Preliminary Local Climatological Data (WS Form: F-6) Station: DAYTON OH Month: JUL Year: 1999 Temperature in F : :Pcpn :Snow: Wind :Sunshine: Sky :Pk Wnd ===================================== Columns ================================= 1 2 3 4 5 6a 6b 7 8 9 10 11 12 13 14 15 16 17 18 Dy Max Min Avg Dep HDD CDD Wtr Snw Dpth Avg Spd Dir Min Psbl S-S Wx Spd Dr =============================================================================== 1 81 67 74 1 0 9 0.53 0.0 0 13.8 25 210 M M M 8,1,3 33 240 2 84 71 78 5 0 13 0.01 0.0 0 8.4 16 210 M M M 1,8 18 220 3 90 75 83 9 0 18 0.00 0.0 0 11.5 20 230 M M M 1,8 25 230 4 91 75 83 9 0 18 0.00 0.0 0 10.7 18 260 M M M 1,8 22 220 5 90 74 82 8 0 17 0.00 0.0 0 10.7 18 230 M M M 1,8 24 240 6 91 70 81 7 0 16 T 0.0 0 11.1 22 250 M M M 8,1,3 25 320 7 84 60 72 -2 0 7 0.00 0.0 0 6.2 14 320 M M M 16 320 8 87 62 75 1 0 10 0.00 0.0 0 4.9 10 200 M M M 11 200 9 90 68 79 5 0 14 1.07 0.0 0 15.0 40 250 M M M 8,3,1 47 290 10 74 60 67 -7 0 2 0.00 0.0 0 11.2 21 10 M M M 1,8 25 20 11 77 54 66 -8 0 1 0.00 0.0 0 5.6 14 40 M M M 1 16 30 12 80 55 68 -6 0 3 0.00 0.0 0 8.3 15 30 M M M 17 50 13 82 59 71 -3 0 6 0.00 0.0 0 6.1 14 120 M M M 1 18 130 14 85 60 73 -1 0 8 0.00 0.0 0 3.4 13 240 M M M 8,1 22 230 15 87 67 77 3 0 12 0.00 0.0 0 7.1 15 240 M M M 8 22 210 16 89 68 79 4 0 14 0.00 0.0 0 7.2 16 250 M M M 8,1 18 220 17 90 69 80 5 0 15 T 0.0 0 7.9 25 270 M M M 8,1 29 270 18 84 70 77 2 0 12 0.01 0.0 0 8.1 16 280 M M M 8,1 18 280 19 91 67 79 4 0 14 0.06 0.0 0 7.8 26 260 M M M 1,8,3 31 300 20 88 73 81 6 0 16 0.01 0.0 0 5.5 18 230 M M M 1,3,8 24 230 21 95 73 84 9 0 19 0.00 0.0 0 9.2 23 50 M M M 1,8 25 50 22 96 74 85 10 0 20 0.47 0.0 0 11.9 23 280 M M M 1,8,3 28 290 23 92 73 83 8 0 18 0.10 0.0 0 6.6 23 250 M M M 1,8,3 28 240 24 90 74 82 8 0 17 0.00 0.0 0 7.7 13 300 M M M 8,1 15 290 25 94 72 83 9 0 18 0.00 0.0 0 7.4 17 30 M M M 1,8 20 30 26 92 69 81 7 0 16 0.31 0.0 0 6.6 23 330 M M M 3,1 30 20 27 89 70 80 6 0 15 0.00 0.0 0 6.9 11 220 M M M 1,8 13 230 28 88 70 79 5 0 14 0.25 0.0 0 9.5 28 290 M M M 3,1 36 310 29 91 73 82 8 0 17 0.00 0.0 0 10.7 17 250 M M M 1,8 20 250 30 98 78 88 14 0 23 0.00 0.0 0 9.1 15 280 M M M 1,8 18 270 31 96 75 86 12 0 21 0.00 0.0 0 11.8 26 250 M M M 32 240 =============================================================================== Sm 2736 2125 0 423 2.82 0.0 267.9 M M =============================================================================== Av 88.3 68.5 8.6 Fastst Psbl % M Max(mph) Misc ----> 40 250 M M 47 290 =============================================================================== Notes: # Last of several occurrences Column 17 Peak Wind in M.P.H. Preliminary Local Climatological Data (WS Form: F-6) , Page 2 Station: DAYTON OH Month: JUL Year: 1999 ** Temperature Data ** ** Precipitation Data ** SYMBOLS USED IN COLUMN 16 Average Monthly: 78.4 Total for Month: 2.82 1 = FOG Dptr fm normal: +4.2 Dptr fm normal: -0.72 2 = FOG REDUCING VISIBILITY Highest: 98 on 30 Grtst 24hr 1.07 on 9 TO 1/4 MILE OR LESS Lowest: 54 on 11 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS Total month: 0.0 Inches 5 = HAIL Grtst 24hr ____ on ____ 6 = GLAZE OR RIME Grtst depth: ____ on ____ 7 = BLOWING DUST OR SAND: VSBY 1/2 MILE OR LESS 8 = SMOKE OR HAZE * No. of Days with * * WEATHER - Days with * 9 = BLOWING SNOW x = TORNADO Max 32 or below: 0 0.01 inch or more: 11 Max 90 or above: 16 0.10 inch or more: 7 Min 32 or below: 0 0.50 inch or more: 2 Min 0 or below: 0 1.00 inch or more: 1 ** HDD (Base 65) ** Total this Mo. 0 Dptr fm normal +0 Seasonal total 0 Dptr fm normal +0 ** CDD (Base 65) ** Total this Mo. 423 Dptr fm normal +138 ** Pressure Data ** Seasonal total 730 Highest SLP 30.26 on 11 Dptr fm normal +189 Lowest SLP 0 on ____ =============================================================================== ------------------