MONTHLY CLIMATOLOGICAL SUMMARY for AUG. 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 19.9 25.0 16:30 12.4 8:00 0.4 1.2 0.0 0.0 0.0 8:00 --- 2 19.1 25.3 15:25 14.9 5:30 0.9 1.6 0.2 0.0 0.0 0:15 --- 3 17.6 21.0 16:30 14.7 24:00 1.3 0.5 0.4 0.0 0.0 0:10 --- 4 14.9 18.9 15:00 11.9 23:30 3.3 0.0 2.8 0.0 0.0 0:10 --- 5 14.7 19.6 16:10 10.2 3:40 3.7 0.1 0.0 0.0 0.0 0:10 --- 6 14.4 17.6 15:20 11.3 5:30 3.8 0.0 0.6 0.0 0.0 0:10 --- 7 13.2 15.3 11:40 11.9 7:20 5.0 0.0 18.4 0.0 0.0 0:10 --- 8 12.6 14.7 18:00 11.6 9:40 5.7 0.0 7.4 0.0 0.0 0:10 --- 9 13.6 17.7 16:40 11.1 6:40 4.7 0.0 1.8 0.0 0.0 0:10 --- 10 13.5 18.5 15:00 10.4 1:20 4.8 0.0 0.0 0.0 0.0 0:10 --- 11 15.2 19.5 13:10 9.9 4:10 3.2 0.1 0.2 0.0 0.0 0:10 --- 12 16.9 20.2 14:40 15.2 20:20 1.5 0.2 1.6 0.0 0.0 0:10 --- 13 18.9 21.8 14:30 16.1 0:10 0.5 1.1 0.0 0.0 0.0 0:10 --- 14 20.4 23.5 17:00 17.1 24:00 0.1 2.2 0.0 0.0 0.0 0:10 --- 15 19.5 25.5 14:50 15.9 4:00 0.8 1.9 4.8 0.0 0.0 0:10 --- 16 15.4 18.7 14:30 12.6 23:40 2.8 0.0 3.8 0.0 0.0 0:10 --- 17 15.6 20.5 14:10 11.2 6:10 2.9 0.2 0.0 0.0 0.0 0:10 --- 18 17.2 21.7 12:30 14.7 6:30 1.6 0.6 0.0 0.0 0.0 0:10 --- 19 16.4 20.6 14:50 15.1 22:30 1.9 0.1 8.6 0.0 0.0 0:10 --- 20 15.6 19.7 15:50 12.3 23:50 2.8 0.2 0.0 0.0 0.0 0:10 --- 21 15.6 22.5 15:50 10.4 6:00 3.1 0.5 0.4 0.0 0.0 0:10 --- 22 16.8 22.5 16:00 11.9 6:00 2.3 0.9 0.2 0.0 0.0 0:10 --- 23 18.5 24.1 16:10 14.1 6:50 1.4 1.6 0.0 0.0 0.0 0:10 --- 24 17.2 19.7 12:20 15.1 6:30 1.3 0.2 3.2 0.0 0.0 0:10 --- 25 17.0 20.6 17:50 14.8 8:10 1.7 0.3 1.4 0.0 0.0 0:10 --- 26 16.2 20.3 17:00 13.2 6:50 2.4 0.3 0.2 0.0 0.0 0:10 --- 27 14.3 18.5 15:00 10.4 6:30 3.9 0.0 0.0 0.0 0.0 0:10 --- 28 15.0 20.9 16:00 9.2 6:40 3.7 0.4 0.0 0.0 0.0 0:10 --- 29 15.9 22.4 16:40 9.4 6:40 3.2 0.8 0.0 0.0 0.0 0:10 --- 30 14.6 17.3 17:40 12.4 5:20 3.7 0.0 1.0 0.0 0.0 0:10 --- 31 13.6 16.6 17:30 11.2 6:00 4.7 0.0 1.0 0.0 0.0 0:10 --- ------------------------------------------------------------------------------------- 16.1 25.5 15 9.2 28 83.3 15.1 58.0 0.0 0.0 1 --- (+1.0) (95%) Max >= 32.0: 0 Max <= 0.0: 0 Min <= 0.0: 0 Min <= -18.0: 0 Max Rain: 18.40 ON 7/08/01 Days of Rain: 15 (> .2 mm) 7 (> 2 mm) 0 (> 20 mm) Heat Base: 18.3 Cool Base: 18.3 Method: Integration Overall, warmer than average (CET 16.9C). Some hot spells intermingled with cool snaps. Some violent thunderstorms early in the month: 52 mm of rain at Northolt (London) on the 9th - most of it in 3 hours; 34 mm fell in one hour. Very heavy hail at Coggleshall (Essex) on the same day. Small tornadoes damaged crops at Milton Keynes, and overturned caravans and ripped rooves off garages at Gosport along a 2 km track of destruction, also on the 9th. There was a heatwave midmonth, as moist hot air swept across the south; 30C was reached even in London, even though it was mainly overcast. The temperatures peaked at 32.0C in several locations in the SE on the 15th; it was also very humid, with high night-time minima in some urban areas of around 20C. It was very wet in eastern Scotland 18-19th. Cooler for a while, then a hot end to the end of the month, with 30C on a few days in the SE, giving the warmest August Bank Holiday weekend in decades (e.g. the hottest Bank Holiday Saturday in London since 1943): 32.0C again in London and Herne Bay on Bank Holiday Saturday (25th), before becoming cloudier, and wetter, with cool NWs for the last few days. There were some severe thunderstorms and hail events on the 25th in the south and east, with 25 mm hailstones in Nottingham, and cars were damaged at Wragby (Lincs.). Overall there was about average rainfall and sunshine, although somewhat sunnier than average in the north.