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 transition into September subtly indicates a reduction in the average high-temperature, down to a still moderately hot 73.4°F (23°C) from August's warm 81°F (27.2°C). Nighttime temperature in Glastonbury Center lowers to an average of 55.6°F (13.1°C) in September.Humidity
In September, the average relative humidity in Glastonbury Center is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 1.93" (49mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Glastonbury Center, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:17 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:33 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Around midday, solar radiation is most harmful; hence, exposure should be limited. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What are the temperatures in Glastonbury Center in September?
What is the average humidity in September in Glastonbury Center?
What is the driest month in Glastonbury Center?
How much does it rain in Glastonbury Center in September?
When it does not snow in Glastonbury Center?
What is the average length of the day in September in Glastonbury Center?
When is the sunrise / sunset in September in Glastonbury Center?
How long on average sun shines in September in Glastonbury Center?
How high is the UV index in September in Glastonbury Center?
Average temperature in September
Glastonbury Center, CT
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Glastonbury Center, CT
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Glastonbury Center, CT
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Glastonbury Center, CT
- Average humidity in September: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).
Average rainfall in September
Glastonbury Center, CT
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Glastonbury Center, CT
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in September
Glastonbury Center, CT
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Glastonbury Center, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Glastonbury Center, CT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Glastonbury Center, CT
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in September
Glastonbury Center, CT
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Glastonbury Center, CT
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Glastonbury Center, CT
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May and September (5mi).
Glastonbury Center, Connecticut, USA
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