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Johnson City city, TN

ZIP 37686 — Climate & Environment

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Climate, disaster risk, air quality, and environmental safety

Environment & Risk in ZIP Code 37686

Disaster Risk (FEMA NRI)

County-linked natural hazard risk from FEMA National Risk Index — useful for comparing insurance and disaster exposure.

FEMA’s National Risk Index rates natural-hazard risk for Johnson City city, TN as Relatively Low (composite score 71.5), which is elevated versus much of the country. The strongest component scores on US5 are flood (81.6) and hurricane (54.7). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Overall rating
Relatively Low
Risk index
71.5
Flood risk
81.6
Wildfire risk
36.5
Hurricane risk
54.7
Earthquake risk
87.3
Tornado risk
47.2
Winter weather risk
57.6
Hail risk
36.0
Air Quality (EPA AQI)

County-level annual air quality from EPA. Good days = healthy to breathe; unhealthy = sensitive groups or worse.

42
Median AQI
79.0%
Good Days

Air quality healthy to breathe

0.0%
Unhealthy / Hazardous

Sensitive groups or worse

Climate & Weather in ZIP Code 37686

Climate normals for Johnson City city, TN show little to no average snow and around 44.0 inches of annual precipitation. Pair that with FEMA NRI hazard context (overall rating Relatively Low) when evaluating long-term housing and insurance exposure.

7-day weather forecast

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Sunrise, sunset & moon

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Monthly Temperature

30-year climate normals (avg. monthly temperature)

Climate Data
Hardiness Zone
7b
Annual Snow Days
0
Annual Precipitation
43.97 in
FEMA NRI rating
Relatively Low

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone7b
Annual precip (in)43.97
Snow days0
Broadband access91.5%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Low
NRI risk index71.5
Flood risk (NRI)81.6
Wildfire risk (NRI)36.5
Hurricane risk (NRI)54.7
IRS net migration324
Median AQI42
Good AQI days79.0%