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 onset of September results in a small decrease in the average high-temperature, moderately receding from a warm 80.8°F (27.1°C) in August to a still moderately hot 73.4°F (23°C). Plainville records a consistent low-temperature of 55.9°F (13.3°C) during September nights.Humidity
The average relative humidity in September in Plainville is 77%.Rainfall
September is the month with the least rainfall in Plainville. Rain falls for 12.5 days and accumulates 1.97" (50mm) of precipitation.Snowfall
In Plainville, Connecticut, snow does not fall in June through October.Daylight
In September, the average length of the day in Plainville is 12h and 28min.On the first day of September, sunrise is at 6:18 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:34 pm EDT.
Sunshine
In September, the average sunshine in Plainville is 8.7h.UV index
In Plainville, Connecticut, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Plainville?
What is the average humidity in September in Plainville?
What is the driest month in Plainville?
How many days does it rain in September in Plainville?
When it does not snow in Plainville?
What is the average length of the day in September in Plainville?
When is the sunrise / sunset in September in Plainville?
How long on average sun shines in September in Plainville?
What is the UV index reading in September in Plainville?
Average temperature in September
Plainville, CT
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Plainville, 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
Plainville, CT
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Plainville, 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 (71%).
Average rainfall in September
Plainville, CT
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Plainville, CT
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in September
Plainville, CT
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Plainville, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Plainville, 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 month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Plainville, CT
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in September
Plainville, CT
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Plainville, CT
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Plainville, 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).
Plainville, Connecticut, USA
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