Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Alamo has a cool climate with an average annual temperature of 39°F (4°C). Winters average 8°F in January while summers reach 67°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 16.7 inches (drier than the 38-inch national average). The area receives 37.3 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 2,120 feet.
Temperature
8°F Jan (-13°C)67°F Jul (19°C)
Annual Average
38.9°F
28% below US avg
January Average
8°F (-13°C)
July Average
67°F (19°C)
Sunny Days
274 days/yr
Geography
Elevation
2,120 ft (646 m)
Area
0.6 sq mi (1.5 km²)
Population Density
91/sq mi
Coordinates
48.5820°N, 103.4674°W
Timezone
America/Chicago
County
Williams County County
Nearest Airport
Williston Basin International (XWA) 26 miles away
Precipitation & Snow
Annual Rainfall16.7"
56% below US avg
Snowfall37.3"
Wettest Month (Jun)2.40"
Driest Month (Feb)0.35"
Air Quality
AQI Median
38.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Low
Risk Score
53.7 / 100
Social Vulnerability
10.6 / 100
Community Resilience
52.6 / 100
Hazard Breakdown
Tornado
Relatively Low
Earthquake
Very Low
Wildfire
Relatively Low
Flood
Relatively Low
Hail
Relatively Low
Strong Wind
Relatively Low
Heat Wave
Very Low
Winter Weather
Very High
Lightning
Relatively Low
Ice Storm
Relatively High
Drought
Relatively Low
Cold Wave
Relatively High
Landslide
Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
5 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
107 km
5 km
Jul 29, 1998
16 km WNW of Froid, Montana
M3.8
94 km
5 km
Nov 11, 1998
10 km SW of Grenora, North Dakota
M3.5
42 km
5 km
Sep 28, 2012
22 km ESE of Williston, North Dakota
M3.3
60 km
5 km
May 6, 2014
12 km NNW of Knife River, Montana
M2.6
136 km
8 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
107 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF4. Total: 2 fatalities, 39 injuries.
Date
Rating
Distance
Path
Fatalities
Jul 5, 1955
EF4
86 km
28.0 mi
0
Aug 12, 2010
EF3
97 km
5.0 mi
1
Jul 11, 1974
EF3
54 km
0.1 mi
0
Jun 14, 1950
EF3
44 km
23.7 mi
0
Jul 9, 2018
EF2
90 km
0.5 mi
1
May 26, 2014
EF2
98 km
0.5 mi
0
Jun 27, 1982
EF2
56 km
0.4 mi
0
Jun 5, 1976
EF2
42 km
2.0 mi
0
Jun 25, 1975
EF2
88 km
0.1 mi
0
Jul 2, 1971
EF2
75 km
10.0 mi
0
Sep 21, 1969
EF2
89 km
1.0 mi
0
Aug 5, 1969
EF2
97 km
0.5 mi
0
Jun 14, 1962
EF2
78 km
0.1 mi
0
Jun 13, 1953
EF2
46 km
0.1 mi
0
Jul 1, 1952
EF2
85 km
9.7 mi
0
Jul 6, 2024
EF1
89 km
1.2 mi
0
Jul 9, 2018
EF1
81 km
2.1 mi
0
Jul 8, 2009
EF1
75 km
9.7 mi
0
Jun 11, 2007
EF1
18 km
3.0 mi
0
Jul 18, 2003
EF1
41 km
2.0 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
25 km
1988
BAINVILLE
12,790
72 km
2016
FLAGSTAFF HILL
9,129
98 km
2015
LOSTWOOD WILDERNESS 2015
6,837
75 km
2005
H RX 05 WILD
5,644
74 km
1986
WILDERNESS
5,615
74 km
1997
WILDERNESS
5,556
74 km
1999
ANTELOPE
5,118
71 km
2005
CLEAR LAKE
5,040
89 km
2015
RIDGE ROAD
3,390
63 km
2024
CHARLSON
3,055
79 km
2005
LOSTWOOD NON-NFP
2,769
74 km
2021
13 MILE FIRE
2,585
33 km
2007
W-RX-F SANDHILLS SUB UNIT B
2,381
67 km
2018
MTMLR-FY18-RX-WUI DEEP LAKE
2,088
66 km
2023
NDLWR-HFR-FY23-RX-ASPEN
2,074
77 km
2021
HIGHWAY 16 NORTH
2,069
86 km
2017
NDLWR FY17 RX CENTRAL CORE
1,899
75 km
2022
MTMLR-FY22-RX-BRIDGERMAN
1,852
66 km
2016
LWR WUI RX FESCUE 2016
1,802
76 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
8°F (-13°C)
0.4 in
Coldest
February
15°F (-9°C)
0.4 in
Driest
March
27°F (-3°C)
0.6 in
April
42°F (5°C)
1.2 in
May
55°F (13°C)
2.1 in
June
64°F (18°C)
2.4 in
Wettest
July
67°F (19°C)
2.4 in
August
68°F (20°C)
1.7 in
Warmest
September
56°F (13°C)
1.6 in
October
43°F (6°C)
0.8 in
November
25°F (-4°C)
0.4 in
December
12°F (-11°C)
0.5 in
Alamo has a seasonal temperature swing of 59°F / from 8°F in January to 68°F in August. Total annual precipitation is 14.4 inches, with June being the wettest month (2.4") and February the driest (0.4").