Monthly Climate Summary for January 2011  at Whipsnade (The Lodge)

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Dull and rather wet; very mild spell 11th-16th otherwise mostly rather cold

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Overall mean temperature was

3.2

ºC

which is

0.3

degC

compared with the 1971-2000 average

Mean day maximum (09-21) was

5.1

ºC

which is

-0.2

degC

compared with the 1971-2000 average

Mean night minimum (21-09) was

1.2

ºC

which is

0.8

degC

compared with the 1971-2000 average

Mean 24hr maximum (09-09) was

5.3

ºC

Mean 24hr minimum (09-09) was

0.7

ºC

Highest day max was

11.3

ºC

on  the

13

Lowest day max was

-0.1

ºC

on  the

29

Highest night min was

10.5

ºC

on  the

13

Lowest night min was

-5.6

ºC

on  the

31

Lowest grass min was

-10.1

ºC

on  the

31

Total rainfall this month was

85.4

mm

which is

127.5

per  cent

of the 1971-2000 average

Highest daily fall was

17.9

mm

on  the

17

Number of hours with rain was

TSR rainfall duration was

108.7

hrs

which is

per  cent

of the 1971-2000 average

Highest no of wet hrs

hrs

on  the

Highest duration

14.9

hrs

on  the

12

Mean rainfall intensity

0.79

mm/hr

Total CS sunshine this month was

34.7

hrs

which is

66.0

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

31

Maximum  snow depth  was

0.25

cm

on  the

3

Mean sea-level pressure at 09Z

1018.7

mbar

which is

+4.1

mbar

compared with the 1961-1990 average

Highest pressure at 09Z

1040.1

mbar

on  the

21

Lowest  pressure at 09Z

991.6

mbar

on  the

8

Number of days with:

Air Frost

15

0.2mm rain

20

No  sun

18

Snow lying

1

Grnd Frost

18

1.0mm

14

3h  sun

4

Snow/sleet

7

Max < 0ºC

1

5mm

7

6h  sun

2

Hail

1

Max > 10

5

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: