during June, the rain falls for 17.3 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, in Summit, there are 164.2 rainfall days, and 30.67" (779mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Summit.

Daylight

June has the longest days of the year in Summit, with an average of 15.1h of daylight.

Sunshine

The average sunshine in June is 9.6h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Summit. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. 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 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.

What is the temperature in June in Summit?

In Summit, New Jersey, in June, the average high-temperature is 77.5°F (25.3°C), and the average low-temperature is 59°F (15°C).

What is the average humidity in June in Summit?

In June, the average relative humidity is 77%.

How much does it rain in Summit in June?

In Summit, in June, during 17.3 rainfall days, 2.64" (67mm) of precipitation is typically accumulated.

Does it snow in Summit in June?

In June, in Summit, New Jersey, it doesn't snow. May is the latest month when it typically snows.

When it does not snow in Summit?

In Summit snow does not fall in June through September.

When are the longest days in Summit?

The month with the longest days in Summit is June, with an average of 15.1h of daylight.

What is the average length of the day in June in Summit?

In June, the average length of the day is 15.1h.

How long on average sun shines in June in Summit?

In June, the average sunshine in Summit, New Jersey, is 9.6h.

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

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

What is the UV index reading in June in Summit?

The average daily maximum UV index in June in Summit is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in June - Summit, NJ
  • Average high temperature in June: 77.5°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in June: 59°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in June - Summit, NJ
  • Average pressure in June: 29.93"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

Average wind speed in June - Summit, NJ
  • Average wind speed in June: 6.2mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in June - Summit, NJ
  • Average humidity in June: 77%

Months with the highest relative humidity are February and December (80%).
Months with the lowest relative humidity are April and August (74%).

Average rainfall in June - Summit, NJ
  • Average rainfall in June: 2.64"

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in June - Summit, NJ
  • Average rainfall days in June: 17.3 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in June - Summit, NJ
  • Average snowfall in June: 0"

The month with the highest snowfall is March (3.5").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in June - Summit, NJ
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (7.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in June / Average sunshine in June - Summit, NJ
  • Average daylight in June: 15.1h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in June: 9.6h

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days in June - Summit, NJ
  • Average sunshine days in June: 10.5 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (10.5 days).

Average UV index in June - Summit, NJ
  • Average UV index in June: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in June - Summit, NJ
  • Average cloud cover in June: 39

Months with the most cloud cover are February and March (Cloud cover 49).
Months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in June - Summit, NJ
  • Average visibility in June: 6mi

Months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).