Ken Cook
Reports for January 2025 for the Copley sites. (Averages refer to 1991-2020)
Dry, sunny and cold. Quite snowy and frosty.
(Differences from 1991-2020 averages in brackets)
Copley Lead Mill site 218metres asl
Temperature °C (09Z-09Z)
Mean maximum 3.9(-1.3) High 8.8 on 14th, Low -2.2 on 8th
Mean minimum -1.6 (-1.2) Low -7.1 on 9th, High 3.4 on 1st
Mean screen 1.1 (-1.3)
Mean 30cm earth 2.3 (-1.1)
Air frost 21 (2)
Days snow lying 50% 09Z, 12 (2) snow on ground 22
Max depth 09Z 20cm on 5th
River Gaunless data (Copley Lead Mill Environment Agency monitoring site 09Z daily readings)
Mean level 0.20m high 0.55m on 1st, low 0.14m on 10th ((normal 0.00m to 0.60m)
Mean river temperature 09Z 3.2, high 5.6 on 15th, low 1.3 on 9th
Copley Met O site 253metres asl
Temperature °C (09Z-09Z)
Mean maximum 4.5 (-0.9) High 10.7 on 14th, Low 0.0 on 8th
Mean minimum -1.0 (-1.4) Low -6.3 on 12th, High 5.1 on 15th
Mean screen 1.7 (-1.2)
Mean grass minimum -4.9 (-2.5) Low -12.8 on 11th
Mean concrete minimum -1.8 (-1.3) Low -7.1 on 11th
Mean 30cm earth 4.3 (0.2)
Mean 100cm earth 5.8 (0.5)
Air frost 21 (6) 257.3 hours
Ground frost 29 (5)
Concrete frost 20 (1)
Precipitation mm (09Z-09Z)
Total 67.0 (93%) High 20.8 on 5th
Days 0.2mm 12 (-8)
Days 1.0mm 7 (-7)
Hail 2 (0)
Thunder 0 (0)
Snow cm
Days falling 12 (-1)
Days lying 50% 09Z, 10 (2) snow on ground 16
Fresh falls 09Z 31cm (10cm)
Max depth 09Z 24cm on 6th
Sunshine hr (R&D electronic recorder) Sunshine hr (Campbell Stokes)
Total 97.4(135%) 85.1 (115%)
Max day 7.6 on 30th 7.3 on 30th
Average daily 3.1 (40% of the possible 7.9hr / day) 2.7 (35% possible)
Days no sun 7 (-1) 8 (-1)
Fog (Vis <1km 09Z), 7 (3)
Pressure mb (mean sea level)
Average 09Z 1009.3 (-3.5)
High 1036.9 on 12th
Low 971.9 on 27th
Wind KT (Davis recorder)
Mean SW 8.3 (-2.3) High gust 69 on 24th
Gale days 1 (-1)
Ken Cook, Copley, Teesdale / Weardale watershed
