FAIR ISLE MONTHLY DATA FOR 1998

Year=

1998

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

TOTAL

MEAN

MAX

MONTH

MIN

MONTH

TEMPERATURE (°C)

Tnmx

Mean

6.6

7.8

6.3

6.1

9.4

10.5

11.6

11.7

12.1

9.2

7.5

7.2

8.8

12.1

SEPTEMBER

6.1

APRIL

21-09 UTC

Maximum

10.6

9.9

9.6

8.9

11.3

14.5

13.0

13.4

15.4

12.3

10.1

11.3

11.7

15.4

SEPTEMBER

8.9

APRIL

Minimum

1.1

2.8

-0.7

0.0

7.6

8.0

9.7

9.3

9.8

6.2

4.1

2.0

5.0

9.8

SEPTEMBER

-0.7

MARCH

Tdmx

Mean

6.8

7.7

7.0

7.3

10.5

11.2

12.5

12.6

12.8

9.5

7.7

7.2

9.4

12.8

SEPTEMBER

6.8

JANUARY

09-21GMT

Maximum

11.1

10.1

10.8

10.3

12.7

15.2

14.2

14.8

18.0

13.0

11.0

11.1

12.7

18.0

SEPTEMBER

10.1

FEBRUARY

Minimum

2.0

0.5

2.0

4.0

8.6

7.4

10.4

10.9

10.7

5.5

3.5

1.6

5.6

10.9

AUGUST

0.5

FEBRUARY

Date highest

21-21 UTC max

11

18

28

30

15

20

18

14

21

9

9

1

Date lowest

09-21 UTC max

18

2

5

13

7

10

7

26

13

17

6

4

Tnmn

Mean

4.1

4.7

3.7

3.8

6.7

7.2

9.7

9.7

10.1

6.6

4.8

4.4

6.3

10.1

SEPTEMBER

3.7

MARCH

21-09GMT

Maximum

8.0

8.8

7.8

7.6

8.7

10.4

11.7

11.3

12.0

10.2

8.9

9.3

9.6

12.0

SEPTEMBER

7.6

APRIL

Minimum

-1.9

-3.3

-4.0

-1.2

4.0

3.4

7.4

6.5

3.7

1.7

0.6

-2.2

1.2

7.4

JULY

-4.0

MARCH

Tdmn

Mean

4.3

5.2

4.2

4.5

7.5

8.5

10.1

10.1

10.6

6.7

5.3

4.6

6.8

10.6

SEPTEMBER

4.2

MARCH

09-21GMT

Maximum

9.0

8.9

8.1

7.5

9.8

11.2

11.5

11.7

12.1

10.2

9.3

8.8

9.8

12.1

SEPTEMBER

7.5

APRIL

Minimum

-2.2

-5.6

-3.0

-0.6

5.3

4.7

7.0

6.7

5.6

2.7

0.6

-3.3

1.5

7.0

JULY

-5.6

FEBRUARY

Date highest

21-09 UTC min

10

24

15

23

14

24

29

3

8

2

9

1

Date lowest

21-21 UTC min

18

2

1

12

3

14

7

26

12

16

5

4

Tme24

Mean

5.5

6.3

5.3

5.3

8.5

9.4

11.0

11.1

11.4

8.0

6.3

5.9

7.8

11.4

SEPTEMBER

5.3

APRIL

Maximum

9.4

9.2

9.1

8.1

10.2

12.3

12.3

12.5

13.9

11.3

9.5

10.1

10.6

13.9

SEPTEMBER

8.1

APRIL

Minimum

-0.1

-1.0

-1.2

0.0

6.9

6.5

8.6

8.6

8.7

4.8

2.4

0.1

3.7

8.7

SEPTEMBER

-1.2

MARCH

Tgrass

Mean

2.4

3.4

2.4

2.4

5.3

5.8

8.9

8.7

8.7

4.6

2.8

2.5

4.8

8.9

JULY

2.4

JANUARY

Sunset-09GMT

Maximum

7.0

8.0

7.2

6.8

8.3

10.5

11.9

11.1

11.6

9.4

7.7

7.5

8.9

11.9

JULY

6.8

APRIL

Minimum

-3.6

-3.7

-4.9

-2.9

1.5

-0.4

4.4

2.7

-1.2

-2.3

-1.3

-6.0

-1.5

4.4

JULY

-6.0

DECEMBER

Date lowest

read at 0900 UTC

29

3

1

18

9

14

8

9

12

16

5

21

T30

Mean

5.5

5.8

5.3

6.4

9.7

10.9

12.3

12.4

11.8

9.2

6.5

6.0

8.5

12.4

AUGUST

5.3

MARCH

Maximum

6.7

7.2

7.3

8.6

10.7

12.5

13.2

13.0

12.4

11.4

7.3

7.2

9.8

13.2

JULY

6.7

JANUARY

Minimum

4.2

3.9

3.6

4.8

8.4

9.3

11.3

11.6

11.3

7.4

5.4

5.0

7.2

11.6

AUGUST

3.6

MARCH

T100

Mean

6.5

6.1

5.8

6.5

8.6

9.9

11.2

11.7

11.4

9.9

7.5

6.7

8.5

11.7

AUGUST

5.8

MARCH

Maximum

7.0

6.8

6.6

7.6

9.4

10.8

11.8

11.9

11.6

11.2

8.4

7.3

9.2

11.9

AUGUST

6.6

MARCH

Minimum

5.8

5.4

4.5

5.8

7.4

9.4

10.8

11.3

11.2

8.6

6.9

6.0

7.8

11.3

AUGUST

4.5

MARCH

Tsea

Mean

9.0

8.2

8.3

8.2

9.3

10.3

11.4

12.4

12.3

11.1

9.8

9.1

9.9

12.4

AUGUST

8.2

FEBRUARY

Maximum

9.7

8.6

8.7

9.2

9.9

11.6

12.1

12.8

12.7

12.6

10.4

9.3

10.6

12.8

AUGUST

8.6

FEBRUARY

Minimum

8.0

7.9

7.8

7.7

8.7

8.9

10.4

11.8

12.0

10.1

8.9

8.8

9.2

12.0

SEPTEMBER

7.7

APRIL

Date highest

Sea Temp

2

14

17

28

24

30

30

13

25

1

1

24

Date lowest

Sea Temp

24

24

26

26

10

2

7

2

3

31

30

1

RAINFALL (mm)

RRtot

Total

97.0

139.5

91.5

45.5

19.8

84.3

88.3

75.8

53.6

149.4

143.6

111.4

1099.6

149.4

OCTOBER

19.8

MAY

09-09 UTC

Mean

3.3

5.0

3.3

2.0

1.0

3.4

2.8

2.6

2.1

5.2

5.0

3.8

3.3

5.2

OCTOBER

1.0

MAY

Maximum

10.5

17.2

15.0

14.8

4.4

27.5

22.4

18.6

18.9

31.7

22.2

12.4

18.0

31.7

OCTOBER

4.4

MAY

Date wettest

day 09-09 UTC

22

15

2

23

7

9

17

3

27

24

6

26

SUNSHINE (hours)

Suntot

Total

34.3

32.6

83.6

186.0

209.0

223.7

97.0

107.6

81.1

72.3

53.5

21.4

1202.1

223.7

JUNE

21.4

DECEMBER

Mean

1.1

1.2

2.7

6.2

6.7

7.5

3.1

3.5

2.7

2.3

1.8

0.7

3.3

7.5

JUNE

0.7

DECEMBER

Maximum

4.6

6.1

7.3

13.6

13.2

16.5

13.5

11.2

10.8

7.0

5.0

3.5

9.4

16.5

JUNE

3.5

DECEMBER

Date sunniest

day

8

21

6

18

11

14

15

25

21

12

2

11

SNOWDEPTH (cm)

At 0900 UTC

Mean

2.2

0.3

2.0

0.3

0.0

2.7

2.7

DECEMBER

0.0

MAY

Maximum

5

1

5

1

0

5

5.0

JANUARY

0.0

MAY

::

PRESSURE (mb)

PPP00

Mean

1006.1

1006.7

1013.1

1005.4

1018.1

1010.9

1006.8

1012.0

1009.0

1003.1

1009.6

1005.0

1008.8

1018.1

MAY

1003.1

OCTOBER

Maximum

1043.7

1028.7

1035.3

1019.0

1029.7

1021.7

1022.5

1023.4

1031.7

1031.7

1030.4

1033.3

1029.3

1043.7

JANUARY

1019.0

APRIL

Minimum

960.1

987.2

984.3

992.2

993.2

986.4

994.3

991.9

981.1

967.5

992.8

954.5

982.1

994.3

JULY

954.5

DECEMBER

PPP06

Mean

1005.9

1006.2

1012.8

1004.9

1017.8

1010.2

1006.1

1011.4

1008.3

1002.2

1008.9

1005.0

1008.3

1017.8

MAY

1002.2

OCTOBER

Maximum

1043.0

1027.7

1035.7

1021.5

1029.1

1021.5

1021.7

1022.7

1031.5

1030.6

1029.4

1030.9

1028.8

1043.0

JANUARY

1021.5

APRIL

Minimum

968.3

983.2

980.8

991.9

991.0

985.3

992.0

991.2

982.5

967.7

987.6

962.2

982.0

992.0

JULY

962.2

DECEMBER

PPP09

Mean

1006.4

1006.8

1012.9

1005.3

1018.2

1010.5

1006.3

1011.7

1008.8

1002.8

1009.3

1005.8

1008.7

1018.2

MAY

1002.8

OCTOBER

Maximum

1044.2

1026.3

1035.8

1023.1

1029.1

1022.3

1022.3

1022.9

1031.8

1030.9

1029.8

1030.9

1029.1

1044.2

JANUARY

1022.3

JUNE

Minimum

964.1

982.6

980.7

992.4

990.9

986.6

991.8

992.5

986.6

969.3

981.7

969.1

982.4

992.5

AUGUST

964.1

JANUARY

PPP12

Mean

1006.6

1007.0

1012.9

1005.4

1018.3

1010.8

1006.6

1012.0

1009.1

1003.4

1009.6

1006.0

1009.0

1018.3

MAY

1003.4

OCTOBER

Maximum

1044.4

1025.0

1036.3

1024.2

1029.3

1021.6

1021.9

1023.3

1032.0

1031.4

1029.2

1032.4

1029.3

1044.4

JANUARY

1021.6

JUNE

Minimum

957.9

983.8

982.3

991.7

991.0

988.8

992.3

994.2

986.0

971.4

978.5

977.2

982.9

994.2

AUGUST

957.9

JANUARY

PPP15

Mean

1006.4

1006.7

1012.7

1005.3

1018.1

1011.0

1006.7

1012.0

1009.0

1003.1

1009.7

1005.5

1008.9

1018.1

MAY

1003.1

OCTOBER

Maximum

1044.3

1025.5

1036.0

1024.6

1029.0

1021.1

1021.2

1023.6

1031.6

1031.7

1029.2

1032.6

1029.2

1044.3

JANUARY

1021.1

JUNE

Minimum

955.3

984.5

981.8

991.5

991.7

992.3

992.8

992.9

985.4

972.9

981.4

979.3

983.5

992.9

AUGUST

955.3

JANUARY

PPP18

Mean

1006.5

1006.8

1013.0

1005.4

1017.8

1010.9

1006.8

1012.0

1009.0

1003.1

1010.3

1005.2

1008.9

1017.8

MAY

1003.1

OCTOBER

Maximum

1044.1

1026.9

1035.9

1025.4

1029.2

1020.8

1021.2

1023.5

1031.6

1032.0

1030.1

1032.8

1029.5

1044.1

JANUARY

1020.8

JUNE

Minimum

953.9

987.2

983.5

993.1

992.0

990.4

993.6

992.1

985.1

973.4

986.4

974.1

983.7

993.6

JULY

953.9

JANUARY

PPP21

Mean

1006.7

1006.7

1013.4

1005.9

1018.0

1011.1

1007.0

1012.1

1009.3

1002.9

1010.7

1004.5

1009.0

1018.0

MAY

1002.9

OCTOBER

Maximum

1043.6

1028.2

1035.8

1026.4

1029.5

1021.5

1022.3

1023.7

1032.2

1032.1

1030.3

1033.1

1029.9

1043.6

JANUARY

1021.5

JUNE

Minimum

957.3

988.3

983.9

993.3

993.7

987.6

995.3

992.1

984.7

968.2

990.9

959.5

982.9

995.3

JULY

957.3

JANUARY

PPPme24

Mean

1005.8

1006.7

1013.0

1005.4

1018.1

1010.8

1006.6

1011.9

1008.9

1003.0

1009.7

1005.3

1008.8

1018.1

MAY

1003.0

OCTOBER

Maximum

1043.9

1023.6

1035.8

1023.4

1028.9

1020.8

1021.4

1022.9

1031.7

1031.0

1029.2

1031.4

1028.7

1043.9

JANUARY

1020.8

JUNE

Minimum

962.2

985.8

984.5

992.7

991.9

990.4

993.2

994.9

986.4

971.7

986.7

971.9

984.4

994.9

AUGUST

962.2

JANUARY

Highest monthly

pressure

1044.4

1028.7

1036.3

1026.4

1029.7

1022.3

1022.5

1023.7

1032.2

1032.1

1030.4

1033.3

1030.2

1044.4

JANUARY

1022.3

JUNE

Date highest

pressure

24

25

21

30

17

5

2

27

21

6

17

2

Lowest monthly

pressure

953.9

982.6

980.7

991.5

990.9

985.3

991.8

991.2

981.1

967.5

978.5

954.5

979.1

991.8

JULY

953.9

JANUARY

Date lowest

pressure

3

27

4

15

6

10

13

21

16

25

9

27

CLOUD (okta)

Cloud amount

Mean 00-00 UTC

6.5

7.1

6.7

5.5

5.8

5.8

7.1

6.8

6.7

6.7

6.7

5.8

6.4

7.1

FEBRUARY

5.5

APRIL

Maximum

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

7.9

8.0

8.0

JANUARY

7.9

DECEMBER

Minimum

3.4

5.3

3.7

2.4

3.0

1.3

4.0

4.7

1.0

1.0

1.0

2.7

2.8

5.3

FEBRUARY

1.0

SEPTEMBER

RELATIVE HUMIDITY (%)

Relative

Mean 00-00 UTC

80.9

85.8

81.6

78.4

83.6

85.0

91.6

90.0

92.4

92.4

92.4

82.2

86.4

92.4

SEPTEMBER

78.4

APRIL

Humidity

Maximum

95.7

99.0

98.3

99.7

97.3

99.4

99.4

100.0

100.0

100.0

100.0

93.9

98.6

100.0

AUGUST

93.9

DECEMBER

Minimum

62.4

69.6

57.4

63.6

66.7

63.4

76.6

72.9

71.4

71.4

71.4

68.6

68.0

76.6

JULY

57.4

MARCH

::

DAYS WITH:

Number

Hail types 1-4

3

3

8

5

1

0

0

0

0

0

0

11

31

11

DECEMBER

0

JUNE

of Days

Hail types 5+

1

6

0

5

0

0

0

0

0

0

0

1

13

6

FEBRUARY

0

MARCH

Thunder

0

1

0

0

0

1

0

0

0

0

0

1

3

1

FEBRUARY

0

JANUARY

Fog at 0900 UTC

0

2

3

1

3

4

6

6

6

6

6

0

43

6

JULY

0

JANUARY

Fog in 24 hours

4

8

8

3

11

13

17

16

13

13

13

3

122

17

JULY

3

APRIL

Gale

7

7

7

2

0

1

0

0

0

0

0

9

33

9

DECEMBER

0

MAY

Snow/Sleet

7

8

11

11

0

0

0

0

0

0

0

11

48

11

MARCH

0

MAY

Snow lying

4

2

6

2

0

0

0

0

0

0

0

6

20

6

MARCH

0

MAY

Aurora

1

0

2

2

0

0

0

3

1

1

1

4

15

4

DECEMBER

0

FEBRUARY

Rain Days >0.1 mm

23

27

25

16

12

15

20

23

19

19

19

27

245

27

FEBRUARY

12

MAY

Wet Days >0.9 mm

20

24

16

10

8

9

15

12

11

11

11

26

173

26

DECEMBER

8

MAY

Air Frost

3

4

5

6

0

0

0

0

0

0

0

4

22

6

APRIL

0

MAY

Ground Frost

6

3

10

8

0

1

0

0

1

1

1

7

38

10

MARCH

0

MAY

NIL Sunshine

15

13

5

5

2

7

10

4

15

15

15

10

116

15

JANUARY

2

MAY

WIND DIRECTION

Wind

North

4

3

3

8

4

6

5

3

3

3

3

5

50

8

APRIL

3

FEBRUARY

Direction

North East

1

1

1

4

3

6

1

0

3

3

3

0

26

6

JUNE

0

AUGUST

at 0900 UTC

East

1

0

1

6

4

3

3

0

5

5

5

0

33

6

APRIL

0

FEBRUARY

South East

2

0

1

8

1

5

6

7

9

9

9

4

61

9

SEPTEMBER

0

FEBRUARY

South

9

4

7

3

2

2

1

3

4

4

4

6

49

9

JANUARY

1

JULY

South West

8

8

4

1

4

0

2

5

1

1

1

12

47

12

DECEMBER

0

JUNE

West

3

11

9

0

10

4

7

7

3

3

3

3

63

11

FEBRUARY

0

APRIL

North West

3

1

5

0

3

3

6

6

2

2

2

1

34

6

JULY

0

APRIL

Calm

0

0

0

0

0

1

0

0

0

0

0

0

1

1

JUNE

0

JANUARY

DAILY WIND SPEED (kt)

Wind Speed

Mean

16.9

19.8

16.6

15.3

11.4

11.3

11.7

11.9

12.1

12.1

12.1

20.4

14.3

20.4

DECEMBER

11.3

JUNE

Maximum

34.1

35.9

28.9

28.1

21.3

30.3

19.3

19.1

21.4

21.4

21.4

33.6

26.2

35.9

FEBRUARY

19.1

AUGUST

Minimum

3.1

10.0

5.7

5.9

4.1

1.9

3.3

2.9

4.1

4.1

4.1

4.0

4.4

10.0

FEBRUARY

1.9

JUNE

Gust 00-00 UTC

Mean

36.4

41.8

36.7

31.8

24.6

24.4

24.9

25.4

25.2

25.2

25.2

43.5

30.4

43.5

DECEMBER

24.4

JUNE

Maximum

65

67

59

63

40

52

38

41

43

43

43

63

51.4

67

FEBRUARY

38

JULY

Date highest

gust

1

26

26

3

10

10

18

15

2

2

2

14

 

 

Home ] Up ] January 1998 ] February 1998 ] March 1998 ] April 1998 ] May 1998 ] June 1998 ] July 1998 ] August 1998 ] September 1998 ] October 1998 ] November 1998 ] December 1998 ] Synopsis of Fair Isle's Weather in 1998 ] [ Monthly98 ]
Last edited on 17 January, 2000   Dave Wheeler weatherman@zetnet.co.uk
Web Space kindly provided by Zetnet Services Ltd, Lerwick, Shetland.