September weather forecast
Auburn, NH

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Weather in September

September, the first month of the autumn in Auburn, is also an agreeable month, with an average temperature ranging between max 72.1°F (22.3°C) and min 54°F (12.2°C).

Temperature

Auburn's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's moderately hot 80.1°F (26.7°C) to a pleasant 72.1°F (22.3°C). Throughout the nights in September, an average low-temperature of 54°F (12.2°C) is noted.

Humidity

In Auburn, the average relative humidity in September is 77%.

Rainfall

In Auburn, in September, it is raining for 8.4 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, there are 104.4 rainfall days, and 12.95" (329mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Auburn.

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of September, sunrise is at 6:10 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:27 pm EDT.

Sunshine

In Auburn, the average sunshine in September is 8.4h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

During September, Auburn experiences an average high-temperature of 72.1°F (22.3°C) and a low-temperature of 54°F (12.2°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 86°F (30°C).

What is the average humidity in September?

In Auburn, the average relative humidity in September is 77%.

How many days does it rain in September?

In Auburn, in September, it is raining for 8.4 days, with typically 0.79" (20mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Auburn have in September?

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

When are sunrise and sunset in September?

On the first day of September in Auburn, New Hampshire, sunrise is at 6:10 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:27 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.4h.

What is the UV index intensity in September?

In September, the average daily maximum UV index in Auburn is 4. A UV Index value of 3 to 5 symbolizes 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
Auburn, NH

Average temperature in September - Auburn, NH
  • Average high temperature in September: 72.1°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in September: 54°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in September
Auburn, NH

Average pressure in September - Auburn, NH
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Auburn, NH

Average wind speed in September - Auburn, NH
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
Auburn, NH

Average humidity in September - Auburn, NH
  • Average humidity in September: 77%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).

Average rainfall in September
Auburn, NH

Average rainfall in September - Auburn, NH
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is October (1.38").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in September
Auburn, NH

Average rainfall days in September - Auburn, NH
  • Average rainfall days in September: 8.4 days

The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is January (4.1 days).

Average snowfall in September
Auburn, NH

Average snowfall in September - Auburn, NH
  • Average snowfall in September: 0"

The month with the highest snowfall is December (2.99").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Auburn, NH

Average snowfall days in September - Auburn, NH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Auburn, NH

Average daylight in September / Average sunshine in September - Auburn, NH
  • 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Auburn, NH

Average sunshine days in September - Auburn, NH
  • Average sunshine days in September: 20 days

The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is June (16.7 days).

Average UV index in September
Auburn, NH

Average UV index in September - Auburn, NH
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (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
Auburn, NH

Average cloud cover in September - Auburn, NH
  • Average cloud cover in September: 37

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Auburn, NH

Average visibility in September - Auburn, NH
  • Average visibility in September: 5mi

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

Auburn, New Hampshire, USA

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