Lantry weather by month
What a typical year looks like in Lantry, South Dakota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Dupree 15 Sse, 17 km from Lantry; records cover 1963–2026.
The year at a glance
- Precipitation a year
- 19.3 in491 mm
- Snow a year
- 47 in120 cm
- Last spring freeze
- May 10
- First fall freeze
- Oct 3
- Heating degree days
- 7,678
- Cooling degree days
- 741
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 100°38° (cooling, 1%).
Month by month
Lantry in January
Highs average 28°−2° and lows 9°−13°, with 0.37 in9.4 mm of precipitation and 7 in17 cm of snow in a typical January.
- Record high
- 70°21° (2015)
- Record low
- −40° (1966)
- Heating degree days
- 1441
- Cooling degree days
- 0
Lantry in February
Highs average 32°0° and lows 12°−11°, with 0.49 in12 mm of precipitation and 7 in18 cm of snow in a typical February.
- Record high
- 73°23° (1982)
- Record low
- −32°−36° (1996)
- Heating degree days
- 1208
- Cooling degree days
- 0
Lantry in March
Highs average 44°6° and lows 22°−6°, with 0.87 in22 mm of precipitation and 7 in18 cm of snow in a typical March.
- Record high
- 85°29° (1967)
- Record low
- −30°−34° (1980)
- Heating degree days
- 1003
- Cooling degree days
- 0
Lantry in April
Highs average 56°14° and lows 32°0°, with 1.8 in46 mm of precipitation and 9 in22 cm of snow in a typical April.
- Record high
- 97°36° (1980)
- Record low
- 1°−17° (1975)
- Heating degree days
- 621
- Cooling degree days
- 1
Lantry in May
Highs average 68°20° and lows 44°7°, with 3.5 in89 mm of precipitation and 0.8 in2 cm of snow in a typical May.
- Record high
- 104°40° (1969)
- Record low
- 18°−8° (1967)
- Heating degree days
- 307
- Cooling degree days
- 22
Lantry in June
Highs average 78°26° and lows 54°12°, with 3.4 in87 mm of precipitation in a typical June.
- Record high
- 111°44° (2002)
- Record low
- 30°−1° (1969)
- Heating degree days
- 71
- Cooling degree days
- 107
Lantry in July
Highs average 86°30° and lows 61°16°, with 2.7 in68 mm of precipitation in a typical July.
- Record high
- 114°46° (2006)
- Record low
- 35°2° (1971)
- Heating degree days
- 11
- Cooling degree days
- 275
Lantry in August
Highs average 86°30° and lows 59°15°, with 2 in50 mm of precipitation in a typical August.
- Record high
- 111°44° (1988)
- Record low
- 35°2° (1977)
- Heating degree days
- 21
- Cooling degree days
- 249
Lantry in September
Highs average 76°24° and lows 49°9°, with 1.4 in35 mm of precipitation in a typical September.
- Record high
- 106°41° (1971)
- Record low
- 13°−11° (1984)
- Heating degree days
- 160
- Cooling degree days
- 81
Lantry in OctoberThis month
Highs average 60°15° and lows 35°2°, with 1.9 in47 mm of precipitation and 3 in8 cm of snow in a typical October.
- Record high
- 97°36° (1963)
- Record low
- −5°−21° (1991)
- Heating degree days
- 556
- Cooling degree days
- 6
Lantry in November
Highs average 44°7° and lows 22°−5°, with 0.5 in13 mm of precipitation and 5 in12 cm of snow in a typical November.
- Record high
- 83°28° (1999)
- Record low
- −18°−28° (1985)
- Heating degree days
- 954
- Cooling degree days
- 0
Lantry in December
Highs average 32°0° and lows 13°−11°, with 0.5 in13 mm of precipitation and 9 in23 cm of snow in a typical December.
- Record high
- 72°22° (1965)
- Record low
- −33°−36° (1967)
- Heating degree days
- 1325
- Cooling degree days
- 0