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
September's beginning signals an average high-temperature of a still moderately hot 75.9°F (24.4°C), barely different from August's 81.1°F (27.3°C). Valley Mills, during the nights of September, experiences an average temperature drop to a refreshing 58.3°F (14.6°C).Humidity
In September, the average relative humidity in Valley Mills is 76%.Rainfall
In Valley Mills, in September, during 12.2 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. Throughout the year, there are 146.4 rainfall days, and 21.14" (537mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 7:13 am and sunset at 8:15 pm. On the last day of September, in Valley Mills, sunrise is at 7:41 am and sunset at 7:28 pm EDT.
Sunshine
The average sunshine in September in Valley Mills, Indiana, is 8.4h.UV index
The average daily maximum UV index in September in Valley Mills is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What are September temperatures in Valley Mills?
What is the average humidity in September in Valley Mills?
How many days does it rain in September in Valley Mills?
When it does not snow in Valley Mills?
How many hours of daylight does Valley Mills have in September?
What time are sunrise and sunset in September in Valley Mills?
How long on average sun shines in September in Valley Mills?
How high is the UV index in September in Valley Mills?
Average temperature in September
Valley Mills, IN
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in September
Valley Mills, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Valley Mills, IN
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Valley Mills, IN
- Average humidity in September: 76%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Valley Mills, IN
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in September
Valley Mills, IN
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Valley Mills, IN
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Valley Mills, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Valley Mills, IN
- Average daylight in September: 12h and 2min
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 24min).
- Average sunshine in September: 8h and 2min
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 6min).
Average sunshine days in September
Valley Mills, IN
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in September
Valley Mills, IN
- Average UV index in September: 4
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
Valley Mills, IN
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Valley Mills, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Valley Mills, Indiana, USA
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