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 ------------------------------------------------------------------------------------ 09 1 29.6 12.3 21.0 0.0 1251 0 39.5 23 -7.9 16 0 18 31 3 09 2 39.6 19.6 29.7 0.0 901 0 59.3 27 -2.6 6 0 5 24 1 09 3 47.7 26.7 36.5 0.0 873 0 63.2 27 4.7 4 0 3 20 0 09 4 61.2 40.0 50.4 0.0 450 39 94.0 28 28.4 1 2 0 7 0 09 5 70.9 48.7 59.4 0.0 211 62 92.1 21 38.0 19 2 0 0 0 09 6 72.3 56.5 63.4 0.0 116 69 89.9 27 39.8 1 0 0 0 0 09 7 78.1 59.8 67.8 0.0 60 142 88.8 28 50.5 10 0 0 0 0 09 8 83.7 62.7 71.8 0.0 43 241 94.5 18 51.9 8 6 0 0 0 09 9 72.2 49.4 59.7 0.0 184 52 83.2 23 37.0 26 0 0 0 0 09 10 59.8 39.9 48.5 0.0 506 3 72.3 4 28.8 17 0 0 4 0 09 11 55.5 37.9 46.6 0.0 333 2 71.1 9 25.4 18 0 0 4 0 09 12 37.1 21.9 29.1 0.0 1072 1 68.4 3 4.8 23 0 12 27 0 ------------------------------------------------------------------------------------ 59.1 39.7 48.7 0.0 5999 609 94.5 AUG -7.9 JAN 10 38 117 4 PRECIPITATION (in) DEP. MAX DAYS OF RAIN FROM OBS. OVER YR MO TOTAL NORM DAY DATE .01 .1 1 --------------------------------------------- 09 1 0.51 0.00 0.26 28 8 1 0 09 2 1.15 0.00 0.42 19 9 4 0 09 3 2.08 0.00 0.45 29 11 6 0 09 4 3.92 0.00 1.54 21 11 5 1 09 5 3.14 0.00 1.34 7 11 7 1 09 6 3.97 0.00 0.98 12 19 10 0 09 7 2.16 0.00 0.46 2 14 5 0 09 8 2.92 0.00 1.30 29 9 3 1 09 9 1.24 0.00 0.48 12 8 5 0 09 10 2.40 0.00 0.67 28 11 6 0 09 11 2.73 0.00 1.58 14 5 4 1 09 12 3.45 0.00 0.82 3 11 7 0 --------------------------------------------- 29.67 0.00 1.58 NOV 127 63 4 WIND SPEED (mph) DOM YR MO AVG. HI DATE DIR --------------------------------- 09 1 0.8 20.0 8 S 09 2 1.3 24.0 8 WSW 09 3 1.1 19.0 12 WSW 09 4 1.2 19.0 4 WSW 09 5 0.6 19.0 1 S 09 6 0.2 17.0 1 SE 09 7 0.3 17.0 16 S 09 8 0.2 17.0 21 S 09 9 0.2 14.0 23 NW 09 10 0.2 19.0 31 NW 09 11 0.7 22.0 28 NW 09 12 1.0 21.0 3 SW --------------------------------- 0.6 24.0 FEB S