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Weather & Climate in St. Johnsbury, VT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
St. Johnsbury experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 19°F in January while summers reach 70°F in July. The area gets 251 sunny days per year, above the national average. Annual precipitation totals 40.3 inches. The area receives 87.2 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 31. The city sits at an elevation of 659 feet.
Temperature
19°F Jan (-7°C)
70°F Jul (21°C)
| Annual Average | 45.5°F |
| 16% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 251 days/yr |
Geography
| Elevation | 659 ft (201 m) |
| Area | 13.1 sq mi (33.9 km²) |
| Population Density | 464/sq mi |
| Coordinates | 44.4304°N, 72.0086°W |
| Timezone | America/New_York |
| County | Caledonia County County |
| Nearest Airport | Mount Washington Regional (HIE) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 31.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 30.2 / 100 |
| Social Vulnerability | 27.8 / 100 |
| Community Resilience | 70.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
49 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.3.
| Apr 20, 2002 | 8 km NNW of Au Sable Forks, New York | M5.3 | 134 km | 5 km |
| Oct 16, 2012 | 5 km W of Hollis Center, Maine | M4.7 | 142 km | 16 km |
| Nov 16, 1993 | 5 km SSE of Saint-Édouard, Canada | M3.8 | 144 km | 17 km |
| Jun 16, 1995 | 8 km N of Lisbon, New Hampshire | M3.8 | 18 km | 5 km |
| Aug 21, 1996 | 12 km N of Livermore, New Hampshire | M3.8 | 59 km | 10 km |
| Apr 20, 2002 | 5 km NNW of Au Sable Forks, New York | M3.7 | 134 km | 5 km |
| Jan 17, 2000 | 4 km NNE of Dixfield, Maine | M3.6 | 125 km | 16 km |
| Jan 3, 2000 | 4 km W of Leeds, Maine | M3.5 | 147 km | 10 km |
| Oct 6, 1992 | 1 km SW of Canterbury, New Hampshire | M3.4 | 128 km | 5 km |
| Aug 20, 1995 | 4 km S of Chambly, Canada | M3.3 | 148 km | 18 km |
| Jun 9, 1998 | 3 km N of Dannemora, New York | M3.3 | 140 km | 5 km |
| Sep 26, 2010 | 2 km SW of Canterbury, New Hampshire | M3.2 | 128 km | 5 km |
| May 24, 2002 | 6 km N of Au Sable Forks, New York | M3.1 | 133 km | 10 km |
| May 6, 2020 | 9 km SE of Bedford, Canada | M3.1 | 99 km | 14 km |
| Apr 15, 2010 | 7 km WNW of Valcourt, Canada | M3.0 | 126 km | 18 km |
| Nov 20, 1994 | 4 km WNW of Norway, Maine | M3.0 | 114 km | 5 km |
| Jun 25, 2002 | 6 km NNW of Au Sable Forks, New York | M3.0 | 135 km | 9 km |
| Feb 4, 2022 | 0 km SSW of Gorham, New Hampshire | M2.9 | 66 km | 8 km |
| Mar 9, 1999 | 7 km NW of Dannemora, New York | M2.9 | 147 km | 10 km |
| Apr 25, 2023 | 4 km SW of Center Sandwich, New Hampshire | M2.9 | 84 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 1991 | Bob | Category 1 | — | 237 km |
| 1985 | Gloria | Category 1 | 86 mph | 289 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
57 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 6 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Aug 25, 1969 | EF3 | 67 km | 5.7 mi | 0 |
| Aug 8, 1983 | EF2 | 91 km | 0.2 mi | 0 |
| May 11, 1973 | EF2 | 96 km | 0.5 mi | 0 |
| Aug 11, 1966 | EF2 | 48 km | 9.0 mi | 0 |
| May 20, 1962 | EF2 | 75 km | 1.8 mi | 0 |
| Jun 24, 1960 | EF2 | 74 km | 2.0 mi | 0 |
| Jun 18, 1957 | EF2 | 93 km | 3.0 mi | 0 |
| Jul 16, 2024 | EF1 | 69 km | 1.8 mi | 0 |
| Aug 21, 2011 | EF1 | 90 km | 2.7 mi | 0 |
| Jun 5, 2010 | EF1 | 39 km | 2.1 mi | 0 |
| May 9, 2009 | EF1 | 49 km | 0.6 mi | 0 |
| Jul 18, 2008 | EF1 | 72 km | 0.3 mi | 0 |
| Jun 17, 2001 | EF1 | 98 km | 0.4 mi | 0 |
| Aug 13, 1999 | EF1 | 98 km | 8.0 mi | 0 |
| Jul 23, 1995 | EF1 | 92 km | 0.5 mi | 0 |
| Sep 3, 1993 | EF1 | 43 km | 4.0 mi | 0 |
| Aug 6, 1989 | EF1 | 34 km | 1.5 mi | 0 |
| May 19, 1982 | EF1 | 23 km | 0.1 mi | 0 |
| Jul 23, 1978 | EF1 | 97 km | 0.2 mi | 0 |
| Aug 15, 1976 | EF1 | 86 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 2.8 in | |
| February | 17°F (-8°C) | 2.2 in | Coldest, Driest |
| March | 28°F (-2°C) | 2.7 in | |
| April | 40°F (5°C) | 2.9 in | |
| May | 53°F (12°C) | 3.5 in | |
| June | 62°F (17°C) | 4.1 in | |
| July | 70°F (21°C) | 4.0 in | Warmest |
| August | 64°F (18°C) | 4.6 in | Wettest |
| September | 56°F (13°C) | 3.6 in | |
| October | 45°F (7°C) | 3.4 in | |
| November | 33°F (1°C) | 3.5 in | |
| December | 21°F (-6°C) | 3.3 in |
St. Johnsbury has a seasonal temperature swing of 53°F / from 17°F in February to 70°F in July. Total annual precipitation is 40.5 inches, with August being the wettest month (4.6") and February the driest (2.2").