Royston (Iceni) Weather Station
Daily Weather Observations - April 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 | 16.4 | 4.2 | 1.3 | 8.9 | 11.8 | 0.0 | NE | 3.4 | 30 | 1 | 1026.8 | 75.6 | 9.1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 2 | 18.0 | 2.1 | -2.9 | 9.0 | 11.4 | 0.3 | NE | 2.4 | 23 | 0 | 1027.2 | 79.9 | 8.5 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| 3 | 8.8 | 3.7 | 1.3 | 9.3 | 0.1 | 0.1 | N | 3.4 | 30 | 8 | 1024.4 | 85.0 | 6.0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
| 4 | 12.8 | 0.2 | -3.3 | 8.7 | 7.0 | 0.0 | N | 1.1 | 25 | 8 | 1023.6 | 81.6 | 5.9 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
| 5 | 19.0 | 2.0 | -1.5 | 8.9 | 12.6 | 0.0 | W | 0.1 | 7 | 2 | 1021.7 | 71.9 | 10.5 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
| 6 | 16.4 | 5.5 | 1.9 | 9.5 | 12.7 | 0.0 | N | 0.6 | 18 | 4 | 1022.7 | 75.7 | 9.8 | 0 | 0 | 0 | 0 | 0 | 0 | 6 |
| 7 | 16.0 | 4.4 | -0.3 | 9.9 | 5.1 | 0.0 | N | 0.1 | 12 | 7 | 1026.1 | 70.7 | 9.3 | 0 | 0 | 0 | 0 | 0 | 0 | 7 |
| 8 | 18.5 | 6.2 | 2.6 | 10.0 | 12.2 | 0.0 | W | 2.5 | 18 | 0 | 1023.0 | 65.1 | 12.3 | 0 | 0 | 0 | 0 | 0 | 0 | 8 |
| 9 | 17.6 | 6.8 | 3.0 | 10.5 | 6.8 | 0.0 | W | 1.4 | 18 | 1 | 1018.4 | 74.8 | 11.7 | 0 | 0 | 0 | 0 | 0 | 0 | 9 |
| 10 | 17.5 | 8.3 | 4.0 | 11.0 | 3.5 | 0.0 | W | 1.5 | 16 | 6 | 1021.2 | 73.7 | 12.4 | 0 | 0 | 0 | 0 | 0 | 0 | 10 |
| 11 | 18.8 | 7.1 | 2.1 | 11.1 | 8.2 | 0.0 | N | 0.1 | 14 | 7 | 1022.7 | 71.6 | 12.3 | 0 | 0 | 0 | 0 | 0 | 0 | 11 |
| 12 | 17.5 | 4.8 | 1.0 | 11.4 | 6.1 | 0.0 | NE | 0.1 | 14 | 3 | 1021.2 | 78.9 | 11.1 | 0 | 0 | 0 | 0 | 0 | 0 | 12 |
| 13 | 15.7 | 4.6 | 2.6 | 11.5 | 3.7 | 0.0 | N | 0.2 | 12 | 8 | 1020.3 | 95.0 | 8.9 | 1 | 0 | 0 | 0 | 0 | 0 | 13 |
| 14 | 22.0 | 6.7 | 6.7 | 11.5 | 8.5 | 0.0 | N | 0.1 | 9 | 8 | 1021.6 | 87.6 | 12.5 | 0 | 0 | 0 | 0 | 0 | 0 | 14 |
| 15 | 23.0 | 5.5 | 3.6 | 12.3 | 9.3 | 0.0 | NW | 0.1 | 9 | 8 | 1021.3 | 80.7 | 13.7 | 0 | 0 | 0 | 0 | 0 | 0 | 15 |
| 16 | 22.0 | 9.7 | 5.8 | 13.0 | 9.6 | 0.0 | N | 0.7 | 16 | 0 | 1022.6 | 82.3 | 14.9 | 0 | 0 | 0 | 0 | 0 | 0 | 16 |
| 17 | 17.4 | 9.7 | 8.5 | 13.5 | 7.3 | 0.0 | N | 0.5 | 16 | 8 | 1023.3 | 75.8 | 11.8 | 0 | 0 | 0 | 0 | 0 | 0 | 17 |
| 18 | 16.1 | 4.9 | 1.0 | 13.2 | 12.1 | 0.0 | NW | 1.0 | 18 | 1 | 1023.3 | 67.4 | 10.1 | 0 | 0 | 0 | 0 | 0 | 0 | 18 |
| 19 | 20.6 | 8.0 | 2.5 | 12.8 | 13.6 | 0.0 | W | 3.0 | 23 | 0 | 1018.3 | 63.7 | 13.2 | 0 | 0 | 0 | 0 | 0 | 0 | 19 |
| 20 | 15.9 | 5.3 | 2.0 | 13.0 | 10.0 | 0.0 | SE | 1.5 | 23 | 7 | 1021.1 | 76.2 | 9.6 | 0 | 0 | 0 | 0 | 0 | 0 | 20 |
| 21 | 19.2 | 6.0 | 4.7 | 12.9 | 8.2 | 0.0 | S | 3.4 | 21 | 8 | 1019.6 | 72.9 | 11.8 | 0 | 0 | 0 | 0 | 0 | 0 | 21 |
| 22 | 21.1 | 7.5 | 6.0 | 13.0 | 6.7 | TR | SW | 3.3 | 18 | 6 | 1017.6 | 63.0 | 14.9 | 0 | 0 | 0 | 0 | 0 | 0 | 22 |
| 23 | 17.1 | 10.3 | 7.8 | 13.4 | 0.2 | 0.6 | SW | 2.6 | 21 | 8 | 1016.9 | 83.3 | 14.0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 |
| 24 | 19.9 | 12.4 | 11.9 | 13.6 | 2.6 | 0.0 | SW | 3.3 | 23 | 6 | 1013.6 | 81.1 | 16.3 | 0 | 0 | 0 | 0 | 0 | 0 | 24 |
| 25 | 18.0 | 13.3 | 11.1 | 14.3 | 2.8 | 0.6 | SW | 2.2 | 23 | 7 | 1011.5 | 74.2 | 14.9 | 0 | 0 | 0 | 0 | 0 | 0 | 25 |
| 26 | 18.0 | 7.6 | 4.0 | 13.9 | 2.7 | 0.0 | NE | 2.2 | 23 | 6 | 1019.9 | 86.9 | 11.1 | 0 | 0 | 0 | 0 | 0 | 0 | 26 |
| 27 | 17.8 | 9.0 | 8.9 | 14.0 | 4.5 | 0.0 | N | 2.1 | 21 | 8 | 1022.5 | 91.3 | 11.3 | 0 | 0 | 0 | 0 | 0 | 0 | 27 |
| 28 | 22.5 | 5.1 | 2.5 | 13.5 | 13.5 | 0.0 | N | 2.0 | 18 | 0 | 1022.1 | 75.0 | 13.1 | 0 | 0 | 0 | 0 | 0 | 0 | 28 |
| 29 | 20.9 | 8.0 | 6.4 | 14.0 | 5.8 | 0.0 | N | 1.2 | 16 | 8 | 1018.4 | 84.4 | 12.5 | 0 | 0 | 0 | 0 | 0 | 0 | 29 |
| 30 | 19.5 | 3.8 | 0.5 | 14.0 | 13.9 | 0.0 | NE | 1.7 | 25 | 0 | 1014.1 | 71.3 | 11.6 | 0 | 0 | 0 | 0 | 0 | 0 | 30 |
| Total/Mean | 18.1 | 6.4 | 3.5 | 11.9 | 232.1 | 1.6 | X | 1.6 | X | 4.8 | 1020.9 | 77.2 | 11.5 | 1 | 0 | 0 | 0 | 0 | 0 | Total/Mean |
| *Diff./% | +5.0 | +1.9 | 159% | 4% | *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 3.8 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
April 2007 Weather Review:
......and click on the link below for a text report of the April 2007 weather in Royston
April (since 1973) at Royston (Iceni) Weather Station:
Mean daily maximum temperature (30 years 1976/2005) 13.1°C
Mean daily minimum temperature (30 years 1976/2005) 4.5°C
Highest temperature 25.5°C (16th April 2003); lowest temperature -4.1°C (11th April 1978)
Lowest grass minimum temperature -9.4°C (4th April 1996)
Warmest April 1987 (Mean temperature 11.2°C); coldest April 1978 (Mean temperature 6.2°C)
Average April rainfall (30 years 1971/2000) 44.3 mm
Wettest April 1998 (Rainfall 120.7 mm); driest April 1984 (Rainfall 9.0 mm)
Wettest Day 9th April 1998 (Rainfall 32.0 mm);
Highest number of "rain days" (0.2 mm or more) 26 (1998); lowest number of "rain days" 5 (1976)
Highest number of days with thunder 7 (1998)
Highest number of air frosts 8 (1975)
Highest number of ground frosts 15 (1974, 1984)
Highest number of days with snow falling 5 (1975, 1986)
Highest number of days with snow lying (ground with more than 50% snow cover @ 0900 GMT) 2 (1978, 1983)
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| This view is at Wrest Park, Silsoe, Bedfordshire (27 km SSW of Royston) at 1445 GMT on 7th April 2007 and shows the head of The Long Water. In the distance is the House which was designed by the Earl de Grey in a French style and built between 1834 and 1839. At the other end of The Long Water (behind the camera) lies the Pavilion and part of the boundary canal network. Water has always been an important feature of the garden at Wrest Park and Leg O' Mutton Lake and amphitheatre are situated just to the left of the picture. This was a fairly pleasant early April day with a maximum temperature of 16.0°C and sunshine of 5.1 hours at Royston. | Some 66 km WSW of Royston lies Waddesdon Manor, a magnificent house and grounds in the style of a 16th Century French chateau. It was built between 1874 and 1889 for Baron Ferdinand de Rothschild to entertain his guests and display his vast collection of 18th Century French decorative arts. Waddesdon has one of the finest Victorian gardens in the country, renowned for its seasonal displays, and the parterre pictured here (at 1137 GMT on 14th April 2007) has a stunning display of Spring flowers over an area twice the size of that shown. It was a very warm day for mid-April, the maximum temperature at Royston reaching 22.0°C, with sunshine of 8.5 hours. | There is not much in evidence in this picture (at 0748 GMT on 28th April 2007) of anything other than the sky and oil seed rape! Once again large swathes of the countryside around Royston are exhibiting various shades of yellow to great effect. Due to the mild Winter and early Spring the crop is well advanced this year and has coloured the landscape several weeks earlier than normal. The location here is on the N side of the A505 about 2 km E of Royston, not far from Hyde Hill Farm. The day has started bright and clear and these conditions persisted throughout the day, giving 13.5 hours sunshine and a maximum temperature of 22.5°C. |
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(This page last updated 9th May 2007 1954 GMT)