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Weather & Climate in Ruby, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ruby has a cool climate with an average annual temperature of 26°F (-3°C). Winters average -10°F in January while summers reach 60°F in July / a wide seasonal temperature swing of 70°F. The area gets 274 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 13.9 inches (drier than the 38-inch national average). The area receives 77.2 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 21 / among the cleanest air in the country. The city sits at an elevation of 576 feet.
Temperature
-10°F Jan (-23°C)
60°F Jul (16°C)
| Annual Average | 26.0°F |
| 52% below US avg | |
| January Average | -10°F (-23°C) |
| July Average | 60°F (16°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 576 ft (176 m) |
| Area | 7.0 sq mi (18.2 km²) |
| Population Density | 26/sq mi |
| Coordinates | 64.7233°N, 155.5005°W |
| Timezone | America/Anchorage |
| Nearest Airport | Fairbanks International (FAI) 225 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Earthquake History
171 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.
| Feb 3, 2000 | northern Alaska | M5.6 | 68 km | 10 km |
| Jun 4, 2001 | 54 km SSW of Tanana, Alaska | M5.1 | 147 km | 23 km |
| Jan 6, 2019 | 61 km WNW of Tanana, Alaska | M5.1 | 129 km | 17 km |
| Nov 5, 1997 | 19 km ENE of Ruby, Alaska | M4.9 | 21 km | 10 km |
| Apr 8, 2019 | 64 km WNW of Tanana, Alaska | M4.8 | 125 km | 9 km |
| Mar 2, 2023 | 44 km W of Lake Minchumina, Alaska | M4.7 | 146 km | 10 km |
| Sep 6, 2019 | 65 km SSW of Tanana, Alaska | M4.6 | 150 km | 11 km |
| May 17, 1999 | 15 km ENE of Kaltag, Alaska | M4.5 | 144 km | 10 km |
| Jan 10, 2001 | 54 km SW of Hughes, Alaska | M4.4 | 114 km | 10 km |
| Oct 5, 2002 | 95 km N of McGrath, Alaska | M4.4 | 102 km | 6 km |
| Apr 30, 2021 | 40 km SSW of Tanana, Alaska | M4.3 | 148 km | 19 km |
| Sep 13, 1998 | 26 km S of Nulato, Alaska | M4.2 | 126 km | 10 km |
| Apr 22, 1996 | 54 km SSW of Tanana, Alaska | M4.2 | 149 km | 33 km |
| Nov 30, 2000 | Central Alaska | M4.1 | 143 km | 10 km |
| Sep 3, 1994 | 46 km SW of Hughes, Alaska | M4.1 | 119 km | 19 km |
| Nov 21, 2000 | 26 km ENE of Kaltag, Alaska | M3.9 | 135 km | 10 km |
| Jun 25, 2022 | 70 km N of Lake Minchumina, Alaska | M3.9 | 142 km | 15 km |
| Jan 9, 2024 | 54 km SW of Hughes, Alaska | M3.9 | 108 km | 13 km |
| Aug 16, 2001 | 89 km NW of Lake Minchumina, Alaska | M3.9 | 91 km | 10 km |
| Aug 11, 2014 | 70 km SSW of Tanana, Alaska | M3.9 | 145 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: MIDDLE YUKON FIRES (407,461 acres, 2015).
| Year | Name | Acres Burned | Distance |
| 2015 | MIDDLE YUKON FIRES | 407,461 | 40 km |
| 2004 | BONANZA CREEK | 241,856 | 91 km |
| 2005 | HOLTNATKATNA CREEK | 204,488 | 53 km |
| 1990 | KUK 11 | 201,033 | 99 km |
| 2015 | HOLTNAKATNA | 180,266 | 79 km |
| 2005 | CAMP CREEK | 94,290 | 83 km |
| 2015 | DULBI RIVER | 84,988 | 61 km |
| 2022 | CAMP CREEK | 81,840 | 69 km |
| 2005 | EAST FORK YUKI RIVER | 79,220 | 61 km |
| 2015 | BERING CREEK | 76,296 | 95 km |
| 2002 | LONG CREEK | 73,270 | 61 km |
| 2022 | DONUT | 72,355 | 61 km |
| 2017 | NOWITNA | 53,735 | 84 km |
| 2022 | RADIO CREEK | 46,165 | 67 km |
| 2013 | SULATNA RIVER | 44,423 | 76 km |
| 2009 | BERING CREEK 2 | 43,846 | 84 km |
| 2018 | DULBY HOT SPRINGS | 43,493 | 56 km |
| 2009 | LITTLE MUD | 43,011 | 86 km |
| 2007 | COFFEE CAN LAKE | 41,717 | 93 km |
| 2015 | GLACIER | 37,893 | 60 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | -10°F (-23°C) | 0.7 in | Coldest |
| February | 2°F (-17°C) | 0.8 in | |
| March | 8°F (-13°C) | 0.8 in | |
| April | 27°F (-3°C) | 0.8 in | |
| May | 44°F (6°C) | 0.6 in | Driest |
| June | 57°F (14°C) | 1.3 in | |
| July | 60°F (16°C) | 2.3 in | Warmest |
| August | 55°F (13°C) | 3.0 in | Wettest |
| September | 44°F (7°C) | 1.6 in | |
| October | 26°F (-3°C) | 1.0 in | |
| November | 7°F (-14°C) | 1.0 in | |
| December | -3°F (-19°C) | 0.9 in |
Ruby has a seasonal temperature swing of 70°F / from -10°F in January to 60°F in July. Total annual precipitation is 14.8 inches, with August being the wettest month (3.0") and May the driest (0.6").