BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, NOVEMBER 10, 2018  ALL TIMES ARE IN EASTERN STANDARD TIME SEVERAL HOURS OF HEAVY RAIN OVERNIGHT...PRECIPITATION LINGERS AS LIGHT DRIZZLE THIS MORNING...STORM TOTAL 1.78 INCHES... Rain that began last evening just before 7 PM EST became heavy a few hours later with over an inch of rain falling in the three hours from 9 PM to midnight last night. A total of 1.73 inches was measured in the standard gauge this morning, with the heavy rain becoming moderate after midnight and then becoming light rain after 2 AM. Light drizzle lingered into mid-morning and the precipitation ended shortly after a brief rain shower  passed around 10 AM. An additional 0.05 inches was measured for the six hours ending at 1 PM EST, making the storm total rainfall 1.78 inches. This brings the monthly total up to 4.86 inches just through the first ten days of the month, continuing a very wet Fall season.  The Observatory has recorded nearly 20 inches of rain since September 1st. The temperature remained steady in the middle 40's much of the night into mid-morning, and the  wind peaked at 43 mph from the E just before midnight. After a period of lighter winds this morning, the wind picked up again as the storm began to depart just after 10 AM. The peak gust since then has been 40 mph W ar 2:10 PM. The visibility climbed quickly from 1/16 mile early this morning to 75 miles by late morning  after the rain ended and drier air and much lower dew points  began moving into the area. The dew point has dropped from 45F early today to the low 20's this afternoon.     PRELIMINARY STATS FOR OCTOBER 2018 TEMPERATURE, Deg. F Avg. Max. 58.0 [-2.3] Avg. Min. 42.7 [-0.2] Mean 50.4 [-1.2] 24-hour corrected mean: 50.2 Max. for month: 82F on the 10th Min. for month: 27F on the 22nd and 26th HEATING DEGREE DAYS Total heating units: 457 [+36] Total for the season: 544 [-19] Total for last season: 268 PRECIPITATION, Inches Total: 5.85 in. [+1.16] Greatest in 24 hrs: 2.08 inches on October 27 WIND, mph Avg. uncorrected wind speed: 11.6 mph Avg. corrected wind speed: 12.0 Prevailing wind direction: W [14% of total hours] Peak gust and direction: 54 NE  SUNSHINE: Campbell-Stokes card minutes: 7800 minutes of possible 19824 or 39% Astronomical total minutes: 8090 minutes of possible 20544 or 39% Today's Observations: 7 A.M. Weather: Sky obscured in light drizzle and dense fog Temperature: 44F; Dew Point: 44F; Wind: WNW at 7 kts   Sea-level pressure: 29.70 ins. Hg, rising then more slowly       Visibility: 1/16 mile 6-hr Max temp: 45F 6-hr Min temp: 44F 24-hr Precip: 1.73 ins.    BHO SA 1155 W2 X 1/16L-F 059/44/44/3007/970/ L-CTD /  8//// 51009 60/// 70173 10045 20044 10 A.M. Weather: Sky partly obscured, light rain shower, light drizzle and fog, overcast nimbostratus Temperature: 45F; Dew Point: 45F; Wind: W at 10 kts   Sea-level pressure: 29.71 ins. Hg, rising slightly  Visibility: 3/4 miles, variable 1/2 to 1 mile 3-hr Precip: 0.04 ins. BHO SA 1455 –X E4 OVC 3/4VRW-L-F 061/45/45/2710/971/ F4  VSBY 1/2V1 VSBY INCR RW-B50L-CTD/ 8/72/ 51002 6004/ 1 P.M. Weather: Scattered stratocumulus, broken stratocumulus Temperature: 42F; Dew Point: 29F; Wind: W at 18G27 kts  Sea-level pressure: 29.76 ins. Hg, rising then more quickly     Visibility: 75 miles 6-hr Max temp: 45F 6-hr Min temp: 40F  6-hr Precip: 0.05 ins. BHO SA 1755 30 SCT E55 BKN 75 078/42/29/2818G27/976/  PK WND 2832/19/ 8/500 53017 6005/ 10045 20040   SUMMARY FOR FRIDAY, NOVEMBER 9, 2018  TEMPERATURE (DEGREES F) MAX.....48   NORMAL.....52 MIN.....34   NORMAL.....35 MEAN....41   NORMAL.....44 DEPARTURE FROM 30-YEAR NORMAL.......................-3 TOTAL DEPARTURE FOR THE MONTH......................+46 [+4.9 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY..............24   DEPARTURE.........+3 TOTAL HEATING UNITS FOR THE MONTH.............133   DEPARTURE........-46 TOTAL HEATING UNITS FOR THE SEASON............677   DEPARTURE........-65 TOTAL HEATING UNITS LAST SEASON TO DATE.......408   DIFFERENCE......+269 PEAK GUST AND AVERAGE WIND SPEED (MPH)  PEAK WIND GUST FOR YESTERDAY....................43 E   AT 11:54 P.M.                    AERO.........................40 E   AT 11:54 P.M.                     ASOS.........................43 E   AT 11:54 P.M.                     DAVIS........................43 E   AT 11:54 P.M. RMY 42 FASTEST MILE FOR YESTERDAY......................30 E   AT 11:54 P.M.  MAXIMUM 2-MINUTE ASOS AVERAGE...................30 E   AT 11:57 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................32 E   AT  9:57 P.M. AVERAGE WIND SPEED AND DIRECTION..............13.2 E                    ASOS.......................13.8                       DAVIS......................13.3 E  [078 deg.]   PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....1.73  DEPARTURE.......+1.57                          ASOS..............1.81 TOTAL PRECIPITATION FOR THE MONTH..........4.86  DEPARTURE.......+3.47                          ASOS..............5.04  TOTAL PRECIPITATION FOR THE YEAR..........57.90  DEPARTURE......+12.92                          ASOS.............59.90  PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/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 10/01 65/53/59/+2/0.22/042/06         21 ENE AERO 18 SSW RMY N/A 10/02 64/53/59/+2/0.77/000/00         33 S   AERO 32 S   RMY 35 TSTM 10/03 60/52/56/0/0.33/000/00          18 NNE AERO 14 NNE RMY 14 10/04 69/57/63/+7/0.00/209/30         29 SSW AERO 29 SSW RMY 32 10/05 64/47/56/0/0.00/638/92          25 NE  AERO 21 NE  RMY 24 10/06 64/45/55/0/0.00/276/40          23 SSW AERO 23 SSW RMY 25 10/07 75/56/66/+11/0.05/076/11        28 NE  AERO 24 ENE RMY 27 10/08 56/53/55/+1/0.03/000/00         22 ENE AERO 20 ENE RMY N/A 10/09 75/56/66/+12/0.00/211/31        26 WSW AERO 28 SW  RMY 29 10/10 82/65/74/+20/0.00/496/73        24 WSW AERO 23 WSW RMY 25 10/11 70/56/63/+10/0.78/000/00        48 NNE AERO 47 NNE RMY 50 10/12 59/44/52/-1/0.31/182/27         32 NW  AERO 32 NW  RMY 33 10/13 49/40/45/-8/0.17/114/17         21 WNW AERO 20 WNW RMY 20 10/14 55/37/46/-6/0.00/127/19         21 W   AERO 18 W   RMY 21 10/15 66/44/55/+3/0.06/033/05         46 W   AERO 46 W   RMY N/A 10/16 56/41/49/-2/0.03/622/94         48 W   AERO 48 W   RMY N/A 10/17 60/39/50/-1/0.01/587/89         48 W   AERO 50 W   RMY 53 10/18 45/33/39/-12/0.00/657/100       32 WNW AERO 35 WNW RMY 36 10/19 60/31/46/-4/0.00/602/92         33 SSW AERO 36 SSW RMY 36 10/20 62/46/54/+4/0.00/228/35         35 SSW AERO 37 SSW RMY 33 10/21 46/31/39/-11/0.02/363/56        39 NNW AERO 41 NW  RMY 41 10/22 50/27/39/-10/0.00/497/77        24 W   AERO 22 W   RMY 21 10/23 53/40/47/-2/0.51/103/16         29 WNW AERO 29 WNW RMY 29  TSTM 10/24 45/35/40/-9/0.03/096/15         31 NW  AERO 31 NW  RMY 32  10/25 48/32/40/-9/0.00/510/80         35 NW  AERO 35 NW  RMY 36 10/26 45/27/36/-12/0.00/610/96        20 NW  AERO 19 NW  RMY N/A 10/27 48/38/43/-5/2.08/000/00         54 NE  AERO 55 NE  RMY 55 10/28 51/40/46/-2/0.07/000/00         23 NNE AERO 23 NNE RMY N/A TSTM 10/29 55/40/48/+1/0.37/138/22         30 WSW AERO 30 WSW RMY 34 10/30 45/34/40/-7/0.00/306/49         28 NW  AERO 28 NW  RMY 30 10/31 55/32/44/-3/0.01/367/59         35 SSW AERO 36 SSW RMY 37 DAILY RECORDS FOR OCTOBER 10/10/18: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 65F,            BREAKS PREVIOUS RECORD OF 62F SET IN 1949 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/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 65/49/57/+11/..../.../..         25 SSW AERO 24 SSW RMY N/A 11/02 65/52/59/+13/..../.../..         37 SSW AERO 41 SSW RMY N/A 11/03 64/42/53/+7/..../.../..          59 W   AERO 60 W   RMY 58 11/04 52/37/45/0/..../.../..           31 W   AERO 30 W   RMY N/A 11/05 49/40/45/0/..../.../..           30 ENE AERO 29 ENE RMY 28 11/06 58/45/52/+7/..../.../..          29 SSW AERO 29 SSW RMY 31 11/07 60/50/55/+10/..../.../..         30 WSW AERO 30 WSW RMY 32 11/08 52/37/45/+1/..../.../..          29 WNW AERO 26 WNW RMY 23 11/09 48/34/41/-3/..../.../..          43 E   AERO 40 E   RMY 42 11/10 Low temp since midnight is 44F; normal low is 35F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 10 HIGH 75 IN 1931 LOW 20 IN 2004 PRECIP 2.11 INCHES IN 1888 SNOWFALL 2.2 IN 1987 PEAK GUST 83e S IN 1942 RECORDS FOR NOVEMBER 11 HIGH 68 IN 1984 LOW 17 IN 1956 PRECIP 1.14 INCHES IN 1991 SNOWFALL 2.5 IN 1986 PEAK GUST 64 NW IN 1962 TODAY'S REPORT PREPARED BY: Mike Iacono