Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Halfway experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 25°F in January while summers reach 71°F in July. The area gets 276 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 21.3 inches (drier than the 38-inch national average). The area receives 62.3 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 32. The city sits at an elevation of 2,652 feet.
Temperature
25°F Jan (-4°C)71°F Jul (22°C)
Annual Average
47.9°F
11% below US avg
January Average
25°F (-4°C)
July Average
71°F (22°C)
Sunny Days
276 days/yr
Geography
Elevation
2,652 ft (808 m)
Area
0.4 sq mi (1.0 km²)
Population Density
1,024/sq mi
Coordinates
44.8780°N, 117.1097°W
Timezone
America/Los_Angeles
County
Baker County County
Nearest Airport
Grant County Regional/Ogilvie Field (JDA) 97 miles away
Precipitation & Snow
Annual Rainfall21.3"
44% below US avg
Snowfall62.3"
Wettest Month (Dec)2.68"
Driest Month (Jul)0.59"
Air Quality
AQI Median
32.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Low
Risk Score
48.2 / 100
Social Vulnerability
69.4 / 100
Community Resilience
46.0 / 100
Hazard Breakdown
Tornado
Very Low
Earthquake
Relatively Low
Wildfire
Relatively Moderate
Flood
Relatively Low
Hail
Relatively Low
Strong Wind
Very Low
Heat Wave
Relatively Low
Winter Weather
Relatively Moderate
Lightning
Very Low
Ice Storm
Very Low
Drought
Very Low
Cold Wave
Very Low
Landslide
Relatively Low
Volcano
Very Low
Avalanche
Relatively High
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
176 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M4.9.
Feb 26, 2024
10 km N of Smiths Ferry, Idaho
M4.9
96 km
12 km
Apr 11, 1995
20 km SSE of Yellow Pine, Idaho
M4.2
133 km
5 km
Oct 27, 1994
11 km SE of Halfway, Oregon
M4.0
11 km
10 km
Oct 4, 2002
15 km W of Cascade, Idaho
M3.8
81 km
5 km
Apr 6, 1995
11 km N of Smiths Ferry, Idaho
M3.7
96 km
5 km
Mar 12, 2023
11 km S of Donnelly, Idaho
M3.7
86 km
12 km
Sep 14, 2000
4 km W of Smiths Ferry, Idaho
M3.7
100 km
7 km
Jan 23, 2015
3 km N of Cayuse, Oregon
M3.5
146 km
20 km
Apr 24, 2007
12 km WSW of Cascade, Idaho
M3.5
87 km
5 km
Aug 3, 2002
8 km NNW of Smiths Ferry, Idaho
M3.5
95 km
5 km
Apr 1, 2020
30 km SSE of Yellow Pine, Idaho
M3.5
141 km
10 km
Dec 24, 1999
18 km WNW of New Meadows, Idaho
M3.5
54 km
3 km
Mar 12, 2024
8 km NNW of Smiths Ferry, Idaho
M3.5
96 km
16 km
Mar 1, 2024
8 km N of Smiths Ferry, Idaho
M3.5
97 km
10 km
Apr 6, 2002
9 km NW of Cascade, Idaho
M3.5
84 km
5 km
Mar 5, 2024
8 km N of Smiths Ferry, Idaho
M3.5
99 km
10 km
Mar 17, 1995
5 km S of Cascade, Idaho
M3.5
95 km
5 km
Mar 10, 2001
18 km ESE of Donnelly, Idaho
M3.4
102 km
5 km
Oct 4, 2002
15 km W of Cascade, Idaho
M3.4
82 km
5 km
Oct 4, 2002
20 km WSW of Cascade, Idaho
M3.4
79 km
5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
20 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF2. Total: 1 injury.
Date
Rating
Distance
Path
Fatalities
Jun 4, 2006
EF2
35 km
12.0 mi
0
Apr 30, 1997
EF1
100 km
3.0 mi
0
May 17, 1996
EF1
71 km
5.5 mi
0
Jul 9, 1990
EF1
62 km
0.1 mi
0
Jul 1, 1983
EF1
98 km
2.0 mi
0
Jun 27, 1958
EF1
78 km
5.0 mi
0
Jul 12, 2016
EF0
70 km
1.0 mi
0
May 9, 2013
EF0
74 km
0.1 mi
0
May 6, 2009
EF0
85 km
0.2 mi
0
Aug 21, 2006
EF0
65 km
0.2 mi
0
Jun 23, 2004
EF0
56 km
0.1 mi
0
Sep 13, 2001
EF0
71 km
1.0 mi
0
Jun 17, 1997
EF0
82 km
0.2 mi
0
Apr 30, 1997
EF0
65 km
1.0 mi
0
May 17, 1996
EF0
1 km
0.1 mi
0
May 11, 1995
EF0
57 km
0.1 mi
0
Jul 22, 1992
EF0
34 km
0.5 mi
0
Jul 22, 1992
EF0
50 km
0.5 mi
0
Jun 21, 1983
EF0
92 km
0.1 mi
0
Sep 16, 1975
EF0
57 km
0.1 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
1 volcano within 200 km.
Closest: Jordan Craters (195 km).
Name
Type
Elevation
Last Eruption
Distance
Jordan Craters
Volcanic field
1,473 m (4,833 ft)
-1250
195 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: PADDOCK (186,842 acres, 2024).
Year
Name
Acres Burned
Distance
2024
PADDOCK
186,842
96 km
2022
DOUBLE CREEK
171,012
79 km
1994
CORRAL CREEK-BLACKWELL COMPLEX
140,101
91 km
2024
COW VALLEY
134,642
85 km
2015
CORNET-WINDY RIDGE
102,553
58 km
2020
WOODHEAD
98,995
30 km
2015
TEPEE SPRINGS
94,878
92 km
2000
JACKSON
80,733
81 km
2007
BATTLE CREEK COMPLEX (BATTLE CREEK)
79,114
70 km
2007
POE CABIN
59,704
98 km
2006
FOSTER GULCH
52,496
14 km
1996
SALT COMPLEX (SALT CREEK)
50,250
87 km
2022
WILLOW CREEK
38,585
80 km
2005
GRANITE COMPLEX
37,332
72 km
2014
SOMERS
36,374
90 km
2018
MESA
34,541
65 km
2024
THOMPSON
31,066
36 km
1986
TUB MTN
27,008
88 km
2007
WARM SPRINGS
24,611
59 km
2007
GRAYS CREEK
24,369
69 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
25°F (-4°C)
2.5 in
Coldest
February
30°F (-1°C)
1.8 in
March
38°F (3°C)
1.8 in
April
45°F (7°C)
1.4 in
May
53°F (12°C)
1.6 in
June
60°F (16°C)
1.5 in
July
71°F (22°C)
0.6 in
Warmest, Driest
August
67°F (20°C)
0.8 in
September
58°F (15°C)
1.0 in
October
48°F (9°C)
1.2 in
November
36°F (2°C)
2.4 in
December
26°F (-3°C)
2.7 in
Wettest
Halfway has a seasonal temperature swing of 45°F / from 25°F in January to 71°F in July. Total annual precipitation is 19.2 inches, with December being the wettest month (2.7") and July the driest (0.6").