BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SUNDAY, DECEMBER 1, 2019 ALL TIMES ARE IN EASTERN STANDARD TIME OVERCAST SKIES WITH SOME SNOW IN THE EARLY AFTERNOON.... The sky has been overcast today, with a light easterly wind. Visibility this morning was good at an average of 70 miles, but is now less than 20 miles due to a light snowfall. About a 1/10th inch of snow has fallen since the 1 P.M. observation.   The daily snowfall records for the next two days are relatively low and may be surpassed in the upcoming storm. The current records are: December 1: 2.0 inches in 1902 December 2: 5.0 inches in 1894 and 1929 The high so far today is 29F, which is 15 degrees below the daily normal maximum of 44F. The low since midnight is 16F, which is 13 degrees below the normal minimum of 29F.   Today's Observations: 7 A.M. Weather: Overcast stratus Temperature: 17F; Dew Point: 9F; Wind: N at 7 kts Sea-level pressure: 30.04 ins. Hg, falling, then rising, now higher Visibility: 75 miles 6-hr Max temp: 21F 6-hr Min temp: 16F 24-hr Precip:  0.00 ins. 24-hr Snowfall: 0.0 ins. BHO SA 1155 E40 OVC 75 172/17/9/3607/004/ 8/6// 51012 10021 20016 10 A.M. Weather: Overcast stratus Temperature: 26F; Dew Point: 19F; Wind: N at 4 kts, Wind: Light and variable Sea-level pressure: 30.05 ins. Hg, rising, then falling Visibility: 70 miles 3-hr Precip: 0.00 ins. BHO SA 1455 E40 OVC 70 174/26/19/0104/005/ WND L/V/ 8/6// 53002 1 P.M. Weather: Overcast stratus Temperature: 29F; Dew Point: 23F; Wind: E at 4 kts, Wind: Light and variable Sea-level pressure: 29.97 ins. Hg, falling, then more quickly Visibility: 65 miles 6-hr Max temp: 29F 6-hr Min temp: 17F 6-hr Precip: 0.00 ins. BHO SA 1755 E40 OVC 65 147/29/23/0804/997/ WND L/V/ 8/6// 56027 10029 20017 SUMMARY FOR SATURDAY, NOVEMBER 30, 2019 TEMPERATURE (DEGREES F) MAX.....35   NORMAL.....45 MIN.....22   NORMAL.....29 MEAN....29   NORMAL.....37 DEPARTURE FROM 30-YEAR NORMAL.....................-8 TOTAL DEPARTURE FOR THE MONTH....................-100 [-3.5 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY...............36  DEPARTURE........+8 TOTAL HEATING UNITS FOR THE MONTH..............797  DEPARTURE.......+99 TOTAL HEATING UNITS FOR THE SEASON............1237  DEPARTURE.......-24 TOTAL HEATING UNITS LAST SEASON TO DATE.......1319  DEPARTURE.......-82 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY....................30  NW AT  6:47 A.M.                      AERO.........................29  NW AT  5:00 A.M.                      ASOS.........................32  NW AT  6:47 A.M.                    DAVIS........................32 WNW AT  1:59 P.M. RMY 31 FASTEST MILE FOR YESTERDAY......................23  NW AT 12:08 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................23  NW AT 12:08 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................24 WNW AT 12:07 P.M. AVERAGE WIND SPEED AND DIRECTION..............15.5  NW                                      ASOS.......................15.0                      DAVIS......................15.7  NW [312 deg.] 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..........3.74  DEPARTURE......-1.02                          ASOS..............3.93 TOTAL PRECIPITATION FOR THE YEAR..........49.08  DEPARTURE......+0.54                          ASOS.............49.40 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.......-0.2 TOTAL SNOWFALL FOR THE MONTH................0.1  DEPARTURE.......-2.2 TOTAL SNOWFALL FOR THE SEASON...............0.1  DEPARTURE.......-2.5 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  67/35/51/+5/..../0.0/534/86            67 S   AERO M  M   RMY N/A 11/02  50/31/41/-5/0.00/0.0/612/99            17 WNW AERO 14 W   RMY N/A 11/03  53/35/44/-2/0.00/0.0/567/92            25 WSW AERO 23 W   RMY 26 11/04  53/33/43/-2/0.00/0.0/546/89            24 S   AERO 20 S   RMY 24 11/05  54/44/49/+4/0.33/0.0/000/00            22 S   AERO 18 WNW RMY 28 11/06  51/36/44/-1/0.00/0.0/596/98            28 WSW AERO 23 W   RMY 27 11/07  55/38/47/+2/0.27/0.0/000/00            30 S   AERO 26 SSW RMY 32 11/08  38/23/31/-13/0.00/0.0/555/92           38 NW  AERO 37 WNW RMY 44   11/09  39/20/30/-14/0.00/0.0/583/97           22 S   AERO 18 S   RMY N/A 11/10  51/30/41/-3/0.00/0.0/174/29            30 SW  AERO 30 SW  RMY 31 11/11  52/39/46/+3/T/0.0/000/00               23 NE  AERO 22 NE  RMY 23 11/12  42/20/31/-12/0.08/0.1/000/00           37 WNW AERO 37 WNW RMY 41 11/13  28/15/22/-21/0.00/0.0/592/100          32 WNW AERO 32 WNW RMY 35 11/14  36/17/28/-14/0.00/0.0/136/23           18 SW  AERO 17 SW  RMY 20 11/15  51/32/42/0/0.00/0.0/553/94             25 WNW AERO 25 WNW RMY N/A 11/16  35/22/29/-13/0.00/0.0/580/99           35 NNW AERO 35 NNW RMY N/A 11/17  40/21/31/-10/T/T/.../..                28 ENE AERO 27 ENE RMY 29 11/18  36/32/34/-7/..../0.0/.../..            28 NNE AERO 29 N   RMY 31 11/19  42/36/39/-2/..../0.0/.../..            12 SSW AERO  9 NNW RMY N/A 11/20  38/33/36/-4/..../T/.../..              20 NW  AERO 18 NW  RMY 21 11/21  46/30/38/-2/0.00/0.0/.../..            21 NW  AERO 21 NW  RMY N/A 11/22  52/32/42/+2/0.12/0.0/.../..            46 W   AERO 47 W   RMY 47 11/23  44/27/36/-3/0.00/0.0/.../..            29 WNW AERO 29 WNW RMY N/A 11/24  44/35/40/+1/1.49/0.0/.../..            45 N   AERO 44 NE  RMY 46 TSTM 11/25  50/34/42/+3/0.00/0.0/.../..            32 WNW AERO 35 WNW RMY 23 11/26  59/39/49/+11/0.00/0.0/.../..           28 SSW AERO 27 SSW RMY 29 11/27  50/42/46/+8/..../0.0/.../..            30 W   AERO 32 W   RMY N/A TSTM 11/28  48/30/39/+1/..../T/.../..              42 NW  AERO 44 NW  RMY 44 11/29  39/27/33/-4/0.00/0.0/.../..            35 NW  AERO 36 NW  RMY 39 11/30  35/22/29/-8/0.00/0.0/.../..            30 NW  AERO 28 WNW RMY 31 12/01 The low since midnight is 16F, daily normal minimum is 29F DAILY RECORDS FOR NOVEMBER 11/13/19: DAILY RECORD LOW MAXIMUM TEMPERATURE OF 28F,           BREAKS PREVIOUS RECORD OF 30F SET IN 1920.           It was also the third earliest maximum temperature           colder than 30F on record, behind only 28F on 11/8/1894           and 29F on 11/12/1894. DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR DECEMBER 1 HIGH 70 IN 2001 LOW 3 IN 1887 PRECIP 1.46 INS. IN 1917 SNOW 2.0 INS. IN 1902 PEAK GUST 72 MPH NW IN 1964 RECORDS FOR DECEMBER 2 HIGH 61 IN 1998 LOW 3 IN 1890 PRECIP 2.09 INS. IN 1974 SNOWFALL 5.0 INS. IN 1894, 1929 PEAK GUST 89e MPH SSE IN 1942 TODAY'S REPORT PREPARED BY: Benjamin Turner