July weather forecastJefferson, NH
July
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 15h and 6min
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 24min
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: 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: 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: 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: 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).





