Ken Cook
Reports for April 2026 for the Copley sites. (Averages refer to 1991-2020)
Dry and sunny, warm by day.
(Differences from 1991-2020 averages in
brackets)
Copley Lead Mill site 219metres asl
Temperature °C (09Z-09Z)
Mean maximum 12.8 (1.0) High 19.3 on 8th, Low 8.7 on 5th
Mean minimum 1.9 (-0.4) Low -2.6 on 24th, High 8.9 on 16th
Mean screen 7.3 (0.3)
Mean 30cm earth 8.1 (1.0)
Air frost 9 (0)
Days snow lying 50% 09Z, 0 (-1) 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 0.14m on 16th, low 0.10m on 25th ((normal 0.00m to 0.60m)
Mean river temperature 09Z 8.0, high 10.0on 9th, low 6.1 on 6th
Copley Met O site 257metres asl
Temperature °C (09Z-09Z)
Mean maximum 12.8 (1.6) High 20.2 on 8th, Low 8.0 on 5th
Mean minimum 2.9 (0.1) Low -1.9 on 24th, High 9.0 on 9th
Mean screen 7.9 (0.9)
Mean grass minimum -1.7 (-0.8) Low -11.5 on 24th
Mean concrete minimum 3.1 (0.6) Low -2.0 on 13th
Mean 30cm earth 8.9 (1.0)
Mean 100cm earth 8.1 (0.9)
Air frost 6 (0) 9.7 hours
Ground frost 19 (2)
Concrete frost 7 (0)
Precipitation mm (09Z-09Z)
Total 27.9 (49%) High 8.6 on 15th
Days 0.2mm 12 (-2)
Days 1.0mm 6 (-3)
Hail 0 (-3)
Thunder 0 (-1)
Snow cm
Days falling 3 (-2)
Days lying 50% 09Z, 0 (-1) snow on ground 0
Fresh falls 09Z 0cm (-3cm)
Max depth 09Z 0cm on 0th
Sunshine hr (R&D electronic recorder) Sunshine hr (Campbell Stokes)
Total 212.8(183%) 221.4(120%)
Max day 13.6 on 30th 13.4 on 30th
Average daily 7.1 (50% of the possible 14.1hr / day) 7.4 (52% possible)
Days no sun 0 (-3) 0 (-2)
Fog (Vis <1km 09Z), 1 (-1)
Pressure mb (mean sea level)
Average 09Z 1019.6 (5.8)
High 24hr 1034.5 on 23rd
Low 24hr 989.1 on 4th & 5th
Wind KT (Davis recorder)
Mean SSE 7.0 (-0.8) High gust 56 on 4th (Storm Dave)
Gale days 1 (1)
Ken Cook, Copley, Teesdale / Weardale watershed