Mount Isolation

Mount Isolation is a mountain located in Coos County, New Hampshire. The mountain is part of the Presidential Range of the White Mountains. Mount Isolation is the highest peak on the Montalban Ridge which extends south from Boott Spur.

Mount Isolation
Highest point
Elevation	4,003 ft (1,220 m) NGVD 29[1]
Prominence	203 ft (62 m)[1]
Listing	White Mountain 4000-Footers
Coordinates	44°12′53″N 71°18′33″W[2]
Geography
Location	Coös County, New Hampshire, U.S.
Parent range	Presidential Range
Topo map	USGS Stairs Mountain

Isolation is in the Presidential Range–Dry River Wilderness, and as its name implies, is one of the most remote White Mountain peaks. Isolation just qualifies as one of the Appalachian Mountain Club's "Four-thousand footers", having the requisite 4,000 feet (1,219 m) of elevation and 200 feet (61 m) of prominence.

Climate

Climate data for Mount Isolation 44.2201 N, 71.3068 W, Elevation: 3,727 ft (1,136 m) (1991–2020 normals)
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean daily maximum °F (°C)	19.6 (−6.9)	22.6 (−5.2)	29.1 (−1.6)	41.2 (5.1)	54.3 (12.4)	62.4 (16.9)	67.2 (19.6)	65.7 (18.7)	60.2 (15.7)	47.7 (8.7)	35.1 (1.7)	25.2 (−3.8)	44.2 (6.8)
Daily mean °F (°C)	11.9 (−11.2)	14.0 (−10.0)	20.3 (−6.5)	32.3 (0.2)	45.2 (7.3)	53.9 (12.2)	58.9 (14.9)	57.6 (14.2)	51.7 (10.9)	39.8 (4.3)	28.5 (−1.9)	18.5 (−7.5)	36.1 (2.2)
Mean daily minimum °F (°C)	4.2 (−15.4)	5.3 (−14.8)	11.5 (−11.4)	23.5 (−4.7)	36.0 (2.2)	45.5 (7.5)	50.6 (10.3)	49.6 (9.8)	43.1 (6.2)	32.0 (0.0)	21.9 (−5.6)	11.7 (−11.3)	27.9 (−2.3)
Average precipitation inches (mm)	5.11 (130)	4.58 (116)	5.52 (140)	6.43 (163)	6.12 (155)	7.01 (178)	6.99 (178)	5.97 (152)	5.90 (150)	8.73 (222)	6.81 (173)	6.45 (164)	75.62 (1,921)
Source: PRISM Climate Group[3]

Climate data for North Isolation 44.2365 N, 71.3032 W, Elevation: 4,121 ft (1,256 m) (1991–2020 normals)
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean daily maximum °F (°C)	19.0 (−7.2)	20.9 (−6.2)	27.4 (−2.6)	39.0 (3.9)	52.2 (11.2)	60.2 (15.7)	65.0 (18.3)	63.5 (17.5)	58.0 (14.4)	45.9 (7.7)	33.8 (1.0)	24.5 (−4.2)	42.4 (5.8)
Daily mean °F (°C)	11.1 (−11.6)	12.6 (−10.8)	19.0 (−7.2)	30.7 (−0.7)	43.7 (6.5)	52.6 (11.4)	57.5 (14.2)	56.1 (13.4)	50.2 (10.1)	38.5 (3.6)	27.3 (−2.6)	17.5 (−8.1)	34.7 (1.5)
Mean daily minimum °F (°C)	3.3 (−15.9)	4.2 (−15.4)	10.5 (−11.9)	22.5 (−5.3)	35.3 (1.8)	44.9 (7.2)	50.0 (10.0)	48.8 (9.3)	42.3 (5.7)	31.1 (−0.5)	20.7 (−6.3)	10.5 (−11.9)	27.0 (−2.8)
Average precipitation inches (mm)	5.38 (137)	4.91 (125)	6.02 (153)	6.88 (175)	6.59 (167)	7.65 (194)	7.84 (199)	6.52 (166)	6.51 (165)	9.36 (238)	7.41 (188)	6.91 (176)	81.98 (2,083)
Source: PRISM Climate Group[4]

See also

• New Hampshire portal

• List of mountains in New Hampshire
• White Mountain National Forest