BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, SEPTEMBER 16, 2020 ALL TIMES ARE IN EASTERN STANDARD TIME MOSTLY CLOUDY? WITH DECENT VISIBILITY ALL THINGS CONSIDERED.... Today the sky was mostly, if not fully obscured. That did not stop the visibility from being 70 miles at the 1 P.M. observation. Today was on the windier side, with a max gust of 31 mph from the SSW. The other story is the continued dry conditions. We could really use some rain as our rainfall deficit continues to mount. We've only recorded 0.51" of rain so far in September, this is 1.37 inches below normal to date. For the year our deficit has dropped to 3.58 inches below normal. Moderate to severe drought continues to plague the region. -Rainfall section written by Matthew Douglas The high so far today is the same as the the daily normal max. The low since midnight is 49F, which is 6 degrees below the normal low of 55F. Today's Observations: 7 A.M. Weather: Overcast cirrostratus, few cumulus offshore Temperature: 54F; Dew Point: 48F; Relative Humidity: 78% Wind: SSW at 13 kts Sea-level pressure: 30.26 ins. Hg: rising steadily Visibility: 65 miles, thin smoke layer 6-hr Max temp: 54F 6-hr Min temp: 49F 24-hr Precip: 0.00 ins. BHO SA 1155 300 OVC 65 246/54/48/2013/026/ FEW CU OFFSHR THN K LYR ALQDS/ 8/107 53006 10054 20049 10 A.M. Weather: Scattered cumulus, broken cirrostratus Temperature: 66F; Dew Point: 53F; Relative Humidity: 64% Wind: SSW at 12G22 kts, peak of 31 MPH SSW at 9:24 A.M. Sea-level pressure: 30.25 ins. Hg: falling, then more slowly Visibility: 65 miles, thin smoke layer 3-hr Precip: 0.00 ins. BHO SA 1455 50 SCT 300 BKN 65 241/66/53/2112G22/025/ THN K LYR ALQDS PK WND 2027/24/ 55002 1 P.M. Weather: Broken cirrostratus Temperature: 70F; Dew Point: 51F; Relative Humidity: 51% Wind: S at 16G22 kts Sea-level pressure: 30.18 ins. Hg: falling, then more rapidly Visibility: 70 miles 6-hr Max temp: 72F 6-hr Min temp: 54F 6-hr Precip: 0.00 ins. BHO SA 1755 300 BKN 70 217/70/51/1916G22/018/ 8/007 58024 10072 20054 SUMMARY FOR TUESDAY, SEPTEMBER 15, 2020 TEMPERATURE (DEGREES F) MAX.....64   NORMAL.....72 MIN.....44   NORMAL.....55 MEAN....54   NORMAL.....64 DEPARTURE FROM 30-YEAR NORMAL................ -10 TOTAL DEPARTURE FOR THE MONTH................ +12 [+0.5 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY.............11  DEPARTURE......+8 TOTAL HEATING UNITS FOR THE MONTH.............22  DEPARTURE......-9 TOTAL HEATING UNITS FOR THE SEASON............25  DEPARTURE.....-31 TOTAL HEATING UNITS LAST SEASON TO DATE.......46  DEPARTURE.....-21 COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY............  0  DEPARTURE......-2                   TOTAL COOLING UNITS FOR THE MONTH............ 48  DEPARTURE..... +5 TOTAL COOLING UNITS FOR THE SEASON...........805  DEPARTURE....+225 TOTAL COOLING UNITS LAST SEASON TO DATE......647  DEPARTURE....+158 PEAK WIND GUST FOR YESTERDAY (MPH)                    420C/Official................18 S   AT  8:00 P.M.                      AERO.........................17 S   AT  8:00 P.M.                    ASOS.........................18 NNW AT  2:12 A.M.                    DAVIS........................19 S   AT  8:05 P.M.                    RMY N/A  MERLIN N/A FASTEST MILE FOR YESTERDAY......................14 S   AT  8:03 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................14 S   AT  8:15 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................13 S   AT  8:15 P.M. AVERAGE WIND SPEED AND DIRECTION...............7.5  NNW                             ASOS........................7.5                    DAVIS.......................7.8  NW [322 deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE....-0.13                          ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........0.51  DEPARTURE....-1.37                          ASOS..............0.51 TOTAL PRECIPITATION FOR THE YEAR..........33.32  DEPARTURE....-3.58                          ASOS.............34.09 PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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 09/01  76/59/68/0/0.00/.../..              22 SSE  AERO 21 SE   RMY 20 09/02  69/59/64/-4/.../.../..              23 SSE  AERO 23 SSE  RMY 24 09/03  75/66/71/+4/.../.../..              22 SSW  AERO 21 SSW  RMY N/A 09/04  82/62/72/+5/0.00/.../..             26 WNW  AERO 26 WNW  RMY 25 09/05  76/55/66/-1/0.00/.../..             25 W    AERO 25 W    RMY 24 09/06  78/58/68/+1/0.00/.../..             24 W    AERO 24 W    RMY N/A 09/07  79/61/70/+4/0.00/.../..             27 SSE  AERO 30 SSE  RMY 28 09/08  82/61/72/+6/0.00/.../..             17 S    AERO 16 S    RMY 17 09/09  80/62/71/+5/0.00/.../..             16 S    AERO 15 S    RMY 16 09/10  81/69/75/+10/0.28/.../..            21 SSW  AERO 21 SSW  RMY N/A 09/11  72/55/64/-1/0.01/.../..             25 N    AERO 25 N    RMY N/A 09/12  68/51/60/-5/0.00/.../..             21 ENE  AERO 21 ENE  RMY 21 09/13  74/53/64/0/0.00/.../..              26 SSW  AERO 26 SSW  RMY 26 09/14  74/50/62/-2/0.00/.../..             29 NNW  AERO 33 NNW  RMY 30 09/15  64/44/54/-10/0.00/.../..            18 S    AERO 18 S    RMY N/A 09/16 The low since midnight is 49F, the daily normal low is 55F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR SEPTEMBER 16 HIGH 91F IN 1939,1941 LOW 39F IN 1984 PRECIP 5.12 INCHES IN 1933 (Hurricane) PEAK GUST 59 MPH SSE IN 1999 RECORDS FOR SEPTEMBER 17 HIGH 87F IN 2015 LOW 38F IN 1959 PRECIP 2.73 INCHES IN 1933 PEAK GUST 60 MPH WNW IN 1999 TODAY'S REPORT PREPARED BY: Benjamin Turner