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Weather & Climate in Moro, OR
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Moro experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 32°F in January while summers reach 69°F in July. The area gets 311 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 11.0 inches (drier than the 38-inch national average). The area receives 16.6 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 32. The city sits at an elevation of 1,851 feet.
Temperature
32°F Jan (0°C)
69°F Jul (20°C)
| Annual Average | 49.0°F |
| 9% below US avg | |
| January Average | 32°F (0°C) |
| July Average | 69°F (20°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 1,851 ft (564 m) |
| Area | 0.5 sq mi (1.3 km²) |
| Population Density | 844/sq mi |
| Coordinates | 45.4838°N, 120.7333°W |
| Timezone | America/Los_Angeles |
| County | Sherman County County |
| Nearest Airport | Columbia Gorge Regional/The Dalles Municipal (DLS) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 32.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 2.9 / 100 |
| Social Vulnerability | 32.0 / 100 |
| Community Resilience | 42.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
973 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| Jun 29, 2002 | 6 km ENE of Government Camp, Oregon | M4.5 | 76 km | 5 km |
| Feb 14, 2011 | 31 km S of Morton, Washington | M4.3 | 145 km | 4 km |
| Jun 17, 2010 | 30 km S of White Swan, Washington | M4.2 | 70 km | 3 km |
| Jul 14, 2008 | 11 km ESE of Maupin, Oregon | M4.2 | 43 km | 16 km |
| Jan 30, 2000 | 6 km SE of Condon, Oregon | M4.1 | 57 km | -1 km |
| Aug 16, 2004 | 16 km ENE of Packwood, Washington | M4.0 | 144 km | -1 km |
| Oct 9, 1998 | 20 km S of White Swan, Washington | M4.0 | 80 km | 2 km |
| Jun 6, 2021 | 6 km NE of Government Camp, Oregon | M3.9 | 77 km | 4 km |
| Mar 22, 1997 | 10 km ESE of Condon, Oregon | M3.9 | 61 km | 0 km |
| Oct 1, 2004 | 37 km NNE of Amboy, Washington | M3.9 | 138 km | -1 km |
| Aug 7, 1992 | 8 km WSW of Irrigon, Oregon | M3.9 | 98 km | 0 km |
| Nov 18, 1997 | 20 km NW of Bickleton, Washington | M3.9 | 76 km | 15 km |
| Jan 3, 2018 | 37 km SSE of Morton, Washington | M3.9 | 134 km | 10 km |
| Jun 29, 2002 | 7 km NE of Government Camp, Oregon | M3.8 | 76 km | 5 km |
| Aug 3, 2006 | 2 km WNW of Cherry Grove, Washington | M3.8 | 150 km | 14 km |
| Jun 14, 2007 | 12 km ESE of Maupin, Oregon | M3.8 | 43 km | 18 km |
| Jan 1, 1997 | 14 km NNE of Selah, Washington | M3.7 | 145 km | 18 km |
| Oct 1, 2004 | 36 km NNE of Amboy, Washington | M3.7 | 138 km | -2 km |
| May 18, 2008 | 11 km SSW of Benton City, Washington | M3.7 | 119 km | 20 km |
| Jan 31, 2013 | 3 km ENE of Amboy, Washington | M3.7 | 139 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
8 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1.
| Date | Rating | Distance | Path | Fatalities |
| May 19, 2006 | EF1 | 91 km | 0.1 mi | 0 |
| Apr 14, 2011 | EF0 | 80 km | 0.2 mi | 0 |
| Apr 23, 2005 | EF0 | 95 km | 0.1 mi | 0 |
| Jun 7, 2004 | EF0 | 98 km | 0.5 mi | 0 |
| Aug 26, 1997 | EF0 | 100 km | 1.0 mi | 0 |
| Jul 16, 1993 | EF0 | 91 km | 0.5 mi | 0 |
| May 11, 1970 | EF0 | 86 km | 0.1 mi | 0 |
| Apr 12, 1957 | EF0 | 51 km | 16.2 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 250.0 m (820 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1980 | WASHINGTON | Explosion | 250.0 m | 61 | 138 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
12 volcanoes within 200 km. Closest: Hood (76 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hood | Stratovolcano | 3,426 m (11,240 ft) | 1866 | 76 km |
| Indian Heaven | Shield(s) | 1,806 m (5,925 ft) | -6250 | 98 km |
| Adams | Stratovolcano | 3,742 m (12,277 ft) | 950 | 99 km |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 114 km |
| Jefferson | Stratovolcano | 3,199 m (10,495 ft) | 950 | 123 km |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 138 km |
| Sand Mountain Field | Pyroclastic cone(s) | 1,664 m (5,459 ft) | -950 | 155 km |
| Belknap | Shield(s) | 2,095 m (6,873 ft) | 480 | 159 km |
| Three Sisters | Complex | 3,159 m (10,364 ft) | 440 | 171 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 172 km |
| Bachelor | Stratovolcano | 2,763 m (9,065 ft) | -5800 | 184 km |
| Newberry | Shield | 2,434 m (7,986 ft) | 690 | 200 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: SIMNASHO (118,466 acres, 1996).
| Year | Name | Acres Burned | Distance |
| 1996 | SIMNASHO | 118,466 | 82 km |
| 2018 | BOXCAR 0410 RN | 99,874 | 56 km |
| 2000 | MULE DRY | 90,184 | 72 km |
| 2011 | HANCOCK COMPLEX | 71,495 | 60 km |
| 2017 | NENA SPRINGS | 70,074 | 67 km |
| 2018 | SUBSTATION 0730 RN | 69,109 | 16 km |
| 2015 | COUNTY LINE 2 | 68,189 | 90 km |
| 2011 | 0655 RAZOR BACK EAST | 65,350 | 62 km |
| 2023 | NEWELL ROAD | 61,833 | 51 km |
| 2015 | COUGAR CREEK | 51,866 | 92 km |
| 2024 | BIG HORN | 51,023 | 66 km |
| 2013 | SUNNYSIDE TURNOFF | 50,028 | 76 km |
| 2018 | STUBBLEFIELD 1008 RN | 49,160 | 37 km |
| 2017 | EAGLE CREEK | 48,816 | 95 km |
| 2018 | JENNIES PEAK 1039 RN | 47,664 | 81 km |
| 2008 | COAL PLANT | 45,801 | 83 km |
| 2014 | BLACK ROCK | 40,760 | 55 km |
| 2014 | SHANIKO BUTTE | 39,852 | 62 km |
| 2015 | HIGHWAY 8 | 35,296 | 56 km |
| 2018 | LONG HOLLOW 0806 RN | 33,662 | 25 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (0°C) | 1.9 in | Wettest |
| February | 36°F (2°C) | 1.3 in | |
| March | 42°F (5°C) | 1.2 in | |
| April | 47°F (8°C) | 1.0 in | |
| May | 54°F (12°C) | 0.9 in | |
| June | 61°F (16°C) | 0.7 in | |
| July | 69°F (20°C) | 0.3 in | Warmest, Driest |
| August | 67°F (20°C) | 0.4 in | |
| September | 60°F (15°C) | 0.6 in | |
| October | 50°F (10°C) | 0.9 in | |
| November | 39°F (4°C) | 1.9 in | |
| December | 32°F (0°C) | 1.9 in | Coldest |
Moro has a seasonal temperature swing of 36°F / from 32°F in December to 69°F in July. Total annual precipitation is 12.9 inches, with January being the wettest month (1.9") and July the driest (0.3").