BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, AUGUST 22, 2019 ALL TIMES ARE IN EASTERN STANDARD TIME HOT, HAZY AND HUMID WITH CONDITIONS IMPROVING IN THE AFTERNOON.... Visibility was limited throughout the day, with 35 miles on average due to a distant haze. Conditions were increasingly cloudy, with some moderate cumulus clouds being seen during the 1 P.M. observation. Wind shifted from S to W, with a peak gust so far of 18 mph. The high so far today is 88F, 9 degrees above the daily normal maximum of 79F. The low since midnight is 68F, 7 degrees above the average daily minimum of 61F.   Today's Observations: 7 A.M. Weather: Fog Temperature: 72F; Dew Point: 72F; Wind: S at 8 kts Sea-level pressure: 29.87 ins. Hg, rising, then more rapidly Visibility: 1/2 mile, fog 6-hr Max temp: 72F 6-hr Min temp: 68F 24-hr Precip: 0.12 ins. BHO SA 1155 W2 X 1/2F 114/72/72/1908/987/ 8//// 70012 53010 10072 20068 10 A.M. Weather: Scattered cumulus, broken altocumulus Temperature: 80F; Dew Point: 75F; Wind: SSW at 6 kts, Wind: Light Sea-level pressure: 29.87 ins. Hg, steady Visibility: 35 miles and hazy, with 20 miles NW-NE 3-hr Precip: 0.00 ins. BHO SA 1455 6 SCT E120 BKN 35 114/80/75/2106/987/ VSBY NW-NE 20 HAZY WND LGT/ 8/870 53000 1 P.M. Weather: Broken moderate cumulus and cirrostratus Temperature: 88F; Dew Point: 71F; Wind: W at 9 kts Sea-level pressure: 29.83 ins. Hg, falling steadily Visibility: 35 miles, hazy 6-hr Max temp: 88F 6-hr Min temp: 72F 6-hr Precip: 0.00 ins. BHO SA 1755 E30 BKN 250 BKN 35 103/88/71/2709/983/ HAZY/ 8/208 56011 10088 20072 SUMMARY FOR WEDNESDAY, AUGUST 21, 2019 TEMPERATURE (DEGREES F) MAX.....85   NORMAL.....79 MIN.....68   NORMAL.....61 MEAN....77   NORMAL.....70 DEPARTURE FROM 30-YEAR NORMAL......................+7 TOTAL DEPARTURE FOR THE MONTH.....................+37 [+1.6 DEGREES/DAY] COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY..............12   DEPARTURE.........+7 TOTAL COOLING UNITS FOR THE MONTH.............169   DEPARTURE........+31 TOTAL COOLING UNITS FOR THE SEASON............580   DEPARTURE........+91 TOTAL COOLING UNITS LAST SEASON TO DATE.......663   DEPARTURE........-83 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY....................33 SW  AT  9:11 P.M.                    AERO.........................32 SW  AT  9:09 P.M.                    ASOS.........................33 SSW AT  8:29 P.M.                    DAVIS........................34 WSW AT  9:10 P.M. RMY 33 FASTEST MILE FOR YESTERDAY......................25 SW  AT  9:12 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................24 SW  AT  9:28 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................24 SW  AT  9:28 P.M. AVERAGE WIND SPEED AND DIRECTION.............13.0 S                    ASOS......................12.7                    DAVIS.....................12.3 SSW [201 deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.12  DEPARTURE......-0.01                          ASOS..............0.09 TOTAL PRECIPITATION FOR THE MONTH..........0.98  DEPARTURE......-1.91                          ASOS..............0.94 TOTAL PRECIPITATION FOR THE YEAR..........36.30  DEPARTURE......+2.42                          ASOS.............36.21 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 8/01  84/66/75/+3/0.00/755/87               18 NNW AERO 20 NW  RMY 17 8/02  83/61/72/0/0.00/804/93                18 WSW AERO 18 WSW RMY 18 8/03  84/66/75/+3/0.00/302/35               25 SW  AERO 26 SW  RMY 25 8/04  83/66/75/+3/0.00/732/85               21 NE  AERO 23 SW  RMY 25 8/05  81/58/70/-2/0.00/842/98               20 S   AERO 18 S   RMY 19 8/06  79/63/71/-1/0.00/282/33               15 S   AERO 14 S   RMY 17 8/07  82/66/74/+2/..../367/43               32 SSW AERO 35 SSW RMY 35 8/08  84/67/76/+4/..../588/69               30 SW  AERO 24 WNW RMY 29 8/09  82/63/73/+1/..../815/96               28 NW  AERO 25 NW  RMY 26 8/10  78/59/69/-2/..../669/79               32 NW  AERO 28 NW  RMY 28 8/11  78/55/67/-4/0.00/.../..               28 W   AERO 25 W   RMY 28 8/12  82/60/71/0/0.00/.../..                25 W   AERO 23 W   RMY 26 8/13  77/66/72/+1/0.02/.../..               25 W   AERO 24 WSW RMY 24 8/14  75/62/69/-2/..../.../..               24 ENE AERO 22 ENE RMY 22 8/15  77/59/68/-3/..../.../..               17 ESE AERO 15 SSE RMY 16 8/16  78/61/70/-1/..../../..                20 E   AERO 17 ESE RMY 18 8/17  78/67/73/+2/..../../..                14 SE  AERO 15 SE  RMY 15 8/18  88/70/79/+8/..../.../..               18 SSW AERO 18 SSW RMY 21 8/19  92/69/81/+11/..../.../..              25 WSW AERO 23 WSW RMY 25 8/20  87/66/77/+7/..../.../..               18 W   AERO 14 WSW RMY N/A 8/21  85/68/77/+7/0.12/.../..               33 SW  AERO 32 SW  RMY 33 8/22 Low temp since midnight is 68F; normal low is 62F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR AUGUST 22 HIGH 90F IN 1939 LOW 42F IN 1894 PRECIP 2.28 INCHES IN 1935 PEAK GUST 44 MPH SSW IN 1987 RECORDS FOR AUGUST 23 HIGH 88F IN 1918, 1947, 1949, 1996 LOW 45F IN 1923 PRECIP 2.09 INCHES IN 2010 PEAK GUST 60e MPH NW IN 1940 TODAY'S REPORT PREPARED BY: Benjamin Turner and Matt Douglas