Climatological Summary for Year 2015

NAME:Lexington, MA
ELEV:220 feet
LAT:42-27.75 N
LONG:071-14.05 W

Temperature (°F)

Year Month Mean Max Mean Min Mean Heat deg days Cool deg days High Day Low Day Max >= 30 Max <= 30 Min <= 0 Min <= -20
2015 01 32.2 15.6 25.9 1263.2 0.0 51.0 18 -3.0 08 0 13 30 2
2015 02 27.0 6.7 17.8 1321.8 0.0 39.9 22 -6.2 24 0 23 28 5
2015 03 42.5 22.6 32.4 1010.9 0.0 68.9 29 4.5 06 0 4 28 0
2015 04 57.5 37.3 47.5 526.0 0.0 72.8 13 23.7 02 0 0 9 0
2015 05 76.0 49.5 62.7 132.6 61.1 88.8 10 34.1 02 0 0 0 0
2015 06 74.6 54.7 64.2 103.0 83.5 86.8 12 42.8 07 0 0 0 0
2015 07 83.6 61.6 71.0 1.3 232.3 92.8 29 27.6 06 3 0 1 0
2015 08 83.7 62.5 72.1 0.4 221.9 93.8 18 54.1 08 3 0 0 0
2015 09 79.3 55.8 66.7 64.8 117.0 94.7 08 36.8 27 3 0 0 0
2015 10 61.3 41.0 50.7 445.0 1.0 78.0 12 23.3 19 0 0 5 0
2015 11 55.9 36.3 45.7 580.7 1.6 76.5 05 21.3 24 0 0 11 0
2015 12 49.8 35.6 42.3 702.7 0.0 69.0 24 23.6 30 0 1 12 0
60.5 40.1 50.1 6152.3 718.5 94.7 Sep -6.2 Feb 9 41 124 7

Precipitation (in)

Days of rain over
Year Month Total Max observe day Date 0.01 0.10 1.00
2015 01 1.80 0.78 04 9 3 0
2015 02 0.41 0.20 22 6 1 0
2015 03 2.53 0.68 14 15 7 0
2015 04 2.07 0.73 20 13 5 0
2015 05 1.33 1.07 31 4 3 1
2015 06 5.74 2.34 28 15 8 1
2015 07 1.99 0.76 01 8 5 0
2015 08 3.08 2.01 21 6 3 1
2015 09 4.36 2.85 30 6 6 1
2015 10 1.68 0.66 28 11 4 0
2015 11 1.98 0.97 20 9 4 0
2015 12 3.31 0.54 17 12 10 0
30.28 2.85 Sep 114 59 4

Wind Speed (mph)

Year Month Average High Date Dom. direction
2015 01 2.9 36.0 05 252
2015 02 2.6 27.0 15 265
2015 03 2.8 34.0 22 253
2015 04 3.0 33.0 11 238
2015 05 2.7 26.0 27 229
2015 06 1.9 31.0 11 199
2015 07 1.4 24.0 30 230
2015 08 1.6 21.0 03 228
2015 09 1.5 20.0 30 217
2015 10 1.9 34.0 29 235
2015 11 2.3 29.0 13 236
2015 12 1.9 28.0 19 235
2.2 36.0 Jan 240