Bynum, Montana

Bynum is an unincorporated community and census-designated place in Teton County, Montana, United States, approximately 13 miles north of Choteau. Its population was 31 as of the 2010 census.^[3]

Bynum, Montana
Census-designated place & Unincorporated community (CDP)
Bynum, Montana Show map of Montana Bynum, Montana Show map of the United States
Coordinates: 47°58′05″N 112°18′59″W
Country	United States
State	Montana
County	Teton
Area [1]
• Total	1.63 sq mi (4.22 km2)
• Land	1.63 sq mi (4.22 km2)
• Water	0.00 sq mi (0.00 km2)
Elevation [2]	3,977 ft (1,212 m)
Population  (2020)
• Total	28
• Density	17.20/sq mi (6.64/km2)
Time zone	UTC-7 (Mountain (MST))
• Summer (DST)	UTC-6 (MDT)
Area code	406
GNIS feature ID	2583794[2]

Bynum is the site of a one-room country school, a general store, post office, an agate shop, and Two Medicine Dinosaur Center, which provides displays and educational programs about dinosaurs.

The town's name is derived from the surname of a family of early settlers in the area.^[4] The post office was established in 1885.^[5] In 1908 work on the Bynum Reservoir began.^[4]

In 2017, the NBC Today Show produced a segment highlighting Bynum's school and its tradition of starting each school day with a song and a dance.^[6]

Climate

Climate data for Bynum, Montana, 1991–2020 normals
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean daily maximum °F (°C)	36.0 (2.2)	35.8 (2.1)	43.6 (6.4)	51.3 (10.7)	61.6 (16.4)	70.5 (21.4)	80.3 (26.8)	79.3 (26.3)	69.6 (20.9)	55.0 (12.8)	43.0 (6.1)	34.5 (1.4)	55.0 (12.8)
Daily mean °F (°C)	25.2 (−3.8)	25.5 (−3.6)	32.2 (0.1)	40.3 (4.6)	50.2 (10.1)	58.5 (14.7)	66.2 (19.0)	65.4 (18.6)	56.4 (13.6)	43.5 (6.4)	33.1 (0.6)	25.4 (−3.7)	43.5 (6.4)
Mean daily minimum °F (°C)	14.3 (−9.8)	15.2 (−9.3)	20.7 (−6.3)	29.2 (−1.6)	38.8 (3.8)	46.5 (8.1)	52.1 (11.2)	51.4 (10.8)	43.2 (6.2)	32.0 (0.0)	23.1 (−4.9)	16.3 (−8.7)	31.9 (0.0)
Average precipitation inches (mm)	0.60 (15)	0.43 (11)	1.06 (27)	2.11 (54)	2.64 (67)	2.49 (63)	1.55 (39)	1.32 (34)	1.19 (30)	1.02 (26)	0.49 (12)	0.44 (11)	15.34 (389)
Source: NOAA[7]

Demographics

Historical population

Census	Pop.	Note	%±
2010	31		—
2020	28		−9.7%
U.S. Decennial Census[8]