September weather forecast
Bolivar, NY

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Weather in September

September, the first month of the autumn in Bolivar, is still a pleasant month, with an average temperature varying between 49.1°F (9.5°C) and 69.4°F (20.8°C).

Temperature

With the onset of September, Bolivar experiences a modest temperature adjustment, with the average high-temperature gently receding from a moderately hot 75.7°F (24.3°C) in August to an agreeable 69.4°F (20.8°C). An average nighttime temperature of 49.1°F (9.5°C) is witnessed throughout September.

Humidity

In Bolivar, the average relative humidity in September is 81%.

Rainfall

The months with the least rainfall are January, March and September Rain falls for 12.5 days and accumulates 1.22" (31mm) of rain.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:55 pm EDT.

Sunshine

In Bolivar, the average sunshine in September is 8h.

UV index

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Bolivar in September?

An average high-temperature, in September, in Bolivar, is 69.4°F (20.8°C) and the average low-temperature is 49.1°F (9.5°C).

What is the average humidity in September in Bolivar?

In September, the average relative humidity is 81%.

What is the driest month in Bolivar?

The months with the least rainfall are January, March and September Rain falls for 12.5 days and accumulates 1.22" (31mm) of rain.

How many days does it rain in September?

In Bolivar, in September, it is raining for 12.5 days, with typically 1.22" (31mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Bolivar have in September?

In September, the average day length is 12h and 28min.

When is the sunrise / sunset in September in Bolivar?

In September, on the first day of the month, sunrise is at 6:38 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:55 pm EDT.

How many hours of sunshine does Bolivar have in September?

The average sunshine duration in September in Bolivar is 8h.

How high is the UV index in September in Bolivar?

In Bolivar, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents 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
Bolivar, NY

Average temperature in September - Bolivar, NY
  • Average high temperature in September: 69.4°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in September: 49.1°F

The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in September
Bolivar, NY

Average pressure in September - Bolivar, NY
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Bolivar, NY

Average wind speed in September - Bolivar, NY
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in September
Bolivar, NY

Average humidity in September - Bolivar, NY
  • Average humidity in September: 81%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (78%).

Average rainfall in September
Bolivar, NY

Average rainfall in September - Bolivar, NY
  • Average rainfall in September: 1.22"

The wettest month (with the highest rainfall) is April (2.05").
The driest months (with the least rainfall) are January, March and September (1.22").

Average rainfall days in September
Bolivar, NY

Average rainfall days in September - Bolivar, NY
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in September
Bolivar, NY

Average snowfall in September - Bolivar, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.47").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Bolivar, NY

Average snowfall days in September - Bolivar, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (19.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Bolivar, NY

Average daylight in September / Average sunshine in September - Bolivar, NY
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The months with the least sunshine are January and December (Average sunshine: 2h and 30min).

Average sunshine days in September
Bolivar, NY

Average sunshine days in September - Bolivar, NY
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is September (14.7 days).
The month with the least sunshine days is February (7.8 days).

Average UV index in September
Bolivar, NY

Average UV index in September - Bolivar, NY
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in September
Bolivar, NY

Average cloud cover in September - Bolivar, NY
  • Average cloud cover in September: 46

The month with the most cloud cover is January (Cloud cover 78).
The months with the least cloud cover are July and August (Cloud cover 42).

Average visibility in September
Bolivar, NY

Average visibility in September - Bolivar, NY
  • Average visibility in September: 4mi

The months with the highest visibility are February, March, April, May, June, July, October, November and December (5mi).
The months with the lowest visibility are January, August and September (4mi).

Bolivar, New York, USA

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