September weather forecast
Newton Hamilton, PA

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Weather in September

September, the first month of the autumn in Newton Hamilton, is also a moderately hot month, with temperature in the range of an average high of 74.3°F (23.5°C) and an average low of 53.2°F (11.8°C).

Temperature

Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a moderately hot 81.3°F (27.4°C) to a still warm 74.3°F (23.5°C). Newton Hamilton records a steady low-temperature average of 53.2°F (11.8°C) during September.

Humidity

The average relative humidity in September is 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:54 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In Newton Hamilton, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 4 during September leads to these advisories:
Undertake protective steps - Preventing sun damage is advised. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Newton Hamilton in September?

The high-temperature in Newton Hamilton during September is 74.3°F (23.5°C) and the low-temperature is 53.2°F (11.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 79%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 1.85" (47mm) of precipitation.

How many days does it rain in September?

In Newton Hamilton, in September, it is raining for 12.8 days, with typically 1.85" (47mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

In Newton Hamilton, Pennsylvania, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Newton Hamilton have in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:39 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:54 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.6h.

How high is the UV index in September?

In Newton Hamilton, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
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
Newton Hamilton, PA

Average temperature in September - Newton Hamilton, PA
  • Average high temperature in September: 74.3°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in September: 53.2°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in September
Newton Hamilton, PA

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Newton Hamilton, PA

Average wind speed in September - Newton Hamilton, PA
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in September
Newton Hamilton, PA

Average humidity in September - Newton Hamilton, PA
  • Average humidity in September: 79%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).

Average rainfall in September
Newton Hamilton, PA

Average rainfall in September - Newton Hamilton, PA
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September
Newton Hamilton, PA

Average rainfall days in September - Newton Hamilton, PA
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.5 days).

Average snowfall in September
Newton Hamilton, PA

Average snowfall in September - Newton Hamilton, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Newton Hamilton, PA

Average snowfall days in September - Newton Hamilton, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Newton Hamilton, PA

Average daylight in September / Average sunshine in September - Newton Hamilton, PA
  • Average daylight in September: 12h and 2min

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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Newton Hamilton, PA

Average sunshine days in September - Newton Hamilton, PA
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in September
Newton Hamilton, PA

Average UV index in September - Newton Hamilton, PA
  • Average UV index in September: 4

The months with the highest UV index are May and June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in September
Newton Hamilton, PA

Average cloud cover in September - Newton Hamilton, PA
  • Average cloud cover in September: 39

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in September
Newton Hamilton, PA

Average visibility in September - Newton Hamilton, 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).

Newton Hamilton, Pennsylvania, USA

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