WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
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500 CXUS56 KTFX 011110 CF6HLN PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: HELENA MT MONTH: MAY YEAR: 2021 LATITUDE: 46 35 N LONGITUDE: 112 0 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 74 54 64 15 1 0 0.00 0.0 0 13.4 30 340 M M 1 38 320 2 54 39 47 -3 18 0 0.04 0.0 0 10.6 23 10 M M 7 31 310 3 62 32 47 -3 18 0 0.00 0.0 0 5.5 22 270 M M 2 28 260 4 64 45 55 5 10 0 0.00 0.0 0 12.4 26 280 M M 7 34 280 5 67 39 53 3 12 0 0.00 0.0 0 6.1 14 320 M M 3 21 310 6 78 36 57 6 8 0 0.00 0.0 0 5.1 13 60 M M 0 19 50 7 65 43 54 3 11 0 0.11 0.0 0 8.9 26 280 M M 7 36 270 8 51 39 45 -7 20 0 0.00 0.0 0 18.4 31 280 M M 8 46 280 9 50 39 45 -7 20 0 0.05 0.0 0 7.5 21 270 M M 9 30 280 10 57 36 47 -5 18 0 0.00 0.0 0 4.7 10 250 M M 9 12 360 11 63 33 48 -5 17 0 0.03 0.0 0 6.9 28 280 M M 3 8 37 280 12 67 34 51 -2 14 0 0.00 0.0 0 4.3 15 100 M M 2 21 80 13 73 46 60 7 5 0 0.00 0.0 0 7.4 23 280 M M 6 34 310 14 72 46 59 5 6 0 T 0.0 0 6.8 26 290 M M 2 3 34 290 15 75 41 58 4 7 0 0.00 0.0 0 3.8 22 350 M M 1 29 360 16 80 43 62 8 3 0 0.00 0.0 0 2.1 12 40 M M 0 17 30 17 86 43 65 11 0 0 0.00 0.0 0 3.2 16 290 M M 0 24 290 18 75 49 62 7 3 0 0.00 0.0 0 12.1 31 280 M M 0 44 270 19 56 37 47 -8 18 0 0.14 0.0 0 9.5 21 350 M M 7 29 310 20 39 28 34 -21 31 0 0.64 0.8 0 9.4 18 280 M M 10 128 23 270 21 33 27 30 -26 35 0 0.44 7.0 2 9.1 16 340 M M 10 12 21 340 22 43 29 36 -20 29 0 0.00 0.0 6 6.6 12 270 M M 10 16 320 23 46 33 40 -16 25 0 0.44 0.2 0 5.4 13 270 M M 10 1 17 190 24 62 42 52 -4 13 0 0.00 0.0 0 10.5 26 280 M M 7 38 290 25 68 49 59 2 6 0 0.26 0.0 0 6.3 20 240 M M 8 1 27 230 26 56 45 51 -6 14 0 0.11 0.0 0 6.9 16 340 M M 9 21 330 27 77 38 58 1 7 0 0.00 0.0 0 5.0 17 160 M M 1 12 26 180 28 65 47 56 -1 9 0 0.00 0.0 0 14.0 26 300 M M 1 44 260 29 68 39 54 -4 11 0 0.00 0.0 0 4.1 14 240 M M 1 19 250 30 76 39 58 0 7 0 0.00 0.0 0 3.7 12 40 M M 0 15 30 31 82 44 63 5 2 0 0.00 0.0 0 5.6 20 290 M M 1 31 280 ================================================================================ SM 1984 1234 398 0 2.26 8.0 235.3 M 142 ================================================================================ AV 64.0 39.8 7.6 FASTST M M 5 MAX(MPH) MISC ----> # 31 280 46 280 ================================================================================ NOTES: # LAST OF SEVERAL OCCURRENCES COLUMN 17 PEAK WIND IN M.P.H. PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2 STATION: HELENA MT MONTH: MAY YEAR: 2021 LATITUDE: 46 35 N LONGITUDE: 112 0 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 51.9 TOTAL FOR MONTH: 2.26 1 = FOG OR MIST DPTR FM NORMAL: -2.0 DPTR FM NORMAL: 0.31 2 = FOG REDUCING VISIBILITY HIGHEST: 86 ON 17 GRTST 24HR 0.74 ON 19-20 TO 1/4 MILE OR LESS LOWEST: 27 ON 21 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 8.0 INCHES 5 = HAIL GRTST 24HR 7.0 ON 21-21 6 = FREEZING RAIN OR DRIZZLE GRTST DEPTH: 6 ON 22 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: 10 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 7 MIN 32 OR BELOW: 4 0.50 INCH OR MORE: 1 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 398 CLEAR (SCALE 0-3) 15 DPTR FM NORMAL 48 PTCLDY (SCALE 4-7) 9 TOTAL FM JUL 1 6935 CLOUDY (SCALE 8-10) 7 DPTR FM NORMAL -422 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL -7 [PRESSURE DATA] TOTAL FM JAN 1 0 HIGHEST SLP 30.42 ON 21 DPTR FM NORMAL -7 LOWEST SLP 29.67 ON 17 [REMARKS] #FINAL-05-21#