September weather forecastDeer Park, IN
September
Weather in September
September, the first month of the autumn in Deer Park, is still a warm month, with an average temperature ranging between min 56.8°F (13.8°C) and max 74.7°F (23.7°C).Temperature
The onset of September brings with it an average high-temperature of a still moderately hot 74.7°F (23.7°C), showing a negligible variation from the month before. Deer Park reports an average low-temperature of 56.8°F (13.8°C) during the nights of September.Humidity
In Deer Park, the average relative humidity in September is 78%.Rainfall
In Deer Park, during September, the rain falls for 12.4 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Deer Park, during the entire year, the rain falls for 153.9 days and collects up to 23.46" (596mm) of precipitation.Snowfall
In Deer Park, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:16 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:31 pm CDT.
Sunshine
In Deer Park, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Deer Park, Indiana, is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Deer Park, IN
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in September
Deer Park, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Deer Park, IN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Deer Park, IN
- Average humidity in September: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Deer Park, IN
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in September
Deer Park, IN
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in September
Deer Park, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Deer Park, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.2 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
Deer Park, IN
- 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 18min).
- Average sunshine in September: 8h and 30min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Deer Park, IN
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (17.5 days).
The months with the least sunshine days are June and July (10.3 days).
Average UV index in September
Deer Park, IN
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Deer Park, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Deer Park, IN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
