Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Greencastle (PA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Greencastle.
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Climate overview of Greencastle
Temperatures in Greencastle, Pennsylvania, United States of America, vary greatly throughout the year. July is the hottest month at 31°C (88°F), while January is the coldest at 4°C (39°F).
The city receives considerable rain/snowfall, with around 1002 mm (39 in) annually. June is the wettest month. It has very warm summers and cold winters.
Greencastle Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Greencastle - and find the best time to visit.
Monthly Temperature in Greencastle
The climate in Greencastle is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in July to a chilly 4°C (39°F) in the coolest month, January.
Nights vary from 19°C (66°F) in July to around -5°C (23°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Greencastle
Greencastle has a notably wet climate with abundant precipitation, recording 1002 mm (39 in) of rain/snowfall per year. Greencastle offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month June (116 mm (4.6 in)) and the driest month November (60 mm (2.4 in)) is not too significant. For more details, please visit our Greencastle Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Greencastle
The most comfortable overall weather for exploring Greencastle is usually found in May, August and September. Conditions are generally least comfortable in January, February and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
cold
Mar
mixed
Apr
very good
May
excellent
Jun
very good
Jul
good
Aug
excellent
Sep
excellent
Oct
good
Nov
mixed
Dec
cold
- Best overall: May, August and September
- Warmest weather: July and August
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Greencastle
What is the best time to visit Greencastle?
May, August and September typically offer the most optimal weather in Greencastle. In contrast, January, February and December tend to have less optimal conditions. Greencastle has very warm summers and cold winters.
What temperatures can I expect in Greencastle?
Daytime highs range from 4°C (39°F) in January to 31°C (88°F) in July. Nighttime lows range from -5°C (23°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Greencastle get?
Annual rainfall is around 1002 mm (39 in). June is the wettest month with 116 mm (4.6 in), while November is the driest with 60 mm (2.4 in).
Greencastle 3-Day Forecast
Greencastle on the map
Greencastle is highlighted - select any city to see its climate.
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