September weather forecast
Harpers, PA

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Weather in September

September, the first month of the autumn in Harpers, is still a pleasant month, with an average temperature fluctuating between 72.9°F (22.7°C) and 53.8°F (12.1°C).

Temperature

September brings a slight decrease in temperature, down from a warm 79.3°F (26.3°C) in August to an agreeable 72.9°F (22.7°C). In September, the temperature drops to an average of 53.8°F (12.1°C) at night.

Humidity

The average relative humidity in September is 80%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.77" (45mm) of precipitation.

Snowfall

June through September are months without snowfall in Harpers.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 6:29 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

In Harpers, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

What is the temperature in September in Harpers?

September temperatures vary between a high-temperature of 72.9°F (22.7°C) and a low-temperature of 53.8°F (12.1°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in July is evaluated at 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 80%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.77" (45mm) of precipitation.

How much does it rain in September?

In Harpers, in September, it is raining for 11.5 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow?

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

Does it snow in September?

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

How many hours of daylight does Harpers have in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:29 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm EDT.

How many hours of sunshine does Harpers have in September?

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

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes 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
Harpers, PA

Average temperature in September - Harpers, PA
  • Average high temperature in September: 72.9°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 53.8°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in September
Harpers, PA

Average pressure in September - Harpers, 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).

Average wind speed in September
Harpers, PA

Average wind speed in September - Harpers, PA
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Harpers, PA

Average humidity in September - Harpers, PA
  • Average humidity in September: 80%

The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April and July (77%).

Average rainfall in September
Harpers, PA

Average rainfall in September - Harpers, PA
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in September
Harpers, PA

Average rainfall days in September - Harpers, PA
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in September
Harpers, PA

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

The months with the highest snowfall are January and March (4.41").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Harpers, PA

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

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
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 February (Average sunshine: 4h and 18min).

Average sunshine days in September
Harpers, PA

Average sunshine days in September - Harpers, PA
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in September
Harpers, PA

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Harpers, PA

Average cloud cover in September - Harpers, PA
  • Average cloud cover in September: 40

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in September
Harpers, PA

Average visibility in September - Harpers, 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).

Harpers, Pennsylvania, USA

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