MONTHLY CLIMATOLOGICAL SUMMARY for APR. 2001 NAME: Ferryhill CITY: Ferryhill STATE: Co. Durham ELEV: 394 feet LAT: 54deg 41min N LONG: 1deg 33min W TEMPERATURE (°C), RAIN (mm), WIND SPEED (mph) HEAT COOL AVG MEAN DEG DEG WIND DOM DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN SPEED HIGH TIME DIR ------------------------------------------------------------------------------------ 1 10.0 14.4 14:30 5.3 2:00 8.2 0.0 0.0 0.0 0.0 0:30 --- 2 10.5 15.0 14:00 7.7 23:30 7.8 0.0 4.2 0.0 0.0 0:30 --- 3 7.9 11.2 15:00 4.5 6:30 10.4 0.0 1.0 0.0 0.0 0:30 --- 4 6.3 9.9 14:30 4.0 5:30 12.0 0.0 7.6 0.0 0.0 0:30 --- 5 4.8 7.1 11:30 3.4 6:00 13.5 0.0 5.0 0.0 0.0 0:30 --- 6 8.5 10.8 13:00 4.4 0:30 9.8 0.0 4.6 0.0 0.0 0:30 --- 7 5.4 7.6 0:30 3.1 24:00 12.8 0.0 13.8 0.0 0.0 0:30 --- 8 5.6 9.7 14:30 1.2 6:00 12.7 0.0 0.0 0.0 0.0 0:30 --- 9 7.5 11.3 12:00 3.5 0:30 10.8 0.0 1.2 0.0 0.0 0:30 --- 10 7.1 9.5 15:00 5.8 21:30 11.1 0.0 0.2 0.0 0.0 0:30 --- 11 6.0 8.0 16:30 2.8 23:30 12.2 0.0 0.0 0.0 0.0 0:30 --- 12 4.2 6.3 14:30 1.8 3:00 14.1 0.0 0.0 0.0 0.0 0:30 --- 13 5.1 9.7 16:00 1.9 5:30 13.1 0.0 0.0 0.0 0.0 0:30 --- 14 8.0 11.4 15:30 3.7 1:30 10.3 0.0 0.4 0.0 0.0 0:30 --- 15 7.7 10.3 10:30 5.9 24:00 10.5 0.0 0.8 0.0 0.0 0:30 --- 16 5.0 6.6 14:00 1.9 24:00 13.3 0.0 0.0 0.0 0.0 0:30 --- 17 5.4 10.3 13:30 1.5 1:00 12.8 0.0 3.4 0.0 0.0 0:30 --- 18 3.3 6.0 16:00 1.1 4:30 15.0 0.0 0.4 0.0 0.0 0:30 --- 19 3.8 6.7 13:30 2.1 3:00 14.5 0.0 1.4 0.0 0.0 0:30 --- 20 4.4 7.8 15:00 1.9 4:00 13.9 0.0 0.2 0.0 0.0 0:30 --- 21 6.0 11.3 14:30 0.1 5:30 12.3 0.0 0.2 0.0 0.0 0:30 --- 22 6.4 9.6 14:30 4.4 5:00 11.8 0.0 0.2 0.0 0.0 0:30 --- 23 6.3 9.1 14:30 3.9 24:00 11.9 0.0 3.0 0.0 0.0 0:30 --- 24 7.5 13.5 14:00 3.2 2:30 10.8 0.0 1.2 0.0 0.0 0:30 --- 25 9.3 13.9 16:30 6.3 3:30 8.9 0.0 0.2 0.0 0.0 0:30 --- 26 7.2 8.2 14:00 4.4 24:00 11.0 0.0 1.6 0.0 0.0 0:30 --- 27 8.3 13.6 15:30 3.3 4:00 10.0 0.0 0.2 0.0 0.0 0:30 --- 28 8.0 12.6 15:30 4.3 23:00 10.3 0.0 2.2 0.0 0.0 0:30 --- 29 5.2 8.3 16:00 2.9 23:00 13.1 0.0 4.0 0.0 0.0 0:30 --- 30 6.9 11.1 16:00 3.4 0:30 11.4 0.0 0.4 0.0 0.0 0:30 --- ------------------------------------------------------------------------------------- 6.6 15.0 2 0.1 21 350.5 0.0 57.4 0.0 0.0 1 --- (-0.7) (110%) Max >= 32.0: 0 Max <= 0.0: 0 Min <= 0.0: 0 Min <= -18.0: 0 Max Rain: 13.80 ON 7/04/01 Days of Rain: 18 (> .2 mm) 9 (> 2 mm) 0 (> 20 mm) Heat Base: 18.3 Cool Base: 18.3 Method: Integration Overall, quite cold: the equal coldest (with 1998) since 1989. It had a warm start: 21.5C reached in London and 21C in East Anglia on the 2nd, a fine early date to top 70F - indeed, the earliest date for 70F since 1990. After the first three days things went downhill. There were then a couple of weeks of northerlies. -4C at Altnaharra on the 13th, and -6 at Loch Glascarnoch the following night. The final week was unsettled, with some thunderstorms in the south. There were 9 mm hailstones in a violent thunderstorm in the Bristol area on the 24th. 10 mm hailstones affected East Anglia on the 25th. Overall quite wet - 65% above average, but quite dry in the NW. Quite dull in the south.