Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The onset of October results in a decrease in the average high-temperature, receding from a warm 82.9°F (28.3°C) in September to a pleasant 71.1°F (21.7°C). Mercer experiences a mean low-temperature of 51.8°F (11°C) during October.Humidity
The least humid month in Mercer is October, with an average relative humidity of 71%.Rainfall
In Mercer, in October, during 8.8 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Mercer, during the entire year, the rain falls for 125.3 days and collects up to 15.47" (393mm) of precipitation.Snowfall
In Mercer, Tennessee, snow does not fall in April through October.Daylight
The average length of the day in October in Mercer is 11h and 17min.On the first day of October, sunrise is at 6:51 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 6:01 pm CDT.
Sunshine
In October, the average sunshine is 6.8h.UV index
In Mercer, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In October, the maximum UV index of 3 transforms into these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Mercer?
What is the least humid month in Mercer?
What is the average humidity in October in Mercer?
How much does it rain in Mercer in October?
When it does not snow in Mercer?
Does it snow in Mercer in October?
What is the average length of the day in October in Mercer?
What time are sunrise and sunset in October in Mercer?
How many hours of sunshine does Mercer have in October?
How high is the UV index in October in Mercer?
Average temperature in October
Mercer, TN
- Average high temperature in October: 71.1°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 (45.7°F).
- Average low temperature in October: 51.8°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in October
Mercer, TN
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in October
Mercer, TN
- Average wind speed in October: 7.1mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in October
Mercer, TN
- Average humidity in October: 71%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Mercer, TN
- Average rainfall in October: 1.1"
The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in October
Mercer, TN
- Average rainfall days in October: 8.8 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (7.1 days).
Average snowfall in October
Mercer, TN
- Average snowfall in October: 0"
The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Mercer, TN
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Mercer, TN
- Average daylight in October: 11h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in October: 6h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in October
Mercer, TN
- Average sunshine days in October: 20.8 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in October
Mercer, TN
- Average UV index in October: 3
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in October
Mercer, TN
- Average cloud cover in October: 31
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in October
Mercer, TN
- Average visibility in October: 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).
Mercer, Tennessee, USA
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