Elma weather by month
What a typical year looks like in Elma, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at New Hampton, 25 km from Elma; records cover 1897–2026.
The year at a glance
- Precipitation a year
- 40.6 in1030 mm
- Snow a year
- 39 in98 cm
- Last spring freeze
- May 2
- First fall freeze
- Oct 3
- Heating degree days
- 7,872
- Cooling degree days
- 520
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −14°−26° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Elma in January
Highs average 23°−5° and lows 6°−15°, with 1.3 in33 mm of precipitation and 10 in25 cm of snow in a typical January.
- Record high
- 61°16° (2002)
- Record low
- −34°−37° (1912)
- Heating degree days
- 1568
- Cooling degree days
- 0
Elma in February
Highs average 28°−2° and lows 10°−12°, with 1.4 in35 mm of precipitation and 10 in26 cm of snow in a typical February.
- Record high
- 73°23° (2024)
- Record low
- −33°−36° (1899)
- Heating degree days
- 1294
- Cooling degree days
- 0
Elma in March
Highs average 41°5° and lows 22°−5°, with 2.4 in60 mm of precipitation and 6 in16 cm of snow in a typical March.
- Record high
- 84°29° (1986)
- Record low
- −25°−32° (1948)
- Heating degree days
- 1032
- Cooling degree days
- 0
Elma in April
Highs average 56°13° and lows 34°1°, with 4.2 in106 mm of precipitation and 1.4 in3.6 cm of snow in a typical April.
- Record high
- 94°34° (1980)
- Record low
- 5°−15° (1911)
- Heating degree days
- 596
- Cooling degree days
- 2
Elma in May
Highs average 68°20° and lows 47°8°, with 5 in126 mm of precipitation in a typical May.
- Record high
- 105°41° (1934)
- Record low
- 20°−7° (1897)
- Heating degree days
- 268
- Cooling degree days
- 27
Elma in June
Highs average 78°26° and lows 57°14°, with 6.6 in167 mm of precipitation in a typical June.
- Record high
- 105°41° (1934)
- Record low
- 34°1° (1946)
- Heating degree days
- 48
- Cooling degree days
- 121
Elma in July
Highs average 81°27° and lows 60°16°, with 5 in127 mm of precipitation in a typical July.
- Record high
- 110°43° (1936)
- Record low
- 41°5° (1921)
- Heating degree days
- 13
- Cooling degree days
- 184
Elma in August
Highs average 79°26° and lows 58°14°, with 4.6 in117 mm of precipitation in a typical August.
- Record high
- 104°40° (1988)
- Record low
- 35°2° (1915)
- Heating degree days
- 28
- Cooling degree days
- 133
Elma in September
Highs average 73°23° and lows 49°10°, with 3.8 in97 mm of precipitation in a typical September.
- Record high
- 101°38° (1939)
- Record low
- 19°−7° (1949)
- Heating degree days
- 170
- Cooling degree days
- 48
Elma in OctoberThis month
Highs average 59°15° and lows 37°3°, with 2.7 in68 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 95°35° (1997)
- Record low
- 0°−18° (1925)
- Heating degree days
- 532
- Cooling degree days
- 5
Elma in November
Highs average 43°6° and lows 24°−5°, with 2.1 in53 mm of precipitation and 2.9 in7.4 cm of snow in a typical November.
- Record high
- 78°26° (1933)
- Record low
- −14°−26° (1977)
- Heating degree days
- 951
- Cooling degree days
- 0
Elma in December
Highs average 29°−2° and lows 12°−11°, with 1.7 in42 mm of precipitation and 8 in20 cm of snow in a typical December.
- Record high
- 67°19° (2021)
- Record low
- −29°−34° (1933)
- Heating degree days
- 1372
- Cooling degree days
- 0