BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

FRIDAY, NOVEMBER 27, 2020
ALL TIMES ARE IN EASTERN STANDARD TIME

STILL OVERCAST, BUT MUCH DRIER WITH EXCELLENT
VISIBILITY TODAY...

We hope everyone had a happy, healthy, and safe Thanksgiving!

Yesterday's storm totaled 0.37" of needed rainfall putting
us at just -0.23" below for the month, and -2.83" below
on the year. The precipitation exited the area late
afternoon leaving considerable fog in its wake lasting well
into the night. Skies were clear to start at 7AM today, though
quickly giving way to mostly cloudy conditions.

Winds have eased from yesterday's peak of 36 MPH and average
of 13.8 MPH. Winds are now predominantly from the WNW averaging
about 7 MPH. 

Temperatures only bottomed out at 46 degrees overnight. Not
much diurnal heating today thanks to the cloud cover - we've
only tacked on 7 degrees to the low so far today. Interestingly,
despite a relatively narrow dew point depression of 6 degrees
(53/47, 81% humidity), visibility has been excellent.  80 miles
was the call at 1 PM...some of the best viewing conditions found 
here.

The high so far today is 53F, 7 degrees above the daily normal
high of 46F. The low since midnight is 46F, 16 degrees above the
normal low of 30F.  


Today's Observations:
7 A.M.
Weather: Clear (few stratocumulus distant S-NW, few patches
of dense, shallow ground fog distant all quadrants)
Temperature: 46F; Dew Point: 45F; Relative Humidity: 96%
Wind: NW at 9 kts
Sea-level pressure: 30.05 in Hg; steady, then rising
Visibility: 45 miles (thin fog)
6-hr Max temp: 49F
6-hr Min temp: 46F
24-hr Precip: 0.32 ins.
24-hr Snow: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 CLR 45 177/46/45/3209/005/ FEW SC DSNT S-NW FEW 
PTCHS DNS SHLW GF DSNT ALQDS THN F ALQDS/ 8/500 53004 70032 
10049 20046

10 A.M.
Weather: Broken Stratocumulus (clear sky band in the distant
extending NE-SE)
Temperature: 48F; Dew Point: 46F; Relative Humidity: 91%
Wind: W at 8 kts
Sea-level pressure: 30.08 in Hg; rising, then falling
Visibility: 70 miles
3-hr Precip: 0.00 ins.
3-hr Snow: 0.0 ins.
BHO SA 1455 E050 BKN 70 186/48/46/2708/008/ CLR SKY BND DSNT 
XTDNG NE-SE/ 8/500 50009

1 P.M.
Weather: Broken Stratocumulus (clear sky band in the distant
extending NE-SE)
Temperature: 53F; Dew Point: 47F; Relative Humidity: 81%
Wind: W at 8 kts
Sea-level pressure: 30.02 in Hg; falling, then falling more slowly
Visibility: 80 miles
6-hr Max temp: 53F
6-hr Min temp: 46F
6-hr Precip: 0.00 ins.
6-hr Snow: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 E055 BKN 80 167/53/47/2808/002/ CLR SKY BND DSNT
XTDNG NE-SE/ 8/500 56019 10053 20046


SUMMARY FOR THURSDAY, NOVEMBER 26, 2020 - THANKSGIVING DAY

TEMPERATURE (DEGREES F)
MAX.......58   NORMAL.....46 
MIN.......45   NORMAL.....30
MEAN......52   NORMAL.....38

DEPARTURE FROM 30-YEAR NORMAL....................+14
TOTAL DEPARTURE FOR THE MONTH...................+129 [+4.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY...............13  DEPARTURE......+14
TOTAL HEATING UNITS FOR THE MONTH..............449  DEPARTURE.....-138
TOTAL HEATING UNITS FOR THE SEASON.............901  DEPARTURE.....-250
TOTAL HEATING UNITS LAST SEASON TO DATE.......1124  DEPARTURE.....-223

PEAK WIND GUST FOR YESTERDAY (MPH):
                     420C/Official..............36 S    AT   2:15 P.M.
                     AEROVANE (south tower).....37 S    AT   2:15 P.M.
                     ASOS.......................37 S    AT   2:15 P.M.
                     DAVIS #1...................35 N    AT   2:22 P.M.
                     DAVIS #2 (south tower).....39 S    AT   2:15 P.M.
                     RMY........................41      AT   2:14 P.M.
                     VECTOR.....................40      AT   2:14 P.M.
                     MERLIN.....................35

FASTEST MILE FOR YESTERDAY:
CONTACTING/OFFICIAL.............................27 S    AT   2:15 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE...................26 S    AT   2:15 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE...............25 SW   AT   2:23 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE...............28 S    AT   2:15 P.M.

AVERAGE WIND SPEED AND DIRECTION:
                     CONTACTING/OFFICIAL...... 13.8 S   [331 total miles]
                     ASOS..................... 14.1     [338 total miles]
                     DAVIS #1................. 13.5 SSW [324 total miles]
                     DAVIS #2................. 15.0 S   [360 total miles]
                     RMY...................... 13.8 SSW [331 total miles]
                     VECTOR................... 14.1     [338 total miles]


PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.......0.32  DEPARTURE....+0.16
                             ASOS.............0.33
TOTAL PRECIPITATION FOR THE MONTH.............3.88  DEPARTURE....-0.23
                             ASOS.............3.97
TOTAL PRECIPITATION FOR THE YEAR.............45.05  DEPARTURE....-2.83
                              ASOS...........45.92

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.....-1.7
TOTAL SNOWFALL FOR THE SEASON..................6.5  DEPARTURE.....+4.5


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   62/40/51/+11/0.00/0.0/.../..     24 W     AERO 23 W    RMY 27
11/22   45/33/39/-1/T/0.0/.../..         28 SE    AERO 28 SE   RMY 31
11/23   58/32/45/+6/1.77/0.0/.../..      42 WNW   AERO 48 WNW  RMY 46 TSTM
11/24   42/27/35/-4/0.00/0.0/.../..      31 WNW   AERO 32 WNW  RMY 33
11/25   50/26/38/-1/..../0.0/.../..      23 SSE   AERO 23 SSE  RMY 26
11/26   58/45/52/+14/.../0.0/.../..      36 S     AERO 37 S    RMY 41

11/27 The low since midnight is 46F, the daily normal low is 30F


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 27
HIGH 68 IN 1896
LOW 5 IN 1932
PRECIP 2.23 INS IN 2013
SNOWFALL 16.0 INS IN 1898
PEAK GUST 68 NW IN 1997

RECORDS FOR NOVEMBER 28
HIGH 70 IN 1990
LOW 10 IN 1901,1930,1936
PRECIP 1.84 INCHES IN 1889
SNOWFALL 3.0 INS IN 1917
PEAK GUST 90 SSW IN 1958

TODAY'S REPORT PREPARED BY: Andrew Swanson