September weather forecast
Oak Ridge, TN

• 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

Average temperature in September
Oak Ridge, TN

• Average high temperature in September: 80.8°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.4°F).

• Average low temperature in September: 59.5°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

Average pressure in September
Oak Ridge, TN

• Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in September
Oak Ridge, TN

• Average wind speed in September: 3.9mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in September
Oak Ridge, TN

• Average humidity in September: 74%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is August (73%).

Average rainfall in September
Oak Ridge, TN

• Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is February (3.98").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September
Oak Ridge, TN

• Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (8.6 days).

Average snowfall in September
Oak Ridge, TN

• Average snowfall in September: 0"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Oak Ridge, TN

• Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.8 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
Oak Ridge, TN

• Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

• Average sunshine in September: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in September
Oak Ridge, TN

• Average sunshine days in September: 17.1 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (12.2 days).

Average UV index in September
Oak Ridge, TN

• 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 and December (UV index 2).

Average cloud cover in September
Oak Ridge, TN

• Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 29).

Average visibility in September
Oak Ridge, TN

• Average visibility in September: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).