July weather forecast and climate
Dover, NJ

July, the same as June, is a moderately hot summer month in Dover, New Jersey, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 82.9°F (28.3°C).

Temperature

July is the warmest month, with an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 64°F (17.8°C).

Heat index

In July, the average heat index is calculated to a tropical 90.3°F (32.4°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, clothing, metabolic differences, and differences in body mass, height, and shape affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in July is 77%.

Rainfall

The month with the most rainfall is July when the rain falls for 9.5 days and typically aggregates up to 0.79" (20mm) of precipitation.

Snowfall

In Dover snow does not fall in June through September.

Daylight

In Dover, the average length of the day in July is 14.8h.

Sunshine

The month with the most sunshine in Dover is July, with an average of 10.2h of sunshine.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the warmest month in Dover?

With an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 64°F (17.8°C), July is the warmest month in Dover.

What is the temperature in July in Dover?

In July, the average high-temperature is 82.9°F (28.3°C), and the average low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines air temperature and relative humidity, in July is appraised at 90.3°F (32.4°C).

What is the average humidity in July in Dover?

In Dover, New Jersey, the average relative humidity in July is 77%.

How many days does it rain in July in Dover?

In Dover, in July, it is raining for 9.5 days, with typically 0.79" (20mm) of accumulated precipitation.

What is the rainiest month in Dover?

July is the month with the most rainfall. Rain falls for 9.5 days and accumulates 0.79" (20mm) of precipitation.

When it does not snow in Dover?

In Dover, New Jersey, snow does not fall in June through September.

What is the average length of the day in July in Dover?

The average length of the day in July in Dover is 14.8h.

What month has the most sunshine in Dover?

With an average of 10.2h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July in Dover?

In July, the average sunshine is 10.2h.

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

June and July, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in July in Dover?

In Dover, New Jersey, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.
Average temperature in July - Dover, NJ
  • Average high temperature in July: 28.3°C

The warmest month (with the highest average high temperature) is July (28.3°C).
The month with the lowest average high temperature is January (1.3°C).

  • Average low temperature in July: 17.8°C

The month with the highest average low temperature is July (17.8°C).
The coldest month (with the lowest average low temperature) is January (-6.2°C).

Average pressure in July - Dover, NJ
  • Average pressure in July: 1014.5mbar

The month with the highest atmospheric pressure is November (1019.6mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in July - Dover, NJ
  • Average wind speed in July: 8.3km/h

The windiest month (with the highest average wind speed) is March (13.2km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).

Average humidity in July - Dover, NJ
  • Average humidity in July: 77%

Months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (75%).

Average rainfall in July - Dover, NJ
  • Average rainfall in July: 20mm

The wettest month (with the highest rainfall) is July (20mm).
The driest month (with the least rainfall) is September (4mm).

Average rainfall days in July - Dover, NJ
  • Average rainfall days in July: 9.5 days

The month with the highest number of rainy days is July (9.5 days).
The month with the least rainy days is February (4 days).

Average snowfall in July - Dover, NJ
  • Average snowfall in July: 0mm

The month with the highest snowfall is March (20mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in July - Dover, NJ
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (5.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July / Average sunshine in July - Dover, NJ
  • Average daylight in July: 14.8h

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 July: 10.2h

The month with the most sunshine is July (Average sunshine: 10.2h).
The month with the least sunshine is February (Average sunshine: 4.4h).

Average sunshine days in July - Dover, NJ
  • Average sunshine days in July: 18.3 days

The month with the most sunshine days is November (24.5 days).
The month with the least sunshine days is July (18.3 days).

Average UV index in July - Dover, NJ
  • Average UV index in July: 6

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

Average cloud cover in July - Dover, NJ
  • Average cloud cover in July: 36

Months with the most cloud cover are February and March (Cloud cover 51).
Months with the least cloud cover are July and August (Cloud cover 36).

Average visibility in July - Dover, NJ
  • Average visibility in July: 8km

Months with the highest visibility are January, March, April, November and December (9km).
Months with the lowest visibility are February, May, June, July, August, September and October (8km).