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Weather & Climate in Alpine, OR

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

Alpine experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 41°F in January while summers reach 66°F in July. The area gets 251 sunny days per year, above the national average. Annual precipitation totals 41.5 inches. Air quality is rated Good with a median AQI of 32. The city sits at an elevation of 322 feet.

Temperature

41°F Jan (5°C) 66°F Jul (19°C)
Annual Average52.2°F
3% below US avg
January Average41°F (5°C)
July Average66°F (19°C)
Sunny Days251 days/yr

Geography

Elevation322 ft (98 m)
Area0.3 sq mi (0.8 km²)
Population Density267/sq mi
Coordinates44.3303°N, 123.3628°W
TimezoneAmerica/Los_Angeles
CountyBenton County County
Nearest AirportMahlon Sweet Field (EUG)
16 miles away

Precipitation & Snow

Annual Rainfall 41.5"
9% above US avg
Wettest Month (Dec) 12.40"
Driest Month (Jul) 0.75"

Air Quality

AQI Median32.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score84.4 / 100
Social Vulnerability18.5 / 100
Community Resilience97.0 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Relatively Moderate
Wildfire Very Low
Flood Relatively Moderate
Hail Very Low
Strong Wind Very Low
Heat Wave Relatively Moderate
Winter Weather Relatively Low
Lightning Relatively Low
Ice Storm Relatively Low
Drought Very Low
Cold Wave Very Low
Landslide Relatively Moderate
Coastal Flood No Rating
Volcano Very Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

107 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.

Mar 25, 1993 4 km E of Scotts Mills, Oregon M5.6 99 km 20 km
Jul 12, 2004 30 km W of Yachats, Oregon M4.9 90 km 29 km
Aug 19, 2004 19 km W of Newport, Oregon M4.7 83 km 27 km
Jul 4, 2015 16 km ENE of Springfield, Oregon M4.1 50 km 8 km
Apr 15, 2017 43 km WNW of Yachats, Oregon M3.9 101 km 38 km
Feb 8, 1995 9 km ESE of Hubbard, Oregon M3.8 104 km 24 km
Mar 20, 2012 29 km WNW of Yachats, Oregon M3.7 87 km 33 km
Jun 8, 1993 5 km ESE of Scotts Mills, Oregon M3.7 99 km 19 km
Jul 3, 1992 57 km W of Waldport, Oregon M3.6 115 km 21 km
Feb 24, 1999 8 km WSW of Molalla, Oregon M3.6 103 km 34 km
May 19, 2019 3 km ESE of Rose Lodge, Oregon M3.6 83 km 44 km
Sep 8, 2012 8 km N of Scotts Mills, Oregon M3.5 103 km 24 km
Aug 2, 1996 4 km S of Scotts Mills, Oregon M3.5 93 km 29 km
Nov 25, 1999 5 km NNE of Mount Angel, Oregon M3.4 99 km 28 km
Apr 7, 2014 6 km NW of Sherwood, Oregon M3.3 124 km 19 km
Mar 4, 2006 16 km ENE of Siletz, Oregon M3.3 55 km 43 km
Jul 13, 2004 32 km W of Yachats, Oregon M3.3 91 km 29 km
Mar 25, 1993 5 km ESE of Scotts Mills, Oregon M3.2 98 km 13 km
Jul 12, 2007 1 km N of Barlow, Oregon M3.2 116 km 23 km
Mar 20, 2012 27 km WNW of Yachats, Oregon M3.2 86 km 29 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

34 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 3 injuries.

Date Rating Distance Path Fatalities
Dec 14, 2010 EF2 68 km 5.0 mi 0
Sep 1, 2017 EF1 60 km 0.7 mi 0
Jun 13, 2013 EF1 100 km 0.3 mi 0
Jun 21, 2003 EF1 60 km 0.3 mi 0
Nov 24, 1989 EF1 43 km 0.3 mi 0
Mar 8, 1960 EF1 62 km 1.0 mi 0
Dec 6, 1951 EF1 20 km 0.3 mi 0
Oct 31, 2024 EF0 63 km 0.2 mi 0
Jun 18, 2023 EF0 24 km 0.3 mi 0
Oct 24, 2022 EF0 99 km 0.0 mi 0
Oct 29, 2018 EF0 55 km 0.1 mi 0
Apr 14, 2015 EF0 44 km 0.1 mi 0
Nov 6, 2009 EF0 91 km 0.1 mi 0
Jun 4, 2009 EF0 22 km 1.5 mi 0
Sep 28, 2007 EF0 45 km 1.0 mi 0
Dec 16, 2006 EF0 86 km 1.5 mi 0
Dec 2, 1999 EF0 53 km 2.3 mi 0
Oct 3, 1998 EF0 87 km 0.1 mi 0
Sep 18, 1997 EF0 96 km 0.5 mi 0
Sep 17, 1997 EF0 72 km 0.5 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami recorded within 500 km.

Year Location Cause Max Wave Deaths Distance
1700 CASCADIA SUBDUCTION ZONE Earthquake — 2 149 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

11 volcanoes within 200 km. Closest: Sand Mountain Field (114 km).

Name Type Elevation Last Eruption Distance
Sand Mountain Field Pyroclastic cone(s) 1,664 m (5,459 ft) -950 114 km
Belknap Shield(s) 2,095 m (6,873 ft) 480 121 km
Three Sisters Complex 3,159 m (10,364 ft) 440 129 km
Jefferson Stratovolcano 3,199 m (10,495 ft) 950 130 km
Bachelor Stratovolcano 2,763 m (9,065 ft) -5800 139 km
Davis Lake Volcanic field 2,163 m (7,096 ft) -2790 150 km
Cinnamon Butte Pyroclastic cone(s) 1,956 m (6,417 ft) Unknown 158 km
Hood Stratovolcano 3,426 m (11,240 ft) 1866 175 km
Newberry Shield 2,434 m (7,986 ft) 690 184 km
Crater Lake Caldera 2,487 m (8,159 ft) -2850 185 km
West Crater Volcanic field 1,329 m (4,360 ft) -5750 200 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

14 wildfires (100+ acres) recorded within 100 km. Largest: BEACHIE CREEK (194,619 acres, 2020).

Year Name Acres Burned Distance
2020 BEACHIE CREEK 194,619 98 km
2020 HOLIDAY FARM 174,390 72 km
2023 BEDROCK 31,692 78 km
2021 GALES 31,655 86 km
2023 LOOKOUT 25,103 98 km
2018 TERWILLIGER 11,400 97 km
2017 JONES 10,260 77 km
2014 DECEPTION CREEK 6,021 92 km
1987 ROCKHOUSE 5,011 65 km
2003 CLARK 4,905 75 km
2020 ECHO MTN COMPLEX 2,161 88 km
1999 AUSTA 1,525 43 km
1987 87552212 1,166 52 km
1987 87791147 1,048 64 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 41°F (5°C) 11.1 in
February 42°F (6°C) 8.8 in
March 45°F (7°C) 8.0 in
April 48°F (9°C) 5.0 in
May 53°F (12°C) 3.2 in
June 58°F (15°C) 2.0 in
July 66°F (19°C) 0.8 in Warmest, Driest
August 64°F (18°C) 1.2 in
September 60°F (16°C) 2.3 in
October 53°F (12°C) 4.8 in
November 45°F (7°C) 11.2 in
December 40°F (4°C) 12.4 in Coldest, Wettest

Alpine has a seasonal temperature swing of 27°F / from 40°F in December to 66°F in July. Total annual precipitation is 70.7 inches, with December being the wettest month (12.4") and July the driest (0.8").

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