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| Malin Head 1971–2000 averages
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| TEMPERATURE (degrees Celsius) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| mean daily max | 7.9 | 7.9 | 9.0 | 10.4 | 12.8 | 14.8 | 16.6 | 17.0 | 15.4 | 12.9 | 10.1 | 8.6 | 11.9 |
| mean daily min | 3.3 | 3.3 | 4.1 | 5.4 | 7.5 | 9.8 | 11.9 | 12.0 | 10.5 | 8.4 | 5.6 | 4.3 | 7.2 |
| mean temperature | 5.6 | 5.6 | 6.6 | 7.9 | 10.2 | 12.3 | 14.3 | 14.5 | 13.0 | 10.6 | 7.9 | 6.5 | 9.6 |
| absolute max. | 14.4 | 14.5 | 16.1 | 19.5 | 24.7 | 25.0 | 27.0 | 25.9 | 23.4 | 20.6 | 17.6 | 15.1 | 27.0 |
| min. maximum | -1.0 | 1.0 | 2.6 | 4.5 | 5.5 | 10.2 | 10.2 | 11.9 | 9.9 | 7.6 | 4.4 | 0.4 | -1.0 |
| max. minimum | 11.2 | 11.8 | 10.1 | 11.0 | 14.2 | 15.1 | 17.4 | 17.0 | 16.8 | 16.5 | 13.0 | 12.2 | 17.4 |
| absolute min. | -6.2 | -6.2 | -4.4 | -1.5 | 0.5 | 2.6 | 6.3 | 6.4 | 2.0 | 0.4 | -2.5 | -4.8 | -6.2 |
| mean num. of days with air frost | 2.8 | 2.2 | 0.9 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 1.7 | 8.4 |
| mean num. of days with ground frost | 9.4 | 8.4 | 6.4 | 3.7 | 0.9 | 0.0 | 0.0 | 0.0 | 0.1 | 0.4 | 3.4 | 6.7 | 39.5 |
| mean 5cm soil | 3.8 | 3.3 | 4.7 | 7.6 | 11.3 | 14.3 | 15.1 | 14.4 | 11.8 | 9.1 | 5.9 | 4.7 | 8.8 |
| mean 10cm soil | 4.1 | 3.8 | 5.0 | 7.3 | 10.7 | 13.5 | 14.6 | 14.1 | 11.9 | 9.5 | 6.4 | 5.1 | 8.8 |
| mean 20cm soil | 5.0 | 4.7 | 5.8 | 7.9 | 10.9 | 13.5 | 14.6 | 14.4 | 12.6 | 10.3 | 7.4 | 5.9 | 9.4 |
| SUNSHINE (hours) | | | | | | | | | | | | | |
| mean daily duration | 1.1 | 2.0 | 2.8 | 4.8 | 6.3 | 5.5 | 4.4 | 4.4 | 3.7 | 2.5 | 1.5 | 1.0 | 3.3 |
| greatest daily duration | 7.4 | 8.6 | 11.6 | 13.5 | 15.5 | 16.0 | 16.1 | 14.8 | 11.7 | 9.4 | 7.3 | 6.7 | 16.1 |
| mean num. of days with no sun | 11.6 | 6.7 | 6.1 | 3.6 | 2.2 | 2.5 | 2.8 | 2.7 | 3.5 | 6.2 | 8.3 | 12.5 | 68.6 |
| RAINFALL (mm) | | | | | | | | | | | | | |
| mean monthly total | 121.7 | 85.5 | 89.2 | 61.7 | 55.8 | 66.1 | 76.8 | 92.0 | 99.8 | 116.4 | 113.1 | 116.0 | 1094.2 |
| greatest daily total | 46.3 | 29.7 | 25.9 | 32.1 | 35.0 | 26.5 | 38.7 | 49.9 | 48.6 | 60.0 | 41.0 | 39.6 | 60.0 |
| mean num. of days with >= 0.2mm | 22 | 18 | 21 | 17 | 16 | 16 | 19 | 19 | 19 | 22 | 22 | 22 | 233 |
| mean num. of days with >= 1.0mm | 19 | 13 | 16 | 12 | 11 | 11 | 13 | 14 | 15 | 17 | 18 | 18 | 177 |
| mean num. of days with >= 5.0mm | 9 | 6 | 6 | 3 | 3 | 4 | 5 | 6 | 6 | 8 | 8 | 8 | 72 |
| WIND (knots) | | | | | | | | | | | | | |
| mean monthly speed | 19.4 | 18.8 | 17.7 | 14.8 | 13.6 | 13.1 | 12.6 | 12.9 | 15.4 | 17.4 | 18.2 | 18.9 | 16.1 |
| max. gust | 87 | 86 | 90 | 71 | 71 | 65 | 74 | 62 | 85 | 78 | 92 | 96 | 96 |
| max. mean 10-minute speed | 61 | 57 | 67 | 52 | 49 | 50 | 55 | 45 | 61 | 57 | 61 | 67 | 67 |
| mean num. of days with gales | 12.5 | 10.0 | 8.8 | 3.9 | 2.3 | 1.2 | 0.7 | 1.2 | 3.8 | 6.9 | 9.2 | 10.7 | 71.1 |
| WEATHER (mean no. of days with..) | | | | | | | | | | | | | |
| snow or sleet | 6.7 | 5.3 | 4.1 | 2.3 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.5 | 3.9 | 24.1 |
| snow lying at 0900UTC | 0.6 | 0.6 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.7 | 2.3 |
| hail | 9.7 | 7.0 | 8.5 | 4.9 | 2.0 | 0.4 | 0.0 | 0.2 | 0.9 | 3.2 | 7.2 | 7.9 | 51.8 |
| thunder | 0.6 | 0.5 | 0.3 | 0.2 | 0.4 | 0.7 | 0.8 | 0.6 | 0.3 | 0.5 | 0.5 | 0.6 | 6.0 |
| fog | 0.4 | 0.4 | 0.8 | 2.0 | 1.7 | 1.9 | 2.0 | 1.2 | 0.8 | 0.3 | 0.2 | 0.3 | 12.0 |