Monthly Climate Summary for  April  2007  at Whipsnade (Lodge)

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Exceptionally warm, sunny and dry

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Overall mean temperature was

10.5

ºC

which is

+3.3

degC

compared with the 1971-2000 average

Mean day maximum (09-21) was

16.4

ºC

which is

+5.2

degC

compared with the 1971-2000 average

Mean night minimum (21-09) was

4.6

ºC

which is

+1.4

degC

compared with the 1971-2000 average

Mean 24hr maximum (09-09) was

16.4

ºC

Mean 24hr minimum (09-09) was

4.6

ºC

Highest day max was

22.0

ºC

on  the

15

Lowest day max was

7.9

ºC

on  the

3

Highest night min was

12.0

ºC

on  the

25

Lowest night min was

-0.5

ºC

on  the

7

Lowest grass min was

-2.7

ºC

on  the

5

Total rainfall this month was

0.7

mm

which is

1.3

per  cent

of the 1971-2000 average

Highest daily fall was

0.4

mm

on  the

23

Number of hours with rain was

Equiv. TSR rainfall duration was

2.8

hrs

which is

per  cent

of the 1971-2000 average

Highest no of wet hrs

hrs

on  the

Highest duration

1.3

hrs

on  the

24

Mean rainfall intensity

0.25

mm/hr

Total CS sunshine this month was

227.8

hrs

which is

164.0

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

13.4

hrs

on  the

30

Maximum  snow depth  was

0.0

cm

on  the

22

Mean sea-level pressure at 09Z

1023.7

mbar

which is

+8.5

mbar

compared with the 1961-1990 average

Highest pressure at 09Z

1030.1

mbar

on  the

2

Lowest  pressure at 09Z

1013.3

mbar

on  the

25

Number of days with:

Air Frost

2

0.2mm rain

2

No  sun

0

Snow lying

0

Grnd Frost

8

1.0mm

0

3h  sun

27

Snow/sleet

0

Max < 0ºC

0

5mm

0

6h  sun

20

Hail

0

Max > 10

28

10mm

0

9h  sun

12

Thunder

0

Max > 20

3

25mm

0

12h sun

3

Fog at 09Z

3

Max > 30

0

15h sun

0

Gale

0

Notable events during the month: