Boyden weather by month
What a typical year looks like in Boyden, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Sioux Center 2 SE, 19 km from Boyden; records cover 1899–2026.
The year at a glance
- Precipitation a year
- 29.9 in758 mm
- Snow a year
- 35 in88 cm
- Last spring freeze
- May 1
- First fall freeze
- Sep 29
- Heating degree days
- 6,993
- Cooling degree days
- 824
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −12°−24° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Boyden in January
Highs average 27°−3° and lows 9°−13°, with 0.67 in17 mm of precipitation and 7 in17 cm of snow in a typical January.
- Record high
- 68°20° (2002)
- Record low
- −37°−38° (1912)
- Heating degree days
- 1444
- Cooling degree days
- 0
Boyden in February
Highs average 33°0° and lows 14°−10°, with 0.88 in22 mm of precipitation and 8 in20 cm of snow in a typical February.
- Record high
- 69°21° (2024)
- Record low
- −33°−36° (1917)
- Heating degree days
- 1165
- Cooling degree days
- 0
Boyden in March
Highs average 46°8° and lows 25°−4°, with 1.7 in44 mm of precipitation and 6 in14 cm of snow in a typical March.
- Record high
- 90°32° (2026)
- Record low
- −19°−28° (1960)
- Heating degree days
- 908
- Cooling degree days
- 1
Boyden in April
Highs average 61°16° and lows 36°2°, with 3 in76 mm of precipitation and 3 in8 cm of snow in a typical April.
- Record high
- 95°35° (2007)
- Record low
- −1°−18° (1975)
- Heating degree days
- 497
- Cooling degree days
- 7
Boyden in May
Highs average 73°23° and lows 48°9°, with 4.2 in105 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 105°41° (1934)
- Record low
- 17°−8° (1967)
- Heating degree days
- 192
- Cooling degree days
- 61
Boyden in June
Highs average 82°28° and lows 59°15°, with 4.5 in115 mm of precipitation in a typical June.
- Record high
- 105°41° (1988)
- Record low
- 33°1° (1901)
- Heating degree days
- 25
- Cooling degree days
- 194
Boyden in July
Highs average 85°29° and lows 62°17°, with 3.5 in88 mm of precipitation in a typical July.
- Record high
- 109°43° (1936)
- Record low
- 38°3° (1972)
- Heating degree days
- 6
- Cooling degree days
- 264
Boyden in August
Highs average 82°28° and lows 60°15°, with 3.4 in86 mm of precipitation in a typical August.
- Record high
- 109°43° (1930)
- Record low
- 37°3° (1986)
- Heating degree days
- 16
- Cooling degree days
- 198
Boyden in September
Highs average 77°25° and lows 51°11°, with 3.2 in82 mm of precipitation in a typical September.
- Record high
- 102°39° (1925)
- Record low
- 21°−6° (1984)
- Heating degree days
- 114
- Cooling degree days
- 88
Boyden in OctoberThis month
Highs average 64°18° and lows 39°4°, with 2.5 in62 mm of precipitation and 0.9 in2.3 cm of snow in a typical October.
- Record high
- 92°33° (1928)
- Record low
- −2°−19° (1925)
- Heating degree days
- 442
- Cooling degree days
- 11
Boyden in November
Highs average 46°8° and lows 25°−4°, with 1.4 in36 mm of precipitation and 4 in10 cm of snow in a typical November.
- Record high
- 79°26° (1999)
- Record low
- −20°−29° (1959)
- Heating degree days
- 882
- Cooling degree days
- 0
Boyden in December
Highs average 32°0° and lows 15°−10°, with 0.99 in25 mm of precipitation and 7 in17 cm of snow in a typical December.
- Record high
- 66°19° (1998)
- Record low
- −32°−36° (1917)
- Heating degree days
- 1302
- Cooling degree days
- 0