October weather forecast
Johnson City, TN

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The front entrance to the Public Library in Johnson City, Tennessee
The front entrance to the Public Library in Johnson City, Tennessee

Weather in October

Come October, Johnson City embraces the heart of autumn with a downshift in temperature and a burst of colorful foliage. Temperature changes establish the arrival of brisk weather, suggestive of the impending winter season. The wind gathers momentum, whipping up crisp leaves and heralding the change in season. Subtle changes in daylight, coupled with intermittent showers, craft a unique autumn ambiance. The sporadic sunny days are an invitation to witness the surrounding landscapes cloaked in russet hues.

Temperature

In the transition to October, Johnson City observes a drop in the average high-temperature, moving from a warm 77.5°F (25.3°C) in September to a refreshing 65.8°F (18.8°C). Throughout October, the temperature in Johnson City tends to fall to a consistent average low of 45.3°F (7.4°C).

Humidity

In October, the average relative humidity is 76%.

Rainfall

In Johnson City, in October, it is raining for 12 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 187.8 rainfall days, and 32.76" (832mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.7 snowfall days, it receives 0.51" (13mm) of snow. In Johnson City, during the entire year, snow falls for 32.1 days and aggregates up to 13.31" (338mm) of snow.

Daylight

In Johnson City, the average length of the day in October is 11h and 15min.
On the first day of the month, sunrise is at 7:25 am and sunset at 7:12 pm. On the last day of October, sunrise is at 7:52 am and sunset at 6:33 pm EDT.

Sunshine

The average sunshine in October is 6.8h.

UV index

In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 3 in October transforms into this advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Enhance your sun protection with tightly woven, yet airy clothing. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.

Frequently asked questions

What are the temperatures in October?

During October, Johnson City experiences an average high-temperature of 65.8°F (18.8°C) and a low-temperature of 45.3°F (7.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 89.6°F (32°C).

What is the average humidity in October?

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

How many days does it rain in October?

In Johnson City, during October, the rain falls for 12 days and regularly aggregates up to 2.44" (62mm) of precipitation.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 0.7 snowfall days, it receives 0.51" (13mm) of snow.

How many hours of daylight does Johnson City have in October?

The average day length in October is 11h and 15min.

When are sunrise and sunset in October?

On the first day of October, sunrise is at 7:25 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 6:33 pm EDT.

How many hours of sunshine does Johnson City have in October?

In October, the average sunshine duration is 6.8h.

What is the UV index reading in October?

In Johnson City, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Johnson City, TN

Average temperature in October - Johnson City, TN
  • Average high temperature in October: 65.8°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in October: 45.3°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

Average pressure in October
Johnson City, TN

Average pressure in October - Johnson City, TN
  • Average pressure in October: 30.06"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in October
Johnson City, TN

Average wind speed in October - Johnson City, TN
  • Average wind speed in October: 4.9mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in October
Johnson City, TN

Average humidity in October - Johnson City, TN
  • Average humidity in October: 76%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is November (75%).

Average rainfall in October
Johnson City, TN

Average rainfall in October - Johnson City, TN
  • Average rainfall in October: 2.44"

The wettest month (with the highest rainfall) is February (3.27").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in October
Johnson City, TN

Average rainfall days in October - Johnson City, TN
  • Average rainfall days in October: 12 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (11.2 days).

Average snowfall in October
Johnson City, TN

Average snowfall in October - Johnson City, TN
  • Average snowfall in October: 0.51"

The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Johnson City, TN

Average snowfall days in October - Johnson City, TN
  • Average snowfall days in October: 0.7 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Johnson City, TN

Average daylight in October / Average sunshine in October - Johnson City, 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 42min).

  • Average sunshine in October: 6h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in October
Johnson City, TN

Average sunshine days in October - Johnson City, TN
  • Average sunshine days in October: 16.5 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is July (8.3 days).

Average UV index in October
Johnson City, TN

Average UV index in October - Johnson City, TN
  • Average UV index in October: 3

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 and December (UV index 2).

Average cloud cover in October
Johnson City, TN

Average cloud cover in October - Johnson City, TN
  • Average cloud cover in October: 34

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 31).

Average visibility in October
Johnson City, TN

Average visibility in October - Johnson City, TN
  • Average visibility in October: 6mi

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

Johnson City, Tennessee, USA

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