Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
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?
What is the average humidity in September in Lisbon?
What is the driest month in Lisbon?
How much does it rain in Lisbon in September?
When it does not snow in Lisbon?
Does it snow in Lisbon in September?
How many hours of daylight does Lisbon have in September?
When are sunrise and sunset in September in Lisbon?
How many hours of sunshine does Lisbon have in September?
How high is the UV index in September in Lisbon?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Lisbon, New Hampshire, USA
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