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Weather & Climate in Tillson, NY

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

Tillson experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 26°F in January while summers reach 73°F in July. The area gets 271 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 52.6 inches (wetter than the 38-inch national average). The area receives 59.2 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 235 feet.

Temperature

26°F Jan (-3°C) 73°F Jul (23°C)
Annual Average50.4°F
7% below US avg
January Average26°F (-3°C)
July Average73°F (23°C)
Sunny Days271 days/yr

Geography

Elevation235 ft (72 m)
Area2.4 sq mi (6.1 km²)
Population Density766/sq mi
Coordinates41.8308°N, 74.0724°W
TimezoneAmerica/New_York
CountyUlster County County
Nearest AirportHudson Valley Regional (POU)
17 miles away

Precipitation & Snow

Annual Rainfall 52.6"
39% above US avg
Snowfall 59.2"
Wettest Month (May) 4.57"
Driest Month (Feb) 2.72"

Air Quality

AQI Median36.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score87.7 / 100
Social Vulnerability45.2 / 100
Community Resilience80.7 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Relatively Moderate
Earthquake Relatively Low
Wildfire Very Low
Flood Relatively Moderate
Hail Relatively Moderate
Strong Wind Relatively High
Heat Wave Relatively Low
Winter Weather Relatively Moderate
Lightning Relatively High
Ice Storm Relatively Moderate
Drought Relatively Low
Cold Wave Relatively Moderate
Landslide Relatively Moderate
Coastal Flood Relatively Low
Avalanche Relatively Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

31 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.

Apr 5, 2024 2024 Tewksbury, New Jersey Earthquake M4.8 139 km 3 km
Jun 17, 1991 7 km NE of Worcester, New York M4.0 102 km 5 km
Apr 5, 2024 7 km WSW of Gladstone, New Jersey M3.7 139 km 4 km
Jun 16, 2000 5 km NE of Granville, Massachusetts M3.3 108 km 10 km
Dec 13, 2009 15 km N of Medusa, New York M3.2 83 km 10 km
Jul 24, 2007 12 km SSW of Altamont, New York M3.1 86 km 15 km
May 18, 2009 15 km N of Medusa, New York M3.1 82 km 9 km
Oct 28, 1991 3 km WNW of Stamford, Connecticut M3.0 94 km 10 km
Aug 3, 2025 0 km W of Little Ferry, New Jersey M3.0 109 km 10 km
Feb 3, 2009 1 km ESE of Victory Gardens, New Jersey M3.0 113 km 0 km
Apr 27, 2024 7 km WSW of Gladstone, New Jersey M2.9 139 km 5 km
May 24, 2024 6 km E of Califon, New Jersey M2.9 137 km 7 km
Oct 21, 2009 15 km N of Medusa, New York M2.9 82 km 7 km
Aug 5, 2025 1 km N of Hillsdale, New Jersey M2.8 91 km 12 km
Aug 27, 2011 5 km WSW of Altamont, New York M2.8 95 km 22 km
Mar 22, 2009 9 km SW of Altamont, New York M2.8 89 km 16 km
Apr 12, 1991 2 km ENE of North Castle, New York M2.7 83 km 9 km
Aug 25, 2011 5 km WSW of Altamont, New York M2.7 95 km 18 km
Feb 18, 2009 15 km N of Medusa, New York M2.7 82 km 9 km
Aug 14, 2014 6 km SW of Deep River Center, Connecticut M2.7 142 km 4 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 218 km
1985 Gloria Category 1 86 mph 106 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

187 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 19 fatalities, 284 injuries.

Date Rating Distance Path Fatalities
May 29, 1995 EF4 67 km 11.5 mi 3
Aug 28, 1973 EF4 85 km 9.8 mi 4
Jul 14, 1988 EF3 67 km 7.2 mi 0
Jun 16, 1974 EF3 51 km 49.1 mi 0
Jul 29, 1971 EF3 91 km 0.1 mi 0
May 24, 1962 EF3 85 km 11.6 mi 1
Apr 22, 2023 EF2 71 km 10.0 mi 0
May 15, 2018 EF2 49 km 1.2 mi 0
Jul 29, 2009 EF2 82 km 7.4 mi 0
Jul 12, 2006 EF2 86 km 10.1 mi 0
Jul 21, 2003 EF2 70 km 1.3 mi 0
Jul 21, 2003 EF2 42 km 1.5 mi 0
Jun 23, 2001 EF2 79 km 0.5 mi 0
May 18, 2000 EF2 9 km 0.2 mi 0
May 31, 1998 EF2 90 km 8.0 mi 0
Jul 3, 1997 EF2 80 km 4.5 mi 0
Jul 3, 1997 EF2 84 km 3.7 mi 0
Jul 3, 1997 EF2 83 km 1.5 mi 0
May 29, 1995 EF2 48 km 15.0 mi 0
Jul 10, 1989 EF2 83 km 5.0 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

2 tsunamis recorded within 500 km. Highest wave on record: 0.3 m (1 ft).

Year Location Cause Max Wave Deaths Distance
1964 LONG ISLAND, NY Meteorological 0.3 m — 141 km
1895 HIGH BRIDGE, NJ Earthquake — — 146 km
Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

9 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (23,000 acres, 1985).

Year Name Acres Burned Distance
1985 UNNAMED 23,000 71 km
2024 JENNINGS CREEK 5,069 75 km
2015 ROOSA GAP 2,747 36 km
2008 UNNAMED 2,224 21 km
2016 SAMS POINT FIRE-VERKEERDER FIRE 1,929 28 km
2006 CHERRYTOWN FIRE 943 25 km
1988 UNNAMED 833 66 km
2016 SHERWOOD 642 73 km
2024 WHITEHOUSE 607 32 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 26°F (-3°C) 3.2 in Coldest
February 27°F (-3°C) 2.7 in Driest
March 37°F (3°C) 3.6 in
April 48°F (9°C) 3.8 in
May 59°F (15°C) 4.6 in Wettest
June 67°F (20°C) 4.0 in
July 73°F (23°C) 4.3 in Warmest
August 70°F (21°C) 3.8 in
September 62°F (17°C) 4.0 in
October 51°F (11°C) 3.5 in
November 41°F (5°C) 3.8 in
December 30°F (-1°C) 3.5 in

Tillson has a seasonal temperature swing of 47°F / from 26°F in January to 73°F in July. Total annual precipitation is 44.8 inches, with May being the wettest month (4.6") and February the driest (2.7").

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