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
September reveals a small adjustment in temperature, transitioning from an average high of a warm 74.5°F (23.6°C) in August to a comfortable 67.5°F (19.7°C). Bartlett's nighttime temperature in September drops to an average of 47.3°F (8.5°C).Humidity
The average relative humidity in September in Bartlett is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.7 days and typically collects 2.01" (51mm) of precipitation.Snowfall
In Bartlett, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:08 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:42 am and sunset at 6:27 pm EDT.
Sunshine
In Bartlett, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the temperature in September in Bartlett?
What is the average humidity in September in Bartlett?
What is the driest month in Bartlett?
How much does it rain in Bartlett in September?
When it does not snow in Bartlett?
Does it snow in Bartlett in September?
How many hours of daylight does Bartlett have in September?
When is the sunrise / sunset in September in Bartlett?
How many hours of sunshine does Bartlett have in September?
How high is the UV index in September in Bartlett?
Average temperature in September
Bartlett, NH
- Average high temperature in September: 67.5°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 (54.9°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in September
Bartlett, 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
Bartlett, NH
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Bartlett, NH
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Bartlett, NH
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is October (3.9").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Bartlett, NH
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (10.9 days).
Average snowfall in September
Bartlett, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (16.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bartlett, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bartlett, 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 2min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Bartlett, 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 (7.8 days).
Average UV index in September
Bartlett, NH
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Bartlett, NH
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Bartlett, NH
- Average visibility in September: 4mi
The months with the highest visibility are May, June, July, August and November (5mi).
The months with the lowest visibility are January, February, March, April, September, October and December (4mi).
Bartlett, New Hampshire, USA
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