BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, NOVEMBER 4, 2020 ALL TIMES ARE IN EASTERN STANDARD TIME SUNNY WITH EXCELLENT MORNING VISIBILITY ATOP GREAT BLUE HILL.... Today we experienced clear skies and 85 miles of visibility. Wind started off light and variable, but reached 16 mph on average, with a max gust of 27 mph. High pressure has moved into the region, bringing us dew points in the low 20's. However, some moisture has moved in during the later afternoon hours. The high so far today is 52F, which is 2 degrees below the daily normal maximum of 54F. The low since midnight is 30F, which is 7 degrees below the daily normal minimum of 37F. Today's Observations: 7 A.M. Weather: Scattered stratocumulus and altostratus Temperature: 30F; Dew Point: 22F; Relative Humidity: 70% Wind: W at 4 kts, light and variable Sea-level pressure: 30.50 ins. Hg: rising, then more rapidly Visibility: 85 miles 6-hr Max temp: 31F 6-hr Min temp: 30F 24-hr Precip: 0.0 24-hr Snow: 0.0 Snow Depth: 0 ins. BHO SA 1155 40 SCT 120 SCT 85 330/30/22/2704/050/ WND L/V/ 8/810 53013 10031 20030 10 A.M. Weather: Few altocumulus Temperature: 43F; Dew Point: 22F; Relative Humidity: 42% Wind: S at 9 kts Sea-level pressure: 30.52 ins. Hg: rising, then more slowly Visibility: 80 miles 3-hr Precip: 0.00 ins. 3-hr Snow: 0.0 ins. BHO SA 1455 CLR 80 338/43/22/1809/052/ FEW AC ALQDS/ 8/080 50008 1 P.M. Weather: Few cumulus Temperature: 51F; Dew Point: 35F; Relative Humidity: 53% Wind: S at 9G15 kts Sea-level pressure: 30.48 ins. Hg: falling steadily Visibility: 80 miles 6-hr Max temp: 52F 6-hr Min temp: 30F 6-hr Precip: 0.00 ins. 6-hr Snow: 0.0 ins. Snow Depth: 0 ins. BHO SA 1755 CLR 80 326/51/35/1809G15/048/ FEW CU ALQDS/ 8/100 58012 10052 20030 SUMMARY FOR TUESDAY, NOVEMBER 3, 2020 TEMPERATURE (DEGREES F) MAX.......43 NORMAL.....54 MIN.......29 NORMAL.....37 MEAN......36 NORMAL.....46 DEPARTURE FROM 30-YEAR NORMAL..................-10 TOTAL DEPARTURE FOR THE MONTH..................-23 [-7.8 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY................. 29 DEPARTURE.....+10 TOTAL HEATING UNITS FOR THE MONTH................. 80 DEPARTURE.....+23 TOTAL HEATING UNITS FOR THE SEASON................532 DEPARTURE.....-88 TOTAL HEATING UNITS LAST SEASON TO DATE...........499 DEPARTURE.....+33 PEAK WIND GUST FOR YESTERDAY (MPH) 420C/Official..........................48 WNW AT 9:57 A.M. AEROVANE (south tower).................53 WNW AT 9:22 A.M. ASOS...................................47 WNW AT 9:56 A.M. DAVIS #1...............................49 WNW AT 9:49 A.M. DAVIS #2 (south tower).................45 WNW AT 9:56 A.M. VECTOR.................................5 RMY....................................48 MERLIN.................................48 FASTEST MILE FOR YESTERDAY.................31 WNW AT 9:58 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE..............30 WNW AT 9:57 A.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE..........33 WNW AT 9:57 A.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE..........36 NW AT 9:57 A.M. AVERAGE WIND SPEED AND DIRECTION...........14.4 NNW [345 total miles] ASOS..............13.1 DAVIS #1..........14.5 WNW [294 deg.] DAVIS #2..........14.8 WNW [294 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............0.69 DEPARTURE....+0.22 ASOS............0.71 TOTAL PRECIPITATION FOR THE YEAR............41.86 DEPARTURE....-2.38 ASOS..........42.66 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HOURS ENDING 7 A.M..........0.0 DEPARTURE.... 0.0 TOTAL SNOWFALL FOR THE MONTH..................Trace DEPARTURE....-0.1 TOTAL SNOWFALL FOR THE SEASON................ 6.5 DEPARTURE....+6.1 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 75/56/66/+9/0.00/591/84 28 SW AERO 28 SW RMY N/A 10/02 63/49/56/-1/0.02/203/29 20 NW AERO 21 NW RMY 20 10/03 65/45/55/-1/0.00/676/97 19 WNW AERO 19 WNW RMY 19 10/04 65/45/55/-1/0.00/659/95 17 ESE AERO 18 ESE RMY 18 10/05 62/52/57/+1/0.00/277/40 17 ENE AERO 17 ENE RMY N/A 10/06 69/51/60/+5/0.00/503/73 28 S AERO 28 S RMY 29 10/07 73/50/62/+7/0.14/316/46 76 W AERO 74 W RMY 70 TSTM 10/08 61/42/52/-2/0.00/676/99 41 W AERO 41 W RMY N/A 10/09 60/37/49/-5/0.00/646/95 25 SSW AERO 28 SSW RMY N/A 10/10 75/52/64/+10/0.00/549/81 40 SSW AERO 40 SSW RMY 38 10/11 64/47/56/+3/0.00/574/85 32 NNW AERO 35 NNW RMY N/A 10/12 52/48/50/-3/T/000/00 28 E AERO 27 E RMY N/A 10/13 57/49/53/0/1.74/000/00 32 E AERO 33 E RMY N/A 10/14 67/47/57/+5/0.00/606/91 23 WNW AERO 25 WNW RMY N/A 10/15 71/50/61/+9/0.00/511/77 43 S AERO 46 S RMY 42 10/16 68/48/58/+7/1.00/020/03 28 S AERO 30 S RMY N/A 10/17 56/39/48/-3/1.24/480/73 35 WNW AERO 40 WNW RMY 37 10/18 60/46/53/+2/0.00/622/95 20 ESE AERO 21 ESE RMY 20 10/19 61/46/54/+4/0.00/575/88 16 ESE AERO 16 SSE RMY N/A 10/20 66/49/58/+8/0.00/065/10 22 S AERO 22 S RMY 22 10/21 71/56/64/+14/0.06/000/00 26 SSW AERO 26 SSW RMY 26 10/22 70/54/62/+13/0.00/471/73 18 SSW AERO 17 SSW RMY N/A 10/23 68/52/60/+11/0.00/340/53 18 ESE AERO 18 ESE RMY 18 10/24 68/42/55/+6/0.00/217/34 32 NNW AERO 32 NNW RMY 32 10/25 50/40/45/-4/0.00/134/21 19 NNW AERO 19 NNW RMY N/A 10/26 52/43/48/0/0.02/000/00 20 E AERO 18 ESE RMY 20 10/27 52/43/48/0/T/.../.. 22 NNW AERO 22 NNW RMY N/A 10/28 49/42/46/-2/0.33/.../.. 18 W AERO 18 W RMY 18 10/29 46/41/44/-3/1.26/.../.. 39 NE AERO 38 NE RMY 38 10/30 41/26/34/-13/0.94/.../.. 37 NNE AERO 44 NNE RMY N/A 10/31 39/24/32/-15/0.00/.../.. 18 SSE AERO 20 SSE RMY 17 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/.../.. 38 W AERO 40 W RMY 39 11/02 40/31/36/-10/T/T/.../.. 61 WNW AERO 62 WNW RMY 62 11/03 43/29/36/-10/0.00/.../.. 48 WNW AERO 53 WNW RMY 48 11/04 The low since midnight is 30F, the daily normal low is 37F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 4 HIGH 77 IN 1987 LOW 22 IN 1891 PRECIP 3.27 INCHES IN 1910 SNOWFALL 6.4 IN 1945 PEAK GUST 73 WNW IN 1965 RECORDS FOR NOVEMBER 5 HIGH 76 IN 1994 LOW 18 IN 1908 PRECIP 4.26 INCHES IN 1955 SNOWFALL 1.5 IN 1892 PEAK GUST 69 W IN 2004 TODAY'S REPORT PREPARED BY: Benjamin Turner