PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: WILLISTON ND MONTH: MAY YEAR: 2009 LATITUDE: 48 10 N LONGITUDE: 103 38 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 12Z AVG MX 2MIN DY MAX MIN AVG DEP HDD CDD WTR SNW DPTH SPD SPD DIR MIN PSBL S-S WX SPD DR ================================================================================ 1 56 33 45 -4 20 0 0.00 0.0 0 17.3 26 300 549 63 2 33 290 2 59 37 48 -2 17 0 0.00 0.0 0 16.4 26 300 803 92 6 33 310 3 66 26 46 -4 19 0 0.00 0.0 0 5.2 16 130 879 100 0 21 140 4 68 47 58 8 7 0 T 0.0 0 9.8 25 170 616 70 5 33 170 5 71 44 58 7 7 0 T 0.0 0 10.0 29 280 828 94 2 36 270 6 68 46 57 6 8 0 0.00 0.0 0 18.4 36 260 807 91 2 46 250 7 62 36 49 -3 16 0 0.05 0.0 0 6.4 18 360 710 80 2 3 23 310 8 56 30 43 -9 22 0 0.02 0.0 0 9.1 21 350 531 59 6 1 25 20 9 52 29 41 -11 24 0 0.00 0.0 0 5.3 15 350 553 62 6 24 20 10 62 40 51 -2 14 0 0.05 0.0 0 4.7 17 230 353 39 5 3 22 230 11 70 32 51 -2 14 0 0.28 0.0 0 4.6 22 260 680 75 2 13 33 270 12 66 43 55 2 10 0 0.00 0.0 0 6.7 18 270 376 42 1 24 260 13 52 31 42 -12 23 0 0.06 T 0 20.1 36 270 59 7 6 1 44 270 14 67 25 46 -8 19 0 T 0.0 0 8.4 25 280 650 71 4 1 33 280 15 48 30 39 -15 26 0 0.00 0.0 0 13.9 26 340 121 13 5 33 340 16 63 21 42 -13 23 0 0.00 0.0 0 5.0 14 200 807 88 1 18 170 17 76 43 60 5 5 0 0.00 0.0 0 8.9 21 260 591 64 0 28 260 18 72 40 56 1 9 0 0.00 0.0 0 11.7 24 60 874 95 0 32 60 19 74 36 55 -1 10 0 T 0.0 0 13.8 26 130 668 72 2 3 36 120 20 64 37 51 -5 14 0 T 0.0 0 10.3 26 300 379 41 3 37 290 21 66 26 46 -10 19 0 0.00 0.0 0 4.8 16 220 735 79 2 23 210 22 64 33 49 -8 16 0 0.00 0.0 0 9.0 25 360 901 97 0 40 330 23 71 29 50 -7 15 0 0.00 0.0 0 5.1 12 110 932 100 0 16 100 24 72 43 58 1 7 0 0.22 0.0 0 11.3 24 150 127 14 6 33 130 25 60 45 53 -5 12 0 0.00 0.0 0 12.2 23 120 8 1 9 1 29 120 26 71 36 54 -4 11 0 0.00 0.0 0 3.1 12 150 839 89 2 12 16 30 27 81 47 64 6 1 0 0.00 0.0 0 10.2 21 290 785 84 2 29 290 28 74 39 57 -2 8 0 0.00 0.0 0 7.1 20 40 742 79 2 24 40 29 83 45 64 5 1 0 T 0.0 0 9.2 25 340 702 74 4 32 350 30 84 35 60 1 5 0 T 0.0 0 6.2 17 210 915 97 0 23 210 31 79 55 67 7 0 2 T 0.0 0 11.3 28 10 477 50 1 33 360 ================================================================================ SM 2077 1139 402 2 0.68 T 295.5 18997 88 ================================================================================ AV 67.0 36.7 9.5 FASTST 613 67 3 MAX(MPH) MISC ----> # 36 260 # 46 250 ================================================================================ NOTES: # LAST OF SEVERAL OCCURRENCES COLUMN 17 PEAK WIND IN M.P.H. PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2 STATION: WILLISTON ND MONTH: MAY YEAR: 2009 LATITUDE: 48 10 N LONGITUDE: 103 38 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 51.9 TOTAL FOR MONTH: 0.68 1 = FOG OR MIST DPTR FM NORMAL: -2.7 DPTR FM NORMAL: -1.20 2 = FOG REDUCING VISIBILITY HIGHEST: 84 ON 30 GRTST 24HR 0.28 ON 11-11 TO 1/4 MILE OR LESS LOWEST: 21 ON 16 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: T 5 = HAIL GRTST 24HR T ON 13-13 6 = FREEZING RAIN OR DRIZZLE GRTST DEPTH: 0 7 = DUSTSTORM OR SANDSTORM: 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: 6 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 2 MIN 32 OR BELOW: 10 0.50 INCH OR MORE: 0 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 402 CLEAR (SCALE 0-3) 19 DPTR FM NORMAL 75 PTCLDY (SCALE 4-7) 11 TOTAL FM JUL 1 9574 CLOUDY (SCALE 8-10) 1 DPTR FM NORMAL 633 [CDD (BASE 65) ] TOTAL THIS MO. 2 DPTR FM NORMAL -18 [PRESSURE DATA] TOTAL FM JAN 1 2 HIGHEST SLP 30.40 ON 16 DPTR FM NORMAL -19 LOWEST SLP 29.40 ON 13 [REMARKS]