Monthly Climate Summary for January 2010  at Whipsnade (The Lodge)

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Very cold first half with frequent snowfalls;  less cold second half;  sunny early and late

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Overall mean temperature was

0.5

ºC

which is

-2.4

degC

compared with the 1971-2000 average

Mean day maximum (09-21) was

2.2

ºC

which is

-3.1

degC

compared with the 1971-2000 average

Mean night minimum (21-09) was

-1.2

ºC

which is

-1.6

degC

compared with the 1971-2000 average

Mean 24hr maximum (09-09) was

2.4

ºC

Mean 24hr minimum (09-09) was

-1.6

ºC

Highest day max was

7.8

ºC

on  the

18

Lowest day max was

-3.4

ºC

on  the

4

Highest night min was

4.7

ºC

on  the

19

Lowest night min was

-8.4

ºC

on  the

7

Lowest grass min was

-12.6

ºC

on  the

7

Total rainfall this month was

53.4

mm

which is

79.7

per  cent

of the 1971-2000 average

Highest daily fall was

10.2

mm

on  the

22

Number of hours with rain was

TSR rainfall duration was

81.0

hrs

which is

per  cent

of the 1971-2000 average

Highest no of wet hrs

hrs

on  the

Highest duration

15.0

hrs

on  the

22

Mean rainfall intensity

0.66

mm/hr

Total CS sunshine this month was

49.6

hrs

which is

94.3

per  cent

of the 1971-2000 average

Equiv. C/S sunshine total was

hrs

which is

per  cent

of the 1971-2000 average

Highest daily sun was

7.3

hrs

on  the

30

Maximum  snow depth  was

12.0

cm

on  the

5

Mean sea-level pressure at 09Z

1015.7

mbar

which is

+1.1

mbar

compared with the 1961-1990 average

Highest pressure at 09Z

1040.8

mbar

on  the

26

Lowest  pressure at 09Z

1001.0

mbar

on  the

13

Number of days with:

Air Frost

19

0.2mm rain

16

No  sun

14

Snow lying

15

Grnd Frost

24

1.0mm

11

3h  sun

6

Snow/sleet

13

Max < 0ºC

6

5mm

4

6h  sun

3

Hail

1

Max > 10

0

10mm

1

9h  sun

0

Thunder

0

Max > 20

0

25mm

0

12h sun

0

Fog at 09Z

6

Max > 30

0

15h sun

0

Gale

0

Notable events during the month: