Penzance
Alt 19m Aspect SE

REMARKS
A cold month, just beating January 1997 as my coldest month on record
However, for the Winter so far, 96/97 was colder.

There were no particularly low temperatures, certainly no repeat of
January 2009's -6.1, but the number of air frosts were the greatest
for any month on record (Records start '92) . In fact there were more
air frosts than any YEAR apart from 1995 (20) & 2009 (14). There was
also an an exceptional period of snow cover on the fields immediately
behind Penzance. There is a detailed account of the snowfalls at
http://www.turnstone-cottage.co.uk/SnowJan2010.PDF

On 12th heavy rain and strong-gale SE winds introduced milder air and
maximum temperatures remained above normal until 22nd, with the
exception of 19th which saw a temporary return to easterly winds. The
generally S-SW winds brought some wet & windy weather, but with
reasonable amounts of sunshine inbetween. It was this milder period
which resulted in the temperature anomaly being lower than most parts
of the UK.

It was a sunny month, this and the associated overnight clear skies &
frequently light winds., meant the diurnal temperature range was
larger than normal. The average wind speed at 09:00 was the lowest on
record for January.

TEMPERATURE
Av. Maximum 8.1 (-1.0)
Av. Minimum 1.2 (-3.6)
Overall Average 4.6 (-2.3)
Air Frosts 14

Absolute Maximum 12.3 - 15th
Lowest Maximum 1.8 - 10th
Absolute Minmum -4.1 - 8th

RAIN / SNOW / HAIL
Total Rainfall 115.2mm (82%)
Wettest Day 21.4 (5th) - Almost all fell as snow/snow pellets -
giving 12cm just NW of Penzance.
Rain Days - 19
Wet Days - 16

Days with:-
Hail - 3
Snow Falling - 5
Ground Snow Covered at 09:00 - 5
Thunder - 0
Fog @ 09:00 - 1


WIND & PRESSURE
Number of Gales - 0 (though there was a Force 8 gale on the sea front)
Strongest Gust - 44mph

Graham
Penzance
Average Pressure @ 09:00 1015mb