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Weather in Johnstown, Pennsylvania for September 2027

Your guide to Johnstown weather in September - trends and predictions

    Rain 🌧️

  • Johnstown experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 202.8 mm.

  • More

  • Is September a good time to visit Johnstown? check out the best time to travel to Johnstown page.

  • ✨ Is September a good time to visit Johnstown? – Ask the AI Weatherman

Average dry days
20
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/13°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Johnstown Weather September

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Temperatures trend during September in Johnstown

See the weather trend as well as the moving average line

September weather in Johnstown day by day

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Date Weather Temperatures Rain UV More
Sept. 1 Overcast
Overcast
26° /15° 0 mm 8
Sept. 2 Overcast
Overcast
27° /15° 0 mm 8.2
Sept. 3 Moderate rain
Moderate rain
27° /17° 12.3 mm 5
Sept. 4 Moderate rain
Moderate rain
23° /17° 12.3 mm 5
Sept. 5 Light rain
Light rain
25° /17° 2.8 mm 4
Sept. 6 Heavy rain
Heavy rain
22° /13° 11.4 mm 5
Sept. 7 Fog
Fog
20° /11° 0 mm 5
Sept. 8 Overcast
Overcast
22° /9° 0 mm 7
Sept. 9 Sunny
Sunny
26° /12° 0.4 mm 7
Sept. 10 Light rain
Light rain
23° /13° 9.1 mm 5
Sept. 11 Mist
Mist
24° /13° 0.3 mm 7
Sept. 12 Moderate rain
Moderate rain
24° /14° 14.8 mm 5
Sept. 13 Light rain
Light rain
23° /15° 4.3 mm 4
Sept. 14 Cloudy
Cloudy
22° /14° 0.4 mm 7
Sept. 15 Overcast
Overcast
23° /13° 0 mm 6
Sept. 16 Light rain
Light rain
25° /14° 2.5 mm 6.9
Sept. 17 Light rain
Light rain
22° /16° 5.7 mm 2
Sept. 18 Fog
Fog
22° /15° 0.9 mm 2
Sept. 19 Mist
Mist
22° /14° 0.1 mm 6
Sept. 20 Heavy rain
Heavy rain
18° /15° 25.2 mm 2
Sept. 21 Light rain
Light rain
17° /12° 6.9 mm 2
Sept. 22 Light rain
Light rain
18° /12° 4.6 mm 3
Sept. 23 Heavy rain
Heavy rain
18° /13° 44.8 mm 2
Sept. 24 Heavy rain
Heavy rain
19° /11° 37 mm 3
Sept. 25 Light rain
Light rain
19° /11° 3.3 mm 4
Sept. 26 Fog
Fog
19° /12° 0 mm 2
Sept. 27 Patchy rain possible
Patchy rain possible
18° /8° 1.5 mm 1
Sept. 28 Patchy rain possible
Patchy rain possible
17° /12° 1.6 mm 2
Sept. 29 Fog
Fog
21° /13° 0.3 mm 3
Sept. 30 Mist
Mist
24° /12° 0 mm 4
Next
Important Notice
Our weather forecast for Johnstown in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Johnstown forecast closer to your planned date for the most up-to-date weather information.

Johnstown in September - FAQ

What are the expected maximum and minimum temperatures in Johnstown during September?

Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Johnstown during September?

Significant rainfall exceeding 202.8 mm is expected in Johnstown during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Johnstown during September?

The average wind speed in Johnstown during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Johnstown

Explore the daily rainfall trends and prepare for Johnstowns September weather 💧
Typically, Johnstown has 10 rainy days in September with a total of 202.8 mm of rainfall.

UV exposure in Johnstown during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
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Location coordinates Where is Johnstown?

Get accurate weather forecasts for Johnstown, located at latitude 40.327 and longitude -78.922. Stay updated with localized weather information tailored for Johnstown.

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