BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, OCTOBER 26, 2019 ALL TIMES ARE IN EASTERN STANDARD TIME MORNING FOG LEADS TO A FAIR WEATHER DAY WITH LIGHT AND VARIABLE WIND.... We experienced fog this morning that kept visibility down to a 1/16th mile. However, the fog dissipated by 10 A.M., and the visibility was 85 miles by the 1 P.M. observation. A 1/100th inch was measured this morning, left in the gauge by a light drizzle overnight. Wind has been variable throughout the day, shifting from NW-E since 7 A.M.   The high so far today is 58F, a degree above the daily normal maximum of 57F. The low since midnight is 47F, 8 degrees above the normal low of 39F. Today's Observations: 7 A.M. Weather: Fog Temperature: 47F; Dew Point: 47F; Wind: NW at 8 kts Sea-level pressure: 30.21 ins. Hg, rising then rising more slowly Visibility: 1/16th mile, fog 6-hr Max temp: 50F 6-hr Min temp: 47F 24-hr Precip: 0.01 ins. BHO SA 1155 X W3 1/16F 231/47/47/3108/021/ 8//// 70001 53019 10050 20047 10 A.M. Weather: Scattered cumulus, broken cirrus Temperature: 55F; Dew Point: 42F; Wind: N at 9G15 kts Sea-level pressure: 30.24 ins. Hg, falling then rising Visibility: 80 miles BHO SA 1455 30 SCT E250 BKN 80 239/55/42/3609G15/024/ 8/102 50008 1 P.M. Weather: Scattered cumulus, broken cirrostratus Temperature: 55F; Dew Point: 41F; Wind: E at 4 kts, Wind: Light and variable Sea-level pressure: 30.24 ins. Hg, rising steadily Visibility: 85 miles 6-hr Max temp: 58F 6-hr Min temp: 47F BHO SA 1755 40 SCT E250 BKN 85 540/55/41/0804/024/ WND L/V/ 8/108 52001 10058 20047 SUMMARY FOR FRIDAY OCTOBER 25, 2019 TEMPERATURE (DEGREES F) MAX.....64   NORMAL.....57 MIN.....47   NORMAL.....40 MEAN....56   NORMAL.....49 DEPARTURE FROM 30-YEAR NORMAL.....................+7 TOTAL DEPARTURE FOR THE MONTH....................+31 [+1.0 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY................9  DEPARTURE.........-8 TOTAL HEATING UNITS FOR THE MONTH..............280  DEPARTURE........-36 TOTAL HEATING UNITS FOR THE SEASON.............373  DEPARTURE........-85 TOTAL HEATING UNITS LAST SEASON TO DATE........410  DEPARTURE........-37 COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY................0  DEPARTURE..........0 TOTAL COOLING UNITS FOR THE MONTH................2  DEPARTURE.........-3 TOTAL COOLING UNITS FOR THE SEASON.............682  DEPARTURE........+80 TOTAL COOLING UNITS LAST SEASON TO DATE........874  DEPARTURE.......-192 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY....................20 WSW  AT  2:05 A.M.                      AERO.........................21 SW   AT 12:42 A.M.                    ASOS.........................21 SW   AT 12:45 A.M.                    DAVIS........................21 SW   AT 12:42 A.M. RMY N/A FASTEST MILE FOR YESTERDAY......................16 SW   AT 12:45 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................16 SW   AT  1:00 A.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................16 SW   AT 12:42 A.M. AVERAGE WIND SPEED AND DIRECTION................7.2 N                    ASOS.........................7.6                    DAVIS........................7.7 NW [315 deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.01  DEPARTURE......-0.14                          ASOS..............0.02 TOTAL PRECIPITATION FOR THE MONTH..........5.05  DEPARTURE......+1.30                          ASOS..............5.32 TOTAL PRECIPITATION FOR THE YEAR..........43.47  DEPARTURE......+0.63                          ASOS.............43.55 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  67/52/60/+3/0.06/.../..               28 SW  AERO 25 SSW RMY 29 10/02  74/49/62/+5/0.42/.../..               30 ENE AERO 25 ENE RMY 28 10/03  51/46/49/-7/..../.../..               28 ENE AERO 26 ENE RMY N/A 10/04  59/40/50/-6/..../.../..               38 NNW AERO 38 NNW RMY 38 10/05  58/35/47/-9/0.00/.../..               21 N   AERO 18 SSW RMY N/A 10/06  65/44/55/0/0.00/.../..                36 SSW AERO 35 SSW RMY N/A 10/07  77/57/67/+12/0.12/.../..              47 SSW AERO 46 SSW RMY 49 10/08  60/52/56/+2/T/.../..                  22 NE  AERO 18 NW  RMY N/A 10/09  55/49/52/-2/..../.../..               43 NE  AERO 37 NE  RMY 44 10/10  54/47/51/-3/..../.../..               41 NE  AERO 37 NE  RMY 42 10/11  52/48/50/-3/..../000/00               41 NE  AERO 39 NE  RMY 41 10/12  52/49/51/-2/..../.../..               39 NE  AERO 37 NE  RMY N/A 10/13  66/48/57/+4/..../.../..               18 WNW AERO 17 WNW RMY 18 10/14  67/51/59/+7/..../.../..               18 WSW AERO 17 WSW RMY N/A 10/15  61/43/52/0/..../.../..                18 NNW AERO 17 NNW RMY N/A 10/16  61/45/53/+2/..../.../..               58 ESE AERO 58 ESE RMY N/A 10/17  60/46/53/+2/..../.../..               61 E   AERO 63 E   RMY N/A 10/18  57/41/49/-2/..../.../..               29 WNW AERO 32 W   RMY 32 10/19  58/36/47/-3/..../.../..               18 NW  AERO 18 NW  RMY 19 10/20  60/43/52/+2/T/.../..                  14 NE  AERO 16 NE  RMY N/A 10/21  59/49/54/+4/0.01/.../..               25 E   AERO 21 NE  RMY 23 10/22  58/47/53/+4/..../.../..               29 E   AERO 28 E   RMY 23 10/23  65/48/57/+8/..../.../..               35 W   AERO 35 W   RMY 36 10/24  67/43/55/+6/.../.../..                28 SSW AERO 38 SSW RMY 29 10/25  64/47/56/+7/.../.../..                20 WSW AERO 21 SW  RMY N/A 10/26 The low since midnight is 47F, normal daily minimum is 39F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR OCTOBER 26 HIGH 80F IN 1963 LOW 24F IN 1933 PRECIP 1.72 INCHES IN 1894 SNOW 3.0 INCHES IN 1962 WIND 59 MPH SSE IN 1967 RECORDS FOR OCTOBER 27 HIGH 83F IN 1963 LOW 21F IN 1936 PRE 1.79 INCHES IN 1886 SNOW 2.5 INCHES IN 2011 WIND 54 MPH WNW IN 1968 TODAY'S REPORT PREPARED BY: Benjamin Turner