ANNUAL CLIMATOLOGICAL SUMMARY for 2011 NAME: Chattanooga COUNTY: Hamilton STATE: TN ELEV: 689 ft LAT: 35.0 N LONG: 85.2 W TEMPERATURE (F), RAIN (in), WIND SPEED (mph) DEP HEAT COOL MEAN MEAN FROM DEG DEG MAX MAX MIN MIN YR MO MAX MIN MEAN NORM DAYS DAYS HI DATE LOW DATE >=90 <=32 <=32 <=0 ---------------------------------------------------------------------------------------------- 2011 01 44.5 29.6 36.3 5.9 753.5 0.2 68.0 29 12.2 14 0 4 21 0 2011 02 57.8 36.5 47.8 -1.5 445.6 10.8 75.2 28 0.0 09 0 0 9 1 2011 03 62.3 45.6 54.0 0.8 284.9 26.2 82.4 22 33.8 12 0 0 0 0 2011 04 74.9 45.9 63.1 -1.3 142.9 97.8 87.8 09 0.0 27 0 0 4 4 2011 05 80.3 53.2 69.7 0.4 65.1 165.4 95.0 31 0.0 26 4 0 3 3 2011 06 90.7 60.4 78.7 -1.4 19.2 395.6 96.8 05 0.0 22 18 0 4 4 2011 07 91.3 61.9 81.2 -1.5 19.0 481.2 96.8 27 0.0 30 23 0 5 5 2011 08 93.5 72.8 83.2 -3.9 0.8 478.2 100.4 03 59.0 31 25 0 0 0 2011 09 79.0 55.1 70.0 3.4 41.2 172.0 98.6 03 0.0 22 3 0 3 3 2011 10 69.8 49.0 58.9 3.3 206.4 50.1 84.2 17 33.8 31 0 0 0 0 2011 11 62.7 43.5 53.0 -1.8 322.0 8.1 71.6 21 28.4 18 0 0 4 0 2011 12 55.6 37.7 46.2 -1.3 494.2 0.8 68.0 05 28.4 29 0 0 10 0 ---------------------------------------------------------------------------------------------- 71.9 49.3 62.0 -0.1 2794.8 1886.4 100.4 MAY 0.0 SEP 73 4 63 20 PRECIPITATION (in) DEP. MAX ---DAYS OF RAIN--- FROM OBS. OVER YR MO TOTAL NORM DAY DATE 0.01 0.10 1.00 --------------------------------------------------------- 2011 01 67.31 63.51 0.40 01 7 2 0 2011 02 82.91 78.41 0.46 28 7 3 0 2011 03 80.99 76.29 0.51 09 9 5 0 2011 04 68.77 64.77 0.53 15 8 6 0 2011 05 61.83 58.33 0.19 13 3 2 0 2011 06 54.29 51.39 0.28 15 7 4 0 2011 07 77.48 72.98 0.75 14 6 4 0 2011 08 58.17 54.57 0.01 21 1 0 0 2011 09 57.28 53.78 0.83 05 7 3 0 2011 10 51.73 48.53 0.14 13 6 3 0 2011 11 59.48 55.98 0.22 03 9 3 0 2011 12 88.32 83.22 0.46 22 8 4 0 --------------------------------------------------------- 808.57 777.87 0.83 SEP 78 39 0 WIND SPEED (mph) DOM YR MO AVG HI DATE DIR ---------------------------------- 2011 12 5.2 38.0 07 SE 2011 12 7.0 47.2 25 SE 2011 12 5.7 38.0 09 ESE 2011 12 6.5 35.7 04 SE 2011 12 4.3 26.5 25 ESE 2011 12 4.3 49.5 21 E 2011 12 3.0 28.8 13 E 2011 12 4.7 28.8 21 ESE 2011 12 3.9 49.5 05 E 2011 12 4.3 32.2 14 E 2011 12 5.3 28.8 10 SE 2011 12 3.9 32.2 27 ESE ---------------------------------- 4.8 49.5 SEP ESE