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
As August transitions into September, Madison sees a gentle drop in the average high-temperature, transitioning from a moderately hot 76.5°F (24.7°C) to an agreeable 69.1°F (20.6°C). The temperature in Madison dips to an average of 48°F (8.9°C) during September nights.Humidity
In Madison, the average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall in Madison. Rain falls for 10.4 days and accumulates 1.42" (36mm) of precipitation.Snowfall
In Madison, New Hampshire, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 30min.On the first day of the month, sunrise is at 6:08 am and sunset at 7:19 pm. On the last day of September, in Madison, sunrise is at 6:41 am and sunset at 6:26 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Madison is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 3 in September translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Madison?
What is the average humidity in September in Madison?
What is the driest month in Madison?
How much does it rain in Madison in September?
When it does not snow in Madison?
Does it snow in Madison in September?
What is the average length of the day in September in Madison?
When is the sunrise / sunset in September in Madison?
How long on average sun shines in September in Madison?
What is the UV index reading in September in Madison?
Average temperature in September
Madison, NH
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in September: 48°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in September
Madison, 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
Madison, NH
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is January (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Madison, NH
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are May and November (77%).
Average rainfall in September
Madison, NH
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in September
Madison, NH
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in September
Madison, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (11.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Madison, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Madison, 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: 9h and 0min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Madison, NH
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is April (10.6 days).
Average UV index in September
Madison, NH
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Madison, NH
- Average cloud cover in September: 38
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Madison, NH
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
Madison, New Hampshire, USA
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