CXUS55 KBYZ 121100 CF6BIL PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: BILLINGS MT MONTH: DECEMBER YEAR: 2025 LATITUDE: 45 47 N LONGITUDE: 108 32 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 36 15 26 -5 39 0 0.00 0.0 6 17.6 25 230 M M 6 33 250 2 38 29 34 3 31 0 0.02 0.3 5 11.5 22 330 M M 10 1 32 330 3 33 23 28 -2 37 0 T T 3 7.1 16 250 M M 6 1 24 250 4 39 23 31 1 34 0 T T 2 14.7 23 240 M M 9 29 240 5 40 32 36 6 29 0 0.09 0.6 1 10.3 17 240 M M 8 12 23 250 6 36 18 27 -2 38 0 0.07 0.2 1 7.8 20 60 M M 10 12 33 20 7 42 25 34 5 31 0 T 0.0 1 14.0 22 270 M M 8 28 280 8 45 33 39 10 26 0 T 0.0 T 13.7 23 280 M M 8 33 290 9 57 33 45 16 20 0 T 0.0 0 16.4 44 330 M M 9 59 330 10 59 32 46 18 19 0 0.01 T 0 8.8 22 240 M M 9 30 270 11 61 13 37 9 28 0 0.37 4.2 0 14.3 30 290 M M 9 19 45 290 ================================================================================ SM 486 276 332 0 0.56 5.3 136.2 M 92 ================================================================================ AV 44.2 25.1 12.4 FASTST M M 8 MAX(MPH) MISC ----> 44 330 59 330 ================================================================================ NOTES: # LAST OF SEVERAL OCCURRENCES COLUMN 17 PEAK WIND IN M.P.H. PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2 STATION: BILLINGS MT MONTH: DECEMBER YEAR: 2025 LATITUDE: 45 47 N LONGITUDE: 108 32 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 34.6 TOTAL FOR MONTH: 0.56 1 = FOG OR MIST DPTR FM NORMAL: 5.2 DPTR FM NORMAL: 0.36 2 = FOG REDUCING VISIBILITY HIGHEST: 61 ON 11 GRTST 24HR 0.37 ON 11-11 TO 1/4 MILE OR LESS LOWEST: 13 ON 11 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 5.3 INCHES 5 = HAIL GRTST 24HR 4.2 ON 11-11 6 = FREEZING RAIN OR DRIZZLE GRTST DEPTH: 7 ON M 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: 5 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 1 MIN 32 OR BELOW: 9 0.50 INCH OR MORE: 0 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 332 CLEAR (SCALE 0-3) 0 DPTR FM NORMAL -59 PTCLDY (SCALE 4-7) 4 TOTAL FM JUL 1 1561 CLOUDY (SCALE 8-10) 7 DPTR FM NORMAL -432 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL 0 [PRESSURE DATA] TOTAL FM JAN 1 659 HIGHEST SLP M ON M DPTR FM NORMAL -3 LOWEST SLP 29.52 ON 9 [REMARKS]