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Johnstown (PA) Climate by Month

The temperature in Johnstown can vary greatly throughout the year. The temperatures shift from warm to very cold. It also experiences much rain/snowfall throughout the year. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

Depending on the time of the year, temperatures range from comfortable to very cold in Johnstown. Average daytime temperatures reach a comfortable 27°C in July. In February, the coolest month of the year, temperatures drop to a very cold 2°C. At night, expect cooler temperatures, averaging -8°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Johnstown has a relatively rain/snowy climate with high precipitation levels, averaging 1262 mm of rain/snowfall annually. Johnstown experiences moderate seasonal variation in rainfall, with monthly averages ranging from 131 mm in June, the wettest month, and 76 mm in November, the driest month.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Johnstown can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 8.5 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.6 hours of sunlight per day.

Monthly hours of sunshine

Data from: Frostburg, the United States of America (74 KM, 46 Miles).

Daily hours of sunshine

Data from: Frostburg, the United States of America (74 KM, 46 Miles).

The best time of year to visit Johnstown in the United States of America

During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Johnstown?
    July has an average maximum temperature of 27°C and is the warmest month of the year.
  • Which is the coldest month in Johnstown?
    The coldest month is February with an average maximum temperature of 2°C.
  • Which is the wettest month in Johnstown?
    June tops the wettest month list with 131 mm of rainfall.
  • Which is the driest month in Johnstown?
    November is the driest month with 76 mm of precipitation.
  • Which is the sunniest month in Johnstown?
    July is the sunniest month with an average of 255 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Johnstown (PA)

    Sun   Dec 15
    2°C | -4°C
    SE 22 km/h
    17 mm
    overcast and heavy snow

    overcast and heavy snow

    Mon   Dec 16
    10°C | 1°C
    SE 18 km/h
    10 mm
    overcast and rain

    overcast and rain

    Tue   Dec 17
    10°C | 1°C
    W 18 km/h
    almost clear and no rain

    almost clear and no rain