Sadly I didn't, but I'm guessing values well below -20C could have occurred, would have been interesting to see what the snow surface temperature was at Topcliffe, North Yorkshire when it recorded -19c
Originally Posted by: Jiries
When it was -13.3C before 3am, it was -21.2C. Then on 3rd Feb 2009 after getting a foot of powdery snow on 2nd, the clouds refused to clear off as forecasted and only cleared just before dawn, the air temps was -8.5C and the snow surface temps recorded -18.2C so that 9.7C colder that time. It so disappointing that I never had a chance to record full clear night under the fresh snow cover since 1991. Was -12C that time but the snow cover was less and not fresh on the last day of the truly best cold spelll.
Now if you said -19C until dawn, I would had work out around -27C to -28C or even -30C? During frosty weather I get around 3-4C colder on the grass temps than air temps.
Now as we are exiting ths terrible summer here I am wondering when we will ever get a first wall to wall sunshine being recorded here since May here. Will September deliver it?
Originally Posted by: LeedsLad123