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Weather in Parsippany for September 2025

Your guide to Parsippany weather in September - trends and predictions
  • In general, the average temperature in Parsippany at the beginning of September is 23.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.7 °F by the end of September.

  • Parsippany sees moderate rainfall in September, averaging 8 rainy days.

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Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/15°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
69 %
Avg humidity

Parsippany in September average weather

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Temperatures trend during September in Parsippany

See the weather trend as well as the moving average line

September weather day by day

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Date Weather Temperatures Rain UV More
Sept. 1 Light rain shower
Light rain shower
26° /20° 3.3 mm 6
Sept. 2 Overcast
Overcast
24° /14° 0 mm 5
Sept. 3 Sunny
Sunny
23° /10° 0 mm 6
Sept. 4 Sunny
Sunny
24° /11° 0 mm 6
Sept. 5 Sunny
Sunny
25° /13° 0 mm 7
Sept. 6 Overcast
Overcast
22° /14° 0 mm 5
Sept. 7 Light rain shower
Light rain shower
21° /12° 5.7 mm 5
Sept. 8 Sunny
Sunny
21° /8° 0 mm 6
Sept. 9 Partly cloudy
Partly cloudy
23° /10° 0 mm 6
Sept. 10 Sunny
Sunny
25° /13° 0 mm 7
Sept. 11 Sunny
Sunny
26° /12° 0 mm 7
Sept. 12 Sunny
Sunny
26° /14° 0 mm 7
Sept. 13 Sunny
Sunny
28° /14° 0 mm 7
Sept. 14 Sunny
Sunny
28° /16° 0 mm 7
Sept. 15 Partly cloudy
Partly cloudy
27° /16° 0 mm 7
Sept. 16 Overcast
Overcast
25° /14° 0 mm 6
Sept. 17 Overcast
Overcast
21° /16° 0 mm 5
Sept. 18 Mist
Mist
21° /16° 0 mm 5
Sept. 19 Overcast
Overcast
24° /17° 7.5 mm 5
Sept. 20 Overcast
Overcast
21° /18° 0 mm 5
Sept. 21 Partly cloudy
Partly cloudy
24° /18° 0 mm 6
Sept. 22 Overcast
Overcast
22° /15° 0 mm 5
Sept. 23 Overcast
Overcast
19° /14° 0 mm 4
Sept. 24 Cloudy
Cloudy
19° /14° 0 mm 4
Sept. 25 Heavy rain at times
Heavy rain at times
18° /16° 41.8 mm 4
Sept. 26 Heavy rain at times
Heavy rain at times
24° /18° 42.2 mm 5
Sept. 27 Light rain shower
Light rain shower
22° /16° 8.8 mm 5
Sept. 28 Overcast
Overcast
21° /17° 3.4 mm 5
Sept. 29 Mist
Mist
16° /15° 2.5 mm 4
Sept. 30 Overcast
Overcast
18° /15° 0 mm 4
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Important Notice
Our weather forecast for Parsippany 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 Parsippany forecast closer to your planned date for the most up-to-date weather information.

Parsippany in September - FAQ

What are the expected maximum and minimum temperatures in Parsippany during September?
During September, expect a variety of temperatures with highs around 23° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Parsippany during September?
Significant rainfall exceeding 115.2 mm is expected in Parsippany during September, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Parsippany during September?
The average wind speed in Parsippany during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Parsippany

Explore the daily rainfall trends and prepare for Parsippanys September weather 💧

UV exposure in Parsippany during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Parsippany?

Get accurate weather forecasts for Parsippany, located at latitude 40.858 and longitude -74.426. Stay updated with localized weather information tailored for Parsippany.

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