September weather forecast
Lisbon, NH

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Weather in September

September, the first month of the autumn in Lisbon, is still a refreshing month, with an average temperature varying between 66.9°F (19.4°C) and 46.8°F (8.2°C).

Temperature

In Lisbon, entering September brings a subtle temperature decrement, reducing from August's moderately hot 74.1°F (23.4°C) to a comfortable 66.9°F (19.4°C). During September, the nighttime temperature averages of 46.8°F (8.2°C).

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 2.09" (53mm) of precipitation.

Snowfall

In Lisbon, snow does not fall in June through September.

Daylight

In Lisbon, the average length of the day in September is 12h and 30min.
On the first day of the month, sunrise is at 6:11 am and sunset at 7:23 pm. On the last day of September, in Lisbon, sunrise is at 6:45 am and sunset at 6:29 pm EDT.

Sunshine

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

UV index

In September, the average daily maximum UV index in Lisbon is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 3 during September morphs into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What is the usual temperature for Lisbon in September?

The average high-temperature and low-temperature in Lisbon, New Hampshire, during September are 66.9°F (19.4°C) and 46.8°F (8.2°C) respectively.

What is the average humidity in September in Lisbon?

In September, the average relative humidity is 80%.

What is the driest month in Lisbon?

September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 2.09" (53mm) of precipitation.

How much does it rain in Lisbon in September?

In Lisbon, in September, during 12.5 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow in Lisbon?

In Lisbon, New Hampshire, snow does not fall in June through September.

Does it snow in Lisbon in September?

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

How many hours of daylight does Lisbon have in September?

In September, the average day length in Lisbon, New Hampshire, is 12h and 30min.

When are sunrise and sunset in September in Lisbon?

In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:29 pm EDT.

How many hours of sunshine does Lisbon have in September?

In Lisbon, New Hampshire, the average sunshine duration in September is 8.4h.

How high is the UV index in September in Lisbon?

In Lisbon, New Hampshire, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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
Lisbon, NH

Average temperature in September - Lisbon, NH
  • Average high temperature in September: 66.9°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 (22.5°F).

  • Average low temperature in September: 46.8°F

The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

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Average pressure in September
Lisbon, NH

Average pressure in September - Lisbon, 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
Lisbon, NH

Average wind speed in September - Lisbon, NH
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in September
Lisbon, NH

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

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).

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Average rainfall in September
Lisbon, NH

Average rainfall in September - Lisbon, NH
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is September (2.09").

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Average rainfall days in September
Lisbon, NH

Average rainfall days in September - Lisbon, NH
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (6.7 days).

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Average snowfall in September
Lisbon, NH

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

The month with the highest snowfall is February (13.58").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Lisbon, NH

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

The month with the highest number of snowfall days is January (21.1 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
Lisbon, NH

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).

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Average sunshine days in September
Lisbon, NH

Average sunshine days in September - Lisbon, NH
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (5.9 days).

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Average UV index in September
Lisbon, NH

Average UV index in September - Lisbon, NH
  • Average UV index in September: 3

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

Average cloud cover in September - Lisbon, NH
  • Average cloud cover in September: 40

The month with the most cloud cover is February (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 39).

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Average visibility in September
Lisbon, NH

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

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

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Lisbon, New Hampshire, USA

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