Melba weather by month
What a typical year looks like in Melba, Idaho: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Swan Falls Ph, 19 km from Melba; records cover 1935–2026.
The year at a glance
- Precipitation a year
- 7.9 in201 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 11
- First fall freeze
- Oct 27
- Heating degree days
- 4,826
- Cooling degree days
- 1,283
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 11°−12° (heating, 99%) and 104°40° (cooling, 1%).
Month by month
Melba in January
Highs average 42°5° and lows 26°−4°, with 0.87 in22 mm of precipitation in a typical January.
- Record high
- 67°19° (1953)
- Record low
- −15°−26° (1962)
- Heating degree days
- 972
- Cooling degree days
- 0
Melba in February
Highs average 49°9° and lows 29°−2°, with 0.59 in15 mm of precipitation in a typical February.
- Record high
- 74°23° (1986)
- Record low
- −13°−25° (1989)
- Heating degree days
- 725
- Cooling degree days
- 0
Melba in March
Highs average 59°15° and lows 36°2°, with 0.82 in21 mm of precipitation in a typical March.
- Record high
- 85°29° (1966)
- Record low
- 13°−11° (1976)
- Heating degree days
- 549
- Cooling degree days
- 0
Melba in April
Highs average 66°19° and lows 41°5°, with 0.75 in19 mm of precipitation in a typical April.
- Record high
- 96°36° (1977)
- Record low
- 13°−11° (1936)
- Heating degree days
- 354
- Cooling degree days
- 5
Melba in May
Highs average 75°24° and lows 50°10°, with 1.3 in33 mm of precipitation in a typical May.
- Record high
- 104°40° (2003)
- Record low
- 23°−5° (1992)
- Heating degree days
- 143
- Cooling degree days
- 64
Melba in June
Highs average 84°29° and lows 57°14°, with 0.62 in16 mm of precipitation in a typical June.
- Record high
- 110°43° (1940)
- Record low
- 29°−2° (1995)
- Heating degree days
- 33
- Cooling degree days
- 200
Melba in July
Highs average 95°35° and lows 65°18°, with 0.19 in4.8 mm of precipitation in a typical July.
- Record high
- 113°45° (2002)
- Record low
- 38°3° (1993)
- Heating degree days
- 2
- Cooling degree days
- 460
Melba in August
Highs average 93°34° and lows 63°17°, with 0.19 in4.8 mm of precipitation in a typical August.
- Record high
- 115°46° (1990)
- Record low
- 37°3° (1995)
- Heating degree days
- 3
- Cooling degree days
- 404
Melba in September
Highs average 83°28° and lows 53°12°, with 0.27 in6.9 mm of precipitation in a typical September.
- Record high
- 108°42° (1950)
- Record low
- 28°−2° (1995)
- Heating degree days
- 50
- Cooling degree days
- 138
Melba in OctoberThis month
Highs average 68°20° and lows 42°5°, with 0.58 in15 mm of precipitation in a typical October.
- Record high
- 99°37° (1996)
- Record low
- 13°−11° (2019)
- Heating degree days
- 323
- Cooling degree days
- 12
Melba in November
Highs average 52°11° and lows 31°0°, with 0.8 in20 mm of precipitation in a typical November.
- Record high
- 79°26° (2000)
- Record low
- 3°−16° (1955)
- Heating degree days
- 702
- Cooling degree days
- 0
Melba in December
Highs average 42°5° and lows 26°−4°, with 0.93 in24 mm of precipitation in a typical December.
- Record high
- 69°21° (1939)
- Record low
- −21°−29° (1990)
- Heating degree days
- 970
- Cooling degree days
- 0