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 arrival aligns with a minor decrease in average high-temperatures, from August's warm 78.1°F (25.6°C) to a pleasant 72.5°F (22.5°C). Corunna experiences a mean temperature of 54.5°F (12.5°C) during September nights.Humidity
In Corunna, the average relative humidity in September is 80%.Rainfall
In Corunna, in September, it is raining for 13.5 days, with typically 1.85" (47mm) of accumulated precipitation. In Corunna, during the entire year, the rain falls for 158 days and collects up to 28.62" (727mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 7:07 am and sunset at 8:13 pm. On the last day of September, sunrise is at 7:37 am and sunset at 7:23 pm EDT.
Sunshine
The average sunshine in September is 7.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Be vigilant - Preventing sunburn is recommended. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What is the temperature in September in Corunna?
What is the average humidity in September in Corunna?
How many days does it rain in September in Corunna?
When it does not snow in Corunna?
Does it snow in Corunna in September?
How many hours of daylight does Corunna have in September?
When are sunrise and sunset in September in Corunna?
How long on average sun shines in September in Corunna?
How high is the UV index in September in Corunna?
Average temperature in September
Corunna, IN
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Corunna, IN
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Corunna, IN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Corunna, IN
- Average humidity in September: 80%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Corunna, IN
- Average rainfall in September: 1.85"
The wettest months (with the highest rainfall) are April and May (3.66").
The driest month (with the least rainfall) is December (1.57").
Average rainfall days in September
Corunna, IN
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in September
Corunna, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Corunna, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Corunna, 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 12min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Corunna, IN
- Average sunshine days in September: 14.7 days
The months with the most sunshine days are September, October and November (14.7 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in September
Corunna, IN
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Corunna, IN
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Corunna, IN
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Corunna, Indiana, USA
Weather forecast for your location
2. Allow the app to use your location
