August, 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 72 52 62 M 3 42 M 0 172 M 0 0 M M M M M M 2 71 50 61 -5 4 45 -19 0 172 58 0.03 0.03 0.24 M M 8.8 M M 3 75 57 66 0 0 45 -21 1 173 56 0.14 0.17 0.36 M M 7.4 18 M 4 74 51 63 -3 2 47 -21 0 173 53 0.16 0.33 0.48 M M 7.9 M M 5 79 50 65 -1 0 47 -23 0 173 50 0.08 0.41 0.60 0.0 0.0 7.8 M M 6 73 51 62 -4 3 50 -22 0 173 47 0 0.41 0.72 M M 6.6 M M 7 75 54 65 -1 0 50 -24 0 173 44 0.20 0.61 0.84 M M 10.4 M M 8 68 50 59 -7 6 56 -20 0 173 41 0 0.61 0.96 0.0 0.0 5.5 M M 9 63 53 58 -8 7 63 -15 0 173 38 0.49 1.10 1.09 0.0 0.0 8.0 M M 10 75 60 68 3 0 63 -18 3 176 38 0 1.10 1.22 M M 9.9 M M 11 73 59 66 1 0 63 -21 1 177 36 T 1.10 1.35 M M 7.7 M M 12 66 54 60 -5 5 68 -19 0 177 33 3.11 4.21 1.48 M M 17.0 M M 13 70 49 60 -5 5 73 -17 0 177 30 0.03 4.24 1.61 M M 9.8 M M 14 72 45 59 -6 6 79 -14 0 177 27 0 4.24 1.74 M M 5.1 M M 15 71 56 64 0 1 80 -16 0 177 25 0.41 4.65 1.87 M M 13.0 M M 17 72 58 65 1 0 80 -22 0 181 25 0.01 4.66 2.13 M M 7.7 M M 18 62 53 58 -6 7 87 -18 0 181 23 1.55 6.21 2.26 M M 8.6 M M 19 69 49 59 -4 6 93 -16 0 181 21 0 6.21 2.39 0.0 0.0 4.5 M M 20 75 53 64 1 1 94 -19 0 181 19 0 6.21 2.52 M M 3.9 M M 21 77 59 68 5 0 94 -23 3 184 20 0 6.21 2.65 M M 4.8 M M 22 71 61 66 3 0 94 -27 1 185 19 0.02 6.23 2.78 M M 6.4 M M 23 73 60 67 5 0 94 -32 2 187 19 0.80 7.03 2.91 0.0 0.0 7.4 M M 24 72 60 66 4 0 94 -37 1 188 18 0 7.03 3.04 0.0 0.0 3.3 M M 25 78 56 67 5 0 94 -42 2 190 18 0 7.03 3.17 0.0 0.0 3.5 M M 26 82 57 70 9 0 94 -48 5 195 21 0 7.03 3.30 M M 8.8 M M 27 86 65 76 15 0 94 -54 11 206 30 0 7.03 3.43 M M 6.1 M M 28 76 55 66 6 0 94 -60 1 207 30 0 7.03 3.57 M M 8.0 M M 29 64 46 55 -5 10 104 -56 0 207 29 0 7.03 3.71 M M 8.8 M M 30 63 47 55 -5 10 114 -52 0 207 28 0.34 7.37 3.85 M M 10.3 M M 31 78 58 68 9 0 114 -59 3 210 30 0.05 7.42 3.99 M M 11.8 M M Monthly Summary for August ...TEMPERATURE DATA... ...PRECIPITATION DATA... AVERAGE MONTHLY: 63.6 TOTAL FOR MONTH: 7.42 DEPARTURE FROM NORMAL: -0.1 DEPARTURE FROM NORMAL: 3.43 HIGHEST: 86 ON 27 GREATEST IN A DAY: 3.11 ON 12 LOWEST: 45 ON 14 SNOWFALL, ICE PELLETS, HAIL MAX 32 OR BELOW: 0 TOTAL FOR MONTH: 0.0 INCHES MAX 90 OR ABOVE: 0 GREATEST SNOWFALL IN A DAY: 0.0 ON MIN 32 OR BELOW: 0 GREATEST SNOW DEPTH: 0 ON MIN 0 OR BELOW: 0 ...WEATHER, DAYS WITH... ...HEATING DEGREE DAYS... 0.01 INCH OR MORE PRECIP: 15 TOTAL THIS MONTH: 76 0.10 INCH OR MORE PRECIP: 9 DEPARTURE FROM NORMAL: -37 0.50 INCH OR MORE PRECIP: 3 SEASONAL TOTAL: 114 1.00 INCH OR MORE PRECIP: 2 DEPARTURE FROM NORMAL: -59 CLEAR (SCALE 0-3) PARTLY CLOUDY (SCALE 4-7) ...COOLING DEGREE DAYS... CLOUDY (SCALE 8-10) TOTAL THIS MONTH: 38 DEPARTURE FROM NORMAL: -34 ...PRESSURE DATA... SEASONAL TOTAL: 210 DEPARTURE FROM NORMAL: 30 HIGHEST SEA-LEVEL 30.41 ON 29 LOWEST SEA-LEVEL 29.63 ON 12 ...REMARKS... NEW DAILY PRECIPITATION SET ON THE 12TH (3.11"). OLD RECORD WAS 1.53" IN 1910. 20.26" SUMMER SEASON (JUNE, JULY AND AUGUST) RAINFALL IS 4TH MOST ALL-TIME. 2ND MOST AT THE AIRPORT. 7.42" MONTHLY RAINFALL IS 6TH MOST ALL-TIME. 4TH MOST AT THE AIRPORT. NOTE: AIRPORT RECORDS GO BACK TO 1941. ...END... KFM