MONTHLY CLIMATOLOGICAL SUMMARY for SEP. 2004 NAME: Herndon CITY: Herndon STATE: KY ELEV: 535 ft LAT: 36° 44' 10" N LONG: 87° 35' 55" W TEMPERATURE (°F), RAIN (in), WIND SPEED (mph) HEAT COOL AVG MEAN DEG DEG WIND DOM DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN SPEED HIGH TIME DIR ------------------------------------------------------------------------------------ 1 69.6 84.3 2:30p 54.5 4:00a 2.7 7.3 0.00 2.4 19.0 12:00p ENE 2 69.3 81.4 1:00p 60.4 6:30a 1.0 5.3 0.21 0.7 10.0 2:30p ESE 3 73.5 81.4 3:30p 64.5 12:30a 0.0 8.5 0.00 1.0 8.0 9:30a S 4 73.5 84.5 4:30p 65.0 12:00m 0.0 8.5 0.00 0.9 8.0 1:30p SE 5 73.7 87.0 3:00p 61.2 6:30a 0.7 9.4 0.00 1.5 13.0 3:00p SE 6 76.3 90.7 3:30p 62.1 6:00a 0.3 11.6 0.00 1.8 14.0 11:00a N 7 72.9 79.0 2:00p 67.9 5:30a 0.0 7.9 0.00 6.1 20.0 4:00p N 8 69.7 74.9 3:00p 64.5 8:30a 0.0 4.7 0.00 5.4 22.0 1:00p N 9 67.5 82.4 3:30p 55.1 7:00a 2.8 5.4 0.00 1.4 18.0 1:00p N 10 66.7 83.8 3:30p 52.5 5:00a 4.4 6.1 0.01 1.1 14.0 1:30p NE 11 69.7 87.4 2:30p 53.6 6:00a 3.1 7.8 0.00 0.8 16.0 2:00p N 12 67.4 77.9 2:00p 62.0 7:00a 0.4 2.8 3.61 1.7 18.0 9:00a SSE 13 70.1 80.9 4:30p 63.2 7:00a 0.1 5.2 0.36 1.5 18.0 7:00p SE 14 72.2 83.2 3:30p 65.0 11:00p 0.0 7.2 0.00 2.5 14.0 9:30a SSE 15 73.4 85.9 4:00p 62.9 2:30a 0.3 8.7 0.00 2.8 17.0 12:30p S 16 73.3 79.2 2:30p 67.3 12:30a 0.0 8.3 0.07 3.7 19.0 7:00p E 17 71.1 82.4 3:30p 55.3 12:00m 1.0 7.2 0.00 5.3 19.0 1:00p N 18 63.9 82.0 4:30p 49.4 6:30a 5.9 4.9 0.00 1.5 12.0 10:00a NE 19 64.4 81.6 3:00p 48.3 6:30a 5.5 5.0 0.00 3.4 20.0 1:00p E 20 62.4 80.5 3:30p 46.4 6:00a 7.2 4.5 0.00 1.5 12.0 4:30p SSE 21 62.4 79.0 4:00p 48.2 6:00a 6.6 4.0 0.00 1.2 12.0 10:00a SE 22 64.0 82.2 3:30p 48.0 5:30a 6.2 5.3 0.00 1.5 13.0 2:30p SSE 23 66.5 82.0 1:30p 51.4 7:00a 4.4 5.8 0.00 1.0 12.0 1:30p S 24 69.9 82.6 1:30p 57.6 6:30a 1.8 6.7 0.00 0.5 7.0 1:30p NE 25 70.0 84.0 2:00p 58.6 12:00m 0.8 5.8 0.00 1.5 16.0 3:00p NE 26 66.3 81.8 3:30p 52.5 7:00a 3.9 5.2 0.00 2.1 17.0 12:30p NE 27 65.9 80.9 2:30p 52.3 7:30a 3.8 4.7 0.00 2.4 14.0 12:00p N 28 66.6 80.1 2:00p 54.1 7:00a 3.2 4.9 0.00 3.6 21.0 8:00p N 29 56.5 71.1 4:00p 45.8 7:30a 9.4 0.9 0.00 1.8 20.0 2:30p N 30 56.7 74.6 4:00p 40.8 6:30a 10.2 1.8 0.00 1.4 13.0 10:30a ENE ------------------------------------------------------------------------------------- 68.2 90.7 6 40.8 30 85.7 181.4 4.26 2.1 22.0 8 N Max >= 90.0: 1 Max <= 32.0: 0 Min <= 32.0: 0 Min <= 0.0: 0 Max Rain: 3.61 ON 09/12/04 Days of Rain: 4 (>.01 in) 3 (>.1 in) 1 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration