MONTHLY CLIMATOLOGICAL SUMMARY for AUG. 2013 NAME: Charleswood CITY: Winnipeg STATE: MB ELEV: 235 m LAT: 49° 54' 00" N LONG: 97° 18' 00" W TEMPERATURE (°C), RAIN (mm), WIND SPEED (km/h) HEAT COOL AVG MEAN DEG DEG WIND DOM DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN SPEED HIGH TIME DIR ------------------------------------------------------------------------------------ 1 18.6 24.2 4:15p 13.3 11:30p 1.5 1.7 0.5 3.2 30.6 2:15p WNW 2 16.7 23.4 3:00p 10.6 6:15a 2.8 1.2 0.0 2.1 22.5 3:00p NNE 3 16.3 24.4 2:30p 8.7 5:45a 3.6 1.6 0.0 0.6 16.1 2:00p NNE 4 14.4 21.9 11:15a 8.8 6:30a 4.3 0.3 8.4 1.4 25.7 12:15p W 5 18.4 26.0 4:45p 13.4 7:45a 1.9 2.1 0.3 3.4 30.6 4:30p WSW 6 17.2 21.8 3:30p 13.0 11:30p 1.7 0.7 0.5 3.7 29.0 1:30p WNW 7 14.4 19.7 5:15p 10.7 6:30a 4.0 0.0 0.3 2.3 20.9 1:30p N 8 15.3 20.6 4:30p 9.2 6:30a 3.3 0.3 0.0 4.8 38.6 2:15p W 9 14.9 17.9 7:00p 12.3 6:45a 3.3 0.0 0.5 4.0 27.4 3:15a W 10 16.0 25.2 3:15p 9.4 6:45a 3.8 1.5 5.3 1.3 35.4 5:45p W 11 17.3 25.1 3:00p 10.2 7:15a 2.9 2.0 0.0 1.8 22.5 4:00p NW 12 17.4 23.6 1:45p 11.3 12:00m 2.5 1.6 0.0 2.4 20.9 3:15p NNE 13 15.6 24.3 4:15p 7.8 6:45a 4.3 1.6 0.0 1.4 19.3 1:45p NE 14 16.4 26.6 5:30p 6.7 6:30a 4.2 2.4 0.0 0.6 16.1 2:30p W 15 19.7 28.3 5:15p 10.9 6:45a 2.1 3.5 0.0 1.4 19.3 1:45p SSW 16 22.9 30.4 3:45p 15.8 5:30a 0.5 5.1 0.0 7.6 43.5 2:15p SW 17 22.1 28.4 4:15p 15.9 6:45a 0.4 4.2 0.0 9.5 49.9 4:15p SSW 18 21.8 26.6 4:15p 17.5 11:30a 0.0 3.6 42.4 3.1 32.2 10:45a SW 19 24.6 34.1 5:15p 15.6 6:00a 0.4 6.7 0.3 4.0 29.0 1:45p SW 20 23.6 32.6 3:00p 16.4 7:15a 0.2 5.5 0.0 3.4 30.6 9:00p SW 21 19.6 25.6 2:15p 13.9 4:30a 1.3 2.5 0.0 3.2 30.6 2:30p NW 22 17.7 26.3 5:45p 9.4 6:30a 3.2 2.5 0.0 1.3 19.3 1:15p W 23 20.5 29.3 4:15p 11.1 4:15a 2.1 4.4 0.0 4.3 32.2 2:15p SSW 24 24.3 31.6 2:15p 21.1 1:15a 0.0 6.0 0.8 6.0 32.2 8:30a SSW 25 25.1 34.4 3:30p 19.6 11:45p 0.0 6.7 0.0 1.3 19.3 2:45p WSW 26 23.9 33.4 4:45p 15.8 5:45a 0.5 6.1 0.0 1.0 19.3 1:00p SSW 27 25.6 34.1 3:30p 18.9 6:45a 0.0 7.3 0.0 0.6 20.9 1:45p SSW 28 26.0 35.6 5:30p 18.5 7:45a 0.0 7.7 0.0 0.2 11.3 10:15p SSW 29 22.6 27.7 5:45p 19.4 11:45p 0.0 4.3 1.0 1.6 22.5 11:45a S 30 23.7 30.2 3:00p 17.2 6:15a 0.1 5.5 0.0 4.3 30.6 4:15p SSW 31 22.2 30.8 1:30p 14.8 11:45p 0.2 4.1 1.8 4.7 30.6 5:30p NW ------------------------------------------------------------------------------------- 19.8 35.6 28 6.7 14 55.2 102.9 62.0 2.9 49.9 17 SSW ..AUGUST 2013 HIGHLIGHTS.. ..Fall-like first half.. summer-like second half.. It was a tale of two seasons this August in southern Manitoba as a prolonged spell of below normal temperatures that started in mid July persisted through the first half of August before a dramatic turnaround to warmer weather in the second half of the month. Temperatures averaged just 15.3C over the first two weeks of the month, over 3C below normal. The weather pattern then switched by mid month, with well above normal temperatures the rest of the month. Temperatures averaged 22.5C over the last two weeks, with 10 days reaching 30C or higher, including 7 of 8 days to end the month. In contrast, the mercury reached the 25C mark just once at YWG airport during the first two weeks of the month. Overall the month averaged 19.3C at YWG airport, or 0.6C above the 1981-2010 normal for August (18.7C) Rainfall was below normal at Winnipeg with only 42 mm at YWG airport and 62 mm at my location, the bulk of which fell during a heavy thunderstorm on August 18th. Otherwise, the month was fairly qiuet storm wise in Winnipeg, although heavier thunderstorm activity was observed elsewhere in the RRV especially in the warmer and more humid second half. Normal August rainfall for Winnipeg in August is 77 mm (1981-2010 normal for YWG airport)