September weather forecastHawleyville, CT
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Hawleyville, Connecticut, with an average temperature varying between 73°F (22.8°C) and 57°F (13.9°C).Temperature
A subtle shift in Hawleyville's weather is observed as August turns into September, with the average high temperature reducing from a warm 80.2°F (26.8°C) to an agreeable 73°F (22.8°C). Hawleyville experiences a steady low-temperature of 57°F (13.9°C) throughout September.Humidity
In September, the average relative humidity is 77%.Rainfall
January and September are months with the least rain in Hawleyville when the rain falls for 13.4 days and typically aggregates up to 2.4" (61mm) of rain.Snowfall
In Hawleyville, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:36 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hawleyville, CT
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in September
Hawleyville, 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
Hawleyville, CT
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Hawleyville, 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 (72%).
Average rainfall in September
Hawleyville, CT
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is December (4.02").
The driest months (with the least rainfall) are January and September (2.4").
Average rainfall days in September
Hawleyville, CT
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in September
Hawleyville, CT
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hawleyville, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hawleyville, CT
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Hawleyville, CT
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in September
Hawleyville, CT
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Hawleyville, CT
- Average cloud cover in September: 36
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Hawleyville, CT
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).
