Lost Nation weather by month
What a typical year looks like in Lost Nation, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Lowden, 15 km from Lost Nation; records cover 2000–2026.
The year at a glance
- Precipitation a year
- 39.6 in1006 mm
- Snow a year
- 40 in101 cm
- Last spring freeze
- May 4
- First fall freeze
- Oct 4
- Heating degree days
- 6,632
- Cooling degree days
- 848
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 94°34° (cooling, 1%).
Month by month
Lost Nation in January
Highs average 29°−2° and lows 12°−11°, with 1.6 in40 mm of precipitation and 11 in28 cm of snow in a typical January.
- Record high
- 63°17° (2002)
- Record low
- −37°−38° (2009)
- Heating degree days
- 1384
- Cooling degree days
- 0
Lost Nation in February
Highs average 34°1° and lows 15°−9°, with 1.8 in46 mm of precipitation and 8 in20 cm of snow in a typical February.
- Record high
- 78°26° (2024)
- Record low
- −23°−31° (2014)
- Heating degree days
- 1128
- Cooling degree days
- 0
Lost Nation in March
Highs average 48°9° and lows 27°−3°, with 2.8 in71 mm of precipitation and 6 in16 cm of snow in a typical March.
- Record high
- 88°31° (2026)
- Record low
- −17°−27° (2014)
- Heating degree days
- 866
- Cooling degree days
- 1
Lost Nation in April
Highs average 62°16° and lows 37°3°, with 4.1 in104 mm of precipitation and 1.7 in4.3 cm of snow in a typical April.
- Record high
- 88°31° (2002)
- Record low
- 13°−11° (2018)
- Heating degree days
- 473
- Cooling degree days
- 5
Lost Nation in May
Highs average 73°23° and lows 50°10°, with 4.5 in114 mm of precipitation in a typical May.
- Record high
- 98°37° (2018)
- Record low
- 19°−7° (2005)
- Heating degree days
- 177
- Cooling degree days
- 65
Lost Nation in June
Highs average 82°28° and lows 60°16°, with 5.1 in129 mm of precipitation in a typical June.
- Record high
- 97°36° (2012)
- Record low
- 40°4° (2001)
- Heating degree days
- 15
- Cooling degree days
- 193
Lost Nation in July
Highs average 85°30° and lows 62°17°, with 4.6 in116 mm of precipitation in a typical July.
- Record high
- 103°39° (2012)
- Record low
- 44°7° (2009)
- Heating degree days
- 5
- Cooling degree days
- 274
Lost Nation in August
Highs average 83°28° and lows 60°15°, with 4.1 in105 mm of precipitation in a typical August.
- Record high
- 102°39° (2023)
- Record low
- 40°4° (2004)
- Heating degree days
- 11
- Cooling degree days
- 212
Lost Nation in September
Highs average 77°25° and lows 51°11°, with 3.6 in90 mm of precipitation in a typical September.
- Record high
- 100°38° (2013)
- Record low
- 26°−3° (2012)
- Heating degree days
- 118
- Cooling degree days
- 86
Lost Nation in OctoberThis month
Highs average 64°18° and lows 39°4°, with 3.2 in80 mm of precipitation and 0.7 in1.8 cm of snow in a typical October.
- Record high
- 92°33° (2006)
- Record low
- 15°−9° (2019)
- Heating degree days
- 432
- Cooling degree days
- 12
Lost Nation in November
Highs average 48°9° and lows 27°−3°, with 2.3 in59 mm of precipitation and 2.9 in7.4 cm of snow in a typical November.
- Record high
- 79°26° (2000)
- Record low
- −5°−21° (2019)
- Heating degree days
- 816
- Cooling degree days
- 0
Lost Nation in December
Highs average 34°1° and lows 18°−8°, with 2 in52 mm of precipitation and 9 in23 cm of snow in a typical December.
- Record high
- 74°23° (2021)
- Record low
- −22°−30° (2000)
- Heating degree days
- 1207
- Cooling degree days
- 0