Lambs Grove weather by month
What a typical year looks like in Lambs Grove, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Des Moines 17 E, 24 km from Lambs Grove; records cover 2004–2026.
The year at a glance
- Precipitation a year
- 36.6 in929 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 22
- First fall freeze
- Oct 13
- Heating degree days
- 6,420
- Cooling degree days
- 816
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −8°−22° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Lambs Grove in January
Highs average 30°−1° and lows 13°−11°, with 1 in26 mm of precipitation in a typical January.
- Record high
- 64°18° (2012)
- Record low
- −22°−30° (2009)
- Heating degree days
- 1351
- Cooling degree days
- 0
Lambs Grove in February
Highs average 35°2° and lows 17°−8°, with 1.4 in34 mm of precipitation in a typical February.
- Record high
- 77°25° (2024)
- Record low
- −20°−29° (2021)
- Heating degree days
- 1096
- Cooling degree days
- 0
Lambs Grove in March
Highs average 49°9° and lows 28°−2°, with 2.3 in59 mm of precipitation in a typical March.
- Record high
- 92°33° (2026)
- Record low
- −11°−24° (2014)
- Heating degree days
- 824
- Cooling degree days
- 2
Lambs Grove in April
Highs average 62°17° and lows 39°4°, with 3.8 in98 mm of precipitation in a typical April.
- Record high
- 94°34° (2010)
- Record low
- 13°−11° (2018)
- Heating degree days
- 444
- Cooling degree days
- 6
Lambs Grove in May
Highs average 71°22° and lows 51°10°, with 4.8 in121 mm of precipitation in a typical May.
- Record high
- 96°36° (2018)
- Record low
- 27°−3° (2011)
- Heating degree days
- 175
- Cooling degree days
- 48
Lambs Grove in June
Highs average 80°27° and lows 61°16°, with 5.6 in142 mm of precipitation in a typical June.
- Record high
- 99°37° (2021)
- Record low
- 42°6° (2012)
- Heating degree days
- 16
- Cooling degree days
- 172
Lambs Grove in July
Highs average 84°29° and lows 64°18°, with 3.9 in98 mm of precipitation in a typical July.
- Record high
- 103°39° (2012)
- Record low
- 48°9° (2013)
- Heating degree days
- 4
- Cooling degree days
- 272
Lambs Grove in August
Highs average 82°28° and lows 61°16°, with 4.2 in107 mm of precipitation in a typical August.
- Record high
- 100°38° (2013)
- Record low
- 44°7° (2012)
- Heating degree days
- 9
- Cooling degree days
- 216
Lambs Grove in September
Highs average 76°24° and lows 53°12°, with 3.2 in80 mm of precipitation in a typical September.
- Record high
- 100°38° (2013)
- Record low
- 31°−1° (2012)
- Heating degree days
- 108
- Cooling degree days
- 88
Lambs Grove in OctoberThis month
Highs average 63°17° and lows 41°5°, with 2.9 in73 mm of precipitation in a typical October.
- Record high
- 93°34° (2023)
- Record low
- 19°−7° (2022)
- Heating degree days
- 413
- Cooling degree days
- 12
Lambs Grove in November
Highs average 48°9° and lows 29°−2°, with 1.9 in49 mm of precipitation in a typical November.
- Record high
- 79°26° (2006)
- Record low
- 0°−18° (2019)
- Heating degree days
- 802
- Cooling degree days
- 0
Lambs Grove in December
Highs average 35°2° and lows 19°−7°, with 1.6 in41 mm of precipitation in a typical December.
- Record high
- 75°24° (2021)
- Record low
- −17°−27° (2013)
- Heating degree days
- 1178
- Cooling degree days
- 0