September weather forecast
Durham, NY

Share

Weather in September

September, the first month of the autumn in Durham, is also an agreeable month, with an average temperature varying between 49.1°F (9.5°C) and 69.4°F (20.8°C).

Temperature

The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a warm 76.6°F (24.8°C) in August to an agreeable 69.4°F (20.8°C). An average low-temperature of 49.1°F (9.5°C) is recorded during the nights in September.

Humidity

The average relative humidity in September is 81%.

Rainfall

In Durham, during September, the rain falls for 12.1 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, in Durham, New York, there are 152.5 rainfall days, and 27.24" (692mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Durham, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:22 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:39 pm EDT.

Sunshine

The average sunshine in September in Durham is 8.7h.

UV index

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 3 in September transforms into this advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
[Resources]

Frequently asked questions

What is the usual temperature for Durham in September?

In Durham, 69.4°F (20.8°C) is the average high-temperature and 49.1°F (9.5°C) is the average low-temperature during September.

What is the average humidity in September in Durham?

In September, the average relative humidity in Durham, New York, is 81%.

How many days does it rain in September in Durham?

In Durham, in September, during 12.1 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

When it does not snow in Durham?

In Durham, New York, snow does not fall in June through September.

Does it snow in Durham in September?

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

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

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

When is the sunrise / sunset in September in Durham?

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 7:30 pm. On the last day of the month, in Durham, New York, sunrise is at 6:53 am and sunset at 6:39 pm EDT.

How long on average sun shines in September in Durham?

In Durham, New York, the average sunshine duration in September is 8.7h.

How high is the UV index in September in Durham?

In Durham, New York, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from 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
Durham, NY

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

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in September: 49.1°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

[Resources]

Average pressure in September
Durham, NY

Average pressure in September - Durham, 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).

[Resources]

Average wind speed in September
Durham, NY

Average wind speed in September - Durham, NY
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

[Resources]

Average humidity in September
Durham, NY

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

The months with the highest relative humidity are February and December (85%).
The months with the lowest relative humidity are April, June and July (78%).

[Resources]

Average rainfall in September
Durham, NY

Average rainfall in September - Durham, NY
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is February (1.46").

[Resources]

Average rainfall days in September
Durham, NY

Average rainfall days in September - Durham, NY
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (6.3 days).

[Resources]

Average snowfall in September
Durham, NY

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

The month with the highest snowfall is December (6.65").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in September
Durham, NY

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

The month with the highest number of snowfall days is February (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Durham, 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 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

[Resources]

Average sunshine days in September
Durham, NY

Average sunshine days in September - Durham, NY
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (9.8 days).

[Resources]

Average UV index in September
Durham, NY

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

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

[Resources]

Average cloud cover in September
Durham, NY

Average cloud cover in September - Durham, NY
  • Average cloud cover in September: 40

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).

[Resources]

Average visibility in September
Durham, NY

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

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

[Resources]

Durham, New York, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location