Royston (Iceni) Weather Station

30 Year (1981/2010) Summer* Temperature, Rainfall and Pressure Means

* June, July & August

Year

       T e m p e r a t u r e (C)

  R a i n f a l l (MM)

     P r e s s u r e (m b)

     N o. o f D a y s W i t h

Year

Mean Maximum

Highest Maximum

Date

Lowest Maximum

Date

Mean Minimum

Highest Minimum

Date

Lowest Minimum

Date

Mean Grass Minimum

Lowest Grass Minimum

Date

Mean Earth 30cms 09hrs

Mean Earth 30cms 21hrs

No. of Air Frosts

No. of Ground Frosts

Total

No. of Days with 0.2mm or more

Most in a Day

Date

Mean MSL Air Pressure

Highest

Date

Lowest

Date

Fog (vis. <1000m @ 09 hrs)

Fog (vis. < 200m @ 09 hrs)

Snow or Rain and Snow

Snow Lying (> 50% cover @ 09 hrs)

Hail

Thunder

1981

20.3

27.7

05/08

11.6

24/07

11.6

17.0

05/08

5.8

28/06

10.8

2.8

28/06

18.3

18.6

0

0

122.8

22

21.2

09/07

1019

1032

12/06

1002

23/07

4

1

0

0

0

6

1981

1982

21.3

28.6

09/07

15.6

31/08

12.4

17.4

06/06

6.8

14/06

10.7

4.6

28/07

18.6

19.1

0

0

170.3

41

39.2

03/08

1017

1030

19/07

1004

22/06

2

1

0

0

1

20

1982

1983

23.1

31.5

15/07

16.5

15/06

12.6

20.0

15/07

6.1

19/06

10.6

2.2

30/08

19.2

19.8

0

0

59.5

21

11.1

31/07

1021

1034

18/06

1005

01/08

10

3

0

0

0

10

1983

1984

22.0

29.0

28/07

13.0

01/06

11.8

17.0

31/08

6.6

24/06

9.8

3.4

04/06

18.0

18.5

0

0

122.2

29

25.1

04/08

1020

1030

11/06

1001

03/06

6

2

0

0

0

6

1984

1985

19.7

27.4

13/07

11.5

06/06

11.0

17.6

26/07

3.7

01/06

9.4

0.5

01/06

17.4

17.7

0

0

213.8

50

25.6

06/06

1015

1031

07/07

989

05/08

0

0

0

0

1

11

1985

1986

20.4

28.5

27/06

12.5

05/06

11.1

18.4

16/07

4.0

12/06

9.6

-0.1

12/06

17.5

17.9

0

1

149.6

37

29.0

25/08

1018

1031

13/06

986

26/08

2

0

0

0

0

5

1986

1987

19.6

28.5

21/08

11.5

09/06

11.5

18.0

28/06

4.4

16/06

10.0

1.8

16/06

17.6

18.0

0

0

234.1

49

26.8

25/08

1017

1030

03/07

1000

17/07

3

1

0

0

0

11

1987

1988

19.7

29.0

07/08

11.8

09/06

11.3

16.9

22/07

5.7

06/06

9.8

3.0

06/06

17.6

17.9

0

0

204.0

46

45.3

31/08

1016

1029

24/06

990

03/07

1

0

0

0

1

6

1988

1989

22.9

31.9

22/07

13.0

06/06

12.0

18.2

22/07

2.5

02/06

9.8

-0.8

02/06

19.1

19.7

0

2

132.7

28

28.7

07/07

1020

1032

18/06

1003

11/08

1

1

0

0

0

8

1989

1990

22.6

35.0

03/08

12.9

12/06

12.1

19.9

04/08

6.9

03/07

9.9

2.1

05/06

18.3

18.9

0

0

71.9

24

10.4

17/08

1018

1030

11/07

993

21/06

1

1

0

0

0

5

1990

1991

21.2

28.1

11/07

13.3

03/06

11.9

17.9

06/07

3.0

04/06

9.7

-1.0

02/06

18.1

18.5

0

1

157.5

38

16.7

30/07

1019

1033

28/08

1004

07/06

6

4

0

0

1

6

1991

1992

21.5

28.5

29/06

14.6

07/06

12.4

17.5

09/08

6.6

19/06

10.4

4.0

18/06

19.0

19.3

0

0

186.7

35

21.0

20/07

1017

1034

17/06

988

30/08

3

1

0

0

0

7

1992

1993

20.8

27.0

08/06

15.7

14/06

11.3

17.0

20/08

5.1

23/08

9.0

1.0

23/08

18.5

18.8

0

0

131.2

38

21.3

11/08

1020

1034

17/08

1003

12/06

2

1

0

0

0

5

1993

1994

22.6

32.0

12/07

12.4

04/06

12.5

19.5

31/07

5.1

05/06

10.2

3.2

05/06

19.0

19.5

0

0

78.8

27

18.1

31/08

1018

1034

12/06

1004

03/06

3

1

0

0

0

7

1994

1995

23.8

33.3

01/08

11.5

13/06

12.4

18.0

29/07

6.0

08/06

9.2

3.5

30/08

18.6

18.9

0

0

45.8

22

10.2

23/08

1019

1033

22/06

1004

02/07

3

0

0

0

0

2

1995

1996

22.6

31.5

22/07

15.0

29/06

11.8

18.4

20/08

5.0

23/06

9.8

2.0

23/06

18.1

18.7

0

0

105.5

23

28.6

23/07

1019

1036

13/06

1000

03/07

2

0

0

0

1

4

1996

1997

22.6

31.1

08/08

12.0

27/06

13.0

20.2

11/08

5.8

01/06

11.1

2.0

01/06

18.7

19.3

0

0

213.0

42

28.4

27/08

1015

1030

07/07

991

21/06

2

1

0

0

0

10

1997

1998

20.8

30.5

10/08

11.1

11/06

11.9

17.9

21/06

5.6

12/06

10.1

2.7

12/06

17.9

18.5

0

0

164.8

43

22.9

01/08

1014

1029

05/08

998

12/07

0

0

0

0

1

7

1998

1999

21.8

30.9

02/08

14.5

12/06

12.2

18.0

03/08

5.6

22/08

10.1

3.5

22/08

18.5

19.2

0

0

206.1

38

24.9

06/07

1014

1029

08/07

994

08/08

2

0

0

0

1

14

1999

2000

21.3

32.0

19/06

14.5

10/07

12.3

17.1

10/08

7.8

07/06

10.6

5.0

07/06

18.0

18.7

0

0

137.3

29

18.9

03/07

1016

1028

16/06

989

10/07

0

0

0

0

2

6

2000

2001

22.1

30.9

29/07

13.7

17/06

12.5

19.4

29/07

4.0

03/06

10.9

1.6

09/06

18.2

18.9

0

0

141.8

34

23.5

17/07

1014

1028

18/06

993

18/07

1

0

0

0

0

8

2001

2002

21.5

30.8

29/07

14.5

05/06

12.6

17.2

30/07

8.1

28/06

10.8

5.5

29/06

18.3

18.9

0

0

183.7

37

48.8

30/07

1015

1031

31/08

991

03/07

0

0

0

0

0

9

2002

2003

24.0

36.4

10/08

17.3

03/07

13.3

19.8

10/08

6.9

30/08

11.5

4.3

31/08

19.2

20.0

0

0

94.6

28

17.0

22/06

1016

1025

13/06

997

01/07

0

0

0

0

0

7

2003

2004

22.3

30.7

08/06

15.5

01/06

13.0

21.1

09/08

5.5

19/06

11.1

3.2

19/06

18.8

19.5

0

0

186.5

43

38.0

07/07

1014

1034

13/06

989

23/06

0

0

0

0

1

9

2004

2005

22.2

31.7

19/06

15.7

11/06

12.3

18.9

20/06

3.6

7/06

10.3

-0.1

7/06

18.1

18.7

0

1

137.6

35

16.5

22/08

1016

1037

8/06

999

25/07

1

0

0

0

0

7

2005

2006

23.9

35.2

19/07

15.4

26/06

13.3

20.7

20/07

5.1

1/06

11.5

2.4

01/06

19.2

20.0

0

0

209.1

35

75.5

26/07

1015

1032

14/07

998

17/08

0

0

0

0

2

10

2006

2007

21.0

29.8

05/08

14.2

06/06

12.1

17.1

16/07

7.0

01/06

10.1

3.5

01/06

18.0

18.5

0

0

191.2

46

17.8

19/08

1010

1027

26/08

990

14/08

3

0

0

0

0

11

2007

2008

21.3

29.1

28/07

14.9

03/06

12.6

17.5

29/08

6.4

16/06

10.5

2.7

16/06

17.9

18.4

0

0

189.5

45

40.4

07/08

1010

1024

23/07

983

12/08

2

0

0

0

0

5

2008

2009

22.2

29.1

01/07

13.5

05/06

12.4

17.8

06/08

4.7

04/06

10.7

1.5

04/06

18.2

18.8

0

0

203.1

40

52.4

06/08

1013

1028

23/06

998

07/06

0

0

0

0

0

7

2009

2010

22.4

31.3

09/07

14.1

01/06

12.5

18.5

21/08

4.6

17/06

10.6

1.6

17/06

18.2

18.9

0

0

212.0

41

51.8

25/08

1015

1029

15/06

993

23/08

0

0

0

0

0

3

2010

Mean

21.8

X

X

X

X

12.2

X

X

X

X

10.3

X

X

18.3

18.9

0.0

0.2

155.2

35.5

X

X

1016

X

X

X

X

2.0

0.6

0.0

0.0

0.4

7.7

Mean

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(This page last updated 18th July 2011 2002 GMT)