July weather forecastAlton, NH
July
Weather in July
July offers the quintessential summer experience in Alton. It gets warmer and peaks at an average high temperature of 78.3°F (25.7°C), making it the hottest month of the year. The increased heat is balanced by the serene beauty of Alton’s natural surroundings. The overall atmospheric pressure stabilizes leading to calm and quiet days. The weather in July encourages outdoor events and offers the perfect conditions for seasonal festivities.Temperature
Alton's warmest weather arrives in July, when temperatures average a high of 78.3°F (25.7°C) and a low of 57.6°F (14.2°C).Humidity
The average relative humidity in July is 79%.Rainfall
In Alton, New Hampshire, in July, it is raining for 15.4 days, with typically 2.09" (53mm) of accumulated precipitation. In Alton, during the entire year, the rain falls for 152 days and collects up to 29.09" (739mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In July, the average length of the day is 15h and 2min.On the first day of the month, sunrise is at 5:08 am and sunset at 8:29 pm. On the last day of July, sunrise is at 5:34 am and sunset at 8:08 pm EDT.
Sunshine
In July, the average sunshine in Alton is 9.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 5 in July leads to these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Alton, NH
- Average high temperature in July: 78.3°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in July: 57.6°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in July
Alton, 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
Alton, NH
- Average wind speed in July: 4.7mph
The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in July
Alton, NH
- Average humidity in July: 79%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in July
Alton, NH
- Average rainfall in July: 2.09"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in July
Alton, NH
- Average rainfall days in July: 15.4 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in July
Alton, NH
- Average snowfall in July: 0"
The month with the highest snowfall is February (9.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Alton, NH
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Alton, NH
- Average daylight in July: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in July: 9h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in July
Alton, NH
- Average sunshine days in July: 13 days
The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is April (11.4 days).
Average UV index in July
Alton, NH
- Average UV index in July: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in July
Alton, NH
- Average cloud cover in July: 38
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in July
Alton, NH
- Average visibility in July: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
