Yosemite National Park is definitely worth a visit
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Imperial (PA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Imperial.
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Climate overview of Imperial
The climate in Imperial, Pennsylvania, United States of America, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in July to 2°C (36°F) in January.
The city receives around 977 mm (38 in) of rain/snowfall per year. It experiences warm summers and cold winters. June is the wettest month and November the driest. Sunshine peaks in July, when the city sees around 8.5 hours of sunshine per day.
Imperial Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Imperial - and find the best time to visit.
Monthly Temperature in Imperial
In Imperial, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 28°C (82°F) in July to a chilly 2°C (36°F) in January.
Nighttime temperatures range from 17°C (63°F) in July to -7°C (19°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Imperial
On average, Imperial receives a reasonable amount of rain/snowfall, with an annual precipitation of 977 mm (38 in). The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 112 mm (4.4 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, November, still receives a respectable 61 mm (2.4 in) of rainfall. For more details, please visit our Imperial 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 Imperial
In Imperial, 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
Data from: Pittsburgh, the United States of America (6 KM, 3 Miles).
Daily hours of sunshine
Data from: Pittsburgh, the United States of America (6 KM, 3 Miles).
Daily percentage of sunshine
Data from: Pittsburgh, the United States of America (6 KM, 3 Miles).
Humidity in Imperial by Month
The relative humidity is high throughout the year in Imperial.
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
Data from: Pittsburgh, the United States of America (6 KM, 3 Miles).
Wind Speed in Imperial
The mean wind speed over the year ranges from 2 m/s (4 knots) in August to 4 m/s (8 knots) in January, February, March, April, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Data from: Pittsburgh, the United States of America (6 KM, 3 Miles).
Best Time to Visit Imperial
The most comfortable overall weather for exploring Imperial is usually found in May, July, August and September. Conditions are generally least comfortable in January, February, March 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
cold
Apr
good
May
excellent
Jun
very good
Jul
excellent
Aug
excellent
Sep
excellent
Oct
good
Nov
mixed
Dec
cold
- Best overall: May, July, August and September
- Warmest weather: July and August
- Most sunshine: June and July
- Fewer rainy days: March, July, August, September and November
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Imperial
What is the best time to visit Imperial?
May, July, August and September typically offer the most optimal weather in Imperial. In contrast, January, February, March and December tend to have less optimal conditions. Imperial has warm summers and cold winters.
What temperatures can I expect in Imperial?
Daytime highs range from 2°C (36°F) in January to 28°C (82°F) in July. Nighttime lows range from -7°C (19°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Imperial get?
Annual rainfall is around 977 mm (38 in). June is the wettest month with 112 mm (4.4 in), while November is the driest with 61 mm (2.4 in).
How sunny is Imperial?
Imperial 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, Imperial enjoys abundant sunshine.
Imperial 3-Day Forecast
Imperial on the map
Imperial is highlighted - select any city to see its climate.
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