BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA THURSDAY, JULY 9, 2020 ALL TIMES ARE IN EASTERN STANDARD TIME HAZY AND HOT WITH A LIGHT SOUTHWESTERLY BREEZE.... Today was considerably hazy, with the visibility barely reaching 35 miles by the 1 P.M. observation. There is a light yet consistent wind from the southwest, with a max gust of only 13 mph for the past 6 hours. Cloud cover has increased since this morning, with taller cumulus like the ones seen yesterday.   The high so far today is 88 degrees, this is 7 degrees above the daily normal high of 81F. The low since midnight is 70F, which is 7 degrees above the daily normal low of 63F. PRELIMINARY STATS FOR JUNE 2020 TEMPERATURE, Deg. F Avg. Max. 78.0 [+3.0] Avg. Min. 59.1 [+2.0] Mean      68.6 [+2.5] 24-hour corrected mean: 67.5 Max. for month: 90F on the 20th Min. for month: 42F on the 1st HEATING DEGREE DAYS Total heating units:     40 [-33] Total for the season:  5852 [-402] Total for last season: 6254 COOLING DEGREE DAYS Total cooling units:    152  [+47] Total for the season:   184  [+55] Total for last season:  89 PRECIPITATION, Inches Total: 7.56 [+3.25] 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:   S [15%] Peak gust and direction:     55 SW on the 6th SUNSHINE: Campbell-Stokes card minutes: 15996 minutes of a possible 26376 or 61% Astronomical total minutes: 16650 minutes of a possible 27422 or 61% Today's Observations: 7 A.M. Weather: Broken stratocumulus and cirrostratus Temperature: 75F; Dew Point: 70F; Relative Humidity: 85% Wind: WSW at 8 kts Sea-level pressure: 30.01 ins. Hg: rising steadily Visibility: 15 miles, hazy 6-hr Max temp: 75F 6-hr Min temp: 70F 24-hr Precip: 0.00 ins. BHO SA 1155 E30 BKN 250 BKN 15 162/75/70/2508/001/ HAZY/ 8/408 53012 10075 20070 10 A.M. Weather: Broken cumulus and cirrocumulus Temperature: 82F; Dew Point: 72F; Relative Humidity: 72% Wind: SSW at 5 kts, light   Sea-level pressure: 30.02 ins. Hg: falling then rising Visibility: 20 miles, hazy 3-hr Precip:  0.00 ins. BHO SA 1455 E30 BKN 250 BKN 20 166/82/72/2005/002/ HAZY WND LGT/ 8/209 50004 1 P.M. Weather: Broken cumulus and cirrus Temperature: 87F; Dew Point: 72F; Relative Humidity: 61% Wind: SSW at 7 kts Sea-level pressure: 30.01 ins. Hg: rising then falling Visibility: 35 miles, hazy 6-hr Max temp: 88F 6-hr Min temp: 75F 6-hr Precip:  0.00 ins. BHO SA 1755 E30 BKN 250 BKN 35 163/87/72/2207/001/ HAZY/ 8/206 55003 10088 20075 SUMMARY FOR WEDNESDAY, JULY 8, 2020 TEMPERATURE (DEGREES F) MAX.....83   NORMAL.....80 MIN.....64   NORMAL.....63 MEAN....74   NORMAL.....72 DEPARTURE FROM 30-YEAR NORMAL................. +2 TOTAL DEPARTURE FOR THE MONTH................. -3 [-0.6 DEGREES/DAY] COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY..................9  DEPARTURE....... +2 TOTAL COOLING UNITS FOR THE MONTH.................44  DEPARTURE........-7 TOTAL COOLING UNITS FOR THE SEASON.............. 228  DEPARTURE.......+48 TOTAL COOLING UNITS LAST SEASON TO DATE..........169  DEPARTURE.......+59 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY....................32 S   AT  3:44 P.M.                      AERO.........................32 S   AT  3:40 P.M.                     ASOS.........................32 SW  AT  3:45 P.M.                    DAVIS........................32 SW  AT  4:34 P.M RMY 32 FASTEST MILE FOR YESTERDAY......................22 SSW AT  3:42 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................22 SSW AT  3:49 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................22 SSW AT  3:49 P.M. AVERAGE WIND SPEED AND DIRECTION..............12.0 S                               ASOS.......................12.8                    DAVIS......................11.4 SSW [208 deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE......-0.12                          ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........0.55  DEPARTURE......-0.33                          ASOS..............0.55 TOTAL PRECIPITATION FOR THE YEAR..........27.90  DEPARTURE......+0.05                          ASOS.............28.56 PRELIMINARY CLIMATE SUMMARY FOR JUNE 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 06/01  64/42/53/-9/T/0.0/724/80            28 WNW  AERO 29 WNW RMY 28 06/02  72/45/59/-3/..../0.0/689/76         28 W    AERO 27 W   RMY 28 06/03  79/55/67/+5/T/0.0/400/44            29 W    AERO 28 W   RMY 26 06/04  87/62/75/+12/..../0.0/673/74        26 W    AERO 25 S   RMY N/A 06/05  80/65/73/+10/..../0.0/300/33        28 SSW  AERO 28 SSW RMY N/A TSTM 06/06  86/57/72/+9/..../0.0/301/33         55 SW   AERO 59 SW  RMY 59  TSTM 06/07  68/54/61/-3/0.00/0.0/255/28         24 NW   AERO 24 NW  RMY N/A 06/08  77/51/64/0/0.00/0.0/866/95          25 W    AERO 24 W   RMY 25 06/09  77/60/69/+5/T/0.0/110/12            23 E    AERO 21 E   RMY N/A 06/10  70/58/64/-1/T/0.0/658/72            25 E    AERO 24 E   RMY N/A 06/11  71/64/68/+3/0.62/0.0/165/18         40 S    AERO 40 S   RMY 42 06/12  82/63/73/+8/0.00/0.0/705/77         26 W    AERO 25 W   RMY 27 06/13  71/53/62/-3/0.00/0.0/669/73         21 WNW  AERO 20 WNW RMY N/A             06/14  67/49/58/-8/0.00/0.0/852/93         21 E    AERO 21 ENE RMY 21 06/15  67/53/60/-6/5/0/0.0/696/76          21 NE   AERO 16 ENE RMY 20 06/16  73/54/64/-2/0.00/0.0/889/97         18 E    AERO 18 E   RMY 18 06/17  78/57/68/+1/0.00/0.0/889/97         20 S    AERO 20 S   RMY 20 06/18  86/59/73/+6/0.00/0.0/715/78         22 S    AERO 22 SSW RMY 22 06/19  86/66/76/+9/0.00/0.0/789/86         22 S    AERO 22 S   RMY 21 06/20  90/65/78/+10/0.00/0.0/834/91        22 S    AERO 21 S   RMY 21 06/21  90/66/78/+10/0.83/0.0/514/56        33 ESE  AERO 35 ESE RMY 33  TSTM 06/22  77/65/71/+3/0.00/0.0/761/83         15 E    AERO 17 S   RMY 14 06/23  85/65/75/+7/0.00/0.0/431/47         27 S    AERO 24 S   RMY 26 06/24  84/66/75/+6/0.00/0.0/348/38         25 S    AERO 24 S   RMY 25 06/25  84/63/74/+5/0.00/0.0/806/88         29 W    AERO 29 W   RMY 29 06/26  83/65/74/+5/0.02/0.0/769/84         25 S    AERO 25 S   RMY 27 06/27  82/65/74/+5/0.05/0.0/330/36         21 S    AERO 20 S   RMY 20 06/28  84/62/73/+3/3.27/0.0/421/46         35 W    AERO 33 N   RMY 37  TSTM 06/29  71/61/66/-4/..../0.0/064/07         18 NE   AERO 18 NE  RMY 18  TSTM 06/30  68/62/65/-5/..../.../027/03         14 ENE  AERO 14 ENE RMY 13 Record rainfall on the 28th of 3.27". Old record 2.09" in 1938 PRELIMINARY CLIMATE SUMMARY FOR JULY 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 07/01  76/63/70/0/0.00/.../.../..          16 E    AERO 14 E   RMY 14  TSTM 07/02  86/61/74/4/0.00/.../.../..          30 WSW  AERO 25 WSW RMY 33 07/03  73/60/67/-4/0.00/.../.../..         30 NE   AERO 28 NE  RMY 30 07/04  79/60/70/-1/0.00/.../..             16 S    AERO 16 S   RMY 16 07/05  83/63/73/+2/0.54/.../..             24 NW   AERO 30 NW  RMY 26  TSTM 07/06  73/60/67/-4/0.00/.../..             20 ENE  AERO 16 NNE RMY 18 07/07  78/60/69/-2/0.00/.../..             25 S    AERO 25 S   RMY 26 07/08  83/64/74/+2/0.00/.../..             32 SSW  AERO 32 SSW RMY 32 07/09 The low since midnight is 70F, the daily normal low is 63F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR JULY 9 HIGH 98F IN 1912 LOW 47F IN 1909 PRECIP 3.74 INS IN 1921 WIND 46 MPH NW IN 1992 RECORDS FOR JULY 10 HIGH 99F IN 1911 LOW 46F IN 1890 PRECIP 1.95 INS IN 2015 WIND 75 MPH W IN 1985 TODAY'S REPORT PREPARED BY: Benjamin Turner