Ken Cook
Reports for March 2025 for the Copley sites. (Averages refer to 1991-2020)
Dry and sunny, mild by day.
(Differences from 1991-2020 averages in brackets)
Copley Lead Mill site 218metres asl
Temperature °C (09Z-09Z)
Mean maximum 9.7 (1.5) High 14.6 on 31st, Low 5.2 on 13th
Mean minimum 0.4 (-0.1) Low -5.6 on 13th, High 5.1 on 23rd
Mean screen 5.1 (0.7)
Mean 30cm earth 4.3 (0.2)
Air frost 14 (0)
Days snow lying 50% 09Z, 0 (-6) snow on ground 0
Max depth 09Z 0cm on 0th
River Gaunless data (Copley Lead Mill Environment Agency monitoring site 09Z daily readings)
Mean level 0.12m high 0.21m on 23rd low 0.10m on 21st ((normal 0.00m to 0.60m)
Mean river temperature 09Z 5.8, high 8.0 on 25th, low 3.8 on 19th
Copley Met O site 253metres asl
Temperature °C (09Z-09Z)
Mean maximum 10.1 (2.0) High 15.1 on 6th, Low 5.1 on 13th
Mean minimum 1.8 (0.6) Low -5.9 on 19th, High 6.3 on 27th
Mean screen 5.9 (1.2)
Mean grass minimum -3.3 (-1.5) Low -14.3 on 19th
Mean concrete minimum 0.7 (0.0) Low -5.5 on 19th
Mean 30cm earth 6.2 (1.0)
Mean 100cm earth 6.1 (0.7)
Air frost 8 (-3) 38.7 hours
Ground frost 24 (3)
Concrete frost 15 (2)
Precipitation mm (09Z-09Z)
Total 25.3 (42%) High 15.5 on 22nd
Days 0.2mm 9 (-7)
Days 1.0mm 6 (-5)
Hail 1 (-2)
Thunder 0 (0)
Snow cm
Days falling 7 (-2)
Days lying 50% 09Z, 1 (-4) snow on ground 3
Fresh falls 09Z 1cm (-12cm)
Max depth 09Z 1cm on 13th
Sunshine hr (R&D electronic recorder) Sunshine hr (Campbell Stokes)
Total 153.0(116%) 64.7 (73%)
Max day 11.7 on 30th 9.8 on 28th
Average daily 4.9 (42% of the possible 11.8hr / day) 2.3 (24% possible)
Days no sun 1 (-4) 12 (6)
Fog (Vis <1km 09Z), 3 (0)
Pressure mb (mean sea level)
Average 09Z 1017.3 (4.4)
High 1035.0 on 1st
Low 1000.4 on 22nd
Wind KT (Davis recorder)
Mean SW 7.1 (-1.9) High gust 50 on 5th
Gale days 1 (0)
Ken Cook, Copley, Teesdale / Weardale watershed
Ken Cook
Corrected sunshine figures
Sunshine hr (R&D electronic recorder) Sunshine hr (Campbell Stokes)
Total 153.0(116%) 147.4 (117%)
Max day 11.7 on 30th 11.0 on 30th
Average daily 4.9 (42% of the possible 11.8hr / day) 4.8 (40% possible)
Days no sun 1 (-4) 2 (-3)
Fog (Vis <1km 09Z), 3 (0)
Ken