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Lake City weather by month

What a typical year looks like in Lake City, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at CARROLL, 25 km from Lake City; records cover 1893–2026.

Today’s Lake City forecast

The year at a glance

January: typical high 27.9°F, low 10.3°F, precipitation 0.9 in. February: typical high 32.8°F, low 14.2°F, precipitation 1.11 in. March: typical high 46.2°F, low 25.3°F, precipitation 1.87 in. April: typical high 59.9°F, low 36.1°F, precipitation 3.35 in. May: typical high 71.1°F, low 49.2°F, precipitation 4.49 in. June: typical high 81.3°F, low 60°F, precipitation 5.12 in. July: typical high 84.3°F, low 63.9°F, precipitation 4.36 in. August: typical high 82.2°F, low 61.2°F, precipitation 4.06 in. September: typical high 76.3°F, low 51.8°F, precipitation 2.95 in. October: typical high 62.9°F, low 39.5°F, precipitation 2.68 in. November: typical high 46.4°F, low 26.7°F, precipitation 1.44 in. December: typical high 33.1°F, low 16.1°F, precipitation 1.38 in.−50°−46°−30°−34°−10°−23°10°−12°30°−1°50°10°70°21°90°32°110°43°28°−2°10°−12°Jan33°0°14°−10°Feb46°8°25°−4°Mar60°16°36°2°Apr71°22°49°10°May81°27°60°16°Jun84°29°64°18°Jul82°28°61°16°Aug76°25°52°11°Sep63°17°40°4°Oct46°8°27°−3°Nov33°1°16°−9°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
33.7 in856 mm
Snow a year
Rare
Last spring freeze
Apr 28
First fall freeze
Oct 4
Heating degree days
6,921
Cooling degree days
864

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −11°−24° (heating, 99%) and 94°34° (cooling, 1%).

Month by month

Lake City in January

Highs average 28°−2° and lows 10°−12°, with 0.9 in23 mm of precipitation in a typical January.

Record high
68°20° (1944)
Record low
−40° (1912)
Heating degree days
1423
Cooling degree days
0

Lake City in February

Highs average 33°0° and lows 14°−10°, with 1.1 in28 mm of precipitation in a typical February.

Record high
76°24° (2024)
Record low
−33°−36° (1905)
Heating degree days
1162
Cooling degree days
0

Lake City in March

Highs average 46°8° and lows 25°−4°, with 1.9 in47 mm of precipitation in a typical March.

Record high
91°33° (2026)
Record low
−28°−33° (1962)
Heating degree days
908
Cooling degree days
1

Lake City in April

Highs average 60°16° and lows 36°2°, with 3.4 in85 mm of precipitation in a typical April.

Record high
94°34° (1910)
Record low
3°−16° (2002)
Heating degree days
515
Cooling degree days
5

Lake City in May

Highs average 71°22° and lows 49°10°, with 4.5 in114 mm of precipitation in a typical May.

Record high
107°42° (1934)
Record low
18°−8° (1907)
Heating degree days
205
Cooling degree days
54

Lake City in June

Highs average 81°27° and lows 60°16°, with 5.1 in130 mm of precipitation in a typical June.

Record high
105°41° (1933)
Record low
33°1° (1969)
Heating degree days
26
Cooling degree days
195

Lake City in July

Highs average 84°29° and lows 64°18°, with 4.4 in111 mm of precipitation in a typical July.

Record high
112°44° (1936)
Record low
39°4° (1972)
Heating degree days
4
Cooling degree days
286

Lake City in August

Highs average 82°28° and lows 61°16°, with 4.1 in103 mm of precipitation in a typical August.

Record high
112°44° (1934)
Record low
34°1° (1935)
Heating degree days
12
Cooling degree days
220

Lake City in September

Highs average 76°25° and lows 52°11°, with 3 in75 mm of precipitation in a typical September.

Record high
103°39° (1939)
Record low
19°−7° (1899)
Heating degree days
120
Cooling degree days
91

Lake City in OctoberThis month

Highs average 63°17° and lows 40°4°, with 2.7 in68 mm of precipitation in a typical October.

Record high
94°34° (2023)
Record low
1°−17° (1925)
Heating degree days
440
Cooling degree days
12

Lake City in November

Highs average 46°8° and lows 27°−3°, with 1.4 in37 mm of precipitation in a typical November.

Record high
79°26° (2005)
Record low
−12°−24° (1898)
Heating degree days
854
Cooling degree days
0

Lake City in December

Highs average 33°1° and lows 16°−9°, with 1.4 in35 mm of precipitation in a typical December.

Record high
71°22° (2021)
Record low
−26°−32° (1917)
Heating degree days
1252
Cooling degree days
0