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
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 73.9°F (23.3°C) to an enjoyable 66.6°F (19.2°C). During September, Gorham's temperature averages to a chilly 46.2°F (7.9°C) at night.Humidity
In Gorham, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall in Gorham, New Hampshire. Rain falls for 12.1 days and accumulates 1.85" (47mm) of precipitation.Snowfall
In Gorham, New Hampshire, 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 6:26 pm EDT.
Sunshine
In September, the average sunshine in Gorham is 8.3h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 3 during September translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What are September temperatures in Gorham?
What is the average humidity in September in Gorham?
What is the driest month in Gorham?
How many days does it rain in September in Gorham?
When it does not snow in Gorham?
Does it snow in Gorham in September?
How many hours of daylight does Gorham have in September?
When are sunrise and sunset in September in Gorham?
How many hours of sunshine does Gorham have in September?
What is the UV index reading in September in Gorham?
Average temperature in September
Gorham, NH
- Average high temperature in September: 66.6°F
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in September: 46.2°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in September
Gorham, 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
Gorham, NH
- Average wind speed in September: 4.7mph
The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Gorham, NH
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Gorham, NH
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is October (3.43").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Gorham, NH
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is October (17.5 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Gorham, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (12.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Gorham, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gorham, 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 48min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Gorham, NH
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (6.9 days).
Average UV index in September
Gorham, 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
Gorham, NH
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Gorham, NH
- Average visibility in September: 4mi
The months with the highest visibility are May, June, July and November (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October and December (4mi).
Gorham, New Hampshire, USA
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