World Extremes
| No. | Location | Station ID | Amount |
| 1 | Guernsey Airport (United Kingdom) | 03894 | 12.3°C |
| 2 | Scilly, Saint Mary's (United Kingdom) | 03803 | 12.2°C |
| 3 | Jersey Airport (United Kingdom) | 03895 | 12°C |
| 4 | Camborne (United Kingdom) | 03808 | 11.7°C |
| 5 | Culdrose (United Kingdom) | 03809 | 11.7°C |
| 6 | Chivenor (United Kingdom) | 03707 | 11.6°C |
| 7 | Exeter Airport No2 (United Kingdom) | 03844 | 11.6°C |
| 8 | Bournemouth Airport (United Kingdom) | 03862 | 11.5°C |
| 9 | Isle Of Portland (United Kingdom) | 03857 | 11.4°C |
| 10 | Plymouth (United Kingdom) | 03827 | 11.2°C |
| 11 | Milford Haven (United Kingdom) | 03604 | 11.1°C |
| 12 | Pembrey Sands (United Kingdom) | 03605 | 11.1°C |
| 13 | Yeovilton (United Kingdom) | 03853 | 11.1°C |
| 14 | Mumbles (United Kingdom) | 03609 | 11°C |
| 15 | Shoreham Airport (United Kingdom) | 03876 | 10.9°C |
| Script courtesy of Michael Holden of Relay Weather. Data courtesy of Ogimet | |||
| No. | Location | Station ID | Amount |
| 1 | Aonach Mor (United Kingdom) | 03041 | -6°C |
| 2 | Cairnwell (United Kingdom) | 03072 | -5.9°C |
| 3 | Benson (United Kingdom) | 03658 | -5.6°C |
| 4 | Great Dun Fell (United Kingdom) | 03227 | -4.8°C |
| 5 | Bournemouth Airport (United Kingdom) | 03862 | -3.5°C |
| 6 | Drumalbin (United Kingdom) | 03155 | -3.4°C |
| 7 | Loch Glascarnoch (United Kingdom) | 03031 | -3.2°C |
| 8 | Farnborough (United Kingdom) | 03768 | -2.7°C |
| 9 | Yeovilton (United Kingdom) | 03853 | -2.7°C |
| 10 | Bealach Na Ba No2 (United Kingdom) | 03039 | -2.4°C |
| 11 | Dunkeswell Aerodrome (United Kingdom) | 03840 | -2.3°C |
| 12 | Warcop Range (United Kingdom) | 03226 | -2.2°C |
| 13 | Boscombe Down (United Kingdom) | 03746 | -2.1°C |
| 14 | Glen Ogle (United Kingdom) | 03148 | -2.1°C |
| 15 | Almondsbury (United Kingdom) | 03930 | -1.9°C |
| Script courtesy of Michael Holden of Relay Weather. Data courtesy of Ogimet | |||
| No. | Location | Station ID | Amount |
| 1 | Mumbles (United Kingdom) | 03609 | 37.4 mm |
| 2 | Plymouth (United Kingdom) | 03827 | 24.2 mm |
| 3 | Capel Curig (United Kingdom) | 03305 | 21.2 mm |
| 4 | Culdrose (United Kingdom) | 03809 | 20 mm |
| 5 | St. Athan (United Kingdom) | 03716 | 15 mm |
| 6 | Exeter Airport No2 (United Kingdom) | 03844 | 14.2 mm |
| 7 | Aberdaron (United Kingdom) | 03405 | 14 mm |
| 8 | Valley (United Kingdom) | 03302 | 13 mm |
| 9 | Jersey Airport (United Kingdom) | 03895 | 13 mm |
| 10 | Lough Fea (United Kingdom) | 03911 | 12 mm |
| 11 | Portglenone (United Kingdom) | 03915 | 12 mm |
| 12 | Cardinham (United Kingdom) | 03823 | 12 mm |
| 13 | Guernsey Airport (United Kingdom) | 03894 | 12 mm |
| 14 | Milford Haven (United Kingdom) | 03604 | 12 mm |
| 15 | Pembrey Sands (United Kingdom) | 03605 | 12 mm |
| Script courtesy of Michael Holden of Relay Weather. Data courtesy of Ogimet | |||
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| Warning: Many data filters have been introduced to the above data. Use caution with this data as some extreme values can be erroneous due to unsuspected errors in synop reports. All data should be verified. Note that the values we listed here are from international released synop reports, and for certain there will be other extreme values not in this list |