September weather forecast
Pleasant Hills, PA

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Weather in September

The first month of the autumn, September, is still a warm month in Pleasant Hills, Pennsylvania, with an average temperature fluctuating between 55.8°F (13.2°C) and 75.6°F (24.2°C).

Temperature

With the commencement of September, Pleasant Hills records a moderate temperature decline, with the average high easing from August's 81.9°F (27.7°C) to a still moderately hot 75.6°F (24.2°C). September nights in Pleasant Hills, Pennsylvania, observe an average temperature dip to a mild 55.8°F (13.2°C).

Humidity

In Pleasant Hills, the average relative humidity in September is 77%.

Rainfall

The months with the least rainfall in Pleasant Hills, Pennsylvania, are September and November Rain falls for 9 days and accumulates 0.55" (14mm) of rain.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Pleasant Hills, Pennsylvania, is 12h and 27min.
On the first day of September in Pleasant Hills, Pennsylvania, sunrise is at 6:47 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:03 pm EDT.

Sunshine

In Pleasant Hills, Pennsylvania, the average sunshine in September is 8.6h.

UV index

In Pleasant Hills, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the temperature in September in Pleasant Hills?

In Pleasant Hills, in September, the average high-temperature is 75.6°F (24.2°C), and the average low-temperature is 55.8°F (13.2°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 87.8°F (31°C).

What is the average humidity in September in Pleasant Hills?

In Pleasant Hills, Pennsylvania, the average relative humidity in September is 77%.

What is the driest month in Pleasant Hills?

The months with the least rainfall in Pleasant Hills are September and November Rain falls for 9 days and accumulates 0.55" (14mm) of rain.

How much does it rain in Pleasant Hills in September?

In Pleasant Hills, in September, it is raining for 9 days, with typically 0.55" (14mm) of accumulated precipitation.

When it does not snow in Pleasant Hills?

In Pleasant Hills, Pennsylvania, snow does not fall in June through September.

Does it snow in Pleasant Hills in September?

In Pleasant Hills, Pennsylvania, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Pleasant Hills?

In Pleasant Hills, the average day length in September is 12h and 27min.

When is the sunrise / sunset in September in Pleasant Hills?

On the first day of September, sunrise is at 6:47 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:03 pm EDT.

How long on average sun shines in September in Pleasant Hills?

In Pleasant Hills, the average sunshine duration in September is 8.6h.

What is the UV index reading in September in Pleasant Hills?

The average daily maximum UV index in September in Pleasant Hills is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Pleasant Hills, PA

Average temperature in September - Pleasant Hills, PA
  • Average high temperature in September: 75.6°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in September
Pleasant Hills, PA

Average pressure in September - Pleasant Hills, PA
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in September
Pleasant Hills, PA

Average wind speed in September - Pleasant Hills, PA
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in September
Pleasant Hills, PA

Average humidity in September - Pleasant Hills, PA
  • Average humidity in September: 77%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (74%).

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Average rainfall in September
Pleasant Hills, PA

Average rainfall in September - Pleasant Hills, PA
  • Average rainfall in September: 0.55"

The wettest month (with the highest rainfall) is May (1.26").
The driest months (with the least rainfall) are September and November (0.55").

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Average rainfall days in September
Pleasant Hills, PA

Average rainfall days in September - Pleasant Hills, PA
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (7.1 days).

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Average snowfall in September
Pleasant Hills, PA

Average snowfall in September - Pleasant Hills, PA
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (1.65").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Pleasant Hills, PA

Average snowfall days in September - Pleasant Hills, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.4 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
Pleasant Hills, PA

Average daylight in September / Average sunshine in September - Pleasant Hills, 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 24min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in September
Pleasant Hills, PA

Average sunshine days in September - Pleasant Hills, PA
  • Average sunshine days in September: 18.6 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.3 days).

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Average UV index in September
Pleasant Hills, PA

Average UV index in September - Pleasant Hills, PA
  • Average UV index in September: 4

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Pleasant Hills, PA

Average cloud cover in September - Pleasant Hills, PA
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in September
Pleasant Hills, PA

Average visibility in September - Pleasant Hills, PA
  • Average visibility in September: 5mi

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

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Pleasant Hills, Pennsylvania, USA

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