PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: RICHMOND MONTH: APRIL YEAR: 2004 LATITUDE: 37 30 N LONGITUDE: 77 20 W TEMPERATURE IN F: :PCPN: SNOW: WIND :SUNSHINE: SKY :PK WND ================================================================================ 1 2 3 4 5 6A 6B 7 8 9 10 11 12 13 14 15 16 17 18 AVG MX 2MIN DY MAX MIN AVG DEP HDD CDD WTR SNW DPTH SPD SPD DIR MIN PSBL S-S WX SPD DR ================================================================================ 1 57 46 52 -1 13 0 0.36 0.0 0 9.3 21 300 M M 10 1 25 320 2 48 44 46 -7 19 0 0.09 0.0 0 9.3 18 300 M M 10 1 22 330 3 59 43 51 -2 14 0 0.02 0.0 0 7.3 18 320 M M 8 1 22 310 4 57 40 49 -5 16 0 0.00 0.0 0 16.9 33 310 M M 5 40 310 5 52 38 45 -9 20 0 0.00 0.0 0 16.3 28 310 M M 0 35 310 6 64 30 47 -7 18 0 0.00 0.0 0 6.5 17 310 M M 1 22 290 7 78 39 59 4 6 0 0.00 0.0 0 7.6 24 270 M M 6 30 270 8 71 50 61 6 4 0 0.00 0.0 0 7.1 17 360 M M 6 20 360 9 71 42 57 2 8 0 T 0.0 0 7.1 18 360 M M 3 18 24 360 10 61 42 52 -4 13 0 T 0.0 0 5.0 12 110 M M 8 1 14 60 11 52 44 48 -8 17 0 0.04 0.0 0 9.0 18 20 M M 10 1 23 20 12 50 44 47 -9 18 0 1.23 0.0 0 9.3 16 90 M M 10 1 21 80 13 59 45 52 -4 13 0 0.33 0.0 0 6.4 20 310 M M 9 123 24 290 14 55 45 50 -7 15 0 0.63 0.0 0 8.1 22 340 M M 10 12 30 330 15 66 44 55 -2 10 0 0.00 0.0 0 13.9 29 10 M M 2 35 360 16 70 38 54 -3 11 0 0.00 0.0 0 4.3 12 250 M M 0 8 14 280 17 84 46 65 7 0 0 0.00 0.0 0 10.0 21 220 M M 4 8 25 220 18 89 57 73 15 0 8 0.00 0.0 0 8.9 15 200 M M 4 18 200 19 90 62 76 18 0 11 0.00 0.0 0 12.7 25 220 M M 7 29 230 20 87 58 73 15 0 8 0.00 0.0 0 6.1 16 110 M M 6 23 220 21 87 61 74 15 0 9 0.02 0.0 0 11.1 22 200 M M 9 18 25 190 22 85 62 74 15 0 9 0.00 0.0 0 13.0 22 210 M M 7 29 230 23 87 66 77 18 0 12 0.17 0.0 0 9.2 28 330 M M 6 1 35 310 24 78 59 69 9 0 4 0.01 0.0 0 7.1 18 30 M M 6 18 22 20 25 75 53 64 4 1 0 0.00 0.0 0 9.3 17 170 M M 9 22 150 26 78 57 68 8 0 3 0.44 0.0 0 10.4 28 330 M M 9 1 33 310 27 70 45 58 -2 7 0 0.08 0.0 0 10.2 25 320 M M 6 1 39 280 28 67 37 52 -9 13 0 0.00 0.0 0 5.7 14 280 M M 0 18 270 29 77 48 63 2 2 0 0.00 0.0 0 9.9 20 200 M M 5 24 210 30 78 56 67 6 0 2 0.00 0.0 0 10.4 18 190 M M 8 22 200 ================================================================================ SM 2102 1441 238 66 3.42 0.0 277.4 M 184 ================================================================================ AV 70.1 48.0 9.2 FASTST PSBL % 6 MAX(MPH) MISC ----> 33 310 40 310 ================================================================================ NOTES: # LAST OF SEVERAL OCCURRENCES COLUMN 17 PEAK WIND IN M.P.H. PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2 STATION: RICHMOND MONTH: APRIL YEAR: 2004 LATITUDE: 37 30 N LONGITUDE: 77 20 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 59.0 TOTAL FOR MONTH: 3.42 1 = FOG DPTR FM NORMAL: 2.0 DPTR FM NORMAL: 0.24 2 = FOG REDUCING VISIBILITY HIGHEST: 90 ON 19 GRTST 24HR 1.23 ON 12-12 TO 1/4 MILE OR LESS LOWEST: 30 ON 6 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 0.0 INCH 5 = HAIL GRTST 24HR 0.0 6 = GLAZE OR RIME GRTST DEPTH: 0 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: 12 MAX 90 OR ABOVE: 1 0.10 INCH OR MORE: 6 MIN 32 OR BELOW: 1 0.50 INCH OR MORE: 2 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1 [HDD (BASE 65) ] TOTAL THIS MO. 238 CLEAR (SCALE 0-3) 6 DPTR FM NORMAL -16 PTCLDY (SCALE 4-7) 12 SEASONAL TOTAL 3776 CLOUDY (SCALE 8-10) 12 DPTR FM NORMAL -55 [CDD (BASE 65) ] TOTAL THIS MO. 66 DPTR FM NORMAL 33 [PRESSURE DATA] SEASONAL TOTAL 69 HIGHEST SLP 30.45 ON 29 DPTR FM NORMAL 27 LOWEST SLP 29.50 ON 1 [REMARKS]