Monthly Climate Summary for February 2007 at Hampstead

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Cold snap 4th-9th, otherwise very wet and generally mild

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Overall mean temperature was

6.5

ºC

which is

+2.2

degC

compared with the 1971-2000 average

Mean day maximum (09-21) was

9.2

ºC

Mean night minimum (21-09) was

4.2

ºC

Mean 24hr maximum (09-09) was

9.3

ºC

which is

+2.1

degC

compared with the 1971-2000 average

Mean 24hr minimum (09-09) was

3.8

ºC

which is

+2.3

degC

compared with the 1971-2000 average

Highest day max was

14.1

ºC

on  the

1

Lowest day max was

2.1

ºC

on  the

8

Highest night min was

7.9

ºC

on  the

20

Lowest night min was

-3.7

ºC

on  the

7

Lowest grass min was

-7.0

ºC

on  the

7

Total rainfall this month was

103.0

mm

which is

257.4

per  cent

of the 1971-2000 average

Highest daily fall was

18.0

mm

on  the

13

Number of hours with rain was

130.0

hrs

Equiv. TSR rainfall duration was

91.0

hrs

which is

193.6

per  cent

of the 1971-2000 average

Highest no of wet hrs

15.0

hrs

on  the

9

Highest equiv duration

12.5

hrs

on  the

9

Mean rainfall intensity

1.13

mm/h

Total sunshine this month was

76.8

hrs

which is

125.5

per  cent

of the 1971-2000 average

Equiv. C/S sunshine total was

84.5

hrs

which is

125.5

per  cent

of the 1971-2000 average

Highest daily sun was

7.7

hrs

on  the

7

Maximum  snow depth  was

8.0

cm

on the

8

Mean sea-level pressure at 09Z

1008.1

mbar

which is

-7.3

mbar

compared with the 1961-1990 average

Highest pressure at 09Z

1040.7

mbar

on  the

3

Lowest  pressure at 09Z

981.7

mbar

on  the

12

Number of days with:

Air Frost

5

0.2mm rain

19

No  sun

4

Snow lying

2

Grnd Frost

10

1.0mm

14

3h  sun

12

Snow/sleet

1

Max < 0ºC

0

5mm

11

6h  sun

3

Hail

0

Max > 10

14

10mm

2

9h  sun

0

Thunder

0

Max > 20

0

25mm

0

12h sun

0

Fog at 09Z

2

Max > 30

0

15h sun

0

Gale

0

Notable events during the month: