Copley January 2023

[Ken Cook]

Reports for January 2023 for the Copley sites. (Averages refer to 1991-2020)

Sunny, wet first half, normal temperatures, light snowfalls

Copley Lead Mill site 218metres asl
Temperature °C (09Z-09Z)
Mean maximum 5.8 (+0.6) High 11.5 on 10th, Low -1.1 on 16th
Mean minimum 0.2 (+0.6) Low -6.9 on 22nd, High 5.0 on 5th
Mean screen 3.0 (+0.6)
Mean 30cm earth 3.4 (0.0)
Air frost 14 (-5)
Days snow lying 50% 09Z, 8 (-2) snow on ground 8
Max depth 09Z 3cm on 16th
River Gaunless data (Copley Lead Mill Environment Agency monitoring site 09Z daily readings)
Mean level 0.20m high 0.38m on 1st, low 0.13m on 26th (normal 0.00m to 0.60m)
Mean river temperature 4.4, high 6.9 on 7th, low 2.0 on 17th

Copley Met O site 253metres asl
Temperature °C (09Z-09Z)
Mean maximum 6.2 (+0.8) High 11.2 on 10th, Low -0.2 on 16th
Mean minimum 0.7 (+0.3) Low -5.8 on 22nd, High 5.5 on 5th
Mean screen 3.5 (+0.6)
Mean grass minimum -1.9 (+0.5) Low -11.8 on 22nd
Mean concrete minimum -0.3 (+0.2) Low -6.9 on 22nd
Mean 30cm earth 4.6 (+0.5)
Mean 100cm earth 5.8 (+0.5)
Air frost 13 (-2) 130 hours
Ground frost 19 (-5)
Concrete frost 13 (-6)

Precipitation mm (09Z-09Z)
Total 78.1 (108%) High 16.9 on 10th
Days 0.2mm 19 (-1)
Days 1.0mm 14 (0)
Hail 2 (0)
Thunder 0 (0)

Snow cm
Days falling 9 (-4)
Days lying 50% 09Z, 5 (-3) snow on ground 8
Fresh falls 09Z 3cm (-18cm)
Max depth 09Z 2cm on 16th

Sunshine hr (R&D electronic recorder) Sunshine hr (Campbell Stokes)
Total 104.7 (145%) 92.1 (129%)
Max day 7.5 on 21st 6.6 on 17th
Average daily 3.4 (43% of the possible 7.9hr / day) 3.0 (38% possible)
Days no sun 4 (-4) 4 (-5)

Fog (Vis <1km 09Z), 3 (-1)

Wind KT (Davis recorder)
Mean SW 12.1 (-0.4) High gust 48 on 12th
Gale days 4 (+2)
Ken Cook, Copley, Teesdale / Weardale watershed