October, 1999 Preliminary Local Climatological Data Duluth, MN National Weather Service |-Temperature-|--------Degree Days---------|-Precipitation-|-Snowfall-|----Wind----| (degrees F) (base 65 degrees F) (inches) (inches) (mph, deg) Heating Cooling Max Min Avg Dep HDD Seas Dep CDD Seas Dep Tot Tot Norm Tot Tot Avg Pk Dir from for for for for for Spd Gust at Norm Seas Seas Mon Mon Seas Pk Date | | | | | | | | | | | | | | | | | | 1 44 35 40 -9 25 468 -50 0 230 50 T M 0.10 T T 12.2 M M 2 44 28 36 -13 29 497 -37 0 230 50 0 M 0.20 0.0 T 9.9 M M 3 48 22 35 -14 30 527 -23 0 230 50 0 M 0.30 0.0 T 3.4 M M 4 52 35 44 -4 21 548 -19 0 230 50 0 M 0.40 0.0 T 9.8 M M 5 49 30 40 -8 25 573 -11 0 230 50 0.03 0.03 0.50 0.0 T 8.8 M M 6 43 24 34 -14 31 604 3 0 230 50 0.05 0.08 0.59 M M 9.8 M M 7 46 37 42 -5 23 627 8 0 230 50 0.53 0.63 0.68 0.0 T 11.5 M M 8 63 43 53 6 12 639 2 0 230 50 0 0.63 0.77 0.0 T 8.5 M M 9 72 38 55 8 10 649 -6 0 230 50 0 0.63 0.86 0.0 T 11.1 M M 10 63 41 52 6 13 662 -12 0 230 50 0 0.63 0.95 0.0 T 10.4 M M 11 59 33 46 0 19 681 -12 0 230 50 0 0.63 1.03 0.0 T 7.5 M M 12 59 41 50 4 15 696 -16 0 230 50 0 0.63 1.11 0.0 T 12.6 M M 13 48 36 42 -3 23 719 -13 0 230 50 0 0.63 1.19 0.0 T 9.0 M M 14 48 36 42 -3 23 742 -10 0 230 50 0.04 0.67 1.27 0.0 T 10.4 M M 15 51 37 44 0 21 763 -10 0 230 50 0.02 0.69 1.35 0.0 T 5.8 M M 16 46 35 41 -3 24 787 -7 0 230 50 T 0.69 1.43 0.0 T 12.0 M M 17 43 34 39 -5 26 813 -2 0 230 50 T 0.69 1.51 0.0 T 7.7 M M 18 40 34 37 -6 28 841 4 0 230 50 0.04 0.73 1.58 0.0 T 7.8 M M 19 41 28 35 -8 30 871 12 0 230 50 0.02 0.75 1.65 T T 10.6 M M 20 45 23 34 -8 31 902 20 0 230 50 0 0.75 1.72 0.0 T 11.2 M M 21 62 40 51 9 14 916 11 M M M T 0.75 1.79 0.0 T 18.0 M M 22 41 33 37 -4 28 944 15 0 230 50 T 0.75 1.86 T T 19.3 M M 23 42 24 33 -8 32 976 23 0 230 50 0 0.75 1.93 0.0 T 10.9 M M 24 53 23 38 -2 27 1003 25 0 230 50 0 0.75 2.00 0.0 T 11.5 M M 25 59 37 48 8 17 1020 17 0 230 50 0 0.75 2.07 0.0 T 17.0 M M 26 46 32 39 -1 26 1046 18 0 230 50 0 0.75 2.14 0.0 T 8.7 M M 27 52 33 43 4 22 1068 14 0 230 50 0 0.75 2.21 0.0 T 10.4 M M 28 53 30 42 3 23 1091 11 0 230 50 0 0.75 2.28 0.0 T 8.2 M M 29 53 35 44 6 21 1112 5 0 230 50 0.99 1.74 2.35 0.0 T 10.0 M M 30 57 41 49 11 16 1128 -6 0 230 50 0.63 2.37 2.42 0.0 T 8.6 M M 31 66 38 52 15 13 1141 -21 0 230 50 0 2.37 2.49 0.0 T 11.1 M M Monthly Summary for October ...OCTOBER 1999 CLIMATE SUMMARY... ...TEMPERATURE DATA... ...PRECIPITATION DATA... AVERAGE MONTHLY: 42.3 TOTAL FOR MONTH: 2.37 DEPARTURE FROM NORMAL: -1.4 DEPARTURE FROM NORMAL: -0.12 HIGHEST: 72 ON 9TH GREATEST IN A DAY: 0.99 ON 29TH LOWEST: 22 ON 3RD SNOWFALL, ICE PELLETS, HAIL MAX 32 OR BELOW: 0 TOTAL FOR MONTH: T INCHES MAX 90 OR ABOVE: 0 GREATEST SNOWFALL IN A DAY: T ON 22ND MIN 32 OR BELOW: 10 GREATEST SNOW DEPTH: 0 ON MIN 0 OR BELOW: 0 ...WEATHER, DAYS WITH... ...HEATING DEGREE DAYS... 0.01 INCH OR MORE PRECIP: 9 TOTAL THIS MONTH: 698 0.10 INCH OR MORE PRECIP: 3 DEPARTURE FROM NORMAL: 38 0.50 INCH OR MORE PRECIP: 3 SEASONAL TOTAL: 1141 1.00 INCH OR MORE PRECIP: 0 DEPARTURE FROM NORMAL: -21 ...COOLING DEGREE DAYS... ...PRESSURE DATA... TOTAL THIS MONTH: 0 HIGHEST SEA-LEVEL 30.43 ON 3RD DEPARTURE FROM NORMAL: 0 LOWEST SEA-LEVEL 29.52 ON 21ST SEASONAL TOTAL: 230 DEPARTURE FROM NORMAL: 50 ...REMARKS... RECORD LOW TEMPERATURE SET ON THE 3RD WITH A READING OF 22 DEGREES. THE OLD RECORD WAS 24 SET IN 1987. EXCEPT FOR THE END OF THE MONTH...OCTOBER 1999 WAS A FAIRLY DRY MONTH. THIS IS THE FIRST MONTH SINCE MARCH WITH BELOW NORMAL PRECIPIATION. ...END... SS