July weather forecast
Jefferson, NH

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Weather in July

July in Jefferson, New Hampshire, is a warm summer month, with an average temperature varying between 74.8°F (23.8°C) and 53.8°F (12.1°C).

Temperature

Jefferson's temperatures tend to reach their peak averages in July, with a high of 74.8°F (23.8°C) and a low of 53.8°F (12.1°C).

Humidity

The average relative humidity in July is 79%.

Rainfall

In July, the rain falls for 18.5 days. Throughout July, 2.48" (63mm) of precipitation is accumulated. In Jefferson, during the entire year, the rain falls for 159.6 days and collects up to 31.97" (812mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in July is 15h and 8min.
On the first day of the month, sunrise is at 5:05 am and sunset at 8:34 pm. On the last day of July, sunrise is at 5:32 am and sunset at 8:11 pm EDT.

Sunshine

The average sunshine in July is 9.4h.

UV index

June and July, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: During July, 5 as the daily maximum UV index converts into the following advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

With an average high-temperature of 74.8°F (23.8°C) and an average low-temperature of 53.8°F (12.1°C), July is the warmest month in Jefferson.

What is the temperature in July in Jefferson?

The average high-temperature and low-temperature during July are 74.8°F (23.8°C) and 53.8°F (12.1°C) respectively.

What is the average humidity in July?

The average relative humidity in July is 79%.

How many days does it rain in July?

In Jefferson, during July, the rain falls for 18.5 days and regularly aggregates up to 2.48" (63mm) of precipitation.

When it does not snow?

In Jefferson, snow does not fall in June through September.

What is the average length of the day in July?

In July, the average day length is 15h and 8min.

When is the sunrise / sunset in July in Jefferson?

In July, on the first day of the month, sunrise is at 5:05 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:11 pm EDT.

How long on average sun shines in July?

In July, the average sunshine duration is 9.4h.

What are the months with the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 5.

How high is the UV index in July in Jefferson?

In July, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
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 July
Jefferson, NH

Average temperature in July - Jefferson, NH
  • Average high temperature in July: 74.8°F

The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in July: 53.8°F

The month with the highest average low temperature is July (53.8°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).

Average pressure in July
Jefferson, NH

Average pressure in July - Jefferson, NH
  • Average pressure in July: 29.93"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
Jefferson, NH

Average wind speed in July - Jefferson, NH
  • Average wind speed in July: 4.9mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in July
Jefferson, NH

Average humidity in July - Jefferson, NH
  • Average humidity in July: 79%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (77%).

Average rainfall in July
Jefferson, NH

Average rainfall in July - Jefferson, NH
  • Average rainfall in July: 2.48"

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in July
Jefferson, NH

Average rainfall days in July - Jefferson, NH
  • Average rainfall days in July: 18.5 days

The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is January (5.7 days).

Average snowfall in July
Jefferson, NH

Average snowfall in July - Jefferson, NH
  • Average snowfall in July: 0"

The month with the highest snowfall is February (14.88").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Jefferson, NH

Average snowfall days in July - Jefferson, NH
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (21.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Jefferson, NH

Average daylight in July / Average sunshine in July - Jefferson, NH
  • Average daylight in July: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in July: 9h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).

Average sunshine days in July
Jefferson, NH

Average sunshine days in July - Jefferson, NH
  • Average sunshine days in July: 10.3 days

The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (7 days).

Average UV index in July
Jefferson, NH

Average UV index in July - Jefferson, NH
  • Average UV index in July: 5

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in July
Jefferson, NH

Average cloud cover in July - Jefferson, NH
  • Average cloud cover in July: 42

The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 42).

Average visibility in July
Jefferson, NH

Average visibility in July - Jefferson, NH
  • Average visibility in July: 5mi

The months with the highest visibility are May, June and July (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October, November and December (4mi).

Jefferson, New Hampshire, USA

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