Ken Cook
Reports for August 2025 for the Copley sites. (Averages refer to 1991-2020)
Dry, warm and sunny.
(Differences from 1991-2020 averages in brackets)
Copley Lead Mill site 218metres asl
Temperature °C (09Z-09Z)
Mean maximum 19.8 (1.4) High 29.3 on 13th, Low 14.3 on 20th
Mean minimum 9.7 (0.2) Low 6.1 on 10th, High 13.7 on 14th
Mean screen 14.7 (0.8)
Mean 30cm earth 16.4 (0.8)
Air frost 0 (0)
Days snow lying 50% 09Z, 0 (0) 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 0.07m, high 0.08m on 5th, low 0.07m on 1st ((normal 0.00m to 0.60m)
Mean river temperature 09Z 10.9, high 12.6 on 4th, low 10.0 on 28th
Copley Met O site 253metres asl
Temperature °C (09Z-09Z)
Mean maximum 20.2 (1.7) High 29.6 on 13th, Low 14.2 on 20th
Mean minimum 10.8 (0.6) Low 6.7 on 10th, High 14.9 on 14th
Mean screen 15.5 (1.2)
Mean grass minimum 6.8 (-0.1) Low -0.4 on 10th
Mean concrete minimum 11.2 (0.8) Low 6.7 on 10th
Mean 30cm earth 16.8 (0.9)
Mean 100cm earth 15.7 (0.9)
Air frost 0 (0) 0 hours
Ground frost 1 (0)
Concrete frost 0 (0)
Precipitation mm (09Z-09Z)
Total 23.3 (28%) High 6.8 on 3rd
Days 0.2mm 14 (-2)
Days 1.0mm 5 (-6)
Hail 0 (0)
Thunder 0 (-1)
Snow cm
Days falling 0 (0)
Days lying 50% 09Z, 0 (0) snow on ground 0
Fresh falls 09Z 0cm (0cm)
Max depth 09Z 0cm on 0th
Sunshine hr (R&D electronic recorder) Sunshine hr (Campbell Stokes)
Total 173.5(118%) 190.5 (111%)
Max day 13.3 on 17th 13.1 on 17th
Average daily 5.6 (37% of the possible 15.0hr / day) 6.1 (41% possible)
Days no sun 0 (-2) 0 (-3)
Fog (Vis <1km 09Z), 1 (0)
Pressure mb (mean sea level)
Average 09Z 1014.7 (0.2)
High 24hr 1030.4 on 16th
Low 24hr 992.5 on 30th
Wind KT (Davis recorder)
Mean SW 6.6 (-1.2) High gust 46 on 4th
Gale days 0 (0)
Ken Cook, Copley, Teesdale / Weardale watershed