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Sonnette is an unincorporated community in west central Powder River County, Montana, United States. The community is situated near the headwaters of Pumpkin Creek, just west of the Custer National Forest. It lies along local roads northwest of the town of Broadus, the county seat of Powder River County.[2]

Sonnette
Unincorporated community
Sonnette
Location within the state of Montana
Coordinates: 45°24′47″N 105°49′53″W
CountryUnited States
StateMontana
CountyPowder River
Elevation
3,766 ft (1,148 m)
Time zoneUTC-7 (Mountain (MST))
 • Summer (DST)UTC-6 (MDT)
GNIS feature ID790852[1]

Climate


According to the Köppen Climate Classification system, Sonnette has a semi-arid climate, abbreviated "BSk" on climate maps.[3]

Climate data for Sonnette, Montana, 1991–2020 normals, extremes 1965–present
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 68
(20)		 70
(21)		 80
(27)		 87
(31)		 103
(39)		 105
(41)		 107
(42)		 103
(39)		 100
(38)		 91
(33)		 77
(25)		 71
(22)		 107
(42)
Mean maximum °F (°C) 54.2
(12.3)		 56.5
(13.6)		 68.7
(20.4)		 77.4
(25.2)		 83.9
(28.8)		 91.3
(32.9)		 98.0
(36.7)		 96.8
(36.0)		 92.9
(33.8)		 81.1
(27.3)		 66.1
(18.9)		 54.3
(12.4)		 99.3
(37.4)
Average high °F (°C) 36.8
(2.7)		 38.7
(3.7)		 48.8
(9.3)		 57.3
(14.1)		 66.6
(19.2)		 76.5
(24.7)		 86.5
(30.3)		 85.9
(29.9)		 75.3
(24.1)		 59.6
(15.3)		 46.5
(8.1)		 36.8
(2.7)		 59.6
(15.3)
Daily mean °F (°C) 23.2
(−4.9)		 25.0
(−3.9)		 34.7
(1.5)		 43.0
(6.1)		 52.3
(11.3)		 61.7
(16.5)		 69.7
(20.9)		 68.5
(20.3)		 58.5
(14.7)		 44.8
(7.1)		 32.5
(0.3)		 23.6
(−4.7)		 44.8
(7.1)
Average low °F (°C) 9.5
(−12.5)		 11.3
(−11.5)		 20.6
(−6.3)		 28.8
(−1.8)		 38.1
(3.4)		 46.8
(8.2)		 53.0
(11.7)		 51.1
(10.6)		 41.7
(5.4)		 30.0
(−1.1)		 18.4
(−7.6)		 10.4
(−12.0)		 30.0
(−1.1)
Mean minimum °F (°C) −17.4
(−27.4)		 −14.4
(−25.8)		 −3.5
(−19.7)		 10.3
(−12.1)		 21.6
(−5.8)		 34.0
(1.1)		 41.6
(5.3)		 37.8
(3.2)		 26.7
(−2.9)		 9.9
(−12.3)		 −4.7
(−20.4)		 −13.2
(−25.1)		 −25.7
(−32.1)
Record low °F (°C) −38
(−39)		 −42
(−41)		 −33
(−36)		 −8
(−22)		 11
(−12)		 26
(−3)		 33
(1)		 25
(−4)		 10
(−12)		 −16
(−27)		 −25
(−32)		 −44
(−42)		 −44
(−42)
Average precipitation inches (mm) 0.50
(13)		 0.70
(18)		 0.91
(23)		 1.85
(47)		 2.95
(75)		 2.69
(68)		 1.67
(42)		 1.10
(28)		 1.09
(28)		 1.38
(35)		 0.56
(14)		 0.51
(13)		 15.91
(404)
Average snowfall inches (cm) 3.9
(9.9)		 6.6
(17)		 5.0
(13)		 3.4
(8.6)		 0.2
(0.51)		 0.0
(0.0)		 0.0
(0.0)		 0.0
(0.0)		 0.0
(0.0)		 1.3
(3.3)		 3.1
(7.9)		 5.6
(14)		 29.1
(74.21)
Average precipitation days (≥ 0.01 in) 3.8 5.6 4.9 7.3 8.7 7.9 6.5 5.1 4.6 5.8 3.8 3.6 67.6
Average snowy days (≥ 0.1 in) 1.9 2.4 1.3 1.0 0.1 0.0 0.0 0.0 0.0 0.8 1.3 2.0 10.8
Source 1: NOAA[4]
Source 2: National Weather Service[5]

References


  1. "Sonnette, Montana". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
  2. Rand McNally. The Road Atlas '08. Chicago: Rand McNally, 2008, p. 61.
  3. Climate Summary for Sonnette, Montana
  4. "U.S. Climate Normals Quick Access". National Oceanic and Atmospheric Administration. Retrieved August 7, 2022.
  5. "NOAA Online Weather Data". National Weather Service. Retrieved August 7, 2022.


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