September weather forecastNorthfield, KY
September
Weather in September
September, the first month of the autumn in Northfield, is also a moderately hot month, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 79.5°F (26.4°C).Temperature
The arrival of September signals a subtle shift in temperature, down from 85.8°F (29.9°C) in August to a still moderately hot 79.5°F (26.4°C). Northfield's average low-temperature in the month of September is recorded at a moderate 60.1°F (15.6°C).Humidity
The average relative humidity in September in Northfield is 74%.Rainfall
September is the month with the least rainfall. Rain falls for 15.1 days and accumulates 2.17" (55mm) of precipitation.Snowfall
In Northfield, snow does not fall in May through October.Daylight
In Northfield, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 7:12 am and sunset at 8:11 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 Northfield is 8.5h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Northfield, KY
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 60.1°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 (25.9°F).
Average pressure in September
Northfield, KY
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Northfield, KY
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Northfield, KY
- Average humidity in September: 74%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are August and October (73%).
Average rainfall in September
Northfield, KY
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in September
Northfield, KY
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (11.9 days).
Average snowfall in September
Northfield, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Northfield, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 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
Northfield, KY
- 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: 8h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).
Average sunshine days in September
Northfield, KY
- Average sunshine days in September: 13 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in September
Northfield, KY
- Average UV index in September: 5
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, November and December (UV index 2).
Average cloud cover in September
Northfield, KY
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Northfield, KY
- Average visibility in September: 6mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
