BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, NOVEMBER 23, 2020 ALL TIMES ARE IN EASTERN STANDARD TIME RAIN AND FOG WITH SOME RUMBLES OF THUNDER, THEN A NICER AFTERNOON.... Today we observed a lot of rain and fog until noontime, clearing up for the makings of a chilly yet nice fall afternoon. A front came through this morning leaving us with an event total of 1.77 inches of rain. High winds were seen with the front as well, maxing out at around 40 mph. The rainfall was accompanied by a couple rumbles of thunder, but any lightning was distant and seen as a faint flash. Visibility was obscured by fog this morning, with an average visibility of an 1/8th mile. This changed around noontime when the weather conditions improved rapidly. We are currently seeing over 70 miles of visibility with partly cloudy skies. Temperature has dropped considerably, going from 55F this morning to around 42F this afternoon. A rainbow was also seen in the Braintree area from the observation tower. The high so far today is 58F, 10 degrees above the daily normal high of 48F. The low since midnight is 42F, 11 degrees above the normal low of 31F.  Today's Observations: 7 A.M. Weather: Light rain Temperature: 55F; Dew Point: 55F; Relative Humidity: 100% Wind: SSE at 18G24 kts Sea-level pressure: 29.87 ins. Hg, falling rapidly Visibility: 1/16th mile, fog 6-hr Max temp: 56F 6-hr Min temp: 45F 24-hr Precip: 0.40 ins. 24-hr Snow: 0.0 ins. Snow Depth: 0 ins. BHO SA 1155 1/16R-F 115/55/55/1518G24/987/ 8//// 70040 58048 10056 20045 10 A.M. Weather: Rain and fog Temperature: 56F; Dew Point: 56F; Relative Humidity: 100% Wind: SW at 11 kts, peak of 34 mph at 9:06 A.M. Sea-level pressure: 29.80 ins. Hg: falling steadily Visibility: 1/2 mile, fog 3-hr Precip: 0.62 ins. 3-hr Snow: 0.0 ins. BHO SA 1455 1/2RF 091/56/56/2111/980/ PK WND 2229/06/ 8//// 6062/ 56024 1 P.M. Weather: Broken stratocumulus, overcast altostratus Temperature: 47F; Dew Point: 47F; Relative Humidity: 100% Wind: NW at 14G21 kts Sea-level pressure: 29.72 ins. Hg: falling, then more rapidly Visibility: 20 miles, thin fog 6-hr Max temp: 58F 6-hr Min temp: 47F 6-hr Precip: 1.37 ins. 6-hr Snow: 0.0 ins. Snow Depth: 0 ins. BHO SA 1755 20 BKN 100 OVC 20 063/47/47/3214G21/972/ THN F ALQDS/ 8/42/ 6137/ 58028 10058 20047 SUMMARY FOR SUNDAY, NOVEMBER 22, 2020 TEMPERATURE (DEGREES F) MAX.......45   NORMAL.....48 MIN.......33   NORMAL.....32 MEAN......39   NORMAL.....40 DEPARTURE FROM 30-YEAR NORMAL................... -1 TOTAL DEPARTURE FOR THE MONTH...................+126 [+5.5 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY...............26  DEPARTURE......+1 TOTAL HEATING UNITS FOR THE MONTH..............359  DEPARTURE.....-123 TOTAL HEATING UNITS FOR THE SEASON.............811  DEPARTURE.....-234 TOTAL HEATING UNITS LAST SEASON TO DATE.......1031  DEPARTURE.....-220 PEAK WIND GUST FOR YESTERDAY (MPH):                      420C/Official..............28 SE   AT  11:55 P.M.                      AEROVANE (south tower).....28 SE   AT  11:58 P.M.                      ASOS.......................28 SE   AT  11:56 P.M.                      DAVIS #1...................30 SE   AT  11:56 P.M.                      DAVIS #2 (south tower).....30 ESE  AT  11:56 P.M.                      RMY........................31                      VECTOR.....................30                      MERLIN.....................30 FASTEST MILE FOR YESTERDAY: CONTACTING/OFFICIAL.............................21 ESE  AT  11:54 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................21 SE   AT  11:56 P.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE...............22 SE   AT  11:56 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE...............24 ESE  AT  11:56 P.M. AVERAGE WIND SPEED AND DIRECTION:                     CONTACTING/OFFICIAL......11.3 E   [269 total miles]                     ASOS.....................11.7     [264 total miles]                     DAVIS #1.................11.8 E   [283 total miles]                     DAVIS #2.................11.6 E   [278 total miles]                     RMY......................11.1 E   [266 total miles]                     VECTOR...................11.5     [268 total miles] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.......0.40  DEPARTURE....+0.24                              ASOS.............0.42 TOTAL PRECIPITATION FOR THE MONTH.............2.14  DEPARTURE....-1.33                              ASOS.............2.20 TOTAL PRECIPITATION FOR THE YEAR.............43.31  DEPARTURE....-3.93                               ASOS...........44.15 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.....-1.1 TOTAL SNOWFALL FOR THE SEASON..................6.5  DEPARTURE.....+5.1 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 The low since midnight is 44F, the daily normal low is 31F 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 23 HIGH 73 IN 1931 LOW 9 IN 1888, 2018 PRECIP 2.33 INS IN 2006 SNOWFALL 5.5 INS IN 1989 PEAK GUST 64e S IN 1953 RECORDS FOR NOVEMBER 24 HIGH 69 IN 1931 LOW 7 IN 1897 PRECIP 1.76 INCHES IN 1901 SNOWFALL 4.5 INS IN 1936 PEAK GUST 69 SSW IN 1959 TODAY'S REPORT PREPARED BY: Benjamin Turner