Shannon, Ireland H I S T O R I C A L   W E A T H E R   D A T A

	Average Temperature
		Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 51 43 43 45 48 53 58 61 61 57 52 47 44 °C 10 6 6 7 8 11 14 16 16 13 11 8 6
		Years Charted: 18 Source: International Station Meteorological Climate Summary, Version 4.0

	Average High Temperature
		Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 56 47 47 50 54 59 63 67 66 62 56 51 48 °C 13 8 8 10 12 15 17 19 18 16 13 10 8
		Years Charted: 18 Source: International Station Meteorological Climate Summary, Version 4.0

	Average Low Temperature
		Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 45 38 38 40 42 46 51 55 55 51 47 42 40 °C 7 3 3 4 5 7 10 12 12 10 8 5 4
		Years Charted: 18 Source: International Station Meteorological Climate Summary, Version 4.0

	Highest Recorded Temperature
		Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 88 57 57 62 71 78 88 86 84 77 68 64 59 °C 31 13 13 16 21 25 31 30 28 25 20 17 15
		Years Charted: 18 Source: International Station Meteorological Climate Summary, Version 4.0

	Lowest Recorded Temperature
		Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 18 18 23 26 28 32 41 46 43 37 30 25 22 °C -7 -7 -5 -3 -2 0 5 7 6 2 -1 -3 -5
		Years Charted: 18 Source: International Station Meteorological Climate Summary, Version 4.0

	Average Precipitation
		Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. in. 38.4 3.9 2.9 2.7 2.3 2.4 2.6 2.9 3.5 3.3 3.8 3.8 4.2 mm 975 99 73 68 58 60 66 73 88 83 96 96 106
		Years Charted: 130 Source: International Station Meteorological Climate Summary, Version 4.0

	Average Wind Speed
		Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. mph 12 16 12 14 9 11 11 11 11 12 12 14 16 km/h 20 25 20 24 14 18 18 18 18 20 20 24 25
		Years Charted: 18 Source: International Station Meteorological Climate Summary, Version 4.0

	Average Morning Relative Humidity
		Total Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. % 89 88 87 87 89 88 88 89 90 90 89 89 89
		Years Charted: 18 Source: International Station Meteorological Climate Summary, Version 4.0

	Average Afternoon Relative Humidity
		Total Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. % 72 81 76 71 64 63 66 68 69 70 77 81 84
		Years Charted: 18 Source: International Station Meteorological Climate Summary, Version 4.0

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