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Template:Mount Washington, New Hampshire weatherbox

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Climate data for Mount Washington, elev. 6,267 ft (1,910.2 m) near the summit (1991–2020 normals, extremes 1933–present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 48
(9)
48
(9)
54
(12)
60
(16)
66
(19)
72
(22)
71
(22)
72
(22)
69
(21)
62
(17)
52
(11)
47
(8)
72
(22)
Mean maximum °F (°C) 38.7
(3.7)
35.6
(2.0)
40.8
(4.9)
49.0
(9.4)
58.8
(14.9)
64.5
(18.1)
65.4
(18.6)
64.2
(17.9)
61.4
(16.3)
53.8
(12.1)
45.8
(7.7)
39.8
(4.3)
67.2
(19.6)
Mean daily maximum °F (°C) 14.9
(−9.5)
14.8
(−9.6)
20.8
(−6.2)
30.7
(−0.7)
42.5
(5.8)
51.4
(10.8)
55.3
(12.9)
54.2
(12.3)
49.1
(9.5)
37.7
(3.2)
28.4
(−2.0)
20.1
(−6.6)
35.0
(1.7)
Daily mean °F (°C) 5.8
(−14.6)
5.9
(−14.5)
12.9
(−10.6)
23.7
(−4.6)
36.3
(2.4)
45.5
(7.5)
49.9
(9.9)
48.7
(9.3)
43.1
(6.2)
31.3
(−0.4)
20.8
(−6.2)
11.8
(−11.2)
28.0
(−2.2)
Mean daily minimum °F (°C) −3.2
(−19.6)
−3.0
(−19.4)
4.9
(−15.1)
16.7
(−8.5)
30.2
(−1.0)
39.6
(4.2)
44.5
(6.9)
43.2
(6.2)
37.1
(2.8)
24.9
(−3.9)
13.1
(−10.5)
3.5
(−15.8)
21.0
(−6.1)
Mean minimum °F (°C) −28.6
(−33.7)
−25.2
(−31.8)
−19.4
(−28.6)
−1.1
(−18.4)
14.0
(−10.0)
25.7
(−3.5)
34.4
(1.3)
31.4
(−0.3)
21.3
(−5.9)
8.3
(−13.2)
−5.8
(−21.0)
−20.8
(−29.3)
−32.3
(−35.7)
Record low °F (°C) −47
(−44)
−47
(−44)
−38
(−39)
−20
(−29)
−2
(−19)
8
(−13)
24
(−4)
20
(−7)
9
(−13)
−5
(−21)
−26
(−32)
−46
(−43)
−47
(−44)
Average precipitation inches (mm) 5.74
(146)
5.45
(138)
6.72
(171)
7.31
(186)
7.68
(195)
8.59
(218)
8.93
(227)
7.72
(196)
7.66
(195)
9.99
(254)
8.09
(205)
7.35
(187)
91.23
(2,317)
Average snowfall inches (cm) 41.4
(105)
43.3
(110)
46.2
(117)
33.1
(84)
12.9
(33)
1.3
(3.3)
0.0
(0.0)
0.1
(0.25)
1.2
(3.0)
19.0
(48)
35.6
(90)
47.7
(121)
281.8
(716)
Average extreme snow depth inches (cm) 14.1
(36)
16.3
(41)
17.6
(45)
14.5
(37)
6.1
(15)
0.5
(1.3)
0.0
(0.0)
0.0
(0.0)
0.3
(0.76)
5.7
(14)
8.3
(21)
12.7
(32)
21.0
(53)
Average precipitation days (≥ 0.01 in) 20.0 18.3 19.7 18.3 17.4 17.6 17.5 15.5 13.7 18.1 19.2 21.0 216.3
Average snowy days (≥ 0.1 in) 19.6 18.1 18.0 14.1 6.5 1.2 0.2 0.2 1.3 9.9 15.1 19.7 123.9
Mean monthly sunshine hours 92.0 106.9 127.6 143.2 171.3 151.3 145.0 130.5 127.2 127.1 82.4 83.1 1,487.6
Percent possible sunshine 32 36 34 35 37 33 31 30 34 37 29 30 33
Source 1: NOAA (sun 1961–1990)[1][2][3]
Source 2: Mount Washington Observatory (extremes 1933–present)[4]


References

[edit]
  1. ^ "NOWData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved November 25, 2024.
  2. ^ "Station: MT WASHINGTON, NH". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic and Atmospheric Administration. Archived from the original on May 12, 2021. Retrieved 2021-05-18.
  3. ^ "WMO Climate Normals for MOUNT WASHINGTON, NH 1961–1990". National Oceanic and Atmospheric Administration. Archived from the original on May 25, 2017. Retrieved 2014-06-09.
  4. ^ "Mount Washington Observatory: Normals, Means and Extreme". Mount Washington Observatory. Archived from the original on November 26, 2024. Retrieved November 26, 2024.