July weather forecastCastleton, VT
July
Weather in July
The weather in July hits its peak summer conditions with temperatures soaring to a high of 79.3°F (26.3°C). Interestingly, July witnesses the maximum daylight hours at approximately 15 per day. The considerably high UV Index of 5 calls for a need to take protective measures against the sun. Despite a bit of cloud cover and a relative humidity of 77%, July still manages to provide ample sunlight for residents. Water sports, picnics, and other outdoor activities can be optimally enjoyed during this season.Temperature
Castleton's warmest weather arrives in July, when temperatures average a high of 79.3°F (26.3°C) and a low of 56.8°F (13.8°C).Humidity
In July, the average relative humidity is 77%.Rainfall
In Castleton, during July, the rain falls for 12.4 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Castleton, during the entire year, the rain falls for 112.5 days and collects up to 10.75" (273mm) of precipitation.Snowfall
In Castleton, snow does not fall in June through September.Daylight
The average length of the day in July in Castleton is 15h and 3min.On the first day of the month, sunrise is at 5:15 am and sunset at 8:37 pm. On the last day of July, sunrise is at 5:41 am and sunset at 8:16 pm EDT.
Sunshine
The month with the most sunshine is July, with an average of 10.2h of sunshine.UV index
The months with the highest UV index in Castleton, Vermont, are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In July, a daily maximum UV index of 5 leads to the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Castleton, VT
- Average high temperature in July: 79.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in July: 56.8°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in July
Castleton, VT
- Average pressure in July: 29.94"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in July
Castleton, VT
- Average wind speed in July: 5.3mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in July
Castleton, VT
- Average humidity in July: 77%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in July
Castleton, VT
- Average rainfall in July: 1.18"
The wettest month (with the highest rainfall) is June (1.22").
The driest months (with the least rainfall) are March and September (0.67").
Average rainfall days in July
Castleton, VT
- Average rainfall days in July: 12.4 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in July
Castleton, VT
- Average snowfall in July: 0"
The month with the highest snowfall is February (3.11").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Castleton, VT
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Castleton, VT
- Average daylight in July: 15h and 6min
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: 10h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in July
Castleton, VT
- Average sunshine days in July: 16.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is February (15.6 days).
Average UV index in July
Castleton, VT
- Average UV index in July: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Castleton, VT
- Average cloud cover in July: 36
The month with the most cloud cover is February (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in July
Castleton, VT
- Average visibility in July: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).





