September weather forecast
East Andover, NH

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Weather in September

The first month of the autumn, September, is still a pleasant month in East Andover, New Hampshire, with an average temperature fluctuating between 49.8°F (9.9°C) and 69.8°F (21°C).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from a moderately hot 77.9°F (25.5°C) in August to a pleasant 69.8°F (21°C). During September, East Andover experiences an average low-temperature of 49.8°F (9.9°C) at night.

Humidity

The average relative humidity in September in East Andover is 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.1 days and accumulates 1.77" (45mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:11 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:44 am and sunset at 6:29 pm EDT.

Sunshine

In East Andover, the average sunshine in September is 8.2h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum daily UV index of 4 during September morphs into the following directions:
Prioritize safety - Suggestions to prevent sun damage are offered. Around midday, solar radiation is most harmful; hence, exposure should be limited. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What is the average September temperature in East Andover?

September temperatures vary between a high-temperature of 69.8°F (21°C) and a low-temperature of 49.8°F (9.9°C).

What is the average humidity in September in East Andover?

The average relative humidity in September in East Andover, New Hampshire, is 79%.

What is the driest month in East Andover?

September is the month with the least rainfall. Rain falls for 11.1 days and accumulates 1.77" (45mm) of precipitation.

How many days does it rain in September in East Andover?

In East Andover, in September, it is raining for 11.1 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow in East Andover?

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

Does it snow in East Andover in September?

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

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

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

When are sunrise and sunset in September in East Andover?

In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:21 pm. On the last day of the month, in East Andover, New Hampshire, sunrise is at 6:44 am and sunset at 6:29 pm EDT.

How long on average sun shines in September in East Andover?

In September, the average sunshine duration is 8.2h.

What is the UV index reading in September in East Andover?

In East Andover, New Hampshire, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe 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
East Andover, NH

Average temperature in September - East Andover, NH
  • Average high temperature in September: 69.8°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in September: 49.8°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

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Average pressure in September
East Andover, NH

Average pressure in September - East Andover, 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 (29.91"Hg).

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Average wind speed in September
East Andover, NH

Average wind speed in September - East Andover, NH
  • Average wind speed in September: 4.9mph

The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
East Andover, NH

Average humidity in September - East Andover, NH
  • Average humidity in September: 79%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in September
East Andover, NH

Average rainfall in September - East Andover, NH
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in September
East Andover, NH

Average rainfall days in September - East Andover, NH
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is February (6.6 days).

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Average snowfall in September
East Andover, NH

Average snowfall in September - East Andover, NH
  • Average snowfall in September: 0"

The month with the highest snowfall is February (8.78").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
East Andover, NH

Average snowfall days in September - East Andover, NH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.4 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
East Andover, NH

Average daylight in September / Average sunshine in September - East Andover, NH
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in September
East Andover, NH

Average sunshine days in September - East Andover, NH
  • Average sunshine days in September: 17.3 days

The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is March (12.5 days).

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Average UV index in September
East Andover, NH

Average UV index in September - East Andover, NH
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in September
East Andover, NH

Average cloud cover in September - East Andover, NH
  • Average cloud cover in September: 39

The months with the most cloud cover are February and March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in September
East Andover, NH

Average visibility in September - East Andover, NH
  • Average visibility in September: 4mi

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

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East Andover, New Hampshire, USA

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