September weather forecastMackey, IN
September
Weather in September
September, the first month of the autumn in Mackey, is also a moderately hot month, with an average temperature varying between 78.8°F (26°C) and 60.4°F (15.8°C).Temperature
September's arrival shows an average high-temperature of a still warm 78.8°F (26°C), hardly different from the previous month. Mackey reports a consistent average low-temperature of 60.4°F (15.8°C) throughout September nights.Humidity
The average relative humidity in September in Mackey is 74%.Rainfall
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.22" (31mm) of precipitation.Snowfall
In Mackey, Indiana, snow does not fall in May through October.Daylight
In Mackey, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:19 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:33 pm CDT.
Sunshine
In Mackey, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Mackey is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, an average UV index of 5 transforms into the following instructions:
Make use of precautions - It is urged to ward off sun damage. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mackey, IN
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 60.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in September
Mackey, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Mackey, IN
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in September
Mackey, IN
- Average humidity in September: 74%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Mackey, IN
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days in September
Mackey, IN
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in September
Mackey, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Mackey, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mackey, IN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Mackey, IN
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in September
Mackey, IN
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Mackey, IN
- Average cloud cover in September: 30
The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in September
Mackey, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
