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Weather & Climate in Johnson City, NY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Johnson City experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 23°F in January while summers reach 69°F in July. The area gets 246 sunny days per year, above the national average. Annual precipitation totals 42.0 inches. The area receives 86.5 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 903 feet.
Temperature
23°F Jan (-5°C)
69°F Jul (21°C)
| Annual Average | 46.3°F |
| 14% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 903 ft (275 m) |
| Area | 4.6 sq mi (12.0 km²) |
| Population Density | 3,325/sq mi |
| Coordinates | 42.1253°N, 75.9634°W |
| Timezone | America/New_York |
| County | Broome County County |
| Nearest Airport | Ithaca Tompkins International (ITH) 36 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 87.5 / 100 |
| Social Vulnerability | 57.4 / 100 |
| Community Resilience | 80.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.
| Jun 17, 1991 | 7 km NE of Worcester, New York | M4.0 | 120 km | 5 km |
| Feb 3, 2001 | 6 km W of Bath, New York | M3.2 | 120 km | 0 km |
| Jun 10, 2025 | 10 km NW of Forksville, Pennsylvania | M2.8 | 86 km | 8 km |
| Feb 27, 2008 | 2 km SW of Central Bridge, New York | M2.7 | 146 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 1985 | Gloria | Category 1 | 86 mph | 263 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
166 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 10 fatalities, 80 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 2, 1998 | EF3 | 57 km | 26.0 mi | 2 |
| May 31, 1998 | EF3 | 17 km | 62.0 mi | 0 |
| May 31, 1998 | EF3 | 84 km | 5.0 mi | 0 |
| May 2, 1983 | EF3 | 60 km | 15.0 mi | 0 |
| May 2, 1983 | EF3 | 49 km | 2.0 mi | 0 |
| Aug 30, 1955 | EF3 | 82 km | 1.0 mi | 0 |
| Apr 22, 2023 | EF2 | 93 km | 10.0 mi | 0 |
| Jun 13, 2018 | EF2 | 99 km | 2.9 mi | 0 |
| Jun 13, 2018 | EF2 | 75 km | 5.2 mi | 0 |
| Feb 25, 2017 | EF2 | 99 km | 12.5 mi | 0 |
| Jul 8, 2014 | EF2 | 77 km | 6.7 mi | 0 |
| Jul 8, 2014 | EF2 | 100 km | 2.5 mi | 4 |
| Apr 28, 2011 | EF2 | 50 km | 7.4 mi | 0 |
| Apr 27, 2011 | EF2 | 61 km | 0.9 mi | 0 |
| Jul 23, 2010 | EF2 | 71 km | 25.7 mi | 0 |
| May 16, 2009 | EF2 | 67 km | 5.7 mi | 0 |
| May 31, 1998 | EF2 | 63 km | 1.0 mi | 0 |
| Sep 18, 1991 | EF2 | 53 km | 4.0 mi | 0 |
| Aug 28, 1990 | EF2 | 85 km | 2.5 mi | 0 |
| Oct 14, 1989 | EF2 | 45 km | 2.0 mi | 2 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 2.6 in | Coldest |
| February | 24°F (-4°C) | 2.5 in | Driest |
| March | 33°F (1°C) | 3.0 in | |
| April | 44°F (7°C) | 3.5 in | |
| May | 56°F (13°C) | 3.7 in | |
| June | 64°F (18°C) | 4.0 in | Wettest |
| July | 69°F (21°C) | 3.7 in | Warmest |
| August | 68°F (20°C) | 3.5 in | |
| September | 60°F (16°C) | 3.7 in | |
| October | 49°F (10°C) | 3.2 in | |
| November | 39°F (4°C) | 3.5 in | |
| December | 28°F (-2°C) | 3.0 in |
Johnson City has a seasonal temperature swing of 46°F / from 23°F in January to 69°F in July. Total annual precipitation is 39.8 inches, with June being the wettest month (4.0") and February the driest (2.5").