On Friday, January 15, 2016 at 10:01:36 AM UTC, Graham Easterling wrote:
Last 5 days (10th-14th) in Penzance

Max Min
9.6 5.3
9.2 4.4
8.6 6.2
10.0 1.8
9.2 2.0

Mean 6.6C, just below normal (The notable thing is that 6 of the last 7 days have recorded hail)

In January 2010 (5th - 10th)
Max Min
4.7 -3.8
4.4 0.1
4.6 -2.4
4.8 -4.1
3.5 -2.5
1.8 -0.5
Mean 1.0C

Still no air frost this winter, and it now looks unlikely during this spell.

January 2010 saw 14 air frosts and 5 days with a snow cover at 09:00, even down in Penzance.

Have we forgotten what a cold spell can be like?

Graham
Penzance

No air frost last night, despite clear skies and a light offshore wind.

Yesterday's max was 8.4C, the coldest of the winter so far. I suspect it will be slightly higher today and fall little tonight, so this marks the 'cold point' of the spell.

OK I'm in Penzance but since 1992 I have recorded 523 lower maximums (maxima?) To put it another way over the last 24 years 1 day in 27 has been colder!
January 1997 saw 6 days fail to reach 2C.

Variances from the norm, across England & Wales are typically +1C so far this month. http://www.met.reading.ac.uk/~brugge/anomt.jpg (Daily Express take note).

Graham
Penzance