September weather forecast
Jamesville, PA

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Weather in September

September, the first month of the autumn in Jamesville, is still a warm month, with an average temperature ranging between min 54.5°F (12.5°C) and max 73.8°F (23.2°C).

Temperature

As September begins, there is a minor decrease in the average high-temperature, softly falling from a warm 80.2°F (26.8°C) in August to a still moderately hot 73.8°F (23.2°C). Jamesville anticipates an average minimum temperature of 54.5°F (12.5°C) in the month of September.

Humidity

The average relative humidity in September is 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.2 days and accumulates 2.01" (51mm) of precipitation.

Snowfall

In Jamesville, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:29 am and sunset at 7:33 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:44 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In September, the average daily maximum UV index in Jamesville is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 4 during September leads to these instructions:
Put precautions into practice - Guidance to elude sunburn is provided. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

What are September temperatures in Jamesville?

In September, the average high-temperature and low-temperature are 73.8°F (23.2°C) and 54.5°F (12.5°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in September in Jamesville?

The average relative humidity in September is 79%.

What is the driest month in Jamesville?

September is the month with the least rainfall. Rain falls for 12.2 days and accumulates 2.01" (51mm) of precipitation.

How many days does it rain in September in Jamesville?

In September, the rain falls for 12.2 days. Throughout September, 2.01" (51mm) of precipitation is accumulated.

When it does not snow in Jamesville?

June through September are months without snowfall in Jamesville, Pennsylvania.

Does it snow in Jamesville in September?

In Jamesville, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Jamesville?

The average day length in September is 12h and 27min.

When is the sunrise / sunset in September in Jamesville?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:33 pm. On the last day of the month, in Jamesville, sunrise is at 6:57 am and sunset at 6:44 pm EDT.

How many hours of sunshine does Jamesville have in September?

In September, the average sunshine duration in Jamesville, Pennsylvania, is 8.7h.

What is the UV index reading in September in Jamesville?

The average daily maximum UV index in September in Jamesville, Pennsylvania, is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Jamesville, PA

Average temperature in September - Jamesville, PA
  • Average high temperature in September: 73.8°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

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Average pressure in September
Jamesville, PA

Average pressure in September - Jamesville, PA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Jamesville, PA

Average wind speed in September - Jamesville, PA
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in September
Jamesville, PA

Average humidity in September - Jamesville, PA
  • Average humidity in September: 79%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in September
Jamesville, PA

Average rainfall in September - Jamesville, PA
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in September
Jamesville, PA

Average rainfall days in September - Jamesville, PA
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (9.9 days).

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Average snowfall in September
Jamesville, PA

Average snowfall in September - Jamesville, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Jamesville, PA

Average snowfall days in September - Jamesville, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Jamesville, PA

Average daylight in September / Average sunshine in September - Jamesville, PA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in September
Jamesville, PA

Average sunshine days in September - Jamesville, PA
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in September
Jamesville, PA

Average UV index in September - Jamesville, PA
  • Average UV index in September: 4

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Jamesville, PA

Average cloud cover in September - Jamesville, PA
  • Average cloud cover in September: 39

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in September
Jamesville, PA

Average visibility in September - Jamesville, PA
  • Average visibility in September: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

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Jamesville, Pennsylvania, USA

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