Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Williston reaches its highest average temperatures in July, measuring 79.2°F (26.2°C) at the peak and 61°F (16.1°C) at the lowest.Humidity
May, July and August, with an average relative humidity of 77%, are the least humid months.Rainfall
In Williston, during July, the rain falls for 18 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 161.8 rainfall days, and 21.93" (557mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in July is 14h and 58min.On the first day of July in Williston, sunrise is at 5:39 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:35 pm EDT.
Sunshine
The month with the most sunshine is July, with an average of 10.3h of sunshine.UV index
The month with the highest UV index is July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In July, an average UV index of 6 transforms into the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
What is the usual temperature for Williston in July?
What are the least humid months?
What is the average humidity in July?
How many days does it rain in July?
When it does not snow?
How many hours of daylight does Williston have in July?
When is the sunrise / sunset in July?
What month has the most sunshine?
How long on average sun shines in July?
What is the month with the highest UV index?
How high is the UV index in July?
Average temperature in July
Williston, NY
- Average high temperature in July: 79.2°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in July: 61°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in July
Williston, NY
- Average pressure in July: 29.95"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in July
Williston, NY
- Average wind speed in July: 6.4mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in July
Williston, NY
- Average humidity in July: 77%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are May, July and August (77%).
Average rainfall in July
Williston, NY
- Average rainfall in July: 2.2"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in July
Williston, NY
- Average rainfall days in July: 18 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in July
Williston, NY
- Average snowfall in July: 0"
The month with the highest snowfall is February (6.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Williston, NY
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Williston, NY
- Average daylight in July: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in July: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in July
Williston, NY
- Average sunshine days in July: 10.5 days
The month with the most sunshine days is June (13.4 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in July
Williston, NY
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Williston, NY
- Average cloud cover in July: 34
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in July
Williston, NY
- Average visibility in July: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Williston, New York, USA
Weather forecast for your location
2. Allow the app to use your location