September weather forecastIdlewilde, NH
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Idlewilde, New Hampshire, with an average temperature varying between 64.2°F (17.9°C) and 45°F (7.2°C).Temperature
Idlewilde in September experiences a gentle temperature dip, with average high-temperatures reducing from a pleasant 71.1°F (21.7°C) in August to a refreshing 64.2°F (17.9°C). Idlewilde's September nights cool down to an average low-temperature of 45°F (7.2°C).Humidity
The average relative humidity in September is 82%.Rainfall
In September, the rain falls for 14.7 days. Throughout September, 2.76" (70mm) of precipitation is accumulated. Throughout the year, there are 167.1 rainfall days, and 33.98" (863mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:07 am and sunset at 7:21 pm. On the last day of September, in Idlewilde, sunrise is at 6:42 am and sunset at 6:26 pm EDT.
Sunshine
In Idlewilde, the average sunshine in September is 7.6h.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 ordinary individuals.Note: The UV index of 3 during September translates into the following guidance:
Ensure safety - Imperative it is to shield skin and eyes from damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Idlewilde, NH
- Average high temperature in September: 64.2°F
The warmest month (with the highest average high temperature) is July (73.4°F).
The month with the lowest average high temperature is January (20.3°F).
- Average low temperature in September: 45°F
The month with the highest average low temperature is July (53.2°F).
The coldest month (with the lowest average low temperature) is January (7°F).
Average pressure in September
Idlewilde, NH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Idlewilde, NH
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are February, March and April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Idlewilde, NH
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Idlewilde, NH
- Average rainfall in September: 2.76"
The wettest month (with the highest rainfall) is October (3.5").
The driest month (with the least rainfall) is February (2.32").
Average rainfall days in September
Idlewilde, NH
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is June (20 days).
The month with the least rainy days is February (6 days).
Average snowfall in September
Idlewilde, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Idlewilde, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (25.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Idlewilde, NH
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 7h and 36min
The months with the most sunshine are July and August (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in September
Idlewilde, NH
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is September (12.5 days).
The month with the least sunshine days is February (3.3 days).
Average UV index in September
Idlewilde, 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, March, November and December (UV index 1).
Average cloud cover in September
Idlewilde, NH
- Average cloud cover in September: 48
The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 46).
Average visibility in September
Idlewilde, 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).
