Monthly Climate Summary for  June  2008  at Hampstead

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A fairly dry and bright month. Warm spell 8th-10th, then generally cool.

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Overall mean temperature was

15.4

ºC

which is

+0.3

degC

compared with the 1971-2000 average

Mean day maximum (09-21) was

19.8

ºC

Mean night minimum (21-09) was

11.2

ºC

Mean 24hr maximum (09-09) was

19.8

ºC

which is

-0.1

degC

compared with the 1971-2000 average

Mean 24hr minimum (09-09) was

11.1

ºC

which is

+0.7

degC

compared with the 1971-2000 average

Highest day max was

26.2

ºC

on  the

9

Lowest day max was

14.7

ºC

on  the

3

Highest night min was

16.3

ºC

on  the

22

Lowest night min was

7.6

ºC

on  the

16

Lowest grass min was

2.8

ºC

on  the

16

Total rainfall this month was

35.4

mm

which is

60.0

per  cent

of the 1971-2000 average

Highest daily fall was

10.3

mm

on  the

3

Number of hours with rain was

52.0

hrs

Equiv. TSR rainfall duration was

36.4

hrs

which is

110.3

per  cent

of the 1971-2000 average

Highest no of wet hrs

19.0

hrs

on  the

3

Highest equiv duration

15.8

hrs

on  the

3

Mean Rainfall Intensity

0.97

mm/h

Total sunshine this month was

188.1

hrs

which is

104.0

per  cent

of the 1971-2000 average

Equiv. C/S sunshine total was

206.9

hrs

which is

104.0

per  cent

of the 1971-2000 average

Highest daily sun was

11.3

hrs

on  the

5

Maximum  snow depth  was

0.0

cm

Mean sea-level pressure at 09Z

1017.9

mbar

which is

+1.0

mbar

compared with the 1961-1990 average

Highest pressure at 09Z

1027.0

mbar

on  the

9

Lowest  pressure at 09Z

1009.0

mbar

on  the

19

Number of days with:

Air Frost

0

0.2mm rain

9

No  sun

1

Snow lying

0

Grnd Frost

0

1.0mm

5

3h  sun

24

Snow/sleet

0

Max < 0ºC

0

5mm

3

6h  sun

18

Hail

0

Max > 10

30

10mm

2

9h  sun

7

Thunder

0

Max > 20

15

25mm

0

12h sun

0

Fog at 09Z

0

Max > 30

0

15h sun

0

Gale

0

Notable events during the month: