August, 1997 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 83 61 72 6 0 103 41 7 98 -13 0 0 0.12 M M 12.3 M M 2 84 60 72 6 0 103 39 7 105 -9 0 0 0.24 M M 5.9 M M 3 71 56 64 -2 1 104 38 0 105 -12 0.14 0.14 0.36 M M 6.2 M M 4 69 51 60 -6 5 109 41 0 105 -15 0 0.14 0.48 M M 7.3 M M 5 74 48 61 -5 4 113 43 0 105 -18 0 0.14 0.60 M M 6.8 M M 6 76 53 65 -1 0 113 41 0 105 -21 0 0.14 0.72 M M 7.7 M M 7 79 61 70 4 0 113 39 5 110 -19 0 0.14 0.84 M M 9.4 M M 8 79 63 71 5 0 113 37 6 116 -16 0.03 0.17 0.96 M M 14.9 M M 9 76 55 66 0 0 113 35 1 117 -18 0.20 0.37 1.09 M M 12.7 M M 10 64 47 56 -9 9 122 41 0 117 -21 0 0.37 1.22 M M 8.3 M M 11 68 43 56 -9 9 131 47 0 117 -24 0 0.37 1.35 M M 4.7 M M 12 67 47 57 -8 8 139 52 0 117 -27 0.05 0.42 1.48 M M 6.8 M M 13 65 41 53 -12 12 151 61 0 117 -30 0 0.42 1.61 M M 6.3 M M 14 61 41 51 -13 13 164 71 0 117 -33 0.12 0.54 1.74 M M 8.1 M M 15 60 53 57 -7 8 172 76 0 117 -35 0.13 0.67 1.87 M M 6.1 M M 16 58 50 54 -10 11 183 84 0 117 -37 T 0.67 2.00 M M 10.3 M M 17 63 47 55 -9 10 193 91 0 117 -39 T 0.67 2.13 M M 7.6 M M 18 66 49 58 -6 7 200 95 0 117 -41 0 0.67 2.26 M M 2.8 M M 19 56 47 52 -11 13 213 104 0 117 -43 0.43 1.10 2.39 M M 9.3 M M 20 61 52 57 -6 8 222 109 0 117 -45 0.28 1.38 2.52 M M 6.5 M M 21 64 49 57 -6 8 230 113 0 117 -47 T 1.38 2.65 M M 5.0 M M 22 69 46 58 -5 7 237 116 0 117 -49 0 1.38 2.78 M M 3.8 M M 23 64 50 57 -5 8 245 119 0 117 -51 0.01 1.39 2.91 M M 6.9 M M 24 67 53 60 -2 5 250 119 0 117 -53 T 1.39 3.04 M M 5.5 M M 25 68 53 61 0 4 254 118 0 117 -55 0.05 1.44 3.17 M M 8.6 M M 26 81 62 72 11 0 254 112 7 124 -50 0 1.44 3.30 M M 9.1 M M 27 75 53 64 3 1 255 107 0 124 -52 0 1.44 3.43 M M 7.3 M M 28 67 49 58 -2 7 262 108 0 124 -53 0 1.44 3.57 M M 7.1 M M 29 70 54 62 2 3 265 105 0 124 -54 T 1.44 3.71 M M 10.0 M M 30 71 59 65 5 0 265 99 0 124 -55 0.16 1.60 3.85 M M 4.7 M M 31 79 52 66 3 0 265 92 1 125 -55 0 1.60 3.98 M M 5.4 M M MONTHLY CLIMATIC SUMMARY FOR DULUTH MN - AUGUST 1997 ...TEMPERATURE DATA... ...PRECIPITATION DATA... AVERAGE MONTHLY: 60.7 TOTAL FOR MONTH: 1.60 DEPARTURE FROM NORMAL: -3.0 DEPARTURE FROM NORMAL: -2.39 HIGHEST: 84 ON 2 GREATEST IN A DAY: 0.43 ON 19 LOWEST: 41 ON 13 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: 11 TOTAL THIS MONTH: 162 0.10 INCH OR MORE PRECIP: 7 DEPARTURE FROM NORMAL: 49 0.50 INCH OR MORE PRECIP: 0 SEASONAL TOTAL: 265 1.00 INCH OR MORE PRECIP: 0 DEPARTURE FROM NORMAL: 92 CLEAR (SCALE 0-3) PARTLY CLOUDY (SCALE 4-7) ...COOLING DEGREE DAYS... CLOUDY (SCALE 8-10) TOTAL THIS MONTH: 34 DEPARTURE FROM NORMAL: -38 ...PRESSURE DATA... SEASONAL TOTAL: 125 DEPARTURE FROM NORMAL: -55 HIGHEST SEA-LEVEL 30.32 ON 5TH LOWEST SEA-LEVEL 29.46 ON 15TH ...REMARKS... AUGUST 1997 WAS A COLD AND DRY MONTH. THE TEMPERATURE WAS 3.0 DEGREES COLDER AND THE PRECIPITATION WAS 2.39 INCHES LESS THAN THE 30 YEAR NORMALS. THUNDERSTORMS OCCURRED ON THREE DAYS DURING THE MONTH AND DENSE FOG WITH VISIBILITY LESS THAN 1/2 MILE OCCURRED ON 10 DAYS. NO RECORDS WERE BROKEN OR TIED IN AUGUST 1997.