Melbourne weather by month
What a typical year looks like in Melbourne, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at MARSHALLTOWN, 20 km from Melbourne; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 37.9 in962 mm
- Snow a year
- 25 in64 cm
- Last spring freeze
- Apr 28
- First fall freeze
- Oct 8
- Heating degree days
- 7,056
- Cooling degree days
- 754
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −13°−25° (heating, 99%) and 93°34° (cooling, 1%).
Month by month
Melbourne in January
Highs average 28°−2° and lows 9°−13°, with 0.97 in25 mm of precipitation and 6 in16 cm of snow in a typical January.
- Record high
- 65°18° (2002)
- Record low
- −34°−37° (2009)
- Heating degree days
- 1449
- Cooling degree days
- 0
Melbourne in February
Highs average 32°0° and lows 13°−11°, with 1.2 in29 mm of precipitation and 5 in13 cm of snow in a typical February.
- Record high
- 76°24° (2024)
- Record low
- −35°−37° (1996)
- Heating degree days
- 1186
- Cooling degree days
- 0
Melbourne in March
Highs average 45°7° and lows 25°−4°, with 2.1 in53 mm of precipitation and 3 in8 cm of snow in a typical March.
- Record high
- 90°32° (1895)
- Record low
- −32°−36° (1962)
- Heating degree days
- 926
- Cooling degree days
- 1
Melbourne in April
Highs average 60°15° and lows 36°2°, with 3.8 in97 mm of precipitation and 0.7 in1.8 cm of snow in a typical April.
- Record high
- 94°34° (1910)
- Record low
- 4°−16° (1982)
- Heating degree days
- 523
- Cooling degree days
- 4
Melbourne in May
Highs average 71°22° and lows 49°9°, with 4.9 in125 mm of precipitation in a typical May.
- Record high
- 104°40° (1934)
- Record low
- 20°−7° (1907)
- Heating degree days
- 213
- Cooling degree days
- 46
Melbourne in June
Highs average 80°27° and lows 59°15°, with 5.9 in151 mm of precipitation in a typical June.
- Record high
- 105°41° (1934)
- Record low
- 35°2° (1945)
- Heating degree days
- 29
- Cooling degree days
- 173
Melbourne in July
Highs average 84°29° and lows 63°17°, with 4.6 in116 mm of precipitation in a typical July.
- Record high
- 112°44° (1936)
- Record low
- 41°5° (2023)
- Heating degree days
- 5
- Cooling degree days
- 256
Melbourne in August
Highs average 82°28° and lows 60°15°, with 4.4 in111 mm of precipitation in a typical August.
- Record high
- 109°43° (1934)
- Record low
- 35°2° (1915)
- Heating degree days
- 16
- Cooling degree days
- 190
Melbourne in September
Highs average 75°24° and lows 51°10°, with 3.9 in98 mm of precipitation in a typical September.
- Record high
- 103°39° (1939)
- Record low
- 20°−7° (1942)
- Heating degree days
- 135
- Cooling degree days
- 75
Melbourne in OctoberThis month
Highs average 62°17° and lows 39°4°, with 2.7 in68 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 94°34° (1953)
- Record low
- −3°−19° (1925)
- Heating degree days
- 462
- Cooling degree days
- 9
Melbourne in November
Highs average 47°8° and lows 26°−3°, with 2.1 in53 mm of precipitation and 1.7 in4.3 cm of snow in a typical November.
- Record high
- 81°27° (1938)
- Record low
- −11°−24° (1977)
- Heating degree days
- 858
- Cooling degree days
- 0
Melbourne in December
Highs average 34°1° and lows 16°−9°, with 1.4 in35 mm of precipitation and 8 in20 cm of snow in a typical December.
- Record high
- 73°23° (2021)
- Record low
- −28°−33° (1985)
- Heating degree days
- 1254
- Cooling degree days
- 0