Williamstown, PA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
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
- 50.9 inprecipitation per year · 1,292 mm
- 27.6 insnowfall per year · 70 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 DEHART DAM, PA US (USC00362071), adjusted for the elevation of Williamstown.
Williamstown weather month by month
Sunrise and sunset in Williamstown through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:26 AM | 5:05 PM | 9 h 39 min |
| February | 6:58 AM | 5:42 PM | 10 h 44 min |
| March | 7:16 AM | 7:14 PM | 11 h 58 min |
| April | 6:25 AM | 7:46 PM | 13 h 21 min |
| May | 5:47 AM | 8:17 PM | 14 h 29 min |
| June | 5:33 AM | 8:40 PM | 15 h 7 min |
| July | 5:47 AM | 8:37 PM | 14 h 50 min |
| August | 6:15 AM | 8:05 PM | 13 h 49 min |
| September | 6:46 AM | 7:17 PM | 12 h 30 min |
| October | 7:16 AM | 6:27 PM | 11 h 11 min |
| November | 6:51 AM | 4:50 PM | 9 h 58 min |
| December | 7:21 AM | 4:41 PM | 9 h 20 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Williamstown?
Williamstown has a warm-summer humid continental climate. The warmest month is July, with an average high of 83°F (28°C), and the coldest is January, with average lows of 19°F (-7°C).
It gets about 50.9 inches (1,292 mm) of precipitation a year. The wettest month is September and the driest is February. Snow is common: about 28 inches fall in an average year.
The best time to visit Williamstown is June to September. At 866 ft of elevation, nights are mild most of the year. 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.
More about Williamstown
Weather in towns near Williamstown
Questions about the weather in Williamstown
What is the hottest month in Williamstown?
July, with an average high of 83°F (28°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 50.9 inches (1,292 mm) a year; the wettest month is September.
Does it snow in Williamstown?
Yes, about 28 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?
Warm-summer humid continental (Köppen Dfb).
What is the weather like in Williamstown in November?
Highs average 51°F and lows 31°F, with about 3.3 inches of precipitation.
What time is sunrise in Williamstown?
Around 6:51 AM in mid-November, and sunset around 4:50 PM. Today’s exact times are shown above.
Where does this Williamstown weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Williamstown.
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