September weather forecastMilan, NH
September
Weather in September
September, the first month of the autumn in Milan, is still a comfortable month, with an average temperature varying between 45.5°F (7.5°C) and 65.8°F (18.8°C).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a pleasant 73.2°F (22.9°C) in August to a refreshing 65.8°F (18.8°C). During September, the average low-temperature in Milan is a chilly 45.5°F (7.5°C).Humidity
In Milan, the average relative humidity in September is 81%.Rainfall
In September, the rain falls for 12.5 days. Throughout September, 2.13" (54mm) of precipitation is accumulated. Throughout the year, in Milan, there are 154 rainfall days, and 29.13" (740mm) of precipitation is accumulated.Snowfall
In Milan, snow does not fall in June through September.Daylight
In Milan, New Hampshire, the average length of the day in September is 12h and 31min.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, in Milan, sunrise is at 6:42 am and sunset at 6:26 pm EDT.
Sunshine
In Milan, the average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Milan, NH
- Average high temperature in September: 65.8°F
The warmest month (with the highest average high temperature) is July (74.7°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in September: 45.5°F
The month with the highest average low temperature is July (53.8°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in September
Milan, NH
- Average pressure in September: 30.04"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
Milan, NH
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Milan, NH
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Milan, NH
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is July (2.01").
Average rainfall days in September
Milan, NH
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Milan, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (13.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Milan, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Milan, NH
- Average daylight in September: 12h and 30min
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 0min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Milan, NH
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is September (14.8 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in September
Milan, 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
Milan, NH
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility in September
Milan, NH
- Average visibility in September: 4mi
The months with the highest visibility are May, June and November (5mi).
The months with the lowest visibility are January, February, March, April, July, August, September, October and December (4mi).
