Bridger weather by month
What a typical year looks like in Bridger, South Dakota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Milesville 5 NE, 24 km from Bridger; records cover 1911–2026.
The year at a glance
- Precipitation a year
- 20 in508 mm
- Snow a year
- 45 in114 cm
- Last spring freeze
- May 11
- First fall freeze
- Oct 4
- Heating degree days
- 7,181
- Cooling degree days
- 825
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −15°−26° (heating, 99%) and 102°39° (cooling, 1%).
Month by month
Bridger in January
Highs average 31°0° and lows 10°−12°, with 0.44 in11 mm of precipitation and 7 in17 cm of snow in a typical January.
- Record high
- 71°22° (2015)
- Record low
- −41° (2018)
- Heating degree days
- 1375
- Cooling degree days
- 0
Bridger in February
Highs average 35°2° and lows 13°−10°, with 0.69 in18 mm of precipitation and 10 in24 cm of snow in a typical February.
- Record high
- 73°23° (1982)
- Record low
- −39° (1917)
- Heating degree days
- 1139
- Cooling degree days
- 0
Bridger in March
Highs average 47°8° and lows 23°−5°, with 1.1 in28 mm of precipitation and 7 in18 cm of snow in a typical March.
- Record high
- 86°30° (2012)
- Record low
- −29°−34° (1998)
- Heating degree days
- 927
- Cooling degree days
- 0
Bridger in April
Highs average 59°15° and lows 33°1°, with 2 in52 mm of precipitation and 7 in18 cm of snow in a typical April.
- Record high
- 96°36° (1980)
- Record low
- −3°−19° (2018)
- Heating degree days
- 560
- Cooling degree days
- 2
Bridger in May
Highs average 70°21° and lows 44°7°, with 3.3 in85 mm of precipitation and 0.7 in1.8 cm of snow in a typical May.
- Record high
- 103°39° (1969)
- Record low
- 12°−11° (1950)
- Heating degree days
- 270
- Cooling degree days
- 25
Bridger in June
Highs average 80°27° and lows 55°13°, with 3.5 in88 mm of precipitation in a typical June.
- Record high
- 113°45° (2002)
- Record low
- 30°−1° (1969)
- Heating degree days
- 53
- Cooling degree days
- 129
Bridger in July
Highs average 88°31° and lows 61°16°, with 2.8 in71 mm of precipitation in a typical July.
- Record high
- 116°47° (2006)
- Record low
- 37°3° (1912)
- Heating degree days
- 7
- Cooling degree days
- 306
Bridger in August
Highs average 87°31° and lows 59°15°, with 1.8 in45 mm of precipitation in a typical August.
- Record high
- 110°43° (1970)
- Record low
- 32°0° (1911)
- Heating degree days
- 14
- Cooling degree days
- 265
Bridger in September
Highs average 78°26° and lows 49°10°, with 1.5 in37 mm of precipitation in a typical September.
- Record high
- 107°42° (1960)
- Record low
- 20°−7° (1951)
- Heating degree days
- 126
- Cooling degree days
- 92
Bridger in OctoberThis month
Highs average 62°16° and lows 36°2°, with 1.9 in47 mm of precipitation and 2.4 in6.1 cm of snow in a typical October.
- Record high
- 98°37° (1963)
- Record low
- −8°−22° (1919)
- Heating degree days
- 509
- Cooling degree days
- 6
Bridger in November
Highs average 46°8° and lows 23°−5°, with 0.53 in13 mm of precipitation and 5 in13 cm of snow in a typical November.
- Record high
- 85°29° (1999)
- Record low
- −25°−32° (1959)
- Heating degree days
- 912
- Cooling degree days
- 0
Bridger in December
Highs average 34°1° and lows 13°−11°, with 0.55 in14 mm of precipitation and 7 in17 cm of snow in a typical December.
- Record high
- 70°21° (1998)
- Record low
- −33°−36° (1990)
- Heating degree days
- 1289
- Cooling degree days
- 0