September weather forecast
Marysville, PA

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Weather in September

The first month of the autumn, September, is still a warm month in Marysville, Pennsylvania, with an average temperature fluctuating between 55.6°F (13.1°C) and 74.3°F (23.5°C).

Temperature

September's onset introduces a mild reduction in the average high-temperature, from 81.5°F (27.5°C) in August to a still warm 74.3°F (23.5°C). An average low-temperature of 55.6°F (13.1°C) is common in Marysville during the nights of September.

Humidity

In September, the average relative humidity in Marysville is 78%.

Rainfall

In Marysville, in September, during 9.7 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, in Marysville, Pennsylvania, there are 122.3 rainfall days, and 11.73" (298mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Marysville, Pennsylvania.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September in Marysville, sunrise is at 6:35 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm EDT.

Sunshine

The average sunshine in September in Marysville is 9h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, a regular UV index of 4 translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What are the temperatures in Marysville in September?

During September, Marysville experiences an average high-temperature of 74.3°F (23.5°C) and a low-temperature of 55.6°F (13.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Marysville?

The average relative humidity in September in Marysville is 78%.

How many days does it rain in September in Marysville?

In Marysville, Pennsylvania, in September, during 9.7 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

When it does not snow in Marysville?

May through October are months without snowfall.

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

In September, the average day length in Marysville, Pennsylvania, is 12h and 27min.

When are sunrise and sunset in September in Marysville?

On the first day of September in Marysville, Pennsylvania, sunrise is at 6:35 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm EDT.

How many hours of sunshine does Marysville have in September?

In September, the average sunshine duration in Marysville, Pennsylvania, is 9h.

What is the UV index intensity in September in Marysville?

In September, the average daily maximum UV index in Marysville, Pennsylvania, 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
Marysville, PA

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

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in September: 55.6°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

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Average pressure in September
Marysville, PA

Average pressure in September - Marysville, 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 (29.95"Hg).

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Average wind speed in September
Marysville, PA

Average wind speed in September - Marysville, PA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in September
Marysville, PA

Average humidity in September - Marysville, PA
  • Average humidity in September: 78%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are March and April (75%).

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Average rainfall in September
Marysville, PA

Average rainfall in September - Marysville, PA
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is August (1.3").
The driest months (with the least rainfall) are January and February (0.71").

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Average rainfall days in September
Marysville, PA

Average rainfall days in September - Marysville, PA
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall in September
Marysville, PA

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

The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Marysville, PA

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

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Marysville, 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: 9h and 0min

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

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Average sunshine days in September
Marysville, PA

Average sunshine days in September - Marysville, PA
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.1 days).

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Average UV index in September
Marysville, PA

Average UV index in September - Marysville, 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).

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Average cloud cover in September
Marysville, PA

Average cloud cover in September - Marysville, PA
  • Average cloud cover in September: 37

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in September
Marysville, PA

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

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

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Marysville, Pennsylvania, USA

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