Johnson City
Tennessee, USA
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Johnson City, TN

The front entrance to the Public Library in Johnson City, Tennessee, with flags flying on either side of the main entrance
The front entrance to the Public Library in Johnson City, Tennessee, with flags flying on either side of the main entrance
October, the same as September, is another enjoyable autumn month in Johnson City, Tennessee, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 65.8°F (18.8°C).

Temperature

In October, the average high-temperature drops, from a warm 77.5°F (25.3°C) in September, to an enjoyable 65.8°F (18.8°C). The average low-temperature, in October, is 45.3°F (7.4°C).

Humidity

In October, the average relative humidity is 76%.

Rainfall

In October, the rain falls for 12 days. Throughout October, 2.44" (62mm) of precipitation is accumulated. In Johnson City, Tennessee, during the entire year, the rain falls for 187.8 days and collects up to 32.76" (832mm) of precipitation.

Snowfall

Months with snowfall in Johnson City are January through April, October through December. October is the first month it typically snows in Johnson City. Throughout October, in the average 0.7 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, there are 32.1 snowfall days, and 13.31" (338mm) of snow is accumulated.

Daylight

The average length of the day in October is 11.2h.

Sunshine

In Johnson City, Tennessee, the average sunshine is 6.8h.

UV index

The average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for the ordinary person.
Note: In October, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in October in Johnson City?

In October, in Johnson City, Tennessee, the average high-temperature is 65.8°F (18.8°C), and the average low-temperature is 45.3°F (7.4°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?

In October, the rain falls for 12 days. Throughout October, 2.44" (62mm) of precipitation is accumulated.

When does it start snowing in Johnson City?

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

What is the average length of the day in October in Johnson City?

The average length of the day in October is 11.2h.

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

The average sunshine in October in Johnson City, Tennessee, is 6.8h.

What is the UV index intensity in October in Johnson City?

The average daily maximum UV index in October in Johnson City is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.
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 humidity in October - Johnson City, TN
  • Average humidity in October: 76%

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: 2.44"

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

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 lowest number of rainy days is November (11.2 days).

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

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

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).
Months with the lowest number of 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: 11.2h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in October: 6.8h

The month with most sunshine is June (Average sunshine: 10.6h).
The month with least sunshine is January (Average sunshine: 5h).

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).