Template:Blue Hills, Massachusetts weatherbox

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 68
(20)
71
(22)
89
(32)
94
(34)
96
(36)
99
(37)
100
(38)
101
(38)
99
(37)
88
(31)
81
(27)
74
(23)
101
(38)
Mean maximum °F (°C) 56.6
(13.7)
56.9
(13.8)
65.6
(18.7)
79.4
(26.3)
87.3
(30.7)
90.0
(32.2)
92.9
(33.8)
91.3
(32.9)
86.9
(30.5)
77.6
(25.3)
68.4
(20.2)
60.0
(15.6)
94.7
(34.8)
Mean daily maximum °F (°C) 34.7
(1.5)
37.0
(2.8)
44.1
(6.7)
56.3
(13.5)
66.8
(19.3)
75.4
(24.1)
81.7
(27.6)
80.2
(26.8)
72.7
(22.6)
61.0
(16.1)
50.1
(10.1)
40.2
(4.6)
58.4
(14.6)
Daily mean °F (°C) 26.5
(−3.1)
28.2
(−2.1)
35.5
(1.9)
47.1
(8.4)
58.5
(14.7)
66.5
(19.2)
72.7
(22.6)
71.4
(21.9)
64.2
(17.9)
52.5
(11.4)
42.0
(5.6)
32.5
(0.3)
49.8
(9.9)
Mean daily minimum °F (°C) 18.3
(−7.6)
19.5
(−6.9)
26.9
(−2.8)
37.9
(3.3)
48.2
(9.0)
57.6
(14.2)
63.8
(17.7)
62.6
(17.0)
55.6
(13.1)
44.0
(6.7)
33.8
(1.0)
24.9
(−3.9)
41.1
(5.1)
Mean minimum °F (°C) 0.0
(−17.8)
3.1
(−16.1)
10.1
(−12.2)
26.7
(−2.9)
37.5
(3.1)
45.9
(7.7)
54.9
(12.7)
53.4
(11.9)
42.3
(5.7)
30.5
(−0.8)
19.6
(−6.9)
8.7
(−12.9)
−2.5
(−19.2)
Record low °F (°C) −14
(−26)
−21
(−29)
−5
(−21)
6
(−14)
27
(−3)
36
(2)
44
(7)
39
(4)
28
(−2)
21
(−6)
5
(−15)
−19
(−28)
−21
(−29)
Average precipitation inches (mm) 4.50
(114)
4.00
(102)
5.52
(140)
4.76
(121)
3.82
(97)
4.63
(118)
3.47
(88)
3.91
(99)
4.06
(103)
5.49
(139)
4.31
(109)
5.39
(137)
53.86
(1,367)
Average snowfall inches (cm) 18.6
(47)
18.2
(46)
15.0
(38)
2.8
(7.1)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.7
(1.8)
1.8
(4.6)
12.6
(32)
69.7
(176.5)
Average extreme snow depth inches (cm) 10.6
(27)
11.5
(29)
9.8
(25)
2.6
(6.6)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.3
(0.76)
1.3
(3.3)
7.7
(20)
17.1
(43)
Average precipitation days (≥ 0.01 in) 13.2 11.3 12.5 12.5 13.0 12.1 10.5 10.2 9.2 11.5 10.9 12.6 139.5
Average snowy days (≥ 0.1 in) 8.1 7.1 5.7 1.3 0.0 0.0 0.0 0.0 0.0 0.4 1.3 5.3 29.2
Mean monthly sunshine hours 132.1 146.7 174.0 185.6 220.2 231.8 258.1 242.5 204.1 182.1 133.3 125.9 2,236.4
Percent possible sunshine 46.3 50.9 48.5 47.9 50.4 52.7 58.0 58.7 56.7 55.1 47.0 45.9 51.5
Source 1: NOAA[1][2]
Source 2: BHO[3]

References

  1. ^ "NOAA Online Weather Data – NWS Boston". National Weather Service. Retrieved October 31, 2024.
  2. ^ "U.S. Climate Normals Quick Access – Station: Blue Hill COOP, MA". National Oceanic and Atmospheric Administration. Retrieved February 10, 2023.
  3. ^ "Blue Hill Observatory daily sunshine data". Blue Hill Meteorological Observatory. Retrieved October 11, 2015.