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Template:Isles of Scilly weatherbox

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Climate data for St Mary's Airport
WMO ID: 03803; coordinates 49°54′52″N 6°17′45″W / 49.91451°N 6.29578°W / 49.91451; -6.29578 (Met Office ISC); elevation: 10 m (33 ft); 1991–2020 averages
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 15.1
(59.2)
15.0
(59.0)
18.5
(65.3)
20.8
(69.4)
23.6
(74.5)
26.1
(79.0)
27.8
(82.0)
26.8
(80.2)
26.3
(79.3)
24.0
(75.2)
20.9
(69.6)
15.3
(59.5)
27.8
(82.0)
Mean daily maximum °C (°F) 9.9
(49.8)
10.0
(50.0)
10.9
(51.6)
12.6
(54.7)
14.7
(58.5)
17.3
(63.1)
19.3
(66.7)
19.7
(67.5)
18.3
(64.9)
15.0
(59.0)
12.2
(54.0)
10.6
(51.1)
14.2
(57.6)
Daily mean °C (°F) 8.2
(46.8)
8.2
(46.8)
8.8
(47.8)
10.1
(50.2)
12.1
(53.8)
14.7
(58.5)
16.6
(61.9)
17.0
(62.6)
15.7
(60.3)
12.9
(55.2)
10.5
(50.9)
8.9
(48.0)
12.0
(53.6)
Mean daily minimum °C (°F) 6.4
(43.5)
6.3
(43.3)
6.7
(44.1)
7.5
(45.5)
9.5
(49.1)
12.0
(53.6)
13.8
(56.8)
14.3
(57.7)
13.1
(55.6)
10.8
(51.4)
8.7
(47.7)
7.1
(44.8)
9.7
(49.4)
Record low °C (°F) −7.2
(19.0)
−4.3
(24.3)
−1.6
(29.1)
−0.4
(31.3)
3.5
(38.3)
6.8
(44.2)
9.7
(49.5)
8.6
(47.5)
8.4
(47.1)
5.5
(41.9)
2.3
(36.1)
−0.8
(30.6)
−7.2
(19.0)
Average precipitation mm (inches) 93.2
(3.67)
75.6
(2.98)
57.4
(2.26)
49.6
(1.95)
47.6
(1.87)
50.4
(1.98)
68.5
(2.70)
76.8
(3.02)
71.1
(2.80)
89.0
(3.50)
100.0
(3.94)
100.1
(3.94)
879.3
(34.61)
Average precipitation days 15.1 13.3 11.7 10.3 8.6 8.7 8.8 10.3 9.6 13.8 15.6 15.9 141.7
Average relative humidity (%) (daily average) 82 81 83 85 86 86 86 85 86 85 82 81 84
Average dew point °C (°F) 6
(43)
5
(41)
6
(43)
7
(45)
10
(50)
12
(54)
14
(57)
14
(57)
13
(55)
11
(52)
8
(46)
6
(43)
9
(49)
Mean monthly sunshine hours 58.3 83.4 131.6 195.2 220.6 211.0 205.0 196.6 165.1 116.9 72.1 52.1 1,707.9
Source 1: Met Office[1]
Source 2: Time and Date (dewpoints and humidity, between 2005-2015)[2]

References

  1. ^ "St Mary's Heliport Climatic Averages 1991-2020". Met Office. December 2021. Retrieved 16 December 2021.
  2. ^ "Climate & Weather Averages in Hugh Town, United Kingdom". Time and Date. Retrieved 16 January 2022.