ANNUAL CLIMATOLOGICAL SUMMARY NAME: Lowell Road CITY: Westford STATE: MA ELEV: 174 ft LAT: 42° 36' 35" N LONG: 71° 24' 27" W TEMPERATURE (°F), HEAT BASE 65.0, COOL BASE 65.0 DEP. HEAT COOL MEAN MEAN FROM DEG DEG MAX MAX MIN MIN YR MO MAX MIN MEAN NORM DAYS DAYS HI DATE LOW DATE >=90 <=32 <=32 <=0 ------------------------------------------------------------------------------------ 10 1 36.2 20.3 28.0 0.0 531 0 54.7 25 3.2 30 0 3 13 0 10 2 37.8 24.3 30.4 0.0 926 0 49.9 20 12.1 7 0 4 25 0 10 3 51.8 34.3 42.8 0.0 563 4 72.7 20 21.1 10 0 0 10 0 10 4 63.8 42.2 52.7 0.0 298 21 89.3 7 30.7 13 0 0 2 0 10 5 71.2 50.9 60.6 0.0 187 51 85.7 20 31.0 11 0 0 1 0 10 6 80.2 58.8 68.4 0.0 69 172 92.3 24 46.1 9 3 0 0 0 10 7 88.1 64.8 75.4 0.0 21 343 99.7 5 50.7 2 14 0 0 0 10 8 84.5 60.8 71.7 0.0 45 251 98.2 31 50.8 21 8 0 0 0 10 9 78.9 56.3 66.2 0.0 94 121 97.5 1 39.8 21 2 0 0 0 10 10 62.0 41.5 50.8 0.0 433 11 76.7 26 31.8 20 0 0 1 0 10 11 51.3 32.1 41.2 0.0 747 0 67.9 13 21.4 28 0 0 19 0 10 12 37.4 22.3 29.3 0.0 965 0 55.7 1 7.0 10 0 7 26 0 ------------------------------------------------------------------------------------ 63.2 43.4 52.6 0.0 4878 975 99.7 JUL 3.2 JAN 27 14 97 0 PRECIPITATION (in) DEP. MAX DAYS OF RAIN FROM OBS. OVER YR MO TOTAL NORM DAY DATE .01 .1 1 --------------------------------------------- 10 1 2.36 0.00 1.39 25 8 4 1 10 2 3.68 0.00 1.68 24 7 3 2 10 3 5.85 0.00 2.81 14 10 8 2 10 4 0.36 0.00 0.30 9 2 1 0 10 5 3.73 0.00 1.28 30 10 7 1 10 6 7.13 0.00 1.35 4 16 12 3 10 7 6.94 0.00 1.23 15 14 10 3 10 8 7.96 0.00 1.46 22 13 12 3 10 9 0.86 0.00 0.37 18 10 2 0 10 10 2.85 0.00 1.55 15 5 4 1 10 11 2.81 0.00 1.12 17 9 5 1 10 12 2.66 0.00 1.82 12 6 3 1 --------------------------------------------- 47.19 0.00 2.81 MAR 110 71 18 WIND SPEED (mph) DOM YR MO AVG. HI DATE DIR --------------------------------- 10 1 0.8 22.0 29 SW 10 2 1.3 23.0 25 WSW 10 3 1.4 19.0 29 NW 10 4 0.8 20.0 29 WSW 10 5 0.4 24.0 3 WSW 10 6 0.3 16.0 3 S 10 7 0.4 18.0 16 S 10 8 0.4 18.0 8 S 10 9 0.4 21.0 18 S 10 10 0.6 19.0 15 S 10 11 0.9 22.0 17 WSW 10 12 1.2 23.0 27 WSW --------------------------------- 0.7 24.0 MAY S