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South Glastonbury, MT
Full City Profile · Montana · Park County County
2.8
/5.0
C+
Fair
263
Population
15/sq mi density
$58,750
Median Income
$45,340 per capita
$457,900
Home Value
$711,699 Zillow
46°F
Avg Temperature
311 sunny days/yr
56
Violent Crime/100K
865 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$58,750 median income, 0.0% unemployment
C
Affordability
2.3 / 5.0
$457,900 home value, /mo rent
F
Safety
1.0 / 5.0
56 violent crimes/100K
B+
Education
3.9 / 5.0
36.2% bachelor's degree or higher
South Glastonbury experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 28°F in January while summers reach 67°F in July. The area gets 311 sunny days per year. Annual precipitation totals 16.3 inches. The area receives 62.7 inches of snow annually. Air quality is rated Good with a median AQI of 26.
Temperature
28°F Jan (-2°C)
67°F Jul (20°C)
| Annual Average | 45.6°F |
| 16% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 4,915 ft (1,498 m) |
| Area | 17.9 sq mi (46.4 km²) |
| Population Density | 15/sq mi |
| Coordinates | 45.3121°N, 110.8080°W |
| Timezone | America/Denver |
| County | Park County County |
| Nearest Airport | Bozeman Yellowstone International (BZN) 36 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 66.3 / 100 |
| Social Vulnerability | 29.1 / 100 |
| Community Resilience | 82.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
1 volcano within 200 km. Closest: Yellowstone (99 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Yellowstone | Caldera(s) | 2,805 m (9,203 ft) | -1350 | 99 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 1.7 in | |
| February | 23°F (-5°C) | 1.4 in | Driest |
| March | 27°F (-3°C) | 1.7 in | |
| April | 34°F (1°C) | 1.7 in | |
| May | 43°F (6°C) | 2.8 in | Wettest |
| June | 52°F (11°C) | 2.7 in | |
| July | 67°F (20°C) | 1.8 in | Warmest |
| August | 59°F (15°C) | 1.7 in | |
| September | 51°F (10°C) | 1.9 in | |
| October | 41°F (5°C) | 1.5 in | |
| November | 28°F (-2°C) | 1.7 in | |
| December | 20°F (-6°C) | 1.7 in | Coldest |
South Glastonbury has a seasonal temperature swing of 47°F / from 20°F in December to 67°F in July. Total annual precipitation is 22.3 inches, with May being the wettest month (2.8") and February the driest (1.4").