September weather forecast
Pleasant Hill, PA

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Weather in September

September, the first month of the autumn in Pleasant Hill, is also a moderately hot month, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 73.8°F (23.2°C).

Temperature

September's arrival aligns with a minor decrease in average high-temperatures, from August's 79.9°F (26.6°C) to a still warm 73.8°F (23.2°C). In Pleasant Hill, an average nighttime temperature of 55.4°F (13°C) is expected during September.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Pleasant Hill, in September, during 10.5 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Pleasant Hill, Pennsylvania, during the entire year, the rain falls for 137.4 days and collects up to 16.26" (413mm) of precipitation.

Snowfall

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

Daylight

In Pleasant Hill, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a regular UV index of 4 translates into these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

An average high-temperature, in September, in Pleasant Hill, is 73.8°F (23.2°C) and the average low-temperature is 55.4°F (13°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is appraised at 87.8°F (31°C).

What is the average humidity in September?

The average relative humidity in September is 80%.

How much does it rain in September?

In Pleasant Hill, in September, it is raining for 10.5 days, with typically 1.02" (26mm) of accumulated precipitation.

When it does not snow?

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

Does it snow in September?

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

How many hours of daylight does Pleasant Hill have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:33 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration in Pleasant Hill is 8.8h.

What is the UV index intensity in September?

The average daily maximum UV index in September in Pleasant Hill is 4. A UV Index of 3 to 5 symbolizes 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
Pleasant Hill, PA

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

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in September: 55.4°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in September
Pleasant Hill, PA

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Pleasant Hill, PA

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

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Pleasant Hill, PA

Average humidity in September - Pleasant Hill, PA
  • Average humidity in September: 80%

The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in September
Pleasant Hill, PA

Average rainfall in September - Pleasant Hill, PA
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is August (2.13").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days in September
Pleasant Hill, PA

Average rainfall days in September - Pleasant Hill, PA
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in September
Pleasant Hill, PA

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

The month with the highest snowfall is January (1.97").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Pleasant Hill, PA

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

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Pleasant Hill, PA

Average daylight in September / Average sunshine in September - Pleasant Hill, 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 5min

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).

Average sunshine days in September
Pleasant Hill, PA

Average sunshine days in September - Pleasant Hill, PA
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in September
Pleasant Hill, PA

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

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

Average cloud cover in September
Pleasant Hill, PA

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

The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Pleasant Hill, PA

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

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

Pleasant Hill, Pennsylvania, USA

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