Monthly Climate Summary for  June  2007  at Hampstead

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Dry and rather  warm until the 12th, then dull with frequent rain

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Overall mean temperature was

16.2

ºC

which is

+1.1

degC

compared with the 1971-2000 average

Mean day maximum (09-21) was

20.5

ºC

Mean night minimum (21-09) was

11.9

ºC

Mean 24hr maximum (09-09) was

20.6

ºC

which is

+0.7

degC

compared with the 1971-2000 average

Mean 24hr minimum (09-09) was

11.9

ºC

which is

+1.5

degC

compared with the 1971-2000 average

Highest day max was

24.8

ºC

on  the

9

Lowest day max was

15.2

ºC

on  the

26

Highest night min was

14.7

ºC

on  the

11

Lowest night min was

7.8

ºC

on  the

27

Lowest grass min was

4.4

ºC

on  the

28

Total rainfall this month was

70.0

mm

which is

118.6

per  cent

of the 1971-2000 average

Highest daily fall was

16.9

mm

on  the

30

Number of hours with rain was

87.0

hrs

Equiv. TSR rainfall duration was

60.9

hrs

which is

184.5

per  cent

of the 1971-2000 average

Highest no of wet hrs

14.0

hrs

on  the

30

Highest equiv duration

11.6

hrs

on  the

30

Mean Rainfall Intensity

1.15

mm/h

Total sunshine this month was

140.1

hrs

which is

77.4

per  cent

of the 1971-2000 average

Equiv. C/S sunshine total was

154.1

hrs

which is

77.4

per  cent

of the 1971-2000 average

Highest daily sun was

11.3

hrs

on  the

10

Maximum  snow depth  was

0.0

cm

Mean sea-level pressure at 09Z

1013.2

mbar

which is

-3.7

mbar

compared with the 1961-1990 average

Highest pressure at 09Z

1026.7

mbar

on  the

2

Lowest  pressure at 09Z

998.5

mbar

on  the

25

Number of days with:

Air Frost

0

0.2mm rain

18

No  sun

0

Snow lying

0

Grnd Frost

0

1.0mm

13

3h  sun

22

Snow/sleet

0

Max < 0ºC

0

5mm

5

6h  sun

8

Hail

0

Max > 10

30

10mm

1

9h  sun

3

Thunder

2

Max > 20

18

25mm

0

12h sun

0

Fog at 09Z

0

Max > 30

0

15h sun

0

Gale

0

Notable events during the month: