BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, OCTOBER 5, 2020 ALL TIMES ARE IN EASTERN STANDARD TIME COOL, YET HUMID WITH LIMITED VISIBILITY AND A SEA BREEZE.... Today we observed a limited visibility of 35 miles on average due to a layer of thin fog in the distance. Humidity has been high, at an average around 80%. This is due in part to a light sea breeze from the NE, coming in at about 10 mph. Skies were overcast this morning, but the sun broke out around noontime.   The drought monitor was updated on Thursday revealing yet another escalation. 55% of MA now in a "severe drought" and 29% considered in an "extreme drought" (approximately Boston to Providence and points south and east). -Drought section written by Andrew Swanson The high so far today is 60F, 5 degrees below the daily normal. The low since midnight is 53F, which is 6 degrees above the normal low of 47F. PRELIMINARY STATS FOR SEPTEMBER 2020 TEMPERATURE, Deg. F Avg. Max. 73.2 [+1.6] Avg. Min. 54.9 [+0.3] Mean      64.1 [+1.0] 24-hour corrected mean: 63.6 Max. for month: 82F on the 8th Min. for month: 39F on the 22nd HEATING DEGREE DAYS Total heating units:    95 [-22] Total for the season:   98 [-44] Total for last season:  93 COOLING DEGREE DAYS Total cooling units:     73  [+13] Total for the season:   830  [+233] Total for last season:  680 PRECIPITATION, Inches Total: 1.61 [-2.45] Greatest in 24 hrs: 1.02 ins. on 29th-30th WIND, mph Avg. uncorrected wind speed: 10.6 mph Avg. corrected wind speed:   11.1 mph Prevailing wind direction:   S [20%] Peak gust and direction:     71 S on the 30th SUNSHINE: Campbell-Stokes card minutes: N/A Astronomical total minutes: N/A Today's Observations: 7 A.M. Weather: Overcast stratus Temperature: 56F; Dew Point: 53F; Relative Humidity: 96% Wind: NNE at 7 kts Sea-level pressure: 30.14 ins. Hg: steady, then rising Visibility: 25 miles, thin fog 6-hr Max temp: 55F 6-hr Min temp: 53F 24-hr Precip: 0.00 ins. BHO SA 1155 30 OVC 25 208/56/53/0207/014/ THN FG ALQDS/ 8/6// 52009 10055 20053 10 A.M. Weather: Overcast stratus Temperature: 56F; Dew Point: 53F; Relative Humidity: 90% Wind: NNE at 10 kts Sea-level pressure: 30.16 ins. Hg: falling, then rising Visibility: 25 miles, thin fog 3-hr Precip: 0.00 ins. BHO SA 1455 30 OVC 25 215/56/53/0310/016/ THN FG ALQDS/ 8/6// 51007 1 P.M. Weather: Scattered stratocumulus Temperature: 59F; Dew Point: 52F; Relative Humidity: 77% Wind: NE at 5 kts Sea-level pressure: 30.16 ins. Hg: rising, then falling Visibility: 35 miles, thin fog 6-hr Max temp: 60F 6-hr Min temp: 53F 6-hr Precip: 0.00 ins. BHO SA 1755 50 BKN 35 214/59/52/0507/016/ THN FG ALQDS/ 8/800 58001 10060 20053 SUMMARY FOR SUNDAY, OCTOBER 4, 2020 TEMPERATURE (DEGREES F) MAX.....65   NORMAL.....65 MIN.....45   NORMAL.....47 MEAN....55   NORMAL.....56 DEPARTURE FROM 30-YEAR NORMAL.................-1 TOTAL DEPARTURE FOR THE MONTH.................+6 [+1.3 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY.............10  DEPARTURE.....  0 TOTAL HEATING UNITS FOR THE MONTH.............29  DEPARTURE..... -7 TOTAL HEATING UNITS FOR THE SEASON...........127  DEPARTURE.....-51 TOTAL HEATING UNITS LAST SEASON TO DATE......132  DEPARTURE......-5 COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY............. 0  DEPARTURE...... 0                   TOTAL COOLING UNITS FOR THE MONTH............. 1  DEPARTURE..... -1 TOTAL COOLING UNITS FOR THE SEASON...........831  DEPARTURE....+232 TOTAL COOLING UNITS LAST SEASON TO DATE......680  DEPARTURE....+151 PEAK WIND GUST FOR YESTERDAY (MPH)                    420C/Official................17 ESE AT  7:37 P.M.                      AERO.........................18 ESE AT  7:37 P.M.                    ASOS.........................18 ESE AT  5:29 P.M.                    DAVIS........................17 NNW AT 12:20 A.M.                    RMY N/A  MERLIN N/A FASTEST MILE FOR YESTERDAY......................15 ESE AT  7:41 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................14 ENE AT 11:59 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................15 ESE AT  7:36 P.M. AVERAGE WIND SPEED AND DIRECTION..............8.0 E (192 total miles)                            ASOS.......................8.1                    DAVIS......................8.5 NE [49 deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE....-0.15                          ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........0.02  DEPARTURE....-0.58                          ASOS..............0.02 TOTAL PRECIPITATION FOR THE YEAR..........34.45  DEPARTURE....-5.23                          ASOS.............35.23 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  76/59/68/0/0.00/698/88              22 SSE  AERO 21 SE   RMY 20 09/02  69/59/64/-4/0.18/102/13             23 SSE  AERO 23 SSE  RMY 24 09/03  75/66/71/+4/0.04/000/00             22 SSW  AERO 21 SSW  RMY N/A 09/04  82/62/72/+5/0.00/763/98             26 WNW  AERO 26 WNW  RMY 25 09/05  76/55/66/-1/0.00/760/98             25 W    AERO 25 W    RMY 24 09/06  78/58/68/+1/0.00/356/46             24 W    AERO 24 W    RMY N/A 09/07  79/61/70/+4/0.00/632/82             27 SSE  AERO 30 SSE  RMY 28 09/08  82/61/72/+6/0.00/545/71             17 S    AERO 16 S    RMY 17 09/09  80/62/71/+5/0.00/214/28             16 S    AERO 15 S    RMY 16 09/10  81/69/75/+10/0.28/015/02            21 SSW  AERO 21 SSW  RMY N/A 09/11  72/55/64/-1/0.01/152/20             25 N    AERO 25 N    RMY N/A 09/12  68/51/60/-5/0.00/666/88             21 ENE  AERO 21 ENE  RMY 21 09/13  74/53/64/0/0.00/611/81              26 SSW  AERO 26 SSW  RMY 26 09/14  74/50/62/-2/0.00/511/68             29 NNW  AERO 33 NNW  RMY 30 09/15  64/44/54/-10/0.00/583/78            18 S    AERO 18 S    RMY N/A 09/16  72/49/61/-2/0.00/603/81             31 SSW  AERO 31 SSW  RMY 31 09/17  76/57/67/+4/0.00/453/61             26 WSW  AERO 28 W    RMY N/A 09/18  64/48/56/-6/0.00/163/22             28 NE   AERO 30 NNW  RMY N/A 09/19  59/42/51/-11/0.00/722/98            23 N    AERO 23 N    RMY N/A 09/20  58/40/49/-13/0.00/602/82            25 NE   AERO 25 NE   RMY 27 09/21  61/41/51/-10/0.00/.../..            29 NE   AERO 27 NE   RMY 29 09/22  63/39/51/-10/0.00/.../..            28 NNW  AERO 30 NNW  RMY 29 09/23  78/50/64/+4/0.00/.../..             31 NW   AERO 32 WNW  RMY 32 09/24  76/57/67/+7/0.00/.../..             20 SW   AERO 18 WSW  RMY 19 09/25  77/57/67/+7/0.00/.../..             18 ENE  AERO 18 WSW  RMY N/A 09/26  77/57/67/+8/0.00/.../..             21 S    AERO 21 S    RMY 21 09/27  79/64/72/+13/0.01/.../..            24 S    AERO 25 S    RMY 24 09/28  78/64/71/+13/0.07/.../..            24 SSE  AERO 24 S    RMY 25 09/29  76/62/69/+11/0.01/.../..            30 S    AERO 30 S    RMY N/A 09/30  72/56/64/+6/1.01/.../..             71 S    AERO 88 S    RMY N/A 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/.../..             28 SW   AERO 28 SW   RMY N/A 10/02  63/49/56/-1/0.02/.../..             20 NW   AERO 21 NW   RMY 20 10/03  65/45/55/-1/0.00/.../..             19 WNW  AERO 19 WNW  RMY 19 10/04  65/45/55/-1/0.00/.../..             17 ESE  AERO 18 ESE  RMY 18 10/05 The low since midnight is 45F, the daily normal low is 47F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR OCTOBER 5 HIGH 86F IN 2007 LOW 29F IN 1965 PRECIP 3.17 INCHES IN 1962 PEAK GUST 64e MPH S IN 1979 RECORDS FOR OCTOBER 6 HIGH 83F IN 1990, 2007 LOW 26F IN 1965 PRECIP 3.78 INCHES IN 1962 PEAK GUST 60e MPH S IN 1942 TODAY'S REPORT PREPARED BY: Benjamin Turner