September weather forecast
Columbus, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in Columbus, New York, with an average temperature fluctuating between 49.6°F (9.8°C) and 68.9°F (20.5°C).

Temperature

The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a warm 75.9°F (24.4°C) in August to a pleasant 68.9°F (20.5°C). The low-temperature averages to a chilly 49.6°F (9.8°C) during the nights of September.

Humidity

The average relative humidity in September is 81%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.7 days and typically collects 2.28" (58mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Columbus, New York, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:27 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:44 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In Columbus, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The high-temperature during September is 68.9°F (20.5°C) and the low-temperature is 49.6°F (9.8°C).

What is the average humidity in September?

The average relative humidity in September is 81%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 13.7 days and typically collects 2.28" (58mm) of precipitation.

How many days does it rain in September?

In Columbus, in September, it is raining for 13.7 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in Columbus in September?

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

What is the average length of the day in September?

In Columbus, the average day length in September is 12h and 29min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:44 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.6h.

How high is the UV index in September?

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to 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
Columbus, NY

Average temperature in September - Columbus, NY
  • Average high temperature in September: 68.9°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in September: 49.6°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in September
Columbus, NY

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

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Columbus, NY

Average wind speed in September - Columbus, NY
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in September
Columbus, NY

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

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).

Average rainfall in September
Columbus, NY

Average rainfall in September - Columbus, NY
  • Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (2.28").

Average rainfall days in September
Columbus, NY

Average rainfall days in September - Columbus, NY
  • Average rainfall days in September: 13.7 days

The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in September
Columbus, NY

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

The month with the highest snowfall is February (9.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Columbus, NY

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

The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

Average sunshine days in September
Columbus, NY

Average sunshine days in September - Columbus, NY
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (4.6 days).

Average UV index in September
Columbus, NY

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

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

Average cloud cover in September
Columbus, NY

Average cloud cover in September - Columbus, NY
  • Average cloud cover in September: 39

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in September
Columbus, NY

Average visibility in September - Columbus, NY
  • Average visibility in September: 5mi

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

Columbus, New York, USA

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