Royston (Iceni) Weather Station

Daily Weather Observations - July 2007

(All Times GMT)

Date Max. Temp. (°C) 09/09h Min. Temp. (°C) 09/09h Grass Min. Temp. (°C) 21/09h Earth (30cms) Temp. (°C) 09h Sun (Hours) 00/00h R'fall (MM) 09/09h Wind Dir'n 09h Mean Wind Speed (MPH) 00/00h Max. Gust Speed (MPH) 00/00h Cloud Cover (Oktas) 09h Mean MSL Air Pressure (mB) 00/00h Mean Rel. Humd. (%) 00/00h Mean Temp. (°C) 00/00h Fog (vis. <1000m @ 09h) Fog (vis. <200m @ 09h) Snow or Rain and Snow 00/00h Snow Lying @ 09h (>50% cover) Hail 00/00h Thunder 00/00h Date
1 20.9 14.6 13.7 17.8 7.1 0.2 S 5.4 32 6 998.9 83.8 17.0 0 0 0 0 0 0 1
2 19.5 13.0 11.0 18.0 2.8 10.4 SW 4.1 30 7 998.3 88.3 15.5 0 0 0 0 0 1 2
3 20.5 11.1 9.5 17.9 6.3 4.4 SW 3.5 23 6 996.3 83.8 14.5 0 0 0 0 0 1 3
4 19.5 12.0 10.8 18.0 3.7 4.3 W 6.2 30 7 1001.3 83.8 15.1 0 0 0 0 0 1 4
5 19.5 12.6 10.6 18.0 2.4 2.5 W 5.1 32 4 1005.9 84.7 15.4 0 0 0 0 0 0 5
6 19.2 13.0 12.2 18.0 4.9 0.0 W 9.8 39 6 1004.8 73.0 15.8 0 0 0 0 0 0 6
7 21.9 11.7 10.1 17.9 10.9 0.0 W 3.4 23 4 1012.5 68.1 16.6 0 0 0 0 0 0 7
8 21.5 10.4 5.6 18.1 9.8 0.0 W 0.7 16 1 1013.9 62.8 16.0 0 0 0 0 0 0 8
9 22.5 11.0 7.6 18.3 9.2 0.0 W 0.7 18 5 1009.9 68.8 15.9 0 0 0 0 0 1 9
10 20.7 10.7 8.0 18.6 8.2 0.1 W 0.5 16 6 1009.2 69.6 15.6 0 0 0 0 0 0 10
11 17.5 12.2 9.9 18.5 1.0 TR NW 1.8 23 8 1011.4 78.0 14.8 0 0 0 0 0 0 11
12 23.1 13.0 9.0 17.9 3.8 0.2 SW 3.3 25 8 1010.5 79.6 17.5 0 0 0 0 0 0 12
13 23.0 14.0 12.2 18.1 1.5 0.2 S 3.0 25 8 1007.7 82.7 18.3 0 0 0 0 0 0 13
14 22.7 16.4 15.5 18.5 8.1 0.1 SW 4.5 32 6 1007.8 71.1 19.3 0 0 0 0 0 0 14
15 22.9 14.8 13.0 19.0 1.4 TR E 0.1 16 6 1007.8 84.0 18.8 0 0 0 0 0 0 15
16 23.7 17.1 15.7 19.1 3.5 0.0 SW 1.4 18 8 1005.8 75.9 19.7 0 0 0 0 0 0 16
17 21.0 14.0 12.6 19.5 8.0 2.0 SW 5.3 30 3 1008.8 78.9 17.1 0 0 0 0 0 0 17
18 22.8 12.4 10.8 18.8 7.6 3.6 SW 2.5 23 3 1014.0 74.5 17.3 0 0 0 0 0 0 18
19 24.5 12.1 8.9 18.6 6.6 0.4 NW 0.1 16 4 1015.7 69.9 17.8 0 0 0 0 0 0 19
20 19.9 13.5 11.0 18.9 3.1 16.3 NE 2.7 30 8 1009.1 91.9 15.2 0 0 0 0 0 0 20
21 20.0 11.5 9.6 17.9 3.3 2.4 SW 3.5 28 7 1008.9 83.5 14.7 0 0 0 0 0 0 21
22 20.6 10.9 9.5 18.1 8.1 TR W 0.8 21 2 1006.7 76.7 15.7 0 0 0 0 0 0 22
23 20.5 12.8 9.4 18.5 0.1 1.6 E 0.6 23 8 997.2 87.0 15.6 0 0 0 0 0 0 23
24 22.5 12.5 11.8 18.2 10.1 0.0 NW 3.5 25 4 1005.0 73.0 17.2 0 0 0 0 0 0 24
25 21.0 12.0 10.0 18.6 3.0 0.1 SW 5.9 32 7 1007.9 82.0 16.4 0 0 0 0 0 0 25
26 19.0 13.8 13.0 18.4 1.6 5.0 S 7.6 41 8 1001.4 86.9 15.7 0 0 0 0 0 0 26
27 22.5 12.5 11.1 17.8 8.7 0.0 SW 6.0 32 7 1006.6 76.5 17.2 0 0 0 0 0 0 27
28 22.2 12.2 10.5 18.0 8.2 6.0 W 3.4 28 5 1010.7 71.2 17.2 0 0 0 0 0 0 28
29 20.3 11.0 10.5 18.4 9.6 0.0 NW 2.2 25 8 1012.4 70.9 14.9 0 0 0 0 0 0 29
30 21.3 9.1 7.2 18.3 10.2 0.0 NW 1.8 18 3 1018.2 65.7 14.7 0 0 0 0 0 0 30
31 22.9 8.8 5.6 18.0 13.3 0.0 CALM 0.1 9 0 1017.7 64.5 16.2 0 0 0 0 0 0 31
Total/Mean 21.3 12.5 10.5 18.3 186.4 59.8 X 3.2 X 5.6 1007.8 77.1 16.4 0 0 0 0 0 4 Total/Mean
*Diff./% -1.0 -0.1     97% 138%                           *Diff./%
Date Max. Temp. (°C) 09/09h Min. Temp. (°C) 09/09h Grass Min. Temp. (°C) 21/09h Earth (30cms) Temp. (°C) 09h Sun (Hours) 00/00h R'fall (MM) 09/09h Wind Dir'n 09h Mean Wind Speed (MPH) 00/00h Max. Gust Speed (MPH) 00/00h Cloud Cover (Oktas) 09h Mean MSL Air Pressure (mB) 00/00h Mean Rel. Humd. (%) 00/00h Mean Temp. (°C) 00/00h Fog (vis. <1000m @ 09h) Fog (vis. <200m @ 09h) Snow or Rain and Snow 00/00h Snow Lying @ 09h (>50% cover) Hail 00/00h Thunder 00/00h Date

Differences from average:

Differences from average shown in red. Reference periods used are as follows: Temperature 30 Years 1976/2005; rainfall 30 Years 1971/2000; sunshine 30 Years 1971/2000.

(*The differences from average quoted during the course of the month relate to the cumulative daily averages up to the date of the last observation, not the averages for the month as a whole)

Additional Data:

Rainfall Duration  35.9 hours

Air Frost Duration  NIL hours

Graphs and Charts:

Click on the following links to view this month's graphs and charts.....

1. Daily Maximum, Minimum & Grass Minimum Temperatures

2. Daily Maximum & Minimum Temperatures (with 30 Year Comparative Means)

3. Daily Earth (30 cms Depth) Temperature @ 0900 GMT  4. Daily Rainfall  5.  Daily Sunshine

6. Daily Maximum Gust & Mean Wind Speed  7. Daily Wind Direction @ 0900 GMT

8. Daily Mean MSL Air Pressure  9.  Daily Mean Relative Humidity   10. Thermograph 

11.  Barograph  12.  Hygrograph  13.  Anemograph  14. Wind Direction

15. Sunshine Duration  16. Rainfall Intensity & Duration

June 2007 Weather Review:

......and click on the link below for a text report of the July 2007 weather in Royston

July 2007 Weather Review

July (since 1972) at Royston (Iceni) Weather Station:

Mean day maximum temperature (30 years 1976/2005) 22.3°C

Mean night minimum temperature (30 years 1976/2005) 12.6°C

Highest temperature 35.2°C (19th July 2006); lowest temperature 6.4°C (30th July 1977)

Lowest grass minimum temperature 2.8°C (13th July 1993)

Hottest July 2006 (Mean temperature 21.5°C); coolest July 1978 (Mean temperature 15.2°C)

Average July rainfall (30 years 1971/2000) 43.2 mm

Wettest July 2002 (Rainfall 104.7 mm); driest July 1984 (Rainfall 8.3 mm)

Wettest Day 26th July 2006 (Rainfall 75.5 mm);

Highest number of "rain days" (0.2 mm or more) 20 (1988); lowest number of "rain days" 6 (1976,1977, 1979, 1984, & 1990)

Highest number of days with thunder 6 (1975, 1982,1983 & 2002)

The Green Street allotment site in Royston is probably more intensively cultivated at present than at any time in the last 30 years due to the upsurge in interest in growing one's own vegetables in recent times. When this photograph was taken on 9th July 2007 (at 1040 GMT) judging for the best kept allotment as part of 'Royston in Bloom' had recently taken place and this westward looking view from near the Coombes Hole boundary shows the winning plot in the foreground. A W'ly breeze of mean speed 2 knots gusting to 8 knots is drifting across the allotments in a temperature of 19.0°C (later rising to a maximum of 22.5°C). Sunshine for the day was 9.2 hours. Due to some splendid floral displays over the years the Town Hall roundabout in Royston has featured in these pages on several previous occasions. The display this Summer is no exception and motorists travelling through Royston on the A10 road can hardly have failed to be impressed as they cross the ancient east-west Icknield Way at this point. This is the view looking southwards (at 0903 GMT on 22nd July 2007) along the A10 relief road built in the 1960's to remove through traffic from the High Street several hundred metres to the west. The site of the demolished Priory Cinema is to the left of the picture, and the Priory Gardens to the right.  This 'mother and baby' cameo was pictured on the Wimpole Hall estate some 10 km N of Royston on 24th July 2007 at 1139 GMT. The Wimpole Hall farm specialises in rare breeds of cattle and this pair are believed to be of the White Park breed which are characterised by their black noses, eyes and ears and long horns sweeping outwards. Also present (not pictured) with this herd were specimens of the Longhorn breed whose colours vary from red-roan through to plum-brindle; they have a distinctive white stripe down their backs and tails, and horns which curve towards the front. On the horizon the 1708 built Gothic Tower can just be detected.

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(This page last updated 12th August 2007 1929 GMT)