September weather forecast
Dundee, NH

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Weather in September

September, the first month of the autumn in Dundee, is still a comfortable month, with an average temperature varying between 47.3°F (8.5°C) and 67.6°F (19.8°C).

Temperature

With the commencement of September, Dundee records a moderate temperature decline, with the average high easing from August's warm 74.8°F (23.8°C) to an enjoyable 67.6°F (19.8°C). Dundee's average low-temperature is measured at a frosty 47.3°F (8.5°C) during September.

Humidity

The average relative humidity in September in Dundee is 80%.

Rainfall

September is the month with the least rainfall. Rain falls for 6.6 days and accumulates 0.39" (10mm) of precipitation.

Snowfall

June through September are months without snowfall in Dundee.

Daylight

In Dundee, New Hampshire, the average length of the day in September is 12h and 30min.
On the first day of September in Dundee, New Hampshire, sunrise is at 6:08 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:26 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What is the average September temperature in Dundee?

In September, the average high-temperature and low-temperature in Dundee are 67.6°F (19.8°C) and 47.3°F (8.5°C) respectively.

What is the average humidity in September in Dundee?

In September, the average relative humidity in Dundee, New Hampshire, is 80%.

What is the driest month in Dundee?

September is the month with the least rainfall in Dundee. Rain falls for 6.6 days and accumulates 0.39" (10mm) of precipitation.

How much does it rain in Dundee in September?

In September, in Dundee, New Hampshire, the rain falls for 6.6 days. Throughout September, 0.39" (10mm) of precipitation is accumulated.

When it does not snow in Dundee?

June through September are months without snowfall in Dundee.

Does it snow in Dundee in September?

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

How many hours of daylight does Dundee have in September?

In Dundee, the average day length in September is 12h and 30min.

When are sunrise and sunset in September in Dundee?

On the first day of September in Dundee, New Hampshire, sunrise is at 6:08 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:26 pm EDT.

How many hours of sunshine does Dundee have in September?

In September, the average sunshine duration in Dundee, New Hampshire, is 8.6h.

How high is the UV index in September in Dundee?

The average daily maximum UV index in September in Dundee, New Hampshire, is 3. A UV Index value 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
Dundee, NH

Average temperature in September - Dundee, NH
  • Average high temperature in September: 67.6°F

The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in September: 47.3°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in September
Dundee, NH

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

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Dundee, NH

Average wind speed in September - Dundee, NH
  • Average wind speed in September: 4.5mph

The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in September
Dundee, NH

Average humidity in September - Dundee, NH
  • Average humidity in September: 80%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (77%).

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Average rainfall in September
Dundee, NH

Average rainfall in September - Dundee, NH
  • Average rainfall in September: 0.39"

The wettest months (with the highest rainfall) are April and October (1.46").
The driest month (with the least rainfall) is September (0.39").

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Average rainfall days in September
Dundee, NH

Average rainfall days in September - Dundee, NH
  • Average rainfall days in September: 6.6 days

The months with the highest number of rainy days are May and July (10.3 days).
The month with the least rainy days is February (3.7 days).

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Average snowfall in September
Dundee, NH

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

The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Dundee, NH

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

The month with the highest number of snowfall days is February (8.4 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
Dundee, NH

Average daylight in September / Average sunshine in September - Dundee, 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: 8h and 54min).

  • Average sunshine in September: 8h and 4min

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
Dundee, NH

Average sunshine days in September - Dundee, NH
  • Average sunshine days in September: 21.5 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (18.2 days).

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Average UV index in September
Dundee, NH

Average UV index in September - Dundee, NH
  • 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 February and December (UV index 1).

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Average cloud cover in September
Dundee, NH

Average cloud cover in September - Dundee, NH
  • Average cloud cover in September: 39

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 38).

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Average visibility in September
Dundee, NH

Average visibility in September - Dundee, NH
  • Average visibility in September: 4mi

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

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Dundee, New Hampshire, USA

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