Monthly Climate Summary for  April  2009  at Luton (Cranleigh Gardens)

home

daily

Mostly warm and dry;  a dull Easter otherwise long sunny periods

back

forward

Overall mean temperature was

10.5

ºC

which is

+2.2

degC

compared with the 1971-2000 average

Mean day maximum (09-21) was

15.6

ºC

which is

+3.0

degC

compared with the 1971-2000 average

Mean night minimum (21-09) was

5.4

ºC

which is

+1.5

degC

compared with the 1971-2000 average

Mean 24hr maximum (09-09) was

15.6

ºC

Mean 24hr minimum (09-09) was

5.4

ºC

Highest day max was

20.5

ºC

on  the

15

Lowest day max was

10.6

ºC

on  the

11

Highest night min was

9.9

ºC

on  the

16

Lowest night min was

0.5

ºC

on  the

5

Lowest grass min was

-4.3

ºC

on  the

5

Total rainfall this month was

41.7

mm

which is

72.1

per  cent

of the 1971-2000 average

Highest daily fall was

10.8

mm

on  the

16

Number of hours with rain was

Equiv. TSR rainfall duration was

41.3

hrs

which is

89.4

per  cent

of the 1971-2000 average

Highest no of wet hrs

hrs

on  the

Highest duration

10.5

hrs

on  the

26

Mean rainfall intensity

1.01

mm/hr

Total CS sunshine this month was

185.4

hrs

which is

133.5

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

26

Maximum  snow depth  was

0.0

cm

on  the

Mean sea-level pressure at 09Z

1013.3

mbar

which is

-1.9

mbar

compared with the 1961-1990 average

Highest pressure at 09Z

1028.1

mbar

on  the

20

Lowest  pressure at 09Z

994.6

mbar

on  the

27

Number of days with:

Air Frost

0

0.2mm rain

14

No  sun

4

Snow lying

0

Grnd Frost

10

1.0mm

10

3h  sun

23

Snow/sleet

0

Max < 0ºC

0

5mm

2

6h  sun

16

Hail

0

Max > 10

30

10mm

1

9h  sun

9

Thunder

1

Max > 20

2

25mm

0

12h sun

1

Fog at 09Z

3

Max > 30

0

15h sun

0

Gale

0

Notable events during the month: