September weather forecastPlainville, IN
September
Weather in September
September, the first month of the autumn in Plainville, is still a warm month, with an average temperature fluctuating between 59.7°F (15.4°C) and 78.3°F (25.7°C).Temperature
Plainville records a mild change in average high-temperature during September, easing from 83.7°F (28.7°C) in August to a still moderately hot 78.3°F (25.7°C). Throughout September, the temperature tends to fall to a consistent average low of 59.7°F (15.4°C).Humidity
In September, the average relative humidity in Plainville is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 10.6 days and accumulates 1.14" (29mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 7:18 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 7:32 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index in Plainville is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Plainville, IN
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in September: 59.7°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
Plainville, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Plainville, IN
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are January, February and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Plainville, IN
- Average humidity in September: 75%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Plainville, IN
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in September
Plainville, IN
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is December (8.5 days).
Average snowfall in September
Plainville, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Plainville, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Plainville, IN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in September
Plainville, IN
- Average sunshine days in September: 17 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Plainville, IN
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Plainville, IN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Plainville, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





