A wet month with mean temperature around average. Cold initially, with frost and occasional mainly slight snow. Storm Goretti brought a more organised area of snow on the 8th/9th with 15 cm recorded during the early hours of the 9th. Lying snow persisted until the 11th when a brief mild spell removed it. The rest of January saw unsettled conditions with rain on all days except the 28th. Daytime temperatures were at or just below average, but most nights were relatively mild. Persistent fog from the evening of the 17th until the morning of the 19th.
Anomalies (in brackets) refer to the estimated 1991-2020 averages.
Mean max: 6.4 (-1.0)
Mean min: 2.2 (+0.8)
Mean temp: 4.3 (-0.1)
Mean 30cm earth temp: 5.7
Highest max: 10.8 (11th,12th`)
Lowest max: 1.3 ( 5th)
Lowest min: -2.8 ( 5th)
Highest min: 8.7 (12th)
Lowest grass min: -8.1 ( 5th)
Air frosts: 10 ( -1)
Air frost hours: 66.7
Ground frosts: 16 ( -2)
Days with max 10.0 to 14.9: 2
Days with max 5.0 to 9.9: 21
Days with max 0.0 to 4.9: 8
Days with min 5.0 to 9.9: 7
Days with min 0.0 to 4.9: 14
Days with min -5.0 to -0.1: 10
Total rainfall: 128.6 mm (171%)
Wettest day: 32.6 mm ( 8th)
Rain days (0.2 mm or more): 29 (+9)
Wet days (1.0 mm or more): 19 (+5)
Days >= 10mm: 3 (+1)
Days >= 20mm: 1
Days with snow/sleet falling: 8
Days with 50%+ snow cover at 09z: 8 (+4)
Deepest at 0900z 10 cm ( 9th)
Days with thunder heard: 0
Days with hail: 1
Days with fog at 0900z: 4
Highest 10-min mean wind: 17 kn (11th)
Max gust: 32 kn (11th)
Days with gale: 0
Highest wind run: 226.0 nm ( 6th)
Wind direction at 0900z: N: 1; NE: 2; E: 9; SE: 2; S: 2; SW: 5; W: 4; NW: 3; Calm: 3
Maximum pressure: 1020.9 (10th)
Minimum pressure: 977.3 (27th)