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  Home - Climate - 30 Year Averages - Valentia

 

30 Year Averages


Please choose a 30 year average report from any station by clicking on the map or one of the links below:

VALENTIA OBSERVATORY

monthly and annual mean and extreme values

1961-1990

TEMPERATURE (degrees Celsius)

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

year

mean daily max.

9.3

9.3

10.5

12.2

14.3

16.4

17.9

18.0

16.6

14.3

11.4

10.1

13.4

mean daily min.

4.2

3.9

4.6

5.5

7.5

10.1

11.7

11.6

10.3

8.6

6.0

5.0

7.4

mean

6.8

6.6

7.6

8.9

10.9

13.3

14.8

14.8

13.5

11.5

8.7

7.6

10.4

absolute max.

13.6

15.1

20.3

24.0

26.9

25.7

29.7

28.4

25.9

22.5

19.8

15.3

29.7

absolute min.

-5.9

-7.3

-5.1

-1.6

0.5

2.8

5.3

3.3

2.8

-1.4

-4.0

-5.3

-7.3

mean no. of days with air frost

3.4

3.3

2.2

0.6

0.0

0.0

0.0

0.0

0.0

0.1

1.3

3.0

13.9

mean no. of days with ground frost

7.5

7.1

6.1

4.3

1.1

0.1

0.0

0.0

0.2

1.1

4.5

6.8

38.7

RELATIVE HUMIDITY (%)

mean at 0900UTC

84

83

83

79

78

81

84

85

85

86

84

85

83

mean at 1500UTC

80

77

75

73

73

77

79

79

78

80

79

81

78

SUNSHINE (hours)

mean daily duration

1.41

2.16

3.05

5.00

5.81

5.12

4.53

4.50

3.61

2.53

1.72

1.17

3.39

greatest daily duration

7.5

9.0

11.1

13.5

15.1

15.8

15.6

14.4

12.1

9.6

8.1

6.4

15.8

mean no. of days with no sun

11

7

6

3

2

4

4

4

4

7

9

13

75

RAINFALL (mm)

mean monthly total

167

123.1

121.7

77

88.5

79.9

73.3

111.2

124.9

157.3

147.1

159.3

1430.3

greatest daily total

45.6

46.2

37.1

52.7

37.5

58.3

32.4

85.6

55.6

64.6

86.6

62.0

86.6

mean no. of days with >= 0.2mm

23

19

21

17

18

17

17

19

19

22

22

24

239

mean no. of days with >= 1.0mm

20

16

16

12

14

13

12

15

15

19

18

19

187

mean no. of days with >= 5.0mm

11

8

8

5

7

5

5

7

8

11

10

10

95

WIND (knots)

mean monthly speed

13.1

12.6

12.1

10.1

10.3

9.1

8.5

8.9

10.0

11.4

11.8

12.6

10.9

max. gust

87

79

67

63

61

58

53

60

88

75

70

82

88

max. mean 10-minute speed

54

49

40

38

39

40

31

36

58

49

45

47

58

mean no. of days with gales

2.5

2.0

1.3

0.3

0.4

0.0

0.0

0.1

0.5

0.8

1.5

1.8

11.2

WEATHER (mean no. of days with...)

snow or sleet

1.5

1.7

1.1

0.3

0.1

0.0

0.0

0.0

0.0

0.0

0.1

0.8

5.6

snow lying at 0900UTC

0.2

0.4

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.1

0.8

hail

5.1

4.2

4.6

2.5

1.1

0.1

0.0

0.1

0.3

0.9

2.9

3.6

25.5

thunder

1.2

0.8

0.6

0.2

0.3

0.3

0.6

0.4

0.5

0.7

0.8

0.7

7.1

fog

0.4

0.4

0.2

0.9

0.9

1.2

1.5

1.2

0.7

0.6

0.4

0.4

8.9

 

 
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