Royston (Iceni) Weather Station
News....from Royston (Iceni) Weather Station
Page 3
Items of interest and unusual occurrences concerning the Royston weather will be posted on this page. Reports of unusual or severe weather (e.g. ball lightning, funnel clouds, whirlwinds, heavy showers etc.), and any occurrences of hail and thunder, in or around Royston will be most welcome for inclusion on this page. Please e-mail any information to the station Met. Observer, Richard Barker, on rbarker@iceni.org.uk
| Period/Date | Weather Information |
| January 2004 | A mild and wet January, with average sunshine. Mean max. temp. 7.7°C (+1.1); mean min. temp. 3.3°C (+1.2); rainfall 82.1 millimetres (160%); sunshine 57.1 hours (103%). Dullest January in last 6 years. For full details see Daily Weather Observations - January 2004 page. |
| 2nd/4th February 2004 | Exceptional warmth for early February. Max. temp. 2nd 14.1°C, 3rd 15.2°C and 4th 16.4°C. The values quoted are the highest for each of these dates respectively in the last 32 years. |
| 1st/15th February 2004 | Further to the entry above, a very mild first half of February. Mean max. temp, 1st/15th 10.5°C (+3.4); mean min. temp. 1st/15th 6.7°C (+4.7). Differences from average quoted relate to the 30 Year (1973/2002) daily means for this period. |
| February 2004 | Positive mean temperature anomaly (see above two entries) reduced to 1.1°C by the end of the month. Mean max. temp. 8.0°C (+0.8); mean min. temp. 3.2°C (+1.4); rainfall 39.0 millimetres (111%); sunshine 69.1 hours (95%). Dullest February since at least 1997. For full details see Daily Weather Observations - February 2004 page. |
| 20th March 2004 | A very windy afternoon; maximum gust speed 71 mph (1610 GMT). |
| March 2004 | A rather dry month, with temperatures and sunshine near average. Mean max. temp. 10.5°C (+0.4); mean min. temp. 3.6°C (+0.3); rainfall 28.2 millimetres (66%); sunshine 102.5 hours (96%). For full details see Daily Weather Observations - March 2004 page. |
| April 2004 | A wet month, but with two dry spells of 7 (10th/16th inc.) and 5 (22nd/26th inc.) days respectively. Wettest April since 2001 only, but warmest since 1987 (equal 1999). Sunshine raised to average by 60.5 hours sunshine in 5 days 22nd/26th inc. Mean max. temp 14.6°C (+1.7); mean min. temp. 6.0°C (+1.7); rainfall 71.2 millimetres (161%); sunshine 144.9 hours (99%). For full details see Daily Weather Observations - April 2004 page. |
| 7th May 2004 | Wettest May day since 29th May 1992, and wettest day in any month since 1st January 2003. Rainfall in 24 hours ended 0900 GMT on 8th = 20.7 millimetres. |
| May 2004 | Another warmer than average month; a little wetter and a little duller than normal. Mean max. temp 17.4°C (+0.6); mean min. temp. 8.6°C (+1.4); rainfall 53.3 millimteres (113%); sunshine 176.7 hours (93%). For full details see Daily Weather Observations - May 2004 page. |
| 8th June 2004 | Maximum temperature 30.7°C. This is the earliest date in the year that 30°C has been exceeded since at least 1972 (although 30°C was reached on 7th June 1996). |
| June 2004 | A dry, sunny and warm June. Mean max. temp. 21.5°C (+1.8); mean min. temp. 12.1°C (+1.7); rainfall 25.6 millimetres (51%); sunshine 200.8 hours (112%). 3rd warmest June since at least 1972 (after 1976 and 2003); 5th consecutive drier than average June. For full details see Daily Weather Observations - June 2004 page. |
| 7th/8th July 2004 | Exceptional rainfall event: Rainfall 7th/8th = 71.9 millimetres (July average 43.2 millimetres). 7th (38.0 millimetres) the wettest day in any month since 30th July 2002. Click here to view a hyetogram of this event. |
| July 2004 | A very wet July (see above), but temperatures and sunshine close to average. Mean max. temp. 21.9°C (-0.3); mean min. temp. 12.5°C (0.0); rainfall 103.9 millimetres (241%); sunshine 186.8 hours (98%). Coolest July since 2000; wettest July since 2002; dullest July since 2002. For full details see Daily Weather Observations - July 2004 page. |
| 9th August 2004 | Warmest night in any month since at least 1972. Overnight minimum temperature 8th/9th = 21.1°C. |
| August 2004 | Despite the inclement weather (notably heavy rainfall) in other parts of the country a quite reasonable August in Royston, with a mean temperature 1.5°C above average, slightly above average sunshine, and only a modest excess of rainfall. Mean max. temp. 23.5°C (+1.2); mean min. temp. 14.4°C (+1.8); rainfall 57.0 millimetres (115%); sunshine 198.3 hours (106%). For full details see Daily Weather Observations - August 2004 page. |
| 25th September 2004 | First sunless day since 1st June 2004, bringing to an end a consecutive sequence of 115 days with at least some sunshine recorded on each day. |
| September 2004 | A dry, sunny and warm September. Mean max. temp. 20.6°C (+1.9); mean min. temp. 11.7°C (+1.2); rainfall 16.0 millimetres (28%); sunshine 178.4 hours (126%). Driest September since 1997; warmest September since 1999. For full details see Daily Weather Observations - September 2004 page. |
| October 2004 | A little wetter than normal, but temperatures and sunshine close to average. Mean max. temp. 14.7°C (+0.4); mean min. temp. 8.2°C (+0.4); rainfall 69.4 millimetres (122%); sunshine 108.7 hours (95%). Warmest October since 2001; wettest since 2001; dullest since 2002. For full details see Daily Weather Observations - October 2004 page. |
| 19th November 2004 | 4 cm level snow depth @0900 GMT. This is the earliest date in Autumn with snow lying since at least 1972 (but only 1 day in advance of both November 1988 and November 1985). |
| November 2004 | Yet another milder than average month, whereas rainfall and sunshine near normal.. Mean max. temp. 10.2°C (+0.6); mean min. temp. 5.7°C (+1.0); rainfall 57.2 millimetres (109%); sunshine 70.5 hours (104%). 6th successive milder than average November, but absolute max. temp. of 14.2°C the lowest in November since 1987. Coldest and driest November since 2001.18th (rainfall and rainfall equivalent of snow 28.3 millimetres) was wettest November day since at least 1972. For full details see Daily Weather Observations - November 2004 page. |
| Autumn (September/November) 2004 | Milder, drier and sunnier than average! Mean max. temp. 15.2°C (+1.0); mean min. temp. 8.5°C (+0.8); rainfall 142.6 millimetres (86%); sunshine 357.6 hours (110%). Mildest Autumn since 1995 (but mean temp. equivalent to Autumn 2001); driest Autumn since 1999. |
| December 2004 | A mild, dry and sunny December! Mean max. temp. 8.1°C (+0.9); mean min. temp. 3.4°C (+0.4); rainfall 27.3 millimetres (52%); sunshine 69.5 hours (146%). Mildest December since 2002 only; driest December since 2001 only; 6th sunnier than average December in the last 7 years (with sunshine being 39% above average overall in this period). For full details see Daily Weather Observations - December 2004 page. |
| Year 2004 | Another warmer than average year; 5th warmest (with 1997, same mean temp.) since 1972. Rainfall and sunshine near normal. Mean max. temp. 14.9°C (+0.9); mean min. temp. 7.7°C (+1.0); rainfall 630.2 millimetres (108%); sunshine 1563.3 hours (104%). Sunshine 434.2 hours less than in 2003! |
| Continued on Page 4 |
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(This page last updated 3rd January 2005 2219 GMT)