BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, NOVEMBER 16, 2020 ALL TIMES ARE IN EASTERN STANDARD TIME BRISK AND COOL FOLLOWING A COLD FRONTAL PASSAGE LAST EVENING.... A strong cold front came through last evening bringing with it a period of heavy rain totaling 0.67" and strong wind gusts. A peak gust to 60 mph occurred twice, once at 10 P.M. and again at 11:13 P.M., the latter coming with the actual frontal passage. Today we're seeing a mix of sun and clouds with a brisk westerly wind blowing. Gusts of 30-40 mph have been common since about mid morning into early this afternoon. Visibility has been decent, holding between 60-70 miles today. The high so far today is 52F, 2 degrees above the daily normal high of 50F. The low since midnight is 43F, 9 degrees above the normal low of 34F.  PRELIMINARY STATS FOR OCTOBER 2020 TEMPERATURE, Deg. F Avg. Max. 61.2 [+0.9] Avg. Min. 45.5 [+2.6] Mean      53.4 [+1.8] 24-hour corrected mean: 52.7 Max. for month: 75F on the 1st and 10th Min. for month: 24F on the 31st HEATING DEGREE DAYS Total heating units:   354  [-67] Total for the season:  452 [-111] Total for last season: 440 COOLING DEGREE DAYS Total cooling units:      1  [-4] Total for the season:   831  [+229] Total for last season:  682 PRECIPITATION, Inches Total: 6.75 [+2.06] Greatest in 24 hrs: 2.24 inches on the 16-17th SNOWFALL, Inches Total: 6.5 [+6.2] Greatest in 24 hrs: 6.5 inches on the 30th WIND, mph Avg. uncorrected wind speed: 10.7 mph Avg. corrected wind speed:   11.3 mph Prevailing wind direction:   S [12%] Peak gust and direction:     76 S on the 7th SUNSHINE: Campbell-Stokes card minutes: 10008 minutes of a possible 19824 or 50% Astronomical total minutes: 10345 minutes of a possible 20500 or 50% Today's Observations: 7 A.M. Weather: Scattered stratocumulus, virga distant NE Temperature: 43F; Dew Point: 34F; Relative Humidity: 70% Wind: WSW at 12 kts Sea-level pressure: 29.78 ins. Hg: falling then rising Visibility: 60 miles 6-hr Max temp: 49F 6-hr Min temp: 43F 24-hr Precip: 0.67 ins. 24-hr Snow: 0.0 ins. Snow Depth: 0 ins. BHO SA 1155 60 SCT 60 086/43/34/2512/978/ VIRGA DSNT NE/ 8/500 53006 6001 70067 10049 20043 10 A.M. Weather: Scattered stratocumulus Temperature: 48F; Dew Point: 27F; Relative Humidity: 43% Wind: W at 18G28 kts, peak wind 32 mph W at 9:51 A.M. Sea-level pressure: 29.82 ins. Hg: rising then falling Visibility: 70 miles 3-hr Precip: 0.00 ins. 3-hr Snow: 0.0 ins. BHO SA 1455 60 SCT 70 099/48/27/2618G28/982/ PK WND 2628/51/ 8/500 50013 1 P.M. Weather: Broken stratocumulus Temperature: 52F; Dew Point: 28F; Relative Humidity: 39% Wind: W at 17G26 kts, peak wind 32 mph W at 12:33 P.M. Sea-level pressure: 29.83 ins. Hg: rising, then more slowly Visibility: 60 miles 6-hr Max temp: 52F 6-hr Min temp: 43F 6-hr Precip: 0.00 ins. 6-hr Snow: 0.0 ins. Snow Depth: 0 ins. BHO SA 1755 E55 BKN 60 102/52/28/2817G26/983/ PK WND 2828/33/ 8/500 51003 10052 20043 SUMMARY FOR SUNDAY, NOVEMBER 15, 2020 TEMPERATURE (DEGREES F) MAX.......58   NORMAL.....51 MIN.......30   NORMAL.....34 MEAN......44   NORMAL.....42 DEPARTURE FROM 30-YEAR NORMAL...................  +2 TOTAL DEPARTURE FOR THE MONTH...................+122 [+7.9 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY...............21  DEPARTURE...... -2 TOTAL HEATING UNITS FOR THE MONTH..............191  DEPARTURE.....-121 TOTAL HEATING UNITS FOR THE SEASON.............643  DEPARTURE.....-232 TOTAL HEATING UNITS LAST SEASON TO DATE........825  DEPARTURE.....-218 PEAK WIND GUST FOR YESTERDAY (MPH):                      420C/Official..............60 S    AT 11:13 P.M.                      AEROVANE (south tower).....67 S    AT 11:17 P.M.                      ASOS.......................59 S    AT 10:05 P.M.                      DAVIS #1...................59 S    AT 10:52 P.M.                      DAVIS #2 (south tower).....66 S    AT 10:04 P.M.                      RMY........................65                      VECTOR.....................66                      MERLIN.....................59 FASTEST MILE FOR YESTERDAY: CONTACTING/OFFICIAL.............................43 S    AT 11:13 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................44 S    AT 11:16 P.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE...............40 S    AT  9:48 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE...............49 S    AT 11:16 P.M. AVERAGE WIND SPEED AND DIRECTION:                     CONTACTING/OFFICIAL......14.8 SSE [354 total miles]                     ASOS.....................14.3     [343 total miles]                     DAVIS #1.................14.6 S   [350 total miles]                     VECTOR...................14.7     [353 total miles] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.......0.67  DEPARTURE....+0.52                              ASOS.............0.70 TOTAL PRECIPITATION FOR THE MONTH.............1.74  DEPARTURE....-0.61                              ASOS.............1.78 TOTAL PRECIPITATION FOR THE YEAR.............42.91  DEPARTURE....-3.21                               ASOS...........43.73 SNOWFALL (INCHES) THROUGH THIS MORNING (EST): TOTAL SNOWFALL 24 HOURS ENDING 7 A.M...........0.0  DEPARTURE......0.0 TOTAL SNOWFALL FOR THE MONTH.................Trace  DEPARTURE.....-0.6 TOTAL SNOWFALL FOR THE SEASON..................6.5  DEPARTURE.....+5.6 PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST AERO: Aerovane wind recording system gust RMY:  R.M. Young wind gust recording system TSTM: Thunderstorm day (thunder heard some time during day) ....: Data not yet available, records not finalized M:    Missing data 10/01  75/56/66/+9/0.00/591/84           28 SW    AERO 28 SW   RMY N/A 10/02  63/49/56/-1/0.02/203/29           20 NW    AERO 21 NW   RMY 20 10/03  65/45/55/-1/0.00/676/97           19 WNW   AERO 19 WNW  RMY 19 10/04  65/45/55/-1/0.00/659/95           17 ESE   AERO 18 ESE  RMY 18 10/05  62/52/57/+1/0.00/277/40           17 ENE   AERO 17 ENE  RMY N/A 10/06  69/51/60/+5/0.00/503/73           28 S     AERO 28 S    RMY 29 10/07  73/50/62/+7/0.14/316/46           76 W     AERO 74 W    RMY 70  TSTM 10/08  61/42/52/-2/0.00/676/99           41 W     AERO 41 W    RMY N/A 10/09  60/37/49/-5/0.00/646/95           25 SSW   AERO 28 SSW  RMY N/A 10/10  75/52/64/+10/0.00/549/81          40 SSW   AERO 40 SSW  RMY 38 10/11  64/47/56/+3/0.00/574/85           32 NNW   AERO 35 NNW  RMY N/A 10/12  52/48/50/-3/T/000/00              28 E     AERO 27 E    RMY N/A 10/13  57/49/53/0/1.74/000/00            32 E     AERO 33 E    RMY N/A 10/14  67/47/57/+5/0.00/606/91           23 WNW   AERO 25 WNW  RMY N/A 10/15  71/50/61/+9/0.00/511/77           43 S     AERO 46 S    RMY 42 10/16  68/48/58/+7/1.00/020/03           28 S     AERO 30 S    RMY N/A 10/17  56/39/48/-3/1.24/480/73           35 WNW   AERO 40 WNW  RMY 37 10/18  60/46/53/+2/0.00/622/95           20 ESE   AERO 21 ESE  RMY 20 10/19  61/46/54/+4/0.00/575/88           16 ESE   AERO 16 SSE  RMY N/A 10/20  66/49/58/+8/0.00/065/10           22 S     AERO 22 S    RMY 22 10/21  71/56/64/+14/0.06/000/00          26 SSW   AERO 26 SSW  RMY 26 10/22  70/54/62/+13/0.00/471/73          18 SSW   AERO 17 SSW  RMY N/A 10/23  68/52/60/+11/0.00/340/53          18 ESE   AERO 18 ESE  RMY 18 10/24  68/42/55/+6/0.00/217/34           32 NNW   AERO 32 NNW  RMY 32 10/25  50/40/45/-4/0.00/134/21           19 NNW   AERO 19 NNW  RMY N/A 10/26  52/43/48/0/0.02/000/00            20 E     AERO 18 ESE  RMY 20 10/27  52/43/48/0/T/038/06               22 NNW   AERO 22 NNW  RMY N/A 10/28  49/42/46/-2/0.33/000/00           18 W     AERO 18 W    RMY 18 10/29  46/41/44/-3/1.26/000/00           39 NE    AERO 38 NE   RMY 38 10/30  41/26/34/-13/0.94/000/00          37 NNE   AERO 44 NNE  RMY N/A 10/31  39/24/32/-15/0.00/596/96          18 SSE   AERO 20 SSE  RMY 17 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST AERO: Aerovane wind recording system gust RMY:  R.M. Young wind gust recording system TSTM: Thunderstorm day (thunder heard some time during day) ....: Data not yet available, records not finalized M:    Missing data 11/01   49/36/43/-3/0.69/0.0/.../..      38 W     AERO 40 W    RMY 39 11/02   40/31/36/-10/T/T/.../..          61 WNW   AERO 62 WNW  RMY 62 11/03   43/29/36/-10/0.00/0.0/.../..     48 WNW   AERO 53 WNW  RMY 48 11/04   54/30/42/-3/0.00/0.0/.../..      30 SSW   AERO 30 SSW  RMY 30 11/05   69/49/59/+14/0.00/0.0/.../..     37 SSW   AERO 40 SSW  RMY 38 11/06   72/55/64/+19/0.00/0.0/.../..     28 SW    AERO 28 SW   RMY M 11/07   75/54/65/+20/0.00/0.0/.../..     21 WSW   AERO 21 WSW  RMY 21 11/08   73/54/64/+20/0.00/0.0/.../..     18 W     AERO 18 W    RMY 19 11/09   74/52/63/+19/0.00/0.0/.../..     20 WSW   AERO 18 WSW  RMY 21 11/10   74/53/64/+20/0.00/0.0/.../..     30 SW    AERO 28 SW   RMY 31 11/11   73/58/66/+23/0.04/0.0/.../..     40 SW    AERO 44 SW   RMY 45 11/12   64/46/55/+12/0.04/0.0/.../..     32 NNW   AERO 31 NNW  RMY 33 11/13   48/38/43/0/0.30/0.0/.../..       22 NW    AERO 21 NW   RMY 25 11/14   49/32/41/-1/0.00/0.0/.../..      26 NW    AERO 28 NW   RMY 29 11/15   58/30/44/+2/0.62/0.0/.../..      60 S     AERO 67 S    RMY 65 11/16   The low since midnight is 43F, the daily normal low is 34F DAILY RECORDS FOR NOVEMBER 2020 11/06/20: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 72F,           BREAKS PREVIOUS RECORD OF 71F SET IN 1959 AND 2015 11/07/20: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 75F,           TIES PREVIOUS RECORD OF 75F SET IN 1938 11/08/20: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 73F,           BREAKS PREVIOUS RECORD OF 72F SET IN 1938 11/09/20: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 74F,           BREAKS PREVIOUS RECORD OF 72F SET IN 1975 11/11/20: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 58F,           BREAKS PREVIOUS RECORD OF 56F IN 2002           DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 73F,           BREAKS PREVIOUS RECORD OF 68F IN 1984 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 16 HIGH 73 IN 1927 LOW 8 IN 1933 PRECIP 2.25 INCHES IN 1981 SNOWFALL 2.0 IN 1913 PEAK GUST 78 S IN 1989 RECORDS FOR NOVEMBER 17 HIGH 74 IN 1928 LOW 10 IN 1924 PRECIP 1.92 INCHES IN 1920 SNOWFALL 1.0 INS IN 1980 PEAK GUST 61 SSE IN 2006 TODAY'S REPORT PREPARED BY: Matt Douglas