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
A minor adjustment in Cowan's average high-temperature is noted with the start of September, touching a still warm 74.3°F (23.5°C) from August's 79.3°F (26.3°C). Cowan's nights in September experience an average temperature drop to a moderate 56.5°F (13.6°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Cowan, Indiana, in September, during 13.7 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. In Cowan, during the entire year, the rain falls for 162 days and collects up to 28.11" (714mm) of precipitation.Snowfall
In Cowan, snow does not fall in May through September.Daylight
In September, the average length of the day in Cowan is 12h and 26min.On the first day of September in Cowan, sunrise is at 7:09 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:24 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September in Cowan, Indiana, is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Cowan?
What is the average humidity in September in Cowan?
How many days does it rain in September in Cowan?
When it does not snow in Cowan?
Does it snow in Cowan in September?
What is the average length of the day in September in Cowan?
When is the sunrise / sunset in September in Cowan?
How long on average sun shines in September in Cowan?
How high is the UV index in September in Cowan?
Average temperature in September
Cowan, IN
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Cowan, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Cowan, IN
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Cowan, IN
- Average humidity in September: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Cowan, IN
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is February (1.57").
Average rainfall days in September
Cowan, IN
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Cowan, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Cowan, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cowan, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Cowan, IN
- Average sunshine days in September: 13 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (9 days).
Average UV index in September
Cowan, IN
- Average UV index in September: 4
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, March, October, November and December (UV index 2).
Average cloud cover in September
Cowan, IN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are June, July and August (Cloud cover 33).
Average visibility in September
Cowan, IN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Cowan, Indiana, USA
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