Johnson City, TN Weather - Forecast & Monthly Averages

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TEMPERATURE	70
HUMIDITY	53
PRESSURE	101794.84
WIND COND.	300 5.5

Weather Quick Facts

The highest monthly average temperature in Johnson City for August is 74.6 degrees
The lowest monthly average temperature in Johnson City for January is 36.5 degrees
The most monthly precipitation in Johnson City occurs in July with 5 inches
The air quality index in Johnson City is 7% worse than the national average
The pollution index in Johnson City is 61% better than the national average

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Johnson City Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	27°F	48°F	37°F	4.1"
February	28°F	49°F	37°F	2.4"
March	35°F	60°F	47°F	3.1"
April	43°F	70°F	56°F	4.1"
May	52°F	77°F	64°F	2.9"
June	61°F	85°F	72°F	3.6"
July	64°F	86°F	74°F	5.0"
August	64°F	88°F	75°F	2.9"
September	57°F	81°F	68°F	3.8"
October	45°F	70°F	56°F	2.7"
November	34°F	60°F	46°F	2.7"
December	30°F	50°F	39°F	4.3"

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Johnson City air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	Johnson City	Tennessee	National
Air quality index	45	76	42
Pollution index	1,072,440	2,454,916	2,726,193

Johnson City air quality

Measurement	Total
Days measured	365
Days with good air quality	236
Days with moderate air quality	108
Days w/ poor A.Q. for sensitive groups	21
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.040%
Benzene	0.010%
Carbon Tetrachloride	0.001%
Lead	0.010%
Mercury	0.001%

Average monthly Johnson City temperature with heat index

Johnson City monthly precipitation with daily maximum

Johnson City monthly snow depth with daily maximum

Johnson City monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Central, TN	1,996	45	10.0%
Telford, TN	1,019	45	10.0%
Oak Grove CDP (Sumner County), TN	221	45	10.0%
Erwin, TN	6,103	45	10.0%
Banner Hill, TN	1,450	45	10.0%
Johnson City, TN	69,135	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Mount Vernon, NY	69,130	51	2.0%
Rocklin, CA	69,145	52	4.0%
Muncie, IN	69,215	35	30.0%
Conway, AR	69,234	45	10.0%
Alpharetta, GA	69,031	52	4.0%
Johnson City, TN	69,135	45	10.0%

Source: The Johnson City, TN weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.