September weather forecastCelestine, IN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Celestine, Indiana, with an average temperature fluctuating between 79.3°F (26.3°C) and 60.1°F (15.6°C).Temperature
The average high-temperature shows a slight dip in September, from August's warm 84.7°F (29.3°C) to a still moderately hot 79.3°F (26.3°C). September sees the temperature falling to a mean low of 60.1°F (15.6°C).Humidity
In September, the average relative humidity is 74%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 1.89" (48mm) of precipitation.Snowfall
Months with snowfall are January through April, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Celestine, during the entire year, snow falls for 25.4 days and aggregates up to 7.8" (198mm) of snow.Daylight
In Celestine, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 7:17 am and sunset at 8:16 pm. On the last day of September, sunrise is at 7:42 am and sunset at 7:31 pm EDT.
Sunshine
In Celestine, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Celestine, IN
- Average high temperature in September: 79.3°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in September
Celestine, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Celestine, IN
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Celestine, IN
- Average humidity in September: 74%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Celestine, IN
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is April (4.84").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Celestine, IN
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (10.3 days).
Average snowfall in September
Celestine, IN
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in September
Celestine, IN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Celestine, 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 24min
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
Celestine, IN
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in September
Celestine, IN
- Average UV index in September: 5
The months with the highest UV index are 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
Celestine, 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
Celestine, IN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, May, July and August (5mi).
