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Weather & Climate in Ambrose, ND
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ambrose has a cool climate with an average annual temperature of 40°F (5°C). Winters average 10°F in January while summers reach 68°F in July. 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 16.1 inches (drier than the 38-inch national average). The area receives 40.7 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 2,063 feet.
Temperature
10°F Jan (-12°C)
68°F Jul (20°C)
| Annual Average | 40.2°F |
| 26% below US avg | |
| January Average | 10°F (-12°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 2,063 ft (629 m) |
| Area | 1.0 sq mi (2.6 km²) |
| Population Density | 26/sq mi |
| Coordinates | 48.9559°N, 103.4813°W |
| Timezone | America/Chicago |
| County | Divide County County |
| Nearest Airport | Williston Basin International (XWA) 50 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 5.8 / 100 |
| Social Vulnerability | 63.7 / 100 |
| Community Resilience | 17.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Feb 25, 2014 | 23 km N of Brockton, Montana | M3.8 | 122 km | 5 km |
| Jul 29, 1998 | 16 km WNW of Froid, Montana | M3.8 | 111 km | 5 km |
| Nov 11, 1998 | 10 km SW of Grenora, North Dakota | M3.5 | 61 km | 5 km |
| Sep 28, 2012 | 22 km ESE of Williston, North Dakota | M3.3 | 101 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
78 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 1 fatality, 1 injury.
| Date | Rating | Distance | Path | Fatalities |
| Aug 12, 2010 | EF3 | 96 km | 5.0 mi | 1 |
| Jul 11, 1974 | EF3 | 84 km | 0.1 mi | 0 |
| Jun 14, 1950 | EF3 | 22 km | 23.7 mi | 0 |
| Jun 27, 1982 | EF2 | 94 km | 0.4 mi | 0 |
| Jun 5, 1976 | EF2 | 72 km | 2.0 mi | 0 |
| Jul 2, 1971 | EF2 | 91 km | 10.0 mi | 0 |
| Aug 5, 1969 | EF2 | 86 km | 0.5 mi | 0 |
| Jun 13, 1953 | EF2 | 88 km | 0.1 mi | 0 |
| Jul 9, 2018 | EF1 | 80 km | 2.1 mi | 0 |
| Jul 8, 2009 | EF1 | 60 km | 9.7 mi | 0 |
| Jun 11, 2007 | EF1 | 29 km | 3.0 mi | 0 |
| Jul 18, 2003 | EF1 | 14 km | 2.0 mi | 0 |
| Jul 19, 2001 | EF1 | 97 km | 10.0 mi | 0 |
| Jul 2, 1990 | EF1 | 10 km | 0.1 mi | 0 |
| Aug 21, 1985 | EF1 | 99 km | 1.3 mi | 0 |
| Jul 30, 1984 | EF1 | 72 km | 0.1 mi | 0 |
| Jul 5, 1980 | EF1 | 99 km | 0.1 mi | 0 |
| Jun 24, 1979 | EF1 | 94 km | 13.2 mi | 0 |
| May 17, 1977 | EF1 | 93 km | 8.5 mi | 0 |
| Jun 27, 1975 | EF1 | 80 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: WILLIAMS CO WILDLAND FIRE (67,150 acres, 2024).
| Year | Name | Acres Burned | Distance |
| 2024 | WILLIAMS CO WILDLAND FIRE | 67,150 | 64 km |
| 2015 | LOSTWOOD WILDERNESS 2015 | 6,837 | 83 km |
| 1999 | OUTLOOK | 6,292 | 96 km |
| 2005 | H RX 05 WILD | 5,644 | 82 km |
| 1986 | WILDERNESS | 5,615 | 82 km |
| 1997 | WILDERNESS | 5,556 | 82 km |
| 1999 | ANTELOPE | 5,118 | 77 km |
| 2005 | LOSTWOOD NON-NFP | 2,769 | 85 km |
| 2021 | 13 MILE FIRE | 2,585 | 73 km |
| 2007 | W-RX-F SANDHILLS SUB UNIT B | 2,381 | 86 km |
| 2018 | MTMLR-FY18-RX-WUI DEEP LAKE | 2,088 | 84 km |
| 2023 | NDLWR-HFR-FY23-RX-ASPEN | 2,074 | 86 km |
| 2017 | NDLWR FY17 RX CENTRAL CORE | 1,899 | 84 km |
| 2022 | MTMLR-FY22-RX-BRIDGERMAN | 1,852 | 83 km |
| 2016 | LWR WUI RX FESCUE 2016 | 1,802 | 87 km |
| 1993 | KRUSES | 1,802 | 86 km |
| 1990 | KRUSES | 1,619 | 86 km |
| 1986 | KRUSES | 1,615 | 86 km |
| 1996 | KRUSES | 1,516 | 86 km |
| 2003 | KRUSE | 1,507 | 86 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 10°F (-12°C) | 0.5 in | Coldest |
| February | 14°F (-10°C) | 0.4 in | Driest |
| March | 26°F (-3°C) | 0.6 in | |
| April | 41°F (5°C) | 1.1 in | |
| May | 54°F (12°C) | 2.1 in | |
| June | 63°F (17°C) | 2.6 in | Wettest |
| July | 68°F (20°C) | 2.5 in | Warmest |
| August | 67°F (19°C) | 1.7 in | |
| September | 56°F (13°C) | 1.6 in | |
| October | 43°F (6°C) | 0.9 in | |
| November | 25°F (-4°C) | 0.5 in | |
| December | 12°F (-11°C) | 0.5 in |
Ambrose has a seasonal temperature swing of 58°F / from 10°F in January to 68°F in July. Total annual precipitation is 14.9 inches, with June being the wettest month (2.6") and February the driest (0.4").