BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY WEDNESDAY, SEPTEMBER 11, 2019 ALL TIMES ARE IN EASTERN STANDARD TIME WARMER AND MORE HUMID TODAY WITH A GUSTY BREEZE.... Definitely doesn't feel as comfortable today as it has in recent days, as the dew point has been rising through the day. Current values have reached into the mid 60s. Temperatures were held mainly in the 70s through late morning due to the abundance of cloud cover the first half of the day, however an abundance of sunshine developed for a time late this morning into early afternoon. The other story up here has been the wind, with gusts just over 30mph early this morning out of south-southwest. A gradual decrease in the wind has been occurring into this afternoon.   The high so far today is 80F, 7 degrees above the daily normal of 73F. The low since midnight is 63F, 7 degrees above average minimum of 56 degrees. PRELIMINARY STATS FOR AUGUST 2019 TEMPERATURE, Deg. F Avg. Max. 80.4 [+1.2] Avg. Min. 62.1 [+0.3] Mean      71.5 [+1.0] 24-hour corrected mean: 70.5 Max. for month: 92F on the 19th Min. for month: 51F on the 26th COOLING DEGREE DAYS Total cooling units:   211 [+22] Total for the season:  619 [+82] Total for last season: 753 PRECIPITATION, Inches Total: 1.83 [-2.21] Greatest in 24 hrs: N/A WIND, mph Avg. uncorrected wind speed: 9.1 mph Avg. corrected wind speed:   9.8 mph Prevailing wind direction: N/A Peak gust and direction: N/A   SUNSHINE: Campbell-Stokes card minutes: N/A Astronomical total minutes:   N/A Today's Observations: 7 A.M. Weather: Broken stratocumulus, broken altocumulus   Temperature: 68F; Dew Point: 63F; Wind: SW at 19 kts gusting to 26 kts Sea-level pressure: 30.15 ins. Hg, falling, then more rapidly Visibility: 30 miles 6-hr Max temp: 68F 6-hr Min temp: 64F 24-hr Precip: 0.00 ins. BHO SA 1155 E20 BKN 110 BKN 30 211/68/63/2219G26/015/ PK WND 2227/28 8/530 58009 10068 20064 10 A.M. Weather: Overcast altocumulus, few breaks in overcast Temperature: 74F; Dew Point: 65F; Wind: SW at 15 kts gusting to 22 kts   Sea-level pressure: 30.11 ins. Hg, falling, then more rapidly Visibility: 30 miles 3-hr Precip: 0.00 in. BHO SA 1455 E120 OVC 30 197/74/65/2115G22/011/ FEW CU ALQDS FEW BINOVC OHD/ 8/13/ 58014 1 P.M. Weather: Broken cumulus, broken cirrus Temperature: 79F; Dew Point: 66F; Wind: W at 11 kts gusting to 16kts Sea-level pressure: 30.05 ins. Hg, falling, then falling slower Visibility: 30 miles 6-hr Max temp: 80F 6-hr Min temp: 68F BHO SA 1755 E30 BKN 250 BKN 30 176/79/66/2611G16/005/ HAZY/ 8/201 56021 10080 20068   SUMMARY FOR TUESDAY, SEPTEMBER 10, 2019 TEMPERATURE (DEGREES F) MAX.....73   NORMAL.....74 MIN.....57   NORMAL.....57 MEAN....65   NORMAL.....65 DEPARTURE FROM 30-YEAR NORMAL......................0 TOTAL DEPARTURE FOR THE MONTH.....................-21 [-2.3 DEGREES/DAY] HEATING DEGREE DAYS (SEASON AUG TO JUL) TOTAL HEATING UNITS FOR YESTERDAY...............0   DEPARTURE.........-2 TOTAL HEATING UNITS FOR THE MONTH..............16   DEPARTURE........ -1 TOTAL HEATING UNITS FOR THE SEASON.............28   DEPARTURE........-14 TOTAL HEATING UNITS LAST SEASON TO DATE........18   DEPARTURE........+10 COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY...............0   DEPARTURE.........-3 TOTAL COOLING UNITS FOR THE MONTH..............12   DEPARTURE........-20 TOTAL COOLING UNITS FOR THE SEASON............631   DEPARTURE........+62 TOTAL COOLING UNITS LAST SEASON TO DATE.......822   DEPARTURE.......-191 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY....................25 S   AT 11:53 P.M.                    AERO.........................25 S   AT 11:53 P.M.                    ASOS.........................26 SSW AT 11:54 P.M.                    DAVIS........................28 S   AT 11:31 P.M. RMY N/A FASTEST MILE FOR YESTERDAY......................20 S   AT 11:58 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................20 SSW AT 11:55 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................19 S   AT 11:55 P.M. AVERAGE WIND SPEED AND DIRECTION...............6.8 S                    ASOS........................7.2                    DAVIS.......................6.7 S      [173 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..........0.67  DEPARTURE......-0.55                          ASOS..............0.67 TOTAL PRECIPITATION FOR THE YEAR..........37.82  DEPARTURE......+1.57                          ASOS.............37.70 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/+2/0.34/367/43               32 SSW AERO 35 SSW RMY 35 8/08  84/67/76/+4/0.44/588/69               30 SW  AERO 24 WNW RMY 29 8/09  82/63/73/+1/0.00/815/96               28 NW  AERO 25 NW  RMY 26 8/10  78/59/69/-2/0.00/720/85               32 NW  AERO 28 NW  RMY 28 8/11  78/55/67/-4/0.00/734/87               28 W   AERO 25 W   RMY 28 8/12  82/60/71/0/0.00/749/89                25 W   AERO 23 W   RMY 26 8/13  77/66/72/+1/0.02/059/07               25 W   AERO 24 WSW RMY 24 8/14  75/62/69/-2/T/452/54                  24 ENE AERO 22 ENE RMY 22 8/15  77/59/68/-3/0.02/568/68               17 ESE AERO 15 SSE RMY 16 8/16  78/61/70/-1/0.00/740/89               20 E   AERO 17 ESE RMY 18 8/17  78/67/73/+2/0.01/099/12               14 SE  AERO 15 SE  RMY 15 8/18  88/70/79/+8/0.00/529/64               18 SSW AERO 18 SSW RMY 21 8/19  92/69/81/+11/0.03/536/65              25 WSW AERO 23 WSW RMY 25 8/20  87/66/77/+7/0.00/797/97               18 W   AERO 14 WSW RMY N/A 8/21  85/68/77/+7/0.12/287/35               33 SW  AERO 32 SW  RMY 33 8/22  88/68/78/+8/0.00/522/64               25 W   AERO 21 W   RMY 26 8/23  78/60/69/-1/0.04/016/02               23 N   AERO 18 N   RMY 24 8/24  72/55/64/-6/0.00/803/99               25 ENE AERO 21 ENE RMY 22 8/25  66/56/61/-8/0.00/590/73               31 ENE AERO 25 ENE RMY 29 8/26  71/51/61/-8/0.00/717/89               25 NE  AERO 21 NE  RMY 25 8/27  77/54/66/-3/0.00/530/66               18 SSW AERO 18 SSW RMY 17 8/28  78/59/69/0/0.66/184/23                21 SSE AERO 18 SSE RMY 20 8/29  83/63/73/+4/0.15/614/77               25 WNW AERO 21 WNW RMY 26 8/30  84/59/72/+4/0.00/739/93               30 SW  AERO 30 SW  RMY 28 8/31  79/61/70/+2/0.00/602/76               21 W   AERO 18 W   RMY 20 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 9/01  73/56/65/-3/0.00/.../..                21 ENE AERO 14 ENE RMY 18 9/02  75/57/66/-2/0.37/.../..                39 W   AERO 41 W   RMY 41 9/03  77/61/69/+2/0.00/.../..                18 S   AERO 16 S   RMY N/A 9/04  83/61/72/+5/0.00/.../..                30 SW  AERO 28 SW  RMY 30 9/05  68/54/61/-6/0.00/.../..                23 NW  AERO 17 NW  RMY N/A 9/06  65/56/61/-6/..../.../..                37 ENE AERO 36 ENE RMY 36 9/07  70/51/61/-5/0.00/.../..                37 N   AERO 37 N   RMY N/A 9/08  73/53/63/-3/0.00/.../..                25 W   AERO 21 W   RMY N/A 9/09  71/54/63/-3/0.00/.../..                17 SE  AERO 16 SE  RMY 16 9/10  73/57/65/0/0.00/.../..                 25 S   AERO 25 S   RMY N/A 9/11 Low temp since midnight is 63F; normal low is 56F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR SEPTEMBER 11 HIGH 93F IN 1983, 2013 LOW 37F IN 1917 PRECIP 5.23 INCHES IN 1954 (HURRICANE EDNA) PEAK GUST 101 MPH NW IN 1954 (HURRICANE EDNA) RECORDS FOR SEPTEMBER 12 HIGH 92F IN 1961 LOW 42F IN 1958,1967,1985 PRECIP 2.79 INCHES IN 1960 (HURRICANE DONNA) PEAK GUST 140 MPH SSE IN 1960 (HURRICANE DONNA) TODAY'S REPORT PREPARED BY: Matt Douglas