October weather forecast
Harriman, TN

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Weather in October

October, like September, is another pleasant autumn month in Harriman, Tennessee, with temperature in the range of an average high of 68.7°F (20.4°C) and an average low of 48.4°F (9.1°C).

Temperature

October's onset corresponds with a shift in the average high-temperature, moving from a warm 80.2°F (26.8°C) in September to a pleasant 68.7°F (20.4°C). Harriman, in the month of October, anticipates a consistent average low-temperature of 48.4°F (9.1°C).

Humidity

The months with the lowest humidity are June, August, October and November, with an average relative humidity of 76%.

Rainfall

In Harriman, Tennessee, during October, the rain falls for 10.5 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Harriman, during the entire year, the rain falls for 169.5 days and collects up to 34.09" (866mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in October is 11h and 16min.
On the first day of October in Harriman, sunrise is at 7:33 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 6:43 pm EDT.

Sunshine

In October, the average sunshine is 6.9h.

UV index

The average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 4 during October, leads to the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.

Frequently asked questions

What are October temperatures?

In October, the average high-temperature and low-temperature are 68.7°F (20.4°C) and 48.4°F (9.1°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 96.8°F (36°C).

What is the least humid month?

The months with the lowest humidity are June, August, October and November, with an average relative humidity of 76%.

What is the average humidity in October?

In Harriman, the average relative humidity in October is 76%.

How much does it rain in October?

In Harriman, in October, it is raining for 10.5 days, with typically 2.32" (59mm) of accumulated precipitation.

When it does not snow in Harriman?

In Harriman, snow does not fall in May through October.

Does it snow in October?

In Harriman, in October, it doesn't snow. In November, it regularly snows.

How many hours of daylight does Harriman have in October?

In October, the average day length is 11h and 16min.

What time are sunrise and sunset in October?

On the first day of October, sunrise is at 7:33 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 6:43 pm EDT.

How many hours of sunshine does Harriman have in October?

In October, the average sunshine duration is 6.9h.

What is the UV index intensity in October in Harriman?

In Harriman, the average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Harriman, TN

Average temperature in October - Harriman, TN
  • Average high temperature in October: 68.7°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (44.1°F).

  • Average low temperature in October: 48.4°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

Average pressure in October
Harriman, TN

Average pressure in October - Harriman, TN
  • Average pressure in October: 30.06"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 October
Harriman, TN

Average wind speed in October - Harriman, TN
  • Average wind speed in October: 4.8mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in October
Harriman, TN

Average humidity in October - Harriman, TN
  • Average humidity in October: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, August, October and November (76%).

Average rainfall in October
Harriman, TN

Average rainfall in October - Harriman, TN
  • Average rainfall in October: 2.32"

The wettest month (with the highest rainfall) is July (4.09").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in October
Harriman, TN

Average rainfall days in October - Harriman, TN
  • Average rainfall days in October: 10.5 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in October
Harriman, TN

Average snowfall in October - Harriman, TN
  • Average snowfall in October: 0"

The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Harriman, TN

Average snowfall days in October - Harriman, TN
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (4.8 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
Harriman, TN

Average daylight in October / Average sunshine in October - Harriman, TN
  • Average daylight in October: 11h 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 October: 6h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).

Average sunshine days in October
Harriman, TN

Average sunshine days in October - Harriman, TN
  • Average sunshine days in October: 17.9 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in October
Harriman, TN

Average UV index in October - Harriman, TN
  • Average UV index in October: 4

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
Harriman, TN

Average cloud cover in October - Harriman, TN
  • Average cloud cover in October: 35

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in October
Harriman, TN

Average visibility in October - Harriman, TN
  • Average visibility in October: 6mi

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

Harriman, Tennessee, USA

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