BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SATURDAY, NOVEMBER 21, 2020 ALL TIMES ARE IN EASTERN STANDARD TIME HAZE AND WARMTH PERSIST ATOP GREAT BLUE HILL... Throw in another red square on the calendar for November! Today's high temperature so far is 62F with a low of just 46F. This calculates to be an average of 54F, which is more typical of early October!  The unusual warmth has been accompanied by limited visibility- only topping out at 45 miles. The sun has struggled to find gaps in the cloudiness. That said, most of the sky is painted by thin high cirrus resulting in a good deal of filtered sunshine. With most of the month behind us, we find ourselves sitting at +5.5F departure thus far. This is on pace for one of the warmest Novembers on record dating back 1885. We will see how the remainder of the month goes! The high so far today is 62F, 14 degrees above the daily normal high of 48F. The low since midnight 46F, 14 degrees above the normal low of 32F. Guidance indicates, however, that we will slip back in the 30s overnight as high pressure approaches to our north. Today's Observations: 7 A.M. Weather: Broken Altocumulus, Broken Cirrostratus Temperature: 46F; Dew Point: 36F; Relative Humidity: 66% Wind: W at 12 kts Sea-level pressure: 30.24 ins. Hg, rising steadily Visibility: 30 miles, hazy 6-hr Max temp: 51F 6-hr Min temp: 46F 24-hr Precip: 0.00 ins. 24-hr Snow: 0.0 ins. Snow Depth: 0 ins. BHO SA 1155 140 BKN 250 BKN 30 241/46/36/2612/024/ HAZY/ 8/076 53014 10051 20046 10 A.M. Weather: Scattered Altocumulus & Altostratus, Broken Cirrostratus Temperature: 57F; Dew Point: 39F; Relative Humidity: 51% Wind: W at 10 kts, gusting to 18 kts Sea-level pressure: 30.28 ins. Hg: rising steadily Visibility: 35 miles, hazy 3-hr Precip: 0.00 ins. 3-hr Snow: 0.0 ins. BHO SA 1455 140 SCT 250 BKN 35 253/57/39/2810G18/028/ HAZY/ 8/076 51012 1 P.M. Weather: Scattered Altocumulus & Altostratus, Scattered Cirrus; thin smoke layer along horizon N-SE Temperature: 56F; Dew Point: 32F; Relative Humidity: 39% Wind: WNW at 10 kts, gusting to 20 kts Sea-level pressure: 30.26 ins. Hg: falling, then falling more rapidly Visibility: 45 miles, hazy 6-hr Max temp: 62F 6-hr Min temp: 46F 6-hr Precip: 0.00 ins. 6-hr Snow: 0.0 ins. Snow Depth: 0 ins. BHO SA 1755 150 SCT 250 SCT 45 248/56/32/2910G20/026/ THN K LYR ALNG HRZN N-SE HAZY/ 8/076 58005 10062 20046 SUMMARY FOR FRIDAY, NOVEMBER 20, 2020 TEMPERATURE (DEGREES F) MAX.......63   NORMAL.....49 MIN.......44   NORMAL.....32 MEAN......54   NORMAL.....40 DEPARTURE FROM 30-YEAR NORMAL................... +14 TOTAL DEPARTURE FOR THE MONTH...................+114 [+5.5 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY...............11  DEPARTURE......-14 TOTAL HEATING UNITS FOR THE MONTH..............319  DEPARTURE.....-113 TOTAL HEATING UNITS FOR THE SEASON.............771  DEPARTURE.....-224 TOTAL HEATING UNITS LAST SEASON TO DATE........981  DEPARTURE.....-210 PEAK WIND GUST FOR YESTERDAY (MPH):                      420C/Official..............33 SSW  AT   2:06 P.M.                      AEROVANE (south tower).....35 SSW  AT   2:04 P.M.                      ASOS.......................35 SW   AT   1:50 A.M.                      DAVIS #1...................33 SW   AT  12:07 A.M.                      DAVIS #2 (south tower).....35 SW   AT   1:50 A.M.                      RMY........................37                      VECTOR.....................37                      MERLIN.....................33 FASTEST MILE FOR YESTERDAY: CONTACTING/OFFICIAL.............................29 SW   AT  12:07 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................28 SW   AT  12:07 A.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE...............27 SW   AT  12:07 A.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE...............28 SW   AT  12:07 A.M. AVERAGE WIND SPEED AND DIRECTION:                     CONTACTING/OFFICIAL......17.5 SW  [421 total miles]                     ASOS.....................18.2     [437 total miles]                     DAVIS #1.................17.2 WSW [413 total miles]                     DAVIS #2.................18.0 SW  [432 total miles]                     RMY......................16.9 SW  [406 total miles]                     VECTOR...................17.6     [422 total miles] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.......0.00  DEPARTURE....-0.16                              ASOS.............0.00 TOTAL PRECIPITATION FOR THE MONTH.............1.74  DEPARTURE....-1.41                              ASOS.............1.78 TOTAL PRECIPITATION FOR THE YEAR.............42.91  DEPARTURE....-4.01                               ASOS...........43.73 SNOWFALL (INCHES) THROUGH THIS MORNING (EST): TOTAL SNOWFALL 24 HOURS ENDING 7 A.M...........0.0  DEPARTURE.....-0.1 TOTAL SNOWFALL FOR THE MONTH.................Trace  DEPARTURE.....-0.9 TOTAL SNOWFALL FOR THE SEASON..................6.5  DEPARTURE.....+5.3 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/-3/0.69/0.0/006/01      38 W     AERO 40 W    RMY 39 11/02   40/31/36/-10/T/T/425/69          61 WNW   AERO 62 WNW  RMY 62 11/03   43/29/36/-10/0.00/0.0/473/77     48 WNW   AERO 53 WNW  RMY 48 11/04   54/30/42/-3/0.00/0.0/550/90      30 SSW   AERO 30 SSW  RMY 30 11/05   69/49/59/+14/0.00/0.0/548/90     37 SSW   AERO 40 SSW  RMY 38 11/06   72/55/64/+19/0.00/0.0/394/65     28 SW    AERO 28 SW   RMY M 11/07   75/54/65/+20/0.00/0.0/562/93     21 WSW   AERO 21 WSW  RMY 21 11/08   73/54/64/+20/0.00/0.0/584/97     18 W     AERO 18 W    RMY 19 11/09   74/52/63/+19/0.00/0.0/593/99     20 WSW   AERO 18 WSW  RMY 21 11/10   74/53/64/+20/0.00/0.0/597/100    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   53/39/46/+4/0.00/0.0/.../..      40 WNW   AERO 41 WNW  RMY 43 11/17   47/32/40/-1/0.00/0.0/.../..      28 NW    AERO 28 NW   RMY 30 11/18   32/19/26/-15/0.00/0.0/.../..     40 NW    AERO 46 NW   RMY 43 11/19   44/18/31/-10/0.00/0.0/.../..     37 SW    AERO 39 SW   RMY 43     11/20   63/44/54/+14/0.00/0.0/.../..     33 SSW   AERO 35 SSW  RMY 37 11/21 The low since midnight is 46F, the daily normal low is 32F 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 21 HIGH 69 IN 1931 LOW 10 IN 1888 PRECIP 2.60 INCHES IN 1950 SNOWFALL 4.0 INS IN 1929 PEAK GUST 69 NW IN 1989 RECORDS FOR NOVEMBER 22 HIGH 70 IN 1931 LOW 9 IN 2018 PRECIP 1.78 INS IN 2005 SNOWFALL 9.0 INS IN 1971 PEAK GUST 70e SE IN 1945 TODAY'S REPORT PREPARED BY: Benjamin Turner + Andrew Swanson