Preliminary Local Climatological Data (WS Form: F-6) Station: DAYTON OH Month: APR Year: 1998 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 61 46 54 8 11 0 T 0.0 0 15.9 33 230 M M M 39 230 2 55 40 48 1 17 0 0.00 0.0 0 11.9 23 260 M M M 29 250 3 57 34 46 -1 19 0 0.02 0.0 0 12.5 28 30 M M M 1,8 32 30 4 51 35 43 -4 22 0 0.09 0.0 0 17.0 29 10 M M M 1 37 10 5 56 29 43 -5 22 0 0.00 0.0 0 5.1 13 280 M M M 1,8 16 320 6 62 35 49 1 16 0 0.00 0.0 0 4.9 11 80 M M M 14 80 7 63 41 52 4 13 0 0.25 0.0 0 11.9 21 290 M M M 1,3,8 23 300 8 73 50 62 13 3 0 0.46 0.0 0 13.7 33 230 M M M 8,1,3 39 230 9 57 41 49 0 16 0 1.44 0.0 0 19.9 36 270 M M M 1,3 43 260 10 54 40 47 -2 18 0 T 0.0 0 15.5 29 10 M M M 1 34 360 11 60 35 48 -2 17 0 0.00 0.0 0 7.2 15 300 M M M 20 270 12 67 42 55 5 10 0 0.00 0.0 0 9.8 18 140 M M M 22 140 13 70 47 59 9 6 0 0.05 0.0 0 16.1 32 200 M M M 40 200 14 64 49 57 6 8 0 0.03 0.0 0 15.0 25 170 M M M 1 32 180 15 63 44 54 3 11 0 0.36 0.0 0 11.0 29 160 M M M 1,8,3 33 170 16 72 48 60 9 5 0 1.96 0.0 0 12.7 21 310 M M M 1,3,2 25 190 17 55 40 48 -4 17 0 0.00 0.0 0 11.3 20 310 M M M 23 330 18 56 38 47 -5 18 0 T 0.0 0 8.7 17 100 M M M 20 70 19 50 40 45 -7 20 0 0.28 0.0 0 13.4 23 10 M M M 1 28 10 20 64 34 49 -4 16 0 0.00 0.0 0 5.8 11 150 M M M 1,8 15 320 21 61 44 53 0 12 0 0.00 0.0 0 6.9 13 130 M M M 8 18 80 22 63 47 55 2 10 0 0.16 0.0 0 6.7 20 150 M M M 1,8,3 23 140 23 67 46 57 3 8 0 T 0.0 0 8.1 20 300 M M M 1,8 23 290 24 73 46 60 6 5 0 0.00 0.0 0 13.1 23 270 M M M 30 290 25 70 49 60 6 5 0 0.18 0.0 0 9.5 25 240 M M M 1 30 240 26 67 43 55 0 10 0 0.40 0.0 0 14.7 26 10 M M M 1,8,3 30 10 27 56 36 46 -9 19 0 0.00 0.0 0 13.7 22 30 M M M 25 60 28 65 34 50 -6 15 0 T 0.0 0 9.7 20 70 M M M 23 70 29 64 52 58 2 7 0 0.18 0.0 0 10.8 18 200 M M M 1 23 200 30 63 55 59 3 6 0 0.33 0.0 0 8.2 23 190 M M M 1,2 28 190 =============================================================================== Sm 1859 1260 382 0 6.19 0.0 340.7 M M =============================================================================== Av 62.0 42.0 11.4 Fastst Psbl % M Max(mph) Misc ----> 36 270 M M 43 260 =============================================================================== 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: APR Year: 1998 ** Temperature Data ** ** Precipitation Data ** SYMBOLS USED IN COLUMN 16 Average Monthly: 52.0 Total for Month: 6.19 1 = FOG Dptr fm normal: +0.8 Dptr fm normal: +2.73 2 = FOG REDUCING VISIBILITY Highest: 73 on 24 Grtst 24hr 2.26 on 15-16 TO 1/4 MILE OR LESS Lowest: 29 on 5 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: 15 Max 90 or above: 0 0.10 inch or more: 11 Min 32 or below: 1 0.50 inch or more: 2 Min 0 or below: 0 1.00 inch or more: 2 ** HDD (Base 65) ** Total this Mo. 382 Dptr fm normal -32 Seasonal total 4954 Dptr fm normal -558 ** CDD (Base 65) ** Total this Mo. 0 Dptr fm normal +0 ** Pressure Data ** Seasonal total 19 Highest SLP 30.38 on 28 Dptr fm normal +19 Lowest SLP 29.24 on 09 =============================================================================== ------------------