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
September
Weather in September
Temperature
A modest decline in the average high-temperature is seen during September, decreasing from a warm 80.1°F (26.7°C) in August to a still moderately hot 74.5°F (23.6°C). Anderson's temperature in September lowers to a consistent average of 57.4°F (14.1°C) during the nights.Humidity
The average relative humidity in September in Anderson is 78%.Rainfall
In September, in Anderson, the rain falls for 12.4 days. Throughout September, 1.38" (35mm) of precipitation is accumulated. Throughout the year, in Anderson, there are 142.1 rainfall days, and 20.91" (531mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day in Anderson is 12h and 26min.On the first day of September in Anderson, Indiana, sunrise is at 7:11 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:26 pm EDT.
Sunshine
In September, the average sunshine in Anderson is 8.2h.UV index
In Anderson, Indiana, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Anderson in September?
What is the average humidity in September in Anderson?
How much does it rain in Anderson in September?
When it does not snow in Anderson?
Does it snow in Anderson in September?
What is the average length of the day in September in Anderson?
When is the sunrise / sunset in September in Anderson?
How many hours of sunshine does Anderson have in September?
How high is the UV index in September in Anderson?
Average temperature in September
Anderson, IN
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Anderson, 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
Anderson, IN
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Anderson, IN
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Anderson, IN
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are February and November (1.14").
Average rainfall days in September
Anderson, IN
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in September
Anderson, IN
- Average snowfall in September: 0"
The months with the highest snowfall are February and December (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Anderson, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Anderson, 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 month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Anderson, IN
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Anderson, 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, October, November and December (UV index 2).
Average cloud cover in September
Anderson, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are June, July and August (Cloud cover 32).
Average visibility in September
Anderson, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).