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Sims weather by month

What a typical year looks like in Sims, Indiana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at MARION 2 N, 19 km from Sims; records cover 1893–2026.

Today’s Sims forecast

The year at a glance

January: typical high 33°F, low 17.7°F, precipitation 2.85 in. February: typical high 37°F, low 19.5°F, precipitation 2.15 in. March: typical high 48.1°F, low 28°F, precipitation 2.87 in. April: typical high 61.2°F, low 38°F, precipitation 4.1 in. May: typical high 72°F, low 49.2°F, precipitation 4.76 in. June: typical high 80.8°F, low 59.2°F, precipitation 4.42 in. July: typical high 83.8°F, low 62.5°F, precipitation 4.33 in. August: typical high 82°F, low 60.5°F, precipitation 3.93 in. September: typical high 76.6°F, low 53.3°F, precipitation 3.39 in. October: typical high 64.2°F, low 41.9°F, precipitation 3.12 in. November: typical high 49.7°F, low 31.7°F, precipitation 3.26 in. December: typical high 38°F, low 23°F, precipitation 2.58 in.−30°−34°−10°−23°10°−12°30°−1°50°10°70°21°90°32°110°43°33°1°18°−8°Jan37°3°20°−7°Feb48°9°28°−2°Mar61°16°38°3°Apr72°22°49°10°May81°27°59°15°Jun84°29°63°17°Jul82°28°61°16°Aug77°25°53°12°Sep64°18°42°5°Oct50°10°32°0°Nov38°3°23°−5°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
41.8 in1061 mm
Snow a year
25 in62 cm
Last spring freeze
Apr 23
First fall freeze
Oct 17
Heating degree days
6,078
Cooling degree days
812

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −3°−19° (heating, 99%) and 93°34° (cooling, 1%).

Month by month

Sims in January

Highs average 33°1° and lows 18°−8°, with 2.9 in72 mm of precipitation and 8 in21 cm of snow in a typical January.

Record high
71°22° (1995)
Record low
−23°−31° (1985)
Heating degree days
1229
Cooling degree days
0

Sims in February

Highs average 37°3° and lows 20°−7°, with 2.2 in55 mm of precipitation and 6 in16 cm of snow in a typical February.

Record high
76°24° (1922)
Record low
−20°−29° (1905)
Heating degree days
1029
Cooling degree days
0

Sims in March

Highs average 48°9° and lows 28°−2°, with 2.9 in73 mm of precipitation and 4 in9 cm of snow in a typical March.

Record high
86°30° (1910)
Record low
−11°−24° (1984)
Heating degree days
837
Cooling degree days
1

Sims in April

Highs average 61°16° and lows 38°3°, with 4.1 in104 mm of precipitation and 0.3 in0.8 cm of snow in a typical April.

Record high
95°35° (1899)
Record low
5°−15° (1982)
Heating degree days
468
Cooling degree days
6

Sims in May

Highs average 72°22° and lows 49°10°, with 4.8 in121 mm of precipitation in a typical May.

Record high
100°38° (1911)
Record low
26°−3° (1903)
Heating degree days
193
Cooling degree days
56

Sims in June

Highs average 81°27° and lows 59°15°, with 4.4 in112 mm of precipitation in a typical June.

Record high
103°39° (1934)
Record low
34°1° (1894)
Heating degree days
30
Cooling degree days
180

Sims in July

Highs average 84°29° and lows 63°17°, with 4.3 in110 mm of precipitation in a typical July.

Record high
108°42° (1936)
Record low
43°6° (1904)
Heating degree days
5
Cooling degree days
257

Sims in August

Highs average 82°28° and lows 61°16°, with 3.9 in100 mm of precipitation in a typical August.

Record high
103°39° (1918)
Record low
38°3° (1915)
Heating degree days
10
Cooling degree days
204

Sims in September

Highs average 77°25° and lows 53°12°, with 3.4 in86 mm of precipitation in a typical September.

Record high
102°39° (1951)
Record low
28°−2° (1928)
Heating degree days
95
Cooling degree days
94

Sims in OctoberThis month

Highs average 64°18° and lows 42°5°, with 3.1 in79 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.

Record high
92°33° (1946)
Record low
15°−9° (1895)
Heating degree days
384
Cooling degree days
14

Sims in November

Highs average 50°10° and lows 32°0°, with 3.3 in83 mm of precipitation and 1 in2.5 cm of snow in a typical November.

Record high
84°29° (1950)
Record low
−5°−21° (1950)
Heating degree days
729
Cooling degree days
0

Sims in December

Highs average 38°3° and lows 23°−5°, with 2.6 in66 mm of precipitation and 5 in13 cm of snow in a typical December.

Record high
71°22° (1982)
Record low
−22°−30° (1924)
Heating degree days
1069
Cooling degree days
0