ZCZC CLELCDDAY TTAA00 KCVG 010557 PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: DAYTON OH MONTH: APR 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 62 52 57 11 8 0 0.19 0.0 0 7.9 14 180 M M M 1,8 18 180 2 71 54 63 16 2 0 0.00 0.0 0 8.6 16 190 M M M 1,8 18 190 3 72 52 62 15 3 0 0.21 0.0 0 9.9 26 230 M M M 1,8,2 30 230 4 72 48 60 13 5 0 0.01 0.0 0 12.8 26 260 M M M 2,1 30 260 5 66 41 54 6 11 0 0.01 0.0 0 9.6 21 110 M M M 2,1,8 25 110 6 71 50 61 13 4 0 0.10 0.0 0 18.4 37 260 M M M 1 44 230 7 69 42 56 8 9 0 0.00 0.0 0 10.4 20 210 M M M 25 220 8 77 51 64 15 1 0 T 0.0 0 9.4 15 170 M M M 8 21 170 9 68 40 54 5 11 0 0.38 0.0 0 16.7 41 270 M M M 8,1,3 59 280 10 60 37 49 0 16 0 T 0.0 0 12.8 21 130 M M M 3 23 130 11 66 43 55 5 10 0 0.05 0.0 0 18.4 34 250 M M M 3,8,1 39 270 12 54 37 46 -4 19 0 0.01 0.0 0 12.7 18 300 M M M 1 8 29 290 13 60 35 48 -2 17 0 0.00 0.0 0 7.6 14 360 M M M 8 18 330 14 65 38 52 1 13 0 0.00 0.0 0 5.0 13 110 M M M 8 15 110 15 57 46 52 1 13 0 0.56 0.0 0 14.6 29 230 M M M 1 34 230 16 48 37 43 -8 22 0 0.33 0.0 0 26.2 43 220 M M M 1 52 230 17 44 36 40 -12 25 0 0.29 0.0 0 16.4 25 240 M M M 1 31 230 18 51 40 46 -6 19 0 0.07 0.0 0 12.6 29 240 M M M 1,8 33 240 19 61 36 49 -3 16 0 0.01 0.0 0 6.3 18 310 M M M 1,8 23 320 20 59 39 49 -4 16 0 0.01 0.0 0 6.7 13 10 M M M 1,2,8 17 350 21 73 47 60 7 5 0 0.96 0.0 0 11.3 23 140 M M M 1 25 140 22 78 61 70 17 0 5 0.00 0.0 0 16.3 31 220 M M M 40 190 23 74 40 57 3 8 0 0.18 0.0 0 16.7 29 10 M M M 3,1,8 36 260 24 59 33 46 -8 19 0 0.00 0.0 0 10.9 18 10 M M M 25 10 25 63 30 47 -7 18 0 0.00 0.0 0 5.8 13 90 M M M 15 100 26 70 40 55 0 10 0 0.00 0.0 0 5.1 13 70 M M M 14 70 27 65 46 56 1 9 0 0.03 0.0 0 10.5 18 70 M M M 22 70 28 62 47 55 -1 10 0 0.13 0.0 0 11.0 18 70 M M M 1,8 21 80 29 67 40 54 -2 11 0 0.00 0.0 0 13.7 26 80 M M M 33 70 30 70 40 55 -1 10 0 0.00 0.0 0 11.6 21 20 M M M 25 40 =============================================================================== SM 1934 1278 340 5 3.53 0.0 355.9 M M =============================================================================== AV 64.5 42.6 11.9 FASTST PSBL % M MAX(MPH) MISC ----> 43 220 M M 59 280 =============================================================================== 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: 1999 ** TEMPERATURE DATA ** ** PRECIPITATION DATA ** SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 53.5 TOTAL FOR MONTH: 3.53 1 = FOG DPTR FM NORMAL: +2.3 DPTR FM NORMAL: +0.07 2 = FOG REDUCING VISIBILITY HIGHEST: 78 ON 22 GRTST 24HR 0.97 ON 20-21 TO 1/4 MILE OR LESS LOWEST: 30 ON 25 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: 18 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 10 MIN 32 OR BELOW: 1 0.50 INCH OR MORE: 2 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 ** HDD (BASE 65) ** TOTAL THIS MO. 340 DPTR FM NORMAL -74 SEASONAL TOTAL 4949 DPTR FM NORMAL -563 ** CDD (BASE 65) ** TOTAL THIS MO. 5 DPTR FM NORMAL +5 ** PRESSURE DATA ** SEASONAL TOTAL 5 HIGHEST SLP 30.40 ON 24 DPTR FM NORMAL +5 LOWEST SLP ON =============================================================================== ------------------