BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SATURDAY, JULY 4, 2020 ALL TIMES ARE IN EASTERN STANDARD TIME FOGGY IN THE MORNING, WITH PARTLY CLOUDY SKIES IN THE AFTERNOON.... There was a significant fog this morning, limiting visibility to only a mile. As the day went on, visibility rose to 45 miles with a distant haze. Skies also became partly cloudy, with wind being very light from the north. Fireworks were seen in all directions, starting around 7:30 P.M.   The high so far today is 77 degrees, this is 3 degrees below the daily normal high of 80F. The low since midnight is 60F, which is 2 degrees below the daily normal low of 62F. Happy 4th of July!!!!! Today's Observations: 7 A.M. Weather: Overcast stratocumulus Temperature: 61F; Dew Point: 61F; Relative Humidity: 100% Wind: NNE at 4 kts, light and variable Sea-level pressure: 29.95 ins. Hg: steady, then rising Visibility: 1 mile, fog 6-hr Max temp: 61F 6-hr Min temp: 60F 24-hr Precip: 0.00 ins. BHO SA 1155 E15 OVC 1F 143/61/61/0304/995/ WND L/V/ 8/4// 51012 10061 20060 10 A.M. Weather: Broken stratocumulus, cirrus Temperature: 68F; Dew Point: 62F; Relative Humidity: 81% Wind: NNE at 4 kts, light and variable Sea-level pressure: 29.97 ins. Hg: rising, then more slowly Visibility: 40 miles 3-hr Precip:  0.00 ins. BHO SA 1455 20 BKN 250 BKN 40 148/68/62/0304/997/ WND L/V/ 8/402 53005 1 P.M. Weather: Scattered cumulus and cirrus Temperature: 76F; Dew Point: 64F; Relative Humidity: 67% Wind: NE at 2 kts, light and variable Sea-level pressure: 29.95 ins. Hg: falling, then steady Visibility: 45 miles 6-hr Max temp: 77F 6-hr Min temp: 61F 6-hr Precip:  0.00 ins. BHO SA 1755 40 SCT 250 SCT 45 142/76/64/0402/995/ WND L/V/ 8/102 58006 10077 20061 SUMMARY FOR FRIDAY, JULY 3, 2020 TEMPERATURE (DEGREES F) MAX.....73   NORMAL.....80 MIN.....60   NORMAL.....62 MEAN....67   NORMAL.....71 DEPARTURE FROM 30-YEAR NORMAL.................  -4 TOTAL DEPARTURE FOR THE MONTH.................  0 [-0.2 DEGREES/DAY] COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY................2  DEPARTURE........ +4 TOTAL COOLING UNITS FOR THE MONTH................16  DEPARTURE........-2 TOTAL COOLING UNITS FOR THE SEASON.............. 200  DEPARTURE.......+53 TOTAL COOLING UNITS LAST SEASON TO DATE..........117  DEPARTURE.......+83 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY....................30 NE  AT 8:15 A.M.                      AERO.........................28 NE  AT 8:15 A.M.                     ASOS.........................30 NE  AT 8:15 A.M.                    DAVIS........................30 ENE AT 8:15 A.M RMY 30 FASTEST MILE FOR YESTERDAY......................20 NE  AT 8:16 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................20 NE  AT 8:16 A.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................21 NE  AT 8:16 A.M. AVERAGE WIND SPEED AND DIRECTION..............10.8 NE                                ASOS.......................10.9                    DAVIS......................11.2 NE [36 deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE......-0.11                          ASOS..............0.01 TOTAL PRECIPITATION FOR THE MONTH..........0.00  DEPARTURE......-0.22                          ASOS..............0.01 TOTAL PRECIPITATION FOR THE YEAR..........27.35  DEPARTURE......+0.16                          ASOS.............28.02 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/0.0/000/00            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/-6/5/0/0.0/705/77          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/.../..         15 E    AERO 17 S   RMY 14 06/23  85/65/75/+7/0.00/0.0/.../..         27 S    AERO 24 S   RMY 26 06/24  84/66/75/+6/0.00/0.0/.../..         25 S    AERO 24 S   RMY 25 06/25  84/63/74/+5/0.00/0.0/.../..         29 W    AERO 29 W   RMY 29 06/26  83/65/74/+5/0.02/0.0/.../..         25 S    AERO 25 S   RMY 27 06/27  82/65/74/+5/0.05/0.0/.../..         21 S    AERO 20 S   RMY 20 06/28  84/62/73/+3/3.27/0.0/.../..         35 W    AERO 33 N   RMY 37  TSTM 06/29  71/61/66/-4/..../0.0/.../..         18 NE   AERO 18 NE  RMY 18  TSTM 06/30  68/62/65/-5/..../.../.../..         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 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 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 JULY 4 HIGH 98F IN 1911, 1919, 1949 LOW 48F IN 1914 PRECIP 2.48 IN 2014 PEAK GUST 50e MPH WNW IN 1949 RECORDS FOR JULY 5 HIGH 98F IN 1911 LOW 48F IN 1920, 1927 & 1979 PRECIP 1.45 INS IN 1922 PEAK GUST 44e N IN 1944 TODAY'S REPORT PREPARED BY: Benjamin Turner