BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY WEDNESDAY, JULY 3, 2019 ALL TIMES ARE IN EASTERN STANDARD TIME HAZY AND HOT WITH CONDITIONS DRYING OUT IN THE AFTERNOON.... We observed a visibility of 30 miles today with significant haze. Conditions have dried throughout the day, with a humidity below 40% at the 1 P.M. observation. Wind has remained light, shifting from north to northwest. The highest gust so far today is 12 mph. The high so far today is 88F, which is 8 degrees above the average daily maximum. The low since midnight is 67F, five degrees above the daily normal minimum of 62F.     PRELIMINARY STATS FOR JUNE 2019 TEMPERATURE, Deg. F Avg. Max. 75.1 [+0.1] Avg. Min. 57.3 [+0.2] Mean      66.2 [+0.1] 24-hour corrected mean: 66.0 Max. for month: 88F on the 28th Min. for month: 45F on the 4th COOLING DEGREE DAYS Total cooling units:    81 [-24] Total for the season:   89 [-40] Total for last season: 159 HEATING DEGREE DAYS Total cooling units:     36  [-37] Total for the season:  6254 [-122] Total for last season: 5916 PRECIPITATION, Inches Total: 4.08 [-0.23] Greatest in 24 hrs: N/A WIND, mph Avg. uncorrected wind speed: 9.9 Avg. corrected wind speed: 10.5 Prevailing wind direction: S at 17% Peak gust and direction: 41 W on 3rd   SUNSHINE: Campbell-Stokes card minutes: N/A Astronomical total minutes:   N/A Today's Observations: 7 A.M. Weather: Broken cirrocumulus Temperature: 74F; Dew Point: 64F; Wind: N at 9 kts Sea-level pressure: 29.85 ins. Hg, rising steadily Visibility: 30 miles, hazy 6-hr Max temp: 74F 6-hr Min temp: 67F 24-hr Precip: 0.00 ins. BHO SA 1155 E260 BKN 30 108/74/64/3509/985/ HAZY/ 8/009 51017 10074 20067 10 A.M. Weather: Scattered altostratus, few cumulus Temperature: 82F; Dew Point: 59F; Wind: NW at 5 kts, Wind: Light Sea-level pressure: 29.88 ins. Hg, rising steadily Visibility: 30 miles, hazy 3-hr Precip: 0.00 ins. BHO SA 1455 220 SCT 30 118/82/59/3205/988/ FEW CU ALQDS HAZY WND LGT/ 8/110 51010 1 P.M. Weather: Scattered cumulus Temperature: 88F; Dew Point: 56F; Wind: WNW at 7 kts Sea-level pressure: 29.88 ins. Hg, steady Visibility: 30 miles, hazy 6-hr Max temp: 88F 6-hr Min temp: 74F 6-hr Precip: 0.00 ins. BHO SA 1755 40 SCT 30 118/88/56/2907/988/ HAZY/ 8/100 58000 10088 20074 SUMMARY FOR TUESDAY, JULY 2, 2019 TEMPERATURE (DEGREES F) MAX.....82   NORMAL.....79 MIN.....65   NORMAL.....62 MEAN....74   NORMAL.....70 DEPARTURE FROM 30-YEAR NORMAL......................+4   TOTAL DEPARTURE FOR THE MONTH......................+5 [+2.3 DEGREES/DAY] COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY...............9   DEPARTURE.........-3 TOTAL COOLING UNITS FOR THE MONTH..............15   DEPARTURE.........+3 TOTAL COOLING UNITS FOR THE SEASON............103   DEPARTURE........-38 TOTAL COOLING UNITS LAST SEASON TO DATE.......191   DEPARTURE........-88 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY....................23 W   AT  1:42 P.M.                    AERO.........................23 W   AT  1:43 P.M.                    ASOS.........................23 W   AT  1:44 P.M.                    DAVIS........................24 W   AT  1:34 P.M. RMY 23 FASTEST MILE FOR YESTERDAY......................16 W   AT  2:03 P.M MAXIMUM 2-MINUTE ASOS AVERAGE...................16 W   AT  4:14 P.M MAXIMUM 2-MINUTE DAVIS AVERAGE..................17 W   AT  2:03 P.M AVERAGE WIND SPEED AND DIRECTION..............10.2 W                    ASOS.......................10.6                    DAVIS......................11.1 W [269 deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE......-0.11                          ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........0.00  DEPARTURE......-0.22                          ASOS..............0.00 TOTAL PRECIPITATION FOR THE YEAR..........29.87  DEPARTURE......+2.68                          ASOS.............29.77 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 71/54/63/+1/0.00/551/61               21 E   AERO 20 E   RMY 18 06/02 75/51/63/+1/..../417/46               23 S   AERO 21 S   RMY N/A 06/03 69/50/60/-2/..../753/83               41 W   AERO 39 W   RMY 43 06/04 70/45/58/-5/0.00/717/79               29 W   AERO 23 W   RMY N/A 06/05 81/57/69/+6/..../527/58               33 SSW AERO 33 SSW RMY N/A 06/06 75/64/70/+6/..../428/47               28 SSW AERO 28 SSW RMY N/A 06/07 80/59/70/+6/0.00/692/76               23 S   AERO 23 S   RMY 22 06/08 78/57/68/+4/0.00/885/97               23 ENE AERO 21 SW  RMY 21 06/09 78/55/67/+3/0.00/840/93               22 S   AERO 21 S   RMY 21 06/10 79/54/67/+2/..../712/78               26 SSE AERO 25 SSE RMY 33 06/11 73/58/66/+1/..../247/27               32 NW  AERO 30 NW  RMY 35 06/12 75/52/64/-1/..../869/95               25 SSW AERO 25 S   RMY 28 06/13 55/49/52/-13/..../000/00              36 NE  AERO 35 NE  RMY 35 06/14 72/50/61/-5/0.00/540/59               38 W   AERO 39 W   RMY 38 06/15 79/54/67/+1/0.00/879/96               38 SSW AERO 41 SSW RMY 40 06/16 70/62/66/0/..../000/00                32 SW  AERO 35 SW  RMY N/A 06/17 74/62/68/+1/..../348/38               12 SSE AERO 18 NW  RMY 17 06/18 71/62/67/0/..../000/00                17*S   AERO 17 S   RMY 16 06/19 74/61/68/+1/..../101/11               16 SSE AERO 20 SSE RMY 19 06/20 69/61/65/-3/..../000/00               26 S   AERO 26 S   RMY 29 06/21 68/58/63/-5/..../018/02               32 NW  AERO 28 NW  RMY 33 06/22 77/56/67/-1/..../779/85               33 NW  AERO 32 NW  RMY 35 06/23 82/59/71/+3/..../871/95               30 NW  AERO 25 WNW RMY 29 06/24 84/61/73/+4/..../.../..               22 NW  AERO 21 NW  RMY 22 06/25 73/61/67/-2/0.18/.../..               35 S   AERO 37 S   RMY 37 06/26 77/64/71/+2/0.00/.../..               12 ENE AERO 18 SE  RMY N/A 06/27 81/57/69/0/0.00/.../..                21 NE  AERO 18 NE  RMY N/A 06/28 88/64/76/+6/.../.../..                16 SW  AERO 18 SW  RMY N/A 06/29 80/66/73/+3/.../.../..                25 W   AERO 25 W   RMY 26 06/30 75/59/67/-3/.../.../..                31 N   AERO 30 N   RMY 35 *Estimated 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 83/58/71/+1/0.00/.../..               21 NNW AERO 21 NNW RMY N/A 07/02 82/65/74/+4/0.00/.../..               23 W   AERO 23 W   RMY 23 07/03 Low temp since midnight is 67F; normal low is 62F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JULY 3 HIGH 99F IN 1911 LOW 47F IN 1914 PRECIP 1.36 IN 1985 PEAK GUST 52 MPH NW IN 1963 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 TODAY'S REPORT PREPARED BY: Benjamin Turner