Williamstown, PA
Unincorporated community in Greene County, Pennsylvania
Williamstown is a small unincorporated community in Greene County, Pennsylvania. It is 0.4 miles SW of Clarksville, the nearest town. Its ZIP code is 15322.
Williamstown at a glance
- State
- Pennsylvania
- County
- Greene County
- ZIP code
- 15322
- Nearest town
- Clarksville (0.4 mi)
- Time zone
- America/New York
- Coordinates
- 39.9792, -80.0411
Weather in Williamstown now
Loading the National Weather Service forecast…
Williamstown weather by the hour
Williamstown weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Williamstown.
This week in Williamstown
Sunrise, sunset and moon in Williamstown
What is the weather usually like in Williamstown?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 83°F average high
- Januarycoldest month · 19°F average low
- 43.1 inprecipitation per year · 1,094 mm
- 30.1 insnowfall per year · 76 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Williamstown: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station WAYNESBURG 1 E, PA US (USC00369367), adjusted for the elevation of Williamstown.
Williamstown weather month by month
Sunrise and sunset in Williamstown through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:38 AM | 5:20 PM | 9 h 42 min |
| February | 7:11 AM | 5:57 PM | 10 h 46 min |
| March | 7:29 AM | 7:28 PM | 11 h 58 min |
| April | 6:40 AM | 7:59 PM | 13 h 19 min |
| May | 6:03 AM | 8:29 PM | 14 h 26 min |
| June | 5:49 AM | 8:52 PM | 15 h 3 min |
| July | 6:02 AM | 8:49 PM | 14 h 46 min |
| August | 6:30 AM | 8:18 PM | 13 h 47 min |
| September | 7:00 AM | 7:30 PM | 12 h 30 min |
| October | 7:29 AM | 6:42 PM | 11 h 12 min |
| November | 7:04 AM | 5:05 PM | 10 h 1 min |
| December | 7:33 AM | 4:57 PM | 9 h 24 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Williamstown?
Williamstown has a hot-summer humid continental climate. The warmest month is July, with an average high of 83°F (29°C), and the coldest is January, with average lows of 19°F (-7°C).
It gets about 43.1 inches (1,094 mm) of precipitation a year. The wettest month is May and the driest is February. Snow is common: about 30 inches fall in an average year.
The best time to visit Williamstown is June to September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
Webcams near Williamstown
The closest live webcam is Franklin Township, 7.8 miles SW of Williamstown.
Webcams: Windy.com. Distances in a straight line from Williamstown.
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Map of Williamstown, PA
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Williamstown Street View
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Other communities near Williamstown
Questions about Williamstown
Where is Williamstown, PA?
Williamstown is an unincorporated community in Greene County, Pennsylvania, 0.4 miles SW of Clarksville.
What county is Williamstown in?
Williamstown is in Greene County, Pennsylvania.
What is the ZIP code of Williamstown, PA?
The ZIP code for Williamstown is 15322.
What is the nearest town to Williamstown?
Clarksville, 0.4 miles away.
Are there webcams near Williamstown?
Yes. The closest is Franklin Township, 7.8 miles away.
What is the hottest month in Williamstown?
July, with an average high of 83°F (29°C).
What is the coldest month in Williamstown?
January, with an average low of 19°F (-7°C).
How much does it rain in Williamstown?
About 43.1 inches (1,094 mm) a year; the wettest month is May.
Does it snow in Williamstown?
Yes, about 30 inches of snow fall in an average year.
When is the best time to visit Williamstown?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Williamstown have?
Hot-summer humid continental (Köppen Dfa).
Last updated: