msichicago.org/summerbrain WEATHER STATION INSTRUMENTS 0 180 20 160 30 150 40 140 50 130 60 120 70 110 80 100 90 100 80 110 70 120 60 130 50 140 40 150 30 160 20 170 10 10 170 180 0 Angle Wind Speed (km/hr) 90° 0 95° 9 100° 13 105° 16 110° 19 115° 21 120° 24 125° 26 130° 29 135° 31 140° 34 145° 37 150° 41 155° 46 160° 52 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CM RAIN GAUGE WIND SPEED CHART ANEMOMETER