St. Marys, PA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in St. Marys now
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St. Marys weather by the hour
St. Marys weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of St. Marys.
This week in St. Marys
Sunrise, sunset and moon in St. Marys
What is the weather usually like in St. Marys?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 79°F average high
- Januarycoldest month · 13°F average low
- 46.4 inprecipitation per year · 1,179 mm
- 66.0 insnowfall per year · 168 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit St. Marys: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station GLEN HAZEL 2 NE DAM, PA US (USC00363311), adjusted for the elevation of St. Marys.
St. Marys weather month by month
Sunrise and sunset in St. Marys through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:36 AM | 5:10 PM | 9 h 34 min |
| February | 7:07 AM | 5:49 PM | 10 h 41 min |
| March | 7:23 AM | 7:21 PM | 11 h 58 min |
| April | 6:32 AM | 7:55 PM | 13 h 23 min |
| May | 5:53 AM | 8:27 PM | 14 h 34 min |
| June | 5:38 AM | 8:51 PM | 15 h 12 min |
| July | 5:52 AM | 8:48 PM | 14 h 55 min |
| August | 6:21 AM | 8:15 PM | 13 h 53 min |
| September | 6:53 AM | 7:25 PM | 12 h 31 min |
| October | 7:24 AM | 6:34 PM | 11 h 9 min |
| November | 7:01 AM | 4:55 PM | 9 h 54 min |
| December | 7:31 AM | 4:46 PM | 9 h 15 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in St. Marys?
St. Marys has a warm-summer humid continental climate. The warmest month is July, with an average high of 79°F (26°C), and the coldest is January, with average lows of 13°F (-10°C).
It gets about 46.4 inches (1,179 mm) of precipitation a year. The wettest month is July and the driest is February. Snow is common: about 66 inches fall in an average year.
The best time to visit St. Marys is June to September. At 1,667 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 St. Marys
Weather in towns near St. Marys
Questions about the weather in St. Marys
What is the hottest month in St. Marys?
July, with an average high of 79°F (26°C).
What is the coldest month in St. Marys?
January, with an average low of 13°F (-10°C).
How much does it rain in St. Marys?
About 46.4 inches (1,179 mm) a year; the wettest month is July.
Does it snow in St. Marys?
Yes, about 66 inches of snow fall in an average year.
When is the best time to visit St. Marys?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does St. Marys have?
Warm-summer humid continental (Köppen Dfb).
What is the weather like in St. Marys in November?
Highs average 46°F and lows 28°F, with about 3.8 inches of precipitation.
What time is sunrise in St. Marys?
Around 7:01 AM in mid-November, and sunset around 4:55 PM. Today’s exact times are shown above.
Where does this St. Marys weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of St. Marys.
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