Galena weather by month
What a typical year looks like in Galena, Missouri: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Galena, 0 km from Galena; records cover 1963–2026.
The year at a glance
- Precipitation a year
- 46.6 in1183 mm
- Snow a year
- 7 in18 cm
- Last spring freeze
- Apr 17
- First fall freeze
- Oct 18
- Heating degree days
- 4,524
- Cooling degree days
- 1,367
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 5°−15° (heating, 99%) and 100°38° (cooling, 1%).
Month by month
Galena in January
Highs average 45°7° and lows 22°−6°, with 2.5 in63 mm of precipitation and 4 in9 cm of snow in a typical January.
- Record high
- 76°24° (1965)
- Record low
- −21°−29° (1984)
- Heating degree days
- 978
- Cooling degree days
- 0
Galena in February
Highs average 50°10° and lows 26°−4°, with 2.7 in68 mm of precipitation and 1.1 in2.8 cm of snow in a typical February.
- Record high
- 84°29° (2024)
- Record low
- −16°−27° (1996)
- Heating degree days
- 767
- Cooling degree days
- 0
Galena in March
Highs average 59°15° and lows 34°1°, with 4.4 in112 mm of precipitation and 1.4 in3.6 cm of snow in a typical March.
- Record high
- 92°33° (2026)
- Record low
- 2°−17° (1996)
- Heating degree days
- 581
- Cooling degree days
- 4
Galena in April
Highs average 69°20° and lows 43°6°, with 5.1 in130 mm of precipitation in a typical April.
- Record high
- 96°36° (2006)
- Record low
- 16°−9° (2007)
- Heating degree days
- 296
- Cooling degree days
- 21
Galena in May
Highs average 77°25° and lows 53°12°, with 5.5 in139 mm of precipitation in a typical May.
- Record high
- 95°35° (2012)
- Record low
- 28°−2° (1992)
- Heating degree days
- 103
- Cooling degree days
- 100
Galena in June
Highs average 85°30° and lows 63°17°, with 4.3 in109 mm of precipitation in a typical June.
- Record high
- 105°41° (2012)
- Record low
- 36°2° (1988)
- Heating degree days
- 8
- Cooling degree days
- 273
Galena in July
Highs average 89°32° and lows 66°19°, with 4.1 in105 mm of precipitation in a typical July.
- Record high
- 107°42° (2012)
- Record low
- 45°7° (1971)
- Heating degree days
- 1
- Cooling degree days
- 394
Galena in August
Highs average 89°32° and lows 65°18°, with 3 in76 mm of precipitation in a typical August.
- Record high
- 110°43° (2011)
- Record low
- 40°4° (1988)
- Heating degree days
- 2
- Cooling degree days
- 380
Galena in September
Highs average 82°28° and lows 56°13°, with 4.3 in109 mm of precipitation in a typical September.
- Record high
- 105°41° (2000)
- Record low
- 28°−2° (1995)
- Heating degree days
- 51
- Cooling degree days
- 165
Galena in OctoberThis month
Highs average 70°21° and lows 44°7°, with 3.7 in94 mm of precipitation in a typical October.
- Record high
- 92°33° (1963)
- Record low
- 17°−8° (1993)
- Heating degree days
- 267
- Cooling degree days
- 28
Galena in November
Highs average 58°15° and lows 33°1°, with 4.3 in110 mm of precipitation in a typical November.
- Record high
- 86°30° (2006)
- Record low
- 1°−17° (1976)
- Heating degree days
- 584
- Cooling degree days
- 2
Galena in December
Highs average 47°8° and lows 26°−4°, with 2.7 in70 mm of precipitation and 0.8 in2 cm of snow in a typical December.
- Record high
- 80°27° (2025)
- Record low
- −18°−28° (1989)
- Heating degree days
- 886
- Cooling degree days
- 0