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
Williamstown's July weather, with an average high temperature of 82.2°F (27.9°C) and an average low temperature of 62.1°F (16.7°C), tends to be the warmest of the year.Heat index
For July, the heat index is computed to be a tropical 89.6°F (32°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Remember that heat index calculations are made for conditions in the shade with light wind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
In Williamstown, the average relative humidity in July is 78%.Rainfall
In Williamstown, in July, during 17.2 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Williamstown, during the entire year, the rain falls for 148.4 days and collects up to 25.55" (649mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in July in Williamstown is 14h and 44min.On the first day of July, sunrise is at 5:39 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:22 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.3h of sunshine.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 6 in July leads to these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are the warmest months in Williamstown?
What are July temperatures in Williamstown?
What is the average humidity in July in Williamstown?
How much does it rain in Williamstown in July?
When it does not snow in Williamstown?
What is the average length of the day in July in Williamstown?
When are sunrise and sunset in July in Williamstown?
What month has the most sunshine in Williamstown?
How long on average sun shines in July in Williamstown?
When is the highest UV index in Williamstown?
How high is the UV index in July in Williamstown?
Average temperature in July
Williamstown, PA
- Average high temperature in July: 82.2°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in July: 62.1°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in July
Williamstown, PA
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in July
Williamstown, PA
- Average wind speed in July: 4.7mph
The windiest months (with the highest average wind speed) are March and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in July
Williamstown, PA
- Average humidity in July: 78%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in July
Williamstown, PA
- Average rainfall in July: 2.68"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is February (1.54").
Average rainfall days in July
Williamstown, PA
- Average rainfall days in July: 17.2 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in July
Williamstown, PA
- Average snowfall in July: 0"
The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Williamstown, PA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Williamstown, PA
- Average daylight in July: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- 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 February (Average sunshine: 4h and 12min).
Average sunshine days in July
Williamstown, PA
- Average sunshine days in July: 11.8 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in July
Williamstown, PA
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in July
Williamstown, PA
- Average cloud cover in July: 33
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in July
Williamstown, PA
- Average visibility in July: 6mi
The months with the highest visibility are January, March, April, June, July, November and December (6mi).
The months with the lowest visibility are February, May, August, September and October (5mi).
Williamstown, Pennsylvania, USA
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