Weather & Climate in Castleton, VT

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Castleton experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 21°F in January while summers reach 72°F in July. The area gets 246 sunny days per year, above the national average. Annual precipitation totals 42.6 inches. Air quality is rated Good with a median AQI of 31. The city sits at an elevation of 480 feet.

Temperature

21°F Jan (-6°C) 72°F Jul (22°C)

Annual Average	47.9°F
	11% below US avg
January Average	21°F (-6°C)
July Average	72°F (22°C)
Sunny Days	246 days/yr

Geography

Elevation	480 ft (146 m)
Area	1.3 sq mi (3.3 km²)
Population Density	840/sq mi
Coordinates	43.6054°N, 73.1848°W
Timezone	America/New_York
County	Rutland County County
Nearest Airport	Rutland/Southern Vermont Regional (RUT) 13 miles away

Precipitation & Snow

Annual Rainfall 42.6"

12% above US avg

Wettest Month (Aug) 4.06"

Driest Month (Feb) 2.09"

Air Quality

AQI Median	31.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	50.5 / 100
Social Vulnerability	23.6 / 100
Community Resilience	77.8 / 100

Hazard Breakdown

Tornado	Very Low
Hurricane	Relatively Low
Earthquake	Very Low
Wildfire	Very Low
Flood	Relatively Low
Hail	Very Low
Strong Wind	Relatively Moderate
Heat Wave	Relatively Low
Winter Weather	Relatively Moderate
Lightning	Relatively Moderate
Ice Storm	Relatively Moderate
Drought	No Rating
Cold Wave	Relatively Low
Landslide	Relatively Low
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

40 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	109 km	5 km
Apr 20, 2000	7 km WSW of Newcomb, New York	M3.8	94 km	5 km
Jun 16, 1995	8 km N of Lisbon, New Hampshire	M3.8	127 km	5 km
Apr 8, 2003	17 km ESE of Saint Regis Falls, New York	M3.7	145 km	10 km
Apr 20, 2002	5 km NNW of Au Sable Forks, New York	M3.7	106 km	5 km
Oct 6, 1992	1 km SW of Canterbury, New Hampshire	M3.4	133 km	5 km
Jun 9, 1998	3 km N of Dannemora, New York	M3.3	134 km	5 km
Dec 13, 2009	15 km N of Medusa, New York	M3.2	137 km	10 km
Sep 26, 2010	2 km SW of Canterbury, New Hampshire	M3.2	133 km	5 km
May 24, 2002	6 km N of Au Sable Forks, New York	M3.1	107 km	10 km
Mar 11, 2020	0 km SSW of South Glens Falls, New York	M3.1	50 km	13 km
Jul 24, 2007	12 km SSW of Altamont, New York	M3.1	135 km	15 km
May 18, 2009	15 km N of Medusa, New York	M3.1	137 km	9 km
Jun 25, 2002	6 km NNW of Au Sable Forks, New York	M3.0	108 km	9 km
Mar 2, 1995	3 km ENE of Tupper Lake, New York	M3.0	122 km	4 km
Oct 21, 2009	15 km N of Medusa, New York	M2.9	137 km	7 km
Apr 25, 2023	4 km SW of Center Sandwich, New Hampshire	M2.9	138 km	8 km
Mar 9, 1999	7 km NW of Dannemora, New York	M2.9	137 km	10 km
Sep 29, 1994	13 km WNW of North Creek, New York	M2.9	78 km	16 km
May 14, 2007	5 km ESE of Benson, Vermont	M2.8	11 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 2.

Year	Name	Category	Max Wind	Closest
1991	Bob	Category 2	104 mph	245 km
1985	Gloria	Category 1	86 mph	192 km

Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

77 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 78 injuries.

Date	Rating	Distance	Path	Fatalities
May 31, 1998	EF3	90 km	30.5 mi	0
Aug 20, 1968	EF3	64 km	1.0 mi	0
Jun 5, 2002	EF2	60 km	0.1 mi	0
Jun 11, 1976	EF2	54 km	0.1 mi	0
Aug 28, 1973	EF2	99 km	2.3 mi	0
Aug 28, 1973	EF2	84 km	2.3 mi	0
May 11, 1973	EF2	100 km	0.5 mi	0
May 29, 1969	EF2	46 km	0.5 mi	0
Aug 11, 1966	EF2	98 km	9.0 mi	0
Aug 11, 1966	EF2	67 km	1.0 mi	0
Jul 9, 1962	EF2	58 km	7.6 mi	0
Jul 9, 1962	EF2	67 km	7.7 mi	0
Oct 24, 1955	EF2	61 km	1.0 mi	0
Mar 22, 1955	EF2	67 km	0.1 mi	0
Jul 16, 2024	EF1	87 km	1.8 mi	0
Jul 16, 2024	EF1	81 km	8.4 mi	0
Jul 16, 2024	EF1	84 km	4.6 mi	0
Jul 18, 2022	EF1	54 km	0.9 mi	0
Jul 18, 2022	EF1	96 km	0.4 mi	0
May 16, 2022	EF1	72 km	4.8 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

1 wildfire (100+ acres) recorded within 100 km. Largest: EAST MOUNTAIN (964 acres, 2021).

Year	Name	Acres Burned	Distance
2021	EAST MOUNTAIN	964	98 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	21°F (-6°C)	2.4 in	Coldest
February	21°F (-6°C)	2.1 in	Driest
March	32°F (-0°C)	2.5 in
April	44°F (7°C)	2.8 in
May	57°F (14°C)	3.5 in
June	65°F (18°C)	3.2 in
July	72°F (22°C)	3.3 in	Warmest
August	68°F (20°C)	4.1 in	Wettest
September	59°F (15°C)	3.4 in
October	48°F (9°C)	3.0 in
November	38°F (3°C)	3.2 in
December	25°F (-4°C)	2.8 in

Castleton has a seasonal temperature swing of 51°F / from 21°F in January to 72°F in July. Total annual precipitation is 36.1 inches, with August being the wettest month (4.1") and February the driest (2.1").

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