1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st Temperatures Air Max (C) 14.6 13.3 5.7 8.1 4.7 5 4.2 6.1 5.6 8.4 7.1 11.9 12.3 12.8 14 15.2 18.2 11.8 9.9 9.9 9.6 10.2 14.2 13.6 9.1 11.8 13.7 14.6 13.4 12.4 17.5 Air Min (C) 5.9 9.5 5.5 2.2 1.9 1 2 2.5 1.4 1.5 -1.4 0.5 5.4 1.3 3.5 3 5.2 8.4 3.3 2.4 5.1 2.8 5.3 5.1 3.7 4.1 3.2 2 4.3 7 8.5 Dry Bulb (C) 11 10.6 7 4.4 2.9 2.6 3.4 3.6 3.6 2.5 1 6.1 8.4 7 6 7 8.5 9.8 6.7 5.5 7.5 5.6 10.5 8.5 7.3 5.2 9 4.5 10.9 9.5 11 Wet Bulb (C) 10.4 10.4 5.5 3.6 1.4 1 2.8 3 2.9 2 0.6 5.6 7.1 5.7 4.7 5.5 7.8 8.7 5.4 4.5 7 3.1 8.5 7 6.1 4.4 6.6 3.5 10 9 9.4 RH (%) 92 97 78 87 74 72 90 89 88 91 92 92 82 81 80 78 90 87 86 84 93 61 74 79 87 87 68 84 89 93 80 Rainfall Total (mm) 3.5 5 1.6 0.5 0.7 3.3 3.1 0.4 _ _ tr 4.9 tr _ _ _ _ _ _ 2 2.7 _ _ _ 1.9 _ _ _ 0.2 0.6 _ Duration (hrs) 8.25 6 2 0.5 2.75 13 3.25 0.25 _ _ 0.5 2.5 _ _ _ _ _ _ _ 1.75 3.5 _ _ _ 2.5 _ _ _ 1 2 _ Acidity (pH) 6.64 6.5 6.65 _ 6.2 5.7 5.75 6.2 _ _ _ 5.89 _ _ _ _ _ _ _ 6.13 6.41 _ _ _ 5.87 _ _ _ _ 6.17 _ Winds (mph) Direction sw n se nw nw se se nw nw nw nw nw n nw sw nw ne ne ne nw sw nw w se n w sw w sw sw sw Speed (0830) 10 4 19 5 10 8 5 7 4 4 2 1 9 4 6 2 4 7 10 5 9 11 14 8 4 7 4 5 18 11 18 Speed (24 hrs) _ _ _ _ _ _ 8 5 5 3 1 4 4 3 4 4 3 12 7 6 13 7 5 5 4 5 3 14 10 7 7 Max Gust 44 36 48 35 27 27 35 21 27 21 14 18 17 20 15 14 16 39 23 29 42 27 29 26 21 21 14 33 40 22 22 Pressure (mb) At 0830hrs 1003 1004 985 987 994 998 999 1002 1003 1012 1014 1007 1011 1021 1025 1026 1026 1023 1024 1025 1003 1013 1010 1008 1000 1000 1005 1012 1009 1013 1014 From 0600hrs 0 -1 -2 +2 +1 0 -1 0 0 2 0 0 1 1 0 0 0 -2 -0.5 -0.5 -2 0 1 0 -1 1 2 1 0 1 1 Insolation Cloud types sc sc ac ac ac sc sc st sc st cc st cc cc c c c c c sc sc ac ac st st ac clear cs st st c, cs Cloud cover 8 8 4 6 6 9 8 8 7 8 4 8 1 1 1 4 2 7 8 8 8 4 6 8 8 5 0 3 8 8 4 Sunshine (hrs) 2.5 0 2.4 4.5 2.2 0 0 0 2.1 3.2 1.2 0.9 3.9 7.3 6.8 5 7.9 5.3 2 0.9 3.3 6.2 5.8 2 0 6.7 7 7.5 0.2 1.1 8.9 Visibility 6 8 8 8 7 4 6 5 5 6 7 3 7 7 7 7 6 6 6 7 7 9 7 6 5 7 7 5 7 5 7 Other Ppt Snow/sleet fall _ _ _ _ _ s _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Depth of snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Hail (<5mm) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Hail (>/=5mm) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Other Obs Thunder heard _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Lightning seen _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Ground Obs Grass Min 4.3 9.1 4.2 0.8 0.9 0.2 0.2 -0.2 0.9 2.1 -2.2 -0.6 6.2 1 2.9 3.1 3.1 3.1 5.9 2 4.4 1.4 1.6 1.7 3.3 4.6 3 1.9 3.8 6.8 8.2 Concrete Min 4.9 10.1 5.4 2.8 2.5 1 3.1 2.2 1.6 3.4 -1 0.6 6.4 2.2 4.8 4.8 4.8 4.8 7.2 3.1 5.8 3.2 3.5 7.2 5.8 4.9 4.9 4.5 5.3 7.4 8.8