BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, DECEMBER 6, 2021 ALL TIMES ARE IN EASTERN STANDARD TIME SUNRISE: 0659E SUNSET:  1612E ROLLER-COASTER RIDE CONTINUES, WINDY AND "WARM" TODAY ON THE HILL.... Another cold front is approaching the region and promises to push through this evening. However before then, a strong push of warmer air has overspread the area. A warm front moved through early this morning accompanied by some mainly light rain showers. Temperatures rose starkly from the mid 40s to the upper 50s. The dew point also took a jump into the 50s, making it feel a tad sticky, especially compared to the dry air of recent days. The rain showers this morning only amounted to 0.10" total, 0.08" of which fell up to 7 A.M. In addition to the warm air, windy conditions are also being observed. The average speed for the day so far is around 19mph with a peak gust of 41 mph so far. Frequent gusts between 35-40mph have been occurring since mid to late morning here on the summit. The high so far today is 58F, which is 15 degrees above the normal max of 43F. The low since midnight is 37F, 9 degrees above the normal low of 28F. -------------------------------------------------------------- PRELIMINARY STATS FOR NOVEMBER 2021 TEMPERATURE, Deg. F Avg. Max. 50.8 [+0.7] Avg. Min. 33.6 [-0.2] Mean      42.2 [+0.2] 24-hour corrected mean: 41.6 Max. for month: 69F on the 18th Min. for month: 21F on the 30th HEATING DEGREE DAYS Total heating units:    680 [-12] Total for the season:  1007 [-197] Total for last season: 1204 PRECIPITATION, Inches Total: 1.92 [-2.39] Greatest in 24 hrs: 1.00 inch on the 12th SNOWFALL, Inches Total: 1.0 ins. [-0.8] Greatest in 24 hrs: 1.0 ins. from the 26th-27th WIND, mph Avg. uncorrected wind speed: 11.2 mph Avg. corrected wind speed:   11.7 mph Prevailing wind direction:   WNW [16%] Peak gust and direction:     72 SSE on the 12th SUNSHINE: Campbell-Stokes card minutes: N/A Astronomical total minutes: N/A -------------------------------------------------------------- Today's Observations: 7 A.M. Weather: Overcast stratus fractus, light rain showers Temperature: 46F; Dew Point: 46F; Relative Humidity: 100% Wind: SSE @ 13G22 kts, peak wind SSE 30 mph at 6:13 A.M. Sea-level pressure: 1016.4 mb; 30.01 in. Hg: falling, then more slowly Visibility: 1.5 miles, fog 6-hr Max temp: 47F 6-hr Min temp: 37F 24-hr Precip:  0.08 ins. 24-hr Snowfall: 0.0 ins. Snow Depth: 0 ins. BHO SA 1155 E1 OVC 11/2RW-F 164/46/46/1513G22/001/ STFRA DRFTG OVR SMT PK WND 1526/13/ 8/7// 56047 6008/ 70008 10047 20037 10 A.M. Weather: Sky obscured with vertical visibility 200ft Temperature: 55F; Dew Point: 55F; Relative Humidity: 100% Wind: S @ 17G27 kts, peak wind SSE 35 mph at 8:58 A.M. Sea-level pressure: 1012.3 mb; 29.89 in Hg; falling, then more slowly Visibility: 1/2 mile, fog 3-hr Precip: 0.02 ins. 3-hr Snowfall: 0.0 ins. BHO SA 1455 X W2 1/2F 123/55/55/1817G27/989/ RW-B24E29 PK WND 1630/58/ 8//// 56041 6002/ 1 P.M. Weather: Scattered stratus fractus, overcast stratocumulus, few breaks in overcast all quadrants Temperature: 58F, Dew point: 51F; Relative Humidity: 77% Wind: SSW @ 20G32 kts, peak wind SSW 41 mph at 12:20 P.M. Sea-level pressure: 1008.4 mb; 29.78 in Hg; falling unsteadily Visibility: 20 miles 6-hr Max temp: 58F 6-hr Min temp: 46F 6-hr Precip: 0.02 ins. 6-hr Snowfall: 0.0 ins. Snow Depth: 0 ins. BHO SA 1755 20 SCT E27 OVC 20 084/58/51/2120G32/978/ FEW BINOVC ALQDS PK WND 2036/20/ 8/7// 57039 6002/ 10058 20046 SUMMARY FOR SUNDAY, DECEMBER 5, 2021 TEMPERATURE (DEGREES F) MAX.......45     NORMAL.....43 MIN.......32     NORMAL.....28 MEAN......39     NORMAL.....36 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL............... +3 TOTAL DEPARTURE FOR THE MONTH........................... +8 [+1.4 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022) TOTAL HEATING UNITS FOR YESTERDAY...............26  DEPARTURE........-3 TOTAL HEATING UNITS FOR THE MONTH..............135  DEPARTURE........-9 TOTAL HEATING UNITS FOR THE SEASON............1142  DEPARTURE......-206 TOTAL HEATING UNITS LAST SEASON TO DATE.......1084  DEPARTURE...... +58 PEAK WIND GUST (MPH):                      Official (1-Sec AVG).......25 SE  @ 10:59 P.M.                      AEROVANE...................25 SE  @ 10:59 P.M.                      VECTOR #2 (Instantaneous)..26     @ 10:59 P.M.                      DAVIS #2 ..................26 SSE @ 10:59 P.M.                      RMY #2 (Instantaneous).....25 SE  @ 10:59 P.M.                      ASOS...........OUT OF SERVICE D/T RENOVATIONS                      VECTOR #1......OUT OF SERVICE D/T RENOVATIONS                      DAVIS #1.......OUT OF SERVICE D/T RENOVATIONS                      RMY #1.........OUT OF SERVICE D/T RENOVATIONS                        MERLIN.........OUT OF SERVICE D/T RENOVATIONS FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL..................18 SE  @ 10:59 P.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE..............18     @ 10:59 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE...............19 SE  @ 11:00 P.M. MAXIMUM 2-MINUTE RMY #2 AVERAGE.................19 SE  @ 10:51 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......OUT OF SERVICE D/T RENOVATIONS MAXIMUM 2-MINUTE DAVIS #1 AVERAGE...OUT OF SERVICE D/T RENOVATIONS MAXIMUM 2-MINUTE VECTOR #1 AVERAGE..OUT OF SERVICE D/T RENOVATIONS MAXIMUM 2-MINUTE RMY #1 AVERAGE.....OUT OF SERVICE D/T RENOVATIONS AVERAGE WIND SPEED AND DIRECTION:                      CONTACTING/OFFICIAL....... 9.1 W   [219 total miles]                      VECTOR #2................. 9.9                      DAVIS #2.................. 9.8 W                      RMY #2.................... 9.8 WSW                      RMY #1..............OUT OF SERVICE D/T RENOVATIONS                      ASOS................OUT OF SERVICE D/T RENOVATIONS                      VECTOR #1...........OUT OF SERVICE D/T RENOVATIONS                      DAVIS #1............OUT OF SERVICE D/T RENOVATIONS    PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.......0.08  DEPARTURE.....-0.11 TOTAL PRECIPITATION FOR THE MONTH.............0.08  DEPARTURE.....-0.81 TOTAL PRECIPITATION FOR THE YEAR.............56.85  DEPARTURE.....+7.75 SNOWFALL (INCHES) THROUGH THIS MORNING (EST): TOTAL SNOWFALL 24 HRS ENDING 7 A.M.............0.0  DEPARTURE......-0.3 TOTAL SNOWFALL FOR THE MONTH...................0.0  DEPARTURE......-1.2 TOTAL SNOWFALL FOR THE SEASON (2021-2022)......1.0  DEPARTURE......-2.7 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   59/41/50/+3/0.00/0.0/594/96      38 WNW AERO 39 WNW RMY 39 11/02   56/40/48/+1/0.00/0.0/247/40      25 SW  AERO 25 SW  RMY 26 11/03   51/35/43/-3/0.00/0.0/572/93      28 W   AERO 25 W   RMY 27     11/04   49/31/40/-6/0.00/0.0/446/73      17 NNE AERO 17 NNW RMY 16 11/05   49/32/41/-5/0.00/0.0/591/97      25 NW  AERO 24 NW  RMY 24 11/06   51/34/43/-2/0.00/0.0/595/98      18 SSW AERO 17 SW  RMY 19 11/07   55/37/46/+1/0.00/0.0/514/85      17 W   AERO 17 W   RMY 16 11/08   60/38/49/+4/0.00/0.0/578/96      20 N   AERO 18 N   RMY 19 11/09   69/45/57/+13/0.00/0.0/582/97     21 W   AERO 21 W   RMY 22 11/10   60/44/52/+8/0.00/0.0/389/65      36 NW  AERO 35 NW  RMY 35 11/11   56/40/48/+5/0.00/0.0/501/84      26 SE  AERO 28 SE  RMY 27 11/12   61/45/53/+10/1.00/0.0/000/00     72 SSE AERO 78 SSE RMY 76 11/13   60/36/48/+5/0.32/0.0/556/94      53 SW  AERO 53 SW  RMY 54 11/14   47/33/40/-2/0.03/0.0/336/57      29 W   AERO 28 W   RMY 28 11/15   48/36/42/0/0.07/0.0/405/69       35 W   AERO 36 W   RMY 38 11/16   46/31/39/-3/0.00/0.0/.../..      40 WNW AERO 41 WNW RMY 42 11/17   49/30/40/-1/0.00/0.0/.../..      34 S   AERO 36 S   RMY 34 11/18   69/49/59/+18/T/0.0/.../..        39 NW  AERO 36 WNW RMY 42 11/19   51/32/42/+1/0.29/0.0/.../..      42 W   AERO 41 W   RMY 41 11/20   45/27/36/-4/0.00/0.0/.../..      23 S   AERO 23 S   RMY 24 11/21   52/36/44/+4/T/0.0/.../..         35 S   AERO 35 S   RMY 36 11/22   55/33/44/+4/0.09/0.0/.../..      41 WSW AERO 41 WSW RMY 42 11/23   38/24/31/-8/0.00/0.0/.../..      36 NW  AERO 37 NW  RMY 37 11/24   41/22/32/-7/0.00/0.0/.../..      33 NW  AERO 32 NW  RMY 34 11/25   53/31/42/+3/0.00/0.0/.../..      21 WNW AERO 21 W   RMY 21 11/26   43/31/37/-1/0.11/0.9/.../..      39 WNW AERO 39 WNW RMY 41 11/27   37/24/31/-7/0.01/0.1/.../..      47 WNW AERO 45 WNW RMY 48 11/28   36/24/30/-8/T/T/.../..           22 W   AERO 21 W   RMY 23 11/29   39/25/32/-6/0.00/0.0/.../..      30 NW  AERO 28 NW  RMY 30 11/30   40/21/31/-6/0.00/0.0/.../..      27 WNW AERO 23 WSW RMY 26 PRELIMINARY CLIMATE SUMMARY FOR DECEMBER 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 12/01   44/30/37/0.00/0.0/.../..          35 W   AERO 35 W   RMY 34       12/02   58/35/47/10/T/0.0/.../..          56 WNW AERO 59 WNW RMY 62 TSTM 12/03   41/28/35/-1/0.00/0.0/.../..       46 NW  AERO 44 NW  RMY 46 12/04   39/25/32/-4/0.00/0.0/.../..       25 SW  AERO 23 SW  RMY 26 12/05   45/32/39/+3/0.00/0.0/.../..       25 SE  AERO 25 SE  RMY 25 12/06   The low since midnight is 37F, the daily normal low is 28F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated) RECORDS FOR DECEMBER 6 HIGH 70 IN 2001 LOW 5 IN 1901,1935 PRECIP 2.78 INS. IN 2003 SNOWFALL 17.0 INS. IN 2003 PEAK GUST 74 MPH NW IN 1981 RECORDS FOR DECEMBER 7 HIGH 74 IN 1998 LOW 6 IN 1906 PRECIP 1.67 INS. IN 1953 SNOWFALL 6.3 INS. IN 2003 PEAK GUST 76e SE IN 1976 TODAY'S REPORT PREPARED BY: Matt Douglas