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 brings an average high-temperature of a still moderately hot 76.1°F (24.5°C), barely different from August's 81.3°F (27.4°C). During September, the nighttime temperature averages of 57.7°F (14.3°C).Humidity
The average relative humidity in September is 78%.Rainfall
In September, in Quincy, the rain falls for 11.5 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. In Quincy, during the entire year, the rain falls for 148.1 days and collects up to 25.43" (646mm) of precipitation.Snowfall
In Quincy, snow does not fall in May through October.Daylight
In Quincy, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 7:15 am and sunset at 8:17 pm. On the last day of September, in Quincy, sunrise is at 7:42 am and sunset at 7:30 pm EDT.
Sunshine
In Quincy, the average sunshine in September is 8.4h.UV index
In Quincy, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Quincy?
What is the average humidity in September in Quincy?
How many days does it rain in September in Quincy?
When it does not snow in Quincy?
How many hours of daylight does Quincy have in September?
When are sunrise and sunset in September in Quincy?
How long on average sun shines in September in Quincy?
How high is the UV index in September in Quincy?
Average temperature in September
Quincy, IN
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Quincy, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Quincy, IN
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is February (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Quincy, 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 (74%).
Average rainfall in September
Quincy, IN
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in September
Quincy, IN
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Quincy, IN
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Quincy, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Quincy, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Quincy, IN
- Average sunshine days in September: 16 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in September
Quincy, IN
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Quincy, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Quincy, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Quincy, Indiana, USA
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