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Weather & Climate in Melba, ID
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Melba experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 30°F in January while summers reach 70°F in July. The area gets 310 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 9.9 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 33. The city sits at an elevation of 2,656 feet.
Temperature
30°F Jan (-1°C)
70°F Jul (21°C)
| Annual Average | 47.8°F |
| 11% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 310 days/yr |
Geography
| Elevation | 2,656 ft (810 m) |
| Area | 0.4 sq mi (1.0 km²) |
| Population Density | 1,357/sq mi |
| Coordinates | 43.3736°N, 116.5319°W |
| Timezone | America/Boise |
| County | Ada County County |
| Nearest Airport | Boise Air Trml/Gowen Field (BOI) 20 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 33.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 87.8 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 92.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively High |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
296 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 | 118 km | 12 km |
| Jul 10, 2020 | 18 km SW of Stanley, Idaho | M4.1 | 141 km | 10 km |
| May 31, 2020 | 16 km SW of Stanley, Idaho | M3.9 | 143 km | 10 km |
| Jan 1, 2021 | 15 km SSW of Stanley, Idaho | M3.9 | 147 km | 3 km |
| Jul 10, 2020 | 14 km SW of Stanley, Idaho | M3.9 | 145 km | 14 km |
| Oct 4, 2002 | 15 km W of Cascade, Idaho | M3.8 | 128 km | 5 km |
| Jun 27, 2020 | 17 km SW of Stanley, Idaho | M3.8 | 141 km | 10 km |
| Apr 6, 1995 | 11 km N of Smiths Ferry, Idaho | M3.7 | 119 km | 5 km |
| May 8, 2020 | 12 km WSW of Stanley, Idaho | M3.7 | 147 km | 10 km |
| Mar 12, 2023 | 11 km S of Donnelly, Idaho | M3.7 | 144 km | 12 km |
| Sep 14, 2000 | 4 km W of Smiths Ferry, Idaho | M3.7 | 108 km | 7 km |
| Apr 8, 2020 | 15 km SW of Stanley, Idaho | M3.7 | 143 km | 10 km |
| Apr 7, 2020 | southern Idaho | M3.6 | 149 km | 10 km |
| Apr 22, 2020 | 14 km W of Stanley, Idaho | M3.6 | 149 km | 10 km |
| Apr 1, 2020 | 20 km WNW of Stanley, Idaho | M3.6 | 148 km | 10 km |
| Jul 1, 2020 | 15 km SW of Stanley, Idaho | M3.6 | 143 km | 10 km |
| Apr 1, 2020 | 23 km WNW of Stanley, Idaho | M3.6 | 148 km | 10 km |
| Jun 22, 2020 | 11 km SW of Stanley, Idaho | M3.5 | 147 km | 10 km |
| Mar 5, 2024 | 8 km N of Smiths Ferry, Idaho | M3.5 | 117 km | 10 km |
| Nov 4, 2002 | 37 km NE of Mountain Home, Idaho | M3.5 | 89 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
39 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1. Total: 1 injury.
| Date | Rating | Distance | Path | Fatalities |
| Apr 30, 1997 | EF1 | 85 km | 3.0 mi | 0 |
| May 17, 1996 | EF1 | 63 km | 0.3 mi | 0 |
| Jun 19, 1991 | EF1 | 55 km | 0.1 mi | 0 |
| Oct 26, 1984 | EF1 | 25 km | 0.3 mi | 0 |
| Mar 21, 1984 | EF1 | 18 km | 0.1 mi | 0 |
| Jul 1, 1983 | EF1 | 76 km | 2.0 mi | 0 |
| Apr 23, 1974 | EF1 | 64 km | 1.0 mi | 0 |
| Jun 23, 1969 | EF1 | 63 km | 1.0 mi | 0 |
| Aug 25, 1966 | EF1 | 62 km | 19.1 mi | 0 |
| Jun 2, 1961 | EF1 | 100 km | 0.1 mi | 0 |
| Jul 9, 1956 | EF1 | 36 km | 0.1 mi | 0 |
| May 27, 2023 | EF0 | 59 km | 5.0 mi | 0 |
| May 26, 2023 | EF0 | 38 km | 1.0 mi | 0 |
| May 27, 2022 | EF0 | 19 km | 3.8 mi | 0 |
| May 27, 2019 | EF0 | 95 km | 0.5 mi | 0 |
| May 26, 2013 | EF0 | 57 km | 3.9 mi | 0 |
| Aug 25, 2004 | EF0 | 56 km | — | 0 |
| Aug 25, 2004 | EF0 | 41 km | — | 0 |
| Apr 6, 2003 | EF0 | 23 km | 1.0 mi | 0 |
| Sep 29, 2002 | EF0 | 56 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Jordan Craters (79 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Jordan Craters | Volcanic field | 1,473 m (4,833 ft) | -1250 | 79 km |
| Black Butte Crater Lava Field | Shield | 1,478 m (4,849 ft) | -8400 | 178 km |
| Diamond Craters | Volcanic field | 1,435 m (4,708 ft) | -5610 | 182 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: SODA (282,888 acres, 2015).
| Year | Name | Acres Burned | Distance |
| 2015 | SODA | 282,888 | 27 km |
| 1992 | FOOTHILLS | 228,631 | 69 km |
| 2024 | PADDOCK | 186,842 | 85 km |
| 2013 | PONY COMPLEX | 148,188 | 71 km |
| 2012 | TRINITY RIDGE | 141,807 | 99 km |
| 2013 | ELK COMPLEX | 129,565 | 85 km |
| 2024 | HOLE IN THE GROUND | 98,055 | 85 km |
| 1986 | BOGUS CR | 65,309 | 91 km |
| 2006 | CHERRY | 56,773 | 80 km |
| 1996 | BOGUS CREEK | 56,721 | 90 km |
| 2013 | OWYHEE | 48,001 | 60 km |
| 2012 | JACKS | 47,219 | 94 km |
| 1984 | BIG DRAW 2 | 45,805 | 92 km |
| 2002 | TRIMBLY CREEK | 43,085 | 42 km |
| 1986 | BISSELL CK | 40,847 | 70 km |
| 1986 | VAN DUSEN | 39,901 | 74 km |
| 2017 | LOVERIDGE | 39,630 | 93 km |
| 2016 | CHERRY ROAD | 35,219 | 60 km |
| 2002 | MAHOGANY COMPLEX (ATKINS BUTTE) | 33,472 | 57 km |
| 2000 | OREGON TRAIL | 31,575 | 82 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 1.1 in | Coldest |
| February | 36°F (2°C) | 0.8 in | |
| March | 44°F (7°C) | 1.1 in | Wettest |
| April | 50°F (10°C) | 1.1 in | |
| May | 59°F (15°C) | 1.0 in | |
| June | 66°F (19°C) | 0.9 in | |
| July | 70°F (21°C) | 0.3 in | Driest |
| August | 72°F (22°C) | 0.4 in | Warmest |
| September | 62°F (17°C) | 0.6 in | |
| October | 52°F (11°C) | 0.7 in | |
| November | 40°F (4°C) | 1.1 in | |
| December | 31°F (-0°C) | 1.0 in |
Melba has a seasonal temperature swing of 42°F / from 30°F in January to 72°F in August. Total annual precipitation is 10.1 inches, with March being the wettest month (1.1") and July the driest (0.3").