Greensburg (PA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Greensburg.
Climate overview of Greensburg
Greensburg, Pennsylvania, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 28°C (82°F) in July, while winters cool to 3°C (37°F) in January.
The city has a wet climate, receiving around 1253 mm (49 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and cold winters. June is the wettest month. July is the sunniest month, averaging 8.5 hours of sunshine per day.
Greensburg Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Greensburg - and find the best time to visit.
Monthly Temperature in Greensburg
Depending on the time of the year, temperatures range from comfortable to chilly in Greensburg. On average, daytime temperatures range from a comfortable 28°C (82°F) in July to a chilly 3°C (37°F) in January.
Nighttime temperatures range from 16°C (61°F) in July to -8°C (18°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Greensburg
Greensburg has a relatively rain/snowy climate with high precipitation levels, averaging 1253 mm (49 in) of rain/snowfall annually. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 145 mm (5.7 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 73 mm (2.9 in) of snow/rainfall. For more details, please visit our Greensburg Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Greensburg
In Greensburg, summer days are longer and more sunny, with daily sunshine hours peaking at 8.5 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.4 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Greensburg by Month
The relative humidity is high throughout the year in Greensburg.
The city experiences its highest humidity in September, reaching 72%. In April, the humidity drops to its lowest level at 59%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Greensburg
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Most sunshine: June and July
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -8°C (18°F).
Frequently asked questions about the climate in Greensburg
What is the best time to visit Greensburg?
September typically offers the most optimal weather in Greensburg. In contrast, January, February, March and December tend to have less optimal conditions. Greensburg has warm summers and cold winters.
What temperatures can I expect in Greensburg?
Daytime highs range from 3°C (37°F) in January to 28°C (82°F) in July. Nighttime lows range from -8°C (18°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Greensburg get?
Annual rainfall is around 1253 mm (49 in). June is the wettest month with 145 mm (5.7 in), while February is the driest with 73 mm (2.9 in).
How sunny is Greensburg?
Greensburg receives around 2,029 hours of sunshine per year. July is the sunniest month with 255 hours, while December is the cloudiest with just 73 hours. Overall, Greensburg enjoys abundant sunshine.
Greensburg 3-Day Forecast
Greensburg (PA) 3-Day Forecast
Greensburg on the map
Greensburg is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.