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
The transition from August to September sees an average high-temperature of a still moderately hot 74.8°F (23.8°C), indicating a minor variance from the prior month. During September, Collegeville experiences an average low-temperature of 56.8°F (13.8°C) at night.Humidity
In Collegeville, the average relative humidity in September is 78%.Rainfall
In Collegeville, during September, the rain falls for 11.6 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 151.2 rainfall days, and 22.64" (575mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 6:16 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:44 am and sunset at 6:31 pm CDT.
Sunshine
In September, the average sunshine in Collegeville is 8.3h.UV index
In Collegeville, Indiana, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Collegeville in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Collegeville have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Collegeville have in September?
What is the UV index reading in September?
Average temperature in September
Collegeville, IN
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°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 (18.9°F).
Average pressure in September
Collegeville, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Collegeville, IN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Collegeville, IN
- Average humidity in September: 78%
The months with the highest relative humidity are July and August (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Collegeville, IN
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Collegeville, IN
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Collegeville, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.23").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Collegeville, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Collegeville, IN
- Average daylight in September: 12h and 3min
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 2min
The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Collegeville, IN
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in September
Collegeville, IN
- Average UV index in September: 5
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
Collegeville, IN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 35).
Average visibility in September
Collegeville, 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).
Collegeville, Indiana, USA
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