BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, AUGUST 19, 2020 ALL TIMES ARE IN EASTERN STANDARD TIME COOL AND OVERCAST WITH SOME DISTANT SHOWERS BEING SEEN IN THE AFTERNOON.... We observed excellent visibility today, reaching 80 miles by 10 A.M. Wind was northwesterly and below 10 mph on average. The max gust so far today is 16 mph. Skies were mostly cloudy this morning, turning overcast by noontime. With the increase in cloud cover, distant showers were seen to the south and north at the 1 P.M. observation. No showers have reached the observatory as of yet.     The high so far today is 81F, 2 degrees above the daily normal maximum of 79F. The low since midnight is 60F, 2 degrees below the normal minimum of 62F.   Today's Observations: 7 A.M. Weather: Scattered altocumulus castellanus, broken cirrus Temperature: 65F; Dew Point: 55F; Relative Humidity: 66% Wind: NW at 5 kts, light Sea-level pressure: 29.95 ins. Hg: rising steadily Visibility: 75 miles 6-hr Max temp: 65F 6-hr Min temp: 60F 24-hr Precip: 0.00 ins. BHO SA 1155 150 SCT 250 BKN 75 141/65/55/3305/995/ WND LGT/ 8/082 53016 10065 20060 10 A.M. Weather: Scattered altocumulus castellanus, broken cirrostratus, few cumulus Temperature: 74F; Dew Point: 51F; Relative Humidity: 46% Wind: W at 3 kts, light and variable Sea-level pressure: 29.95 ins. Hg: falling steadily Visibility: 80 miles 3-hr Precip: 0.00 ins. BHO SA 1455 150 SCT 250 BKN 80 140/74/51/2603/995/ FEW CU ALQDS WND L/V/ 8/188 58001 1 P.M. Weather: Scattered stratocumulus, overcast nimbostratus, distant virga SE-SW and N Temperature: 75F; Dew Point: 50F; Relative Humidity: 42% Wind: NW at 9 kts Sea-level pressure: 29.94 ins. Hg: falling, then steady Visibility: 80 miles 6-hr Max temp: 81F 6-hr Min temp: 64F 6-hr Precip: 0.00 ins. BHO SA 1755 40 SCT 80 OVC 80 139/75/50/3209/994/ VIRGA DSNT SE-SW AND N/ 8/82/ 55001 10081 20065 SUMMARY FOR TUESDAY, AUGUST 18, 2020 TEMPERATURE (DEGREES F) MAX.....84   NORMAL.....79 MIN.....63   NORMAL.....62 MEAN....74   NORMAL.....71 DEPARTURE FROM 30-YEAR NORMAL.................+3 TOTAL DEPARTURE FOR THE MONTH.................+77 [+4.1 DEGREES/DAY] COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY.................9   DEPARTURE.......+3                       TOTAL COOLING UNITS FOR THE MONTH................196  DEPARTURE......+75 TOTAL COOLING UNITS FOR THE SEASON...............683  DEPARTURE.....+211 TOTAL COOLING UNITS LAST SEASON TO DATE..........540  DEPARTURE.....+143 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY....................23 W   AT  1:25 P.M.                      AERO.........................23 W   AT  1:33 P.M.                    ASOS.........................23 W   AT  1:40 P.M.                    DAVIS........................26 W   AT  4:54 P.M                    RMY 23  MERLIN 24 FASTEST MILE FOR YESTERDAY......................16 W   AT 12:56 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................17 W   AT 12:55 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................19 W   AT 12:55 P.M. AVERAGE WIND SPEED AND DIRECTION...............10.1 W                              ASOS.........................9.6                    DAVIS.......................10.3 WSW [254 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..........0.84  DEPARTURE......-1.65                          ASOS..............0.85 TOTAL PRECIPITATION FOR THE YEAR..........29.91  DEPARTURE......-3.57                          ASOS.............30.66 PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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 08/01  87/66/77/+5/0.00/.../..             18 S    AERO 21 S    RMY 19 08/02  85/69/77/+5/0.02/.../..             36 S    AERO 37 S    RMY 38 08/03  91/75/83/+11/0.00/.../..            36 WSW  AERO 38 SW   RMY 36 08/04  83/71/77/5/0.21/.../..              67 SSE  AERO 71 S    RMY 70 08/05  90/68/79/+7/0.00/.../..             28 SW   AERO 30 SW   RMY 29 08/06  84/65/75/3/0.00/.../..   20 W    AERO 17 W    RMY 19 08/07  79/65/72/0/T/.../..                 16 NE   AERO 16 NE   RMY N/A 08/08  83/64/74/+2/0.00/.../..             20 S    AERO 20 S    RMY 19 08/09  90/65/78/+6/0.00/.../..             26 SSW  AERO 26 SSW  RMY 26 08/10  94/69/82/+11/0.00/.../..            22 W    AERO 20 W    RMY 20 08/11  92/72/82/+11/0.00/.../..            31 SSW  AERO 35 SSW  RMY 31  TSTM 08/12  93/74/84/+13/0.00/.../..            22 SSW  AERO 22 SW   RMY 19 08/13  88/71/80/+9/0.00/.../..             18 ENE  AERO 18 NE   RMY 18 08/14  82/67/75/+4/0.00/.../..             23 ENE  AERO 23 ENE RMY N/A 08/15  67/62/65/-6/T/.../..                33 NNE  AERO 32 NNE  RMY N/A 08/16  69/62/66/-5/..../.../..             26 ENE  AERO 28 ENE  RMY 26 08/17  73/59/66/-5/..../.../..             25 NE   AERO 24 NE   RMY N/A 08/18  84/63/74/+3/..../.../..             23 W    AERO 23 W    RMY 24 08/19  The low since midnight is 60F, the daily normal low is 62F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR AUGUST 19 HIGH 90F IN 1906, 1966, 2002 LOW 48F IN 1958 PRECIP 7.02 INCHES IN 1955 [DIANE - RECORD FOR MONTH] PEAK GUST 78 MPH ENE IN 1991 – HURRICANE BOB RECORDS FOR AUGUST 20 HIGH 93F IN 1937 LOW 48F IN 1896, 1905, 1949 PRECIP 2.71 INCHES IN 1970 PEAK GUST 47 MPH W IN 1983 TODAY'S REPORT PREPARED BY: Benjamin Turner