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
Bretton Woods's progression into September involves a gentle drop in the average high-temperature, from a pleasant 72.9°F (22.7°C) in August to a refreshing 65.8°F (18.8°C). Bretton Woods experiences a nighttime temperature average of 46°F (7.8°C) during September.Humidity
In September, the average relative humidity is 81%.Rainfall
The month with the least rainfall in Bretton Woods is September, when the rain falls for 13.2 days and typically collects 2.24" (57mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Bretton Woods, New Hampshire, is 12h and 30min.On the first day of the month, sunrise is at 6:09 am and sunset at 7:21 pm. On the last day of September, in Bretton Woods, sunrise is at 6:43 am and sunset at 6:27 pm EDT.
Sunshine
In September, the average sunshine in Bretton Woods is 7.8h.UV index
In September, the average daily maximum UV index in Bretton Woods is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What are September temperatures in Bretton Woods?
What is the average humidity in September in Bretton Woods?
What is the driest month in Bretton Woods?
How much does it rain in Bretton Woods in September?
When it does not snow in Bretton Woods?
Does it snow in Bretton Woods in September?
What is the average length of the day in September in Bretton Woods?
When is the sunrise / sunset in September in Bretton Woods?
How long on average sun shines in September in Bretton Woods?
What is the UV index reading in September in Bretton Woods?
Average temperature in September
Bretton Woods, NH
- Average high temperature in September: 65.8°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (21.9°F).
- Average low temperature in September: 46°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 (8.6°F).
Average pressure in September
Bretton Woods, 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
Bretton Woods, NH
- Average wind speed in September: 4.7mph
The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Bretton Woods, NH
- Average humidity in September: 81%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Bretton Woods, NH
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in September
Bretton Woods, NH
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in September
Bretton Woods, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (17.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bretton Woods, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bretton Woods, 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: 7h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in September
Bretton Woods, NH
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in September
Bretton Woods, 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
Bretton Woods, NH
- Average cloud cover in September: 45
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility in September
Bretton Woods, NH
- Average visibility in September: 4mi
The months with the highest visibility are May, June and July (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October, November and December (4mi).
Bretton Woods, New Hampshire, USA
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