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
Start of October brings a shift in the average high-temperature, falling from September's moderately hot 80.1°F (26.7°C) to an agreeable 68.5°F (20.3°C). Nighttime temperatures in Portland consistently average a frosty 49.6°F (9.8°C) during October.Humidity
October and November, with an average relative humidity of 75%, are the least humid months in Portland, Tennessee.Rainfall
In Portland, in October, it is raining for 12.1 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, there are 177.4 rainfall days, and 44.61" (1133mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In October, the average length of the day in Portland, Tennessee, is 11h and 14min.On the first day of October in Portland, sunrise is at 6:41 am and sunset at 6:29 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:50 pm CDT.
Sunshine
The average sunshine in October in Portland is 6.7h.UV index
The average daily maximum UV index in October in Portland is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In October, the average maximum UV index of 3 translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Portland in October?
What are the least humid months in Portland?
What is the average humidity in October in Portland?
How many days does it rain in October in Portland?
When it does not snow in Portland?
Does it snow in Portland in October?
What is the average length of the day in October in Portland?
When are sunrise and sunset in October in Portland?
How long on average sun shines in October in Portland?
What is the UV index intensity in October in Portland?
Average temperature in October
Portland, TN
- Average high temperature in October: 68.5°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 (42.8°F).
- Average low temperature in October: 49.6°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in October
Portland, TN
- Average pressure in October: 30.06"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in October
Portland, TN
- Average wind speed in October: 6.6mph
The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in October
Portland, TN
- Average humidity in October: 75%
The months with the highest relative humidity are March, May and December (79%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in October
Portland, TN
- Average rainfall in October: 2.99"
The wettest month (with the highest rainfall) is July (5.39").
The driest month (with the least rainfall) is November (2.56").
Average rainfall days in October
Portland, TN
- Average rainfall days in October: 12.1 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in October
Portland, TN
- Average snowfall in October: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Portland, TN
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Portland, TN
- Average daylight in October: 11h and 1min
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 42min).
- Average sunshine in October: 6h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in October
Portland, TN
- Average sunshine days in October: 17.1 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is July (9.7 days).
Average UV index in October
Portland, TN
- Average UV index in October: 3
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 October
Portland, TN
- Average cloud cover in October: 37
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in October
Portland, TN
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, May and July (5mi).
Portland, Tennessee, USA
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