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.
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 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] | |||||||||||||
To find the table data on the PRISM website, start by clicking Coordinates (under Location); copy Latitude and Longitude figures from top of table; click Zoom to location; click Precipitation, Minimum temp, Mean temp, Maximum temp; click 30-year normals, 1991-2020; click 800m; click Retrieve Time Series button.
To find the table data on the PRISM website, start by clicking Coordinates (under Location); copy Latitude and Longitude figures from top of table; click Zoom to location; click Precipitation, Minimum temp, Mean temp, Maximum temp; click 30-year normals, 1991-2020; click 800m; click Interpolate grid cell values; click Retrieve Time Series button.
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