BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, OCTOBER 20, 2021 ALL TIMES ARE IN EASTERN STANDARD TIME SUNRISE: 0603E SUNSET:  1654E FAIR WEATHER CONTINUES WITH MILDER CONDITIONS.... Despite the cool air mass in place, plenty of sunshine has been observed today along with dew points in the upper 40's to low 50's.   It is less breezy today with a consistent westerly wind a little under 10 mph. There are frequent gusts around 15 mph with a max gust earlier this morning of 23 mph. Visibility is decent, holding at around 60-65 miles all day. The high so far today is 68F, 8 degrees above the normal max of 60F. The low since midnight is 49F, 7 degrees above the normal low of 42F. -------------------------------------------------------------- Today's Observations: 7 A.M. Weather: Clear, one distant rogue cumulus cloud off to the NW, few altocumulus distant NE-SE , few cirrus distant NE-SE Temperature: 51F; Dew Point: 45F; Relative Humidity: 79% Wind: W @ 12G20 kts Sea-level pressure: 1012.2 mb; 29.89 in. Hg: rising, then more slowly Visibility: 60 miles 6-hr Max temp: 51F 6-hr Min temp: 49F 24-hr Precip: 0.00 ins. BHO SA 1155 CLR 60 122/51/45/2712G20/989/ FEW CU DSNT NW FEW AC DSNT NE-SE FEW CI DSNT NE-SE/ 8/171 51016 10051 20049 10 A.M. Weather: Clear, few distant cumulus N-NE, few altocumulus S-W , few cirrus Temperature: 63F; Dew Point: 51F; Relative Humidity: 65% Wind: W @ 08G15 kts Sea-level pressure: 1013.2 mb; 29.92 in Hg; rising, then more slowly Visibility: 60 miles 3-hr Precip: 0.00 ins. BHO SA 1455 CLR 60 132/63/51/2808G15/992/ FEW CU DSNT N-NE FEW AC DSNT S-W FEW CI ALQDS/ 8/172 51010 1 P.M. Weather: Clear, few cumulus distant, few altocumulus to the east, few cirrus Temperature: 68F, Dew point: 53F; Relative Humidity: 58% Wind: W @ 08G16 kts Sea-level pressure: 1012.8 mb; 29.91 in Hg; falling, then more slowly then steady Visibility: 65 miles 6-hr Max temp: 68F 6-hr Min temp: 51F 6-hr Precip: 0.00 ins. BHO SA 1755 CLR 65 128/68/53/2708G16/991/ FEW DSNT CU ALQDS FEW AC E FEW CI ALQDS/ 8/172 56004 10068 20051 SUMMARY FOR TUESDAY, OCTOBER 19, 2021 TEMPERATURE (DEGREES F) MAX.......59     NORMAL.....60 MIN.......40     NORMAL.....43 MEAN......50     NORMAL.....51 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL.............. -1 TOTAL DEPARTURE FOR THE MONTH..........................+90 [+4.5 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022) TOTAL HEATING UNITS FOR YESTERDAY...............15  DEPARTURE........+1 TOTAL HEATING UNITS FOR THE MONTH..............109  DEPARTURE.......-93 TOTAL HEATING UNITS FOR THE SEASON.............183  DEPARTURE......-137 TOTAL HEATING UNITS LAST SEASON TO DATE........268  DEPARTURE.......-85 COOLING DEGREE DAYS (SEASON: JAN 2021 THRU DEC 2021) TOTAL COOLING UNITS FOR YESTERDAY................0  DEPARTURE.........0 TOTAL COOLING UNITS FOR THE MONTH................3  DEPARTURE........-3 TOTAL COOLING UNITS FOR THE SEASON.............717  DEPARTURE.......+40 TOTAL COOLING UNITS LAST SEASON TO DATE........831  DEPARTURE......-114 PEAK WIND GUST (MPH):                      Official...................35 WNW @  2:32 P.M.                      AEROVANE (south tower).....37  W  @  1:51 P.M.                      VECTOR #2 (south tower)....39     @  1:54 P.M.                      DAVIS #2 (south tower).....34 WNW @  2:12 P.M.                      RMY #2 (south tower).......38  W  @  1:54 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..................26  W  @  1:52 P.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE..............27     @  2:13 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE...............27 WNW @  2:13 P.M. MAXIMUM 2-MINUTE RMY #2 AVERAGE.................26 WNW @  2:13 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........14.3 W [342 total miles]                      VECTOR #2..................15.3                      DAVIS #2...................15.3 NWW                      RMY #2.....................15.1 WNW                      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.......0.00  DEPARTURE....-0.18 TOTAL PRECIPITATION FOR THE MONTH.............2.42  DEPARTURE....-0.87 TOTAL PRECIPITATION FOR THE YEAR.............49.40  DEPARTURE....+7.70 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   64/44/54/-4/0.00/583/83          20 WNW AERO 20 WNW RMY N/A 10/02   73/47/60/+2/0.00/567/81          24 WSW AERO 23 WSW RMY N/A 10/03   65/55/60/+3/0.09/070/10          19 E   AERO 19 E   RMY N/A 10/04   59/51/55/-2/1.69/000/00          30 E   AERO 30 E   RMY N/A 10/05   58/50/54/-3/0.30/000/00          22 NNE AERO 23 NE  RMY N/A 10/06   69/50/60/+4/0.00/407/59          15 N   AERO 16 N   RMY N/A 10/07   73/55/64/+8/0.00/550/80          15 WSW AERO 15 W   RMY N/A 10/08   69/55/62/+7/T/616/90             24 ENE AERO 23 ENE RMY N/A 10/09   62/54/58/+3/0.01/273/40          23 E   AERO 23 E   RMY N/A 10/10   62/54/58/+3/T/000/00             22 E   AERO 21 E   RMY N/A 10/11   67/56/62/+8/0.01/.../..          20 NE  AERO 21 NE  RMY N/A 10/12   72/54/63/+9/0.00/.../..          15 SW  AERO 15 SW  RMY N/A 10/13   75/55/65/+11/0.00/.../..         18 SW  AERO 18 SW  RMY N/A 10/14   73/56/65/+12/0.00/.../..         19 N   AERO 20 N   RMY N/A 10/15   74/55/67/+14/0.00/.../..         24 S   AERO 24 SSW RMY N/A 10/16   73/59/66/+14/0.06/.../..         43 S   AERO 50 S   RMY 44 10/17   62/47/55/+3/0.25/.../..          32 WNW AERO 31 WNW RMY 31 10/18   60/42/51/-1/0.01/.../..          31 NW  AERO 32 NW  RMY 33 10/19   59/40/50/-1/0.00/.../..          35 WNW AERO 37 W   RMY 38 10/20   The low since midnight is 49F, the daily normal low is 42F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated) RECORDS FOR OCTOBER 20 HIGH 78F IN 1965,1984 LOW 24F IN 1972 PRECIP 7.10 INCHES IN 1996 (RECORD FOR MONTH) SNOWFALL TRACE IN 1934,1943 PEAK GUST 63 MPH W IN 1966 RECORDS FOR OCTOBER 21 HIGH 79F IN 1979 LOW 24F IN 1974 PRECIP 2.34 INCHES IN 1944 SNOWFALL TRACE IN 1895,1907,1941 PEAK GUST 69e MPH S IN 1976 TODAY'S REPORT PREPARED BY: Augustin Busschaert and Benjamin Turner