BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY TUESDAY, NOVEMBER 26, 2019 ALL TIMES ARE IN EASTERN STANDARD TIME VERY MILD WITH LIMITED MORNING VISIBILITY.... We observed partly cloudy skies, and a visibility of 10 miles this morning due to abnormally hazy conditions. Visibility was 65 miles at most, increasing in rapid fashion after noontime. Wind has been southwesterly, increasing to 15 mph on average by the 1 P.M. observation. The max gust so far today is 29 mph. Warm air advection and abundant sunshine can be credited for above average temperatures today. The high so far is 58F, which is 12 degrees above the daily normal maximum of 46F. The low since midnight is 39F, which is 9 degrees above the normal minimum of 30F. Today's Observations: 7 A.M. Weather: Scattered altocumulus, broken cirrus Temperature: 39F; Dew Point: 36F; Wind: SSW at 8 kts Sea-level pressure: 29.98 ins. Hg, rising steadily Visibility: 10 miles, haze 6-hr Max temp: 42F 6-hr Min temp: 39F 24-hr Precip: 0.00 ins. 24-hr Snowfall: 0.0 ins. BHO SA 1155 180 SCT E250 BKN 10 153/39/36/2108/998/ HAZY/ 8/061 51008 10042 20039 10 A.M. Weather: Scattered cirrus Temperature: 50F; Dew Point: 38F; Wind: SSW at 10 kts Sea-level pressure: 30.01 ins. Hg, rising steadily Visibility: 10 miles, haze 3-hr Precip: 0.00 ins. BHO SA 1455 250 SCT 10 163/50/38/2010/001/ HAZY/ 8/002 53010 1 P.M. Weather: Broken cirrostratus Temperature: 58F; Dew Point: 36F; Wind: SW at 15G22 kts Sea-level pressure: 29.97 ins. Hg, falling steadily Visibility: 65 miles 6-hr Max temp: 58F 6-hr Min temp: 39F 3-hr Precip: 0.00 ins. BHO SA 1755 250 BKN 65 151/58/36/2215G22/997/ 8/007 58012 10058 20039 SUMMARY FOR MONDAY, NOVEMBER 25, 2019 TEMPERATURE (DEGREES F) MAX.....50 NORMAL.....47 MIN.....34 NORMAL.....31 MEAN....42 NORMAL.....39 DEPARTURE FROM 30-YEAR NORMAL................... +3 TOTAL DEPARTURE FOR THE MONTH...................-108 [-4.5 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY...............23 DEPARTURE........-3 TOTAL HEATING UNITS FOR THE MONTH..............668 DEPARTURE......+108 TOTAL HEATING UNITS FOR THE SEASON............1108 DEPARTURE.......-16 TOTAL HEATING UNITS LAST SEASON TO DATE.......1180 DEPARTURE.......-72 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY....................32 WNW AT 12:18 A.M. AERO.........................35 WNW AT 12:08 A.M ASOS.........................34 WNW AT 12:19 A.M. DAVIS........................35 WNW AT 12:07 A.M. RMY N/A FASTEST MILE FOR YESTERDAY......................24 W AT 5:15 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................22 W AT 5:16 A.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................24 W AT 2:22 A.M. AVERAGE WIND SPEED AND DIRECTION..............12.6 W ASOS.......................12.6 DAVIS......................12.8 W [269 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..........3.43 DEPARTURE......-0.52 ASOS..............3.59 TOTAL PRECIPITATION FOR THE YEAR..........48.77 DEPARTURE......+1.04 ASOS.............49.06 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0 DEPARTURE.......-0.1 TOTAL SNOWFALL FOR THE MONTH................0.1 DEPARTURE.......-1.4 TOTAL SNOWFALL FOR THE SEASON...............0.1 DEPARTURE.......-1.7 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 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 The low since midnight is 39F, daily normal minimum is 30F 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 NOVEMBER 26 HIGH 66 IN 1979 LOW 6 IN 1938 PRECIP 2.22 INS IN 1888 SNOWFALL 3.0 INS IN 1974 PEAK GUST 78 SSE IN 1964 RECORDS FOR NOVEMBER 27 HIGH 68 IN 1896 LOW 5 IN 1932 PRECIP 2.23 INS IN 2013 SNOWFALL 16.0 INS IN 1898 PEAK GUST 68 NW IN 1997 TODAY'S REPORT PREPARED BY: Benjamin Turner