CLIMATOLOGICAL SUMMARY for year 2011 NAME: Royston, Hertfordshire ELEV: 78 meters LAT: 52-03.15 N LONG: 000-01.35 W TEMPERATURE (C) HEAT COOL MAX MAX MIN MIN MEAN MEAN DEG DEG >= <= <= <= YR MO MAX MIN MEAN DAYS DAYS HI DAY LOW DAY 30 0 0 -20 ------------------------------------------------------------------------------------------------ 2011 01 6.3 1.8 4.3 435.1 0.0 12.7 13 -3.4 28 0 0 10 0 2011 02 9.1 4.1 6.6 328.5 0.0 14.5 25 -2.2 01 0 0 1 0 2011 03 11.0 3.3 7.0 352.7 0.0 17.4 25 -1.5 08 0 0 4 0 2011 04 18.1 7.7 12.5 177.1 1.1 27.3 23 3.6 10 0 0 0 0 2011 05 18.1 8.6 13.2 159.5 0.0 24.9 06 1.4 04 0 0 0 0 2011 06 19.9 10.5 15.0 108.8 9.0 31.2 27 6.6 12 1 0 0 0 2011 07 20.5 11.7 15.9 78.0 1.7 25.6 05 8.5 22 0 0 0 0 2011 08 20.5 12.6 16.2 75.0 9.1 28.6 02 9.2 19 0 0 0 0 2011 09 20.6 12.1 15.9 79.7 6.0 28.7 30 8.2 18 0 0 0 0 2011 10 16.9 9.7 13.0 172.3 8.2 28.9 01 2.6 20 0 0 0 0 2011 11 12.5 7.1 9.7 259.6 0.0 16.8 03 0.5 28 0 0 0 0 2011 12 8.4 3.7 6.1 380.7 0.0 12.9 26 -1.1 18 0 0 2 0 ------------------------------------------------------------------------------------------------ 15.2 7.8 11.3 2606.9 35.1 31.2 Jun -3.4 Jan 1 0 17 0 PRECIPITATION (mm) MAX ---DAYS OF RAIN--- OBS. OVER YR MO TOTAL DAY DATE 0.30 3.00 30.00 ------------------------------------------------ 2011 01 67.8 13.8 12 16 5 0 2011 02 32.8 9.0 19 10 3 0 2011 03 4.6 2.0 31 4 0 0 2011 04 3.8 1.6 03 3 0 0 2011 05 21.2 6.2 30 7 3 0 2011 06 60.2 9.0 28 14 10 0 2011 07 37.8 15.6 16 11 3 0 2011 08 57.8 17.0 26 11 6 0 2011 09 16.6 6.8 04 8 2 0 2011 10 20.2 5.0 09 9 2 0 2011 11 37.4 20.8 04 12 2 0 2011 12 31.6 6.0 30 13 5 0 ------------------------------------------------ 391.8 20.8 Nov 118 41 0 WIND SPEED (mph) DOM YR MO AVG HI DATE DIR ----------------------------------- 2011 01 3.5 28.0 15 268 2011 02 4.1 38.0 04 239 2011 03 3.0 33.0 31 19 2011 04 3.3 24.0 25 328 2011 05 3.9 29.0 22 259 2011 06 3.5 25.0 04 273 2011 07 2.9 27.0 17 303 2011 08 2.7 26.0 08 267 2011 09 3.4 36.0 12 251 2011 10 3.6 31.0 10 254 2011 11 2.6 31.0 27 201 2011 12 5.5 34.0 08 260 ----------------------------------- 3.5 38.0 Feb 261