Monthly Climate Summary for  April  2010  at Whipsnade (Lodge)

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Changeable early and late, but dry and sunny with warm days and cool nights from 8th-24th

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Overall mean temperature was

8.4

ºC

which is

+1.2

degC

compared with the 1971-2000 average

Mean day maximum (09-21) was

13.9

ºC

which is

+2.7

degC

compared with the 1971-2000 average

Mean night minimum (21-09) was

2.9

ºC

which is

-0.3

degC

compared with the 1971-2000 average

Mean 24hr maximum (09-09) was

13.9

ºC

Mean 24hr minimum (09-09) was

2.9

ºC

Highest day max was

20.6

ºC

on  the

28

Lowest day max was

7.8

ºC

on  the

1

Highest night min was

9.2

ºC

on  the

29

Lowest night min was

-2.4

ºC

on  the

21

Lowest grass min was

-5.3

ºC

on  the

21

Total rainfall this month was

20.9

mm

which is

38.0

per  cent

of the 1971-2000 average

Highest daily fall was

4.6

mm

on  the

29

Number of hours with rain was

Equiv. TSR rainfall duration was

12.3

hrs

which is

per  cent

of the 1971-2000 average

Highest no of wet hrs

hrs

on  the

Highest duration

2.8

hrs

on  the

2

Mean rainfall intensity

1.70

mm/hr

Total CS sunshine this month was

210.9

hrs

which is

151.8

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

12.9

hrs

on  the

23

Maximum  snow depth  was

0.0

cm

on  the

6

Mean sea-level pressure at 09Z

1020.3

mbar

which is

+5.1

mbar

compared with the 1961-1990 average

Highest pressure at 09Z

1034.8

mbar

on  the

10

Lowest  pressure at 09Z

1000.9

mbar

on  the

3

Number of days with:

Air Frost

7

0.2mm rain

8

No  sun

1

Snow lying

0

Grnd Frost

14

1.0mm

6

3h  sun

25

Snow/sleet

0

Max < 0ºC

0

5mm

0

6h  sun

17

Hail

1

Max > 10

26

10mm

0

9h  sun

11

Thunder

1

Max > 20

1

25mm

0

12h sun

3

Fog at 09Z

0

Max > 30

0

15h sun

0

Gale

0

Notable events during the month: