September weather forecastUnionville, IN
September
Weather in September
September, the first month of the autumn in Unionville, is also a moderately hot month, with an average temperature fluctuating between 77.4°F (25.2°C) and 58.3°F (14.6°C).Temperature
Unionville, Indiana, observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 83.3°F (28.5°C) to a still moderately hot 77.4°F (25.2°C). During the month of September, the temperature in Unionville, Indiana, falls to an average of 58.3°F (14.6°C).Humidity
In Unionville, the average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall in Unionville. Rain falls for 12.3 days and accumulates 1.57" (40mm) of precipitation.Snowfall
In Unionville, Indiana, snow does not fall in May through September.Daylight
In September, the average length of the day in Unionville is 12h and 26min.On the first day of the month, sunrise is at 7:14 am and sunset at 8:15 pm. On the last day of September, in Unionville, sunrise is at 7:41 am and sunset at 7:29 pm EDT.
Sunshine
In Unionville, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September in Unionville, Indiana, is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Guard yourself - Avoiding sunburn is suggested. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Unionville, IN
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Unionville, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Unionville, IN
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Unionville, IN
- Average humidity in September: 77%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Unionville, IN
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in September
Unionville, IN
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (19.6 days).
The months with the least rainy days are January and February (8 days).
Average snowfall in September
Unionville, IN
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Unionville, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.8 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
Unionville, IN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Unionville, IN
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (8.6 days).
Average UV index in September
Unionville, 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, October, November and December (UV index 2).
Average cloud cover in September
Unionville, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Unionville, IN
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
