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Template:Aldergrove weatherbox

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Climate data for Belfast International Airport
WMO ID: 03917; coordinates 54°39′50″N 6°13′30″W / 54.66376°N 6.22512°W / 54.66376; -6.22512 (BFS); elevation: 63 m (207 ft); 1991–2020 normals, extremes 1930–present
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 14.5
(58.1)
15.6
(60.1)
20.2
(68.4)
21.8
(71.2)
26.1
(79.0)
29.5
(85.1)
30.8
(87.4)
28.0
(82.4)
27.1
(80.8)
21.8
(71.2)
17.1
(62.8)
15.0
(59.0)
30.8
(87.4)
Mean daily maximum °C (°F) 7.3
(45.1)
7.9
(46.2)
9.7
(49.5)
12.3
(54.1)
15.2
(59.4)
17.6
(63.7)
19.1
(66.4)
18.7
(65.7)
16.6
(61.9)
13.1
(55.6)
9.8
(49.6)
7.6
(45.7)
12.9
(55.2)
Daily mean °C (°F) 4.7
(40.5)
4.9
(40.8)
6.3
(43.3)
8.5
(47.3)
11.2
(52.2)
13.8
(56.8)
15.4
(59.7)
15.2
(59.4)
13.2
(55.8)
10.2
(50.4)
7.1
(44.8)
5.0
(41.0)
9.6
(49.3)
Mean daily minimum °C (°F) 2.1
(35.8)
2.0
(35.6)
3.0
(37.4)
4.7
(40.5)
7.1
(44.8)
9.9
(49.8)
11.8
(53.2)
11.7
(53.1)
9.9
(49.8)
7.2
(45.0)
4.4
(39.9)
2.4
(36.3)
6.4
(43.5)
Record low °C (°F) −12.8
(9.0)
−11.7
(10.9)
−12.2
(10.0)
−5.1
(22.8)
−3.3
(26.1)
−1.2
(29.8)
2.2
(36.0)
1.1
(34.0)
−2.2
(28.0)
−4.4
(24.1)
−8.6
(16.5)
−14.9
(5.2)
−14.9
(5.2)
Average precipitation mm (inches) 77.0
(3.03)
63.3
(2.49)
60.6
(2.39)
55.6
(2.19)
55.9
(2.20)
68.0
(2.68)
78.8
(3.10)
84.5
(3.33)
69.2
(2.72)
88.0
(3.46)
87.7
(3.45)
83.5
(3.29)
872.0
(34.33)
Average precipitation days (≥ 1.0 mm) 14.7 13.2 13.0 12.0 11.6 11.9 14.1 14.2 12.1 14.0 15.5 15.2 161.3
Average snowy days 5 5 4 1 0 0 0 0 0 0 1 3 19
Average relative humidity (%) 89 87 88 89 90 90 90 92 92 91 90 89 91
Mean monthly sunshine hours 48.7 72.1 108.4 157.8 197.9 167.6 152.0 146.4 121.5 91.2 61.3 47.1 1,372
Source 1: Met Office[1] NOAA (relative humidity and snow days 1961–-1990)[2]
Source 2: KNMI[3][4] Starlings Roost Weather[5][6]

References

  1. ^ "Belfast International Airport 1991–2020 Averages". Met Office. Retrieved 4 September 2017.
  2. ^ "Belfast International Airport 1961–1990". NOAA. Retrieved 4 September 2017.
  3. ^ "Belfast International Airpoirt (Aldergrove) extreme values". KNMI. Retrieved 8 November 2011.
  4. ^ "Belfast International Airpoirt 1981-2010 average extreme values". KNMI. Retrieved 28 December 2017.
  5. ^ "Monthly Extreme Maximum Temperature". Starlings Roost Weather. Retrieved 3 March 2023.
  6. ^ "Monthly Extreme Minimum Temperature". Starlings Roost Weather. Retrieved 3 March 2023.