While the absolute maximun of 20.3C in Trawscoed was impressive in that it broke the February and winter all time record and earliest 20C record one other thing I'm wondering is the dirunal variation record.
The variation in Trawscoed stands at 20.6C given a minimun of -0.3C was recorded this morning. I wonder how close this is to the record? The only situation, I can think of, where a higher extreme might be reached would be an extreme nightime low of, say, -25C followed by a warm front and then something like a 10C high. But has that ever happened?
So my question is. What is the dirunal variation record? What is the record for February? Also out of curiousity what is the lowest variation recorded? 0.0C?
Also one final point to chew over. At several points today the warmest place (usually Trawscoed) was less than 100km away from the coldest place (also in Wales).
Twitter: @QuantumOverlord (general), @MedicaneWatch (medicane/TC stuff)
2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)
Total: 8 days with snow/sleet falling.
2022/2023 Snow days (approx 850hpa temp):
18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)
Total: 7 days with snow/sleet falling.
2021/2022 Snow days (approx 850hpa temp):
26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.