September weather forecast
Andover, NY

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Weather in September

The first month of the autumn, September, is still a pleasant month in Andover, New York, with an average temperature ranging between min 49.6°F (9.8°C) and max 69.4°F (20.8°C).

Temperature

September signifies a minor drop in average high-temperature, transitioning from a warm 76.3°F (24.6°C) in August to an agreeable 69.4°F (20.8°C). In the month of September, Andover experiences an average low-temperature of 49.6°F (9.8°C).

Humidity

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

Rainfall

In September, the rain falls for 14.1 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. In Andover, during the entire year, the rain falls for 158 days and collects up to 23.5" (597mm) of precipitation.

Snowfall

June through September are months without snowfall in Andover, New York.

Daylight

The average length of the day in September in Andover is 12h and 28min.
On the first day of the month, sunrise is at 6:37 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:53 pm EDT.

Sunshine

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

UV index

In Andover, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 3 during September translates into the following guidance:
Prioritize safety - Suggestions to prevent sun damage are offered. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What is the usual temperature for Andover in September?

In Andover, 69.4°F (20.8°C) is the average high-temperature and 49.6°F (9.8°C) is the average low-temperature during September.

What is the average humidity in September in Andover?

In September, the average relative humidity is 81%.

How much does it rain in Andover in September?

In Andover, New York, in September, it is raining for 14.1 days, with typically 1.61" (41mm) of accumulated precipitation.

When it does not snow in Andover?

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

Does it snow in Andover in September?

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

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

The average day length in September is 12h and 28min.

What time are sunrise and sunset in September in Andover?

On the first day of September, sunrise is at 6:37 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:53 pm EDT.

How many hours of sunshine does Andover have in September?

The average sunshine duration in September in Andover is 8.4h.

What is the UV index reading in September in Andover?

In Andover, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Andover, NY

Average temperature in September - Andover, 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: 49.6°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

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Average pressure in September
Andover, NY

Average pressure in September - Andover, 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 (29.93"Hg).

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Average wind speed in September
Andover, NY

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

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in September
Andover, NY

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

The months with the highest relative humidity are January, February and December (87%).
The month with the lowest relative humidity is May (78%).

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Average rainfall in September
Andover, NY

Average rainfall in September - Andover, NY
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is October (2.52").
The driest month (with the least rainfall) is January (1.5").

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Average rainfall days in September
Andover, NY

Average rainfall days in September - Andover, NY
  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in September
Andover, NY

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

The month with the highest snowfall is February (7.32").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Andover, NY

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

The month with the highest number of snowfall days is January (18.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Andover, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

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Average sunshine days in September
Andover, NY

Average sunshine days in September - Andover, NY
  • Average sunshine days in September: 13.6 days

The month with the most sunshine days is September (13.6 days).
The month with the least sunshine days is February (6.4 days).

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Average UV index in September
Andover, NY

Average UV index in September - Andover, 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).

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Average cloud cover in September
Andover, NY

Average cloud cover in September - Andover, NY
  • Average cloud cover in September: 43

The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 39).

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Average visibility in September
Andover, NY

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

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

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Andover, New York, USA

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