Fair Isle Weather - August 1999

[Briefly].

[Detail]

Daily Data
Weather Diary

 

1999

Day

1974-98

1999

Day

1974-98

Mean Maximum Temperature

14.1

13.8

Highest Max temp

18.7

4

20.2

Mean Minimum Temperature

10.3

10.3

Lowest Min temp

7.6

10

4.4

Mean Sea Temperature

12.8

12.0

Lowest grass minimum

1.0

24

-3.7

30 cm Earth temperature

13.1

12.3

Days with ground frost

0

0.5

100cm Earth temperature

12.2

11.4

Days with air frost

0

0.0

Total Rainfall (mm)

51.8

61.4

Days with snow/sleet

0

0.0

Wettest Day (mm)

13.5

25

13.4

Days with snow cover at 09hr

0

0.0

Rain Days (> 0.1mm)

11

17.2

Days with hail

0

0.2

Wet Days (> 0.9mm)

8

11.5

Days with fog during 24hrs

8

12.0

Total sunshine, hrs

207.2

145.6

Days with fog at 09hrs

2

4.0

Sunniest day, hrs

15.3

4

13.1

Days with NIL sun

4

4.9

Mean wind speed, kts

10.6

11.5

Days with gale

0

0.6

Maximum gust, kts

38

29

45.6

Days with thunder

0

0.4

Mean Sea Level pressure

1013.7

1012.9

Days with aurora

3

1.0

Wind Direction (%)        North

19.4

11.2

Wind Direction (%)    S. West

6.5

13.3

at 09 hr                    N. East

19.4

5.0

at 09 hr                      West

12.9

17.4

East

6.5

9.3

N. West

6.5

9.7

S. East

16.1

13.9

South

12.9

17.7

CALM

0.0

2.2

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Last edited on 20 September, 1999   Dave Wheeler weatherman@zetnet.co.uk
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