September, 1998 Preliminary Local Climatological Data Rochester, 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 77 49 63 -1 2 6 -46 0 438 -25 0 0 0.12 M M 9.5 24 270 2 71 47 59 -5 6 12 -43 0 438 -27 0 0 0.24 M M 6.7 15 240 3 77 55 66 2 0 12 -46 1 439 -28 0 0 0.37 M M 8.1 17 180 4 81 52 67 4 0 12 -49 2 441 -27 0 0 0.50 M M 5.1 13 180 5 84 58 71 8 0 12 -52 6 447 -22 0 0 0.62 M M 10.6 25 210 6 86 64 75 13 0 12 -56 10 457 -13 0 0 0.74 M M 7.8 23 350 7 69 50 60 -2 5 17 -55 0 457 -14 0 0 0.86 M M 10.4 24 340 8 68 45 57 -5 8 25 -51 0 457 -15 0 0 0.98 M M 6.5 17 60 9 72 43 58 -3 7 32 -48 0 457 -15 0 0 1.10 M M 8.8 22 180 10 81 56 69 8 0 32 -52 4 461 -11 0 0 1.22 M M 14.7 29 210 11 86 58 72 11 0 32 -56 7 468 -4 0 0 1.34 M M 11.4 23 220 12 89 58 74 14 0 32 -61 9 477 5 0 0 1.46 M M 6.4 14 240 13 88 63 76 16 0 32 -66 11 488 16 0 0 1.58 M M 9.8 22 210 14 72 63 68 8 0 32 -71 3 491 19 0 T 1.70 M M 6.8 18 200 15 78 58 68 9 0 32 -77 3 494 22 0 T 1.82 M M 7.8 16 350 16 78 55 67 8 0 32 -83 2 496 24 0 T 1.94 M M 5.8 13 200 17 80 52 66 7 0 32 -89 1 497 25 0 T 2.06 M M 6.0 15 170 18 84 60 72 14 0 32 -96 7 504 32 0 T 2.18 M M 8.6 18 210 19 87 63 75 17 0 32 -103 10 514 42 0.22 0.22 2.30 M M 11.4 28 170 20 78 47 63 5 2 34 -108 0 514 42 T 0.22 2.41 M M 9.1 24 300 21 58 42 50 -7 15 49 -101 0 514 42 0 0.22 2.52 M M 9.1 23 20 22 62 39 51 -6 14 63 -95 0 514 42 0 0.22 2.63 M M 6.5 18 20 23 65 38 52 -5 13 76 -90 0 514 42 0.18 0.40 2.74 M M 9.2 24 200 24 74 50 62 6 3 79 -96 0 514 42 0 0.40 2.85 M M 8.9 17 180 25 79 59 69 13 0 79 -105 4 518 46 0 0.40 2.96 M M 11.7 28 180 26 85 63 74 18 0 79 -114 9 527 55 0.12 0.52 3.07 M M 11.4 34 210 27 71 50 61 6 4 83 -120 0 527 55 0 0.52 3.17 M M 9.0 22 320 28 77 46 62 7 3 86 -127 0 527 55 0 0.52 3.27 M M 8.1 17 180 29 75 52 64 9 1 87 -136 0 527 55 0.30 0.82 3.37 M M 7.7 30 260 30 60 38 49 -5 16 103 -131 0 527 55 0.22 M 3.47 M M 12.6 30 330 Monthly Summary for September TEMPERATURE DATA...... (DEGREES F) AVERAGE MONTHLY TEMPERATURE.... 64.4 OR 5.2 DEGREES ABOVE NORMAL AVERAGE MAXIMUM TEMPERATURE.... 76.4 AVERAGE MINIMUM TEMPERATURE.... 52.4 HIGHEST TEMPERATURE WAS 89 ON DAY 12 LOWEST TEMPERATURE WAS 38 ON DAY 30 HEATING DEGREE DAYS (BASE 65) COOLING DEGREE DAYS MONTHLY TOTAL ........... 99 MONTHLY TOTAL .......... 89 DEPARTURE FROM NORMAL.... -86 DEPARTURE FROM NORMAL... 78 SEASONAL TOTAL (JUL-JUN). 103 SEASONAL TOTAL (JAN-DEC) 527 DEPARTURE FROM NORMAL.... -131 DEPARTURE FROM NORMAL... 55 PRECIPITATION DATA.... ..RAIN.. TOTAL FOR THE MONTH......... 1.04 OR 2.43 INCHES BELOW NORMAL TOTAL SINCE JANUARY 1ST..... 25.99 OR 1.29 INCHES ABOVE NORMAL GREATEST 24 HOUR RAINFALL WAS 0.30 INCHES ON DAY(S) 29 ..SNOW.. TOTAL FOR THE MONTH......... 0.0 TOTAL FOR THE SEASON........ 0.0 ..NUMBER OF DAYS.. WITH .01 INCHES OR MORE 7 HIGHS 32 DEGREES OR COLDER 0 WITH .10 INCHES OR MORE 5 HIGHS 90 DEGREES OR WARMER 0 WITH .50 INCHES OR MORE 0 LOWS 32 DEGREES OR COLDER 0 WITH 1.00 INCHES OR MORE 0 LOWS 0 DEGREES OR COLDER 0 SEA LEVEL PRESSURE............ HIGHEST 30.28 INCHES ON DAY 22 LOWEST 29.58 INCHES ON DAY 26 WIND DATA............. THE AVERAGE MONTHLY WIND SPEED WAS 8.9 MPH THE FASTEST TWO-MINUTE WIND WAS... 26 MPH FROM 200 DEGREES THE HIGHEST PEAK WIND GUST WAS.... 34 FROM 210 DEGREES REMARKS...