BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA THURSDAY JUNE 3, 2021 ALL TIMES ARE IN EASTERN STANDARD TIME SUNRISE: 0408E SUNSET:  1916E MOSTLY CLOUDY AND COOL WITH LIMITED VISIBILITY.... We're experiencing a slightly cooler day today with mostly clouds. There was some sun breaking through the clouds in the afternoon hours. There was a light wind this morning, but wind has picked up slightly from the south. We are currently at an average of 20 mph with a max gust of almost 30 mph. Visibility hasn't been great today, generally hanging out between 35-40 miles due to haziness. The high so far today is 72F, which is a degree above the normal high of 71F. The low since midnight is 56F, which is 3 degrees above the daily normal low of 53F. PRELIMINARY STATS FOR MAY 2021 TEMPERATURE, Deg. F Avg. Max. 68.1 [+1.8] Avg. Min. 48.0 [+0.2] Mean      58.1 [+1.0] 24-hour corrected mean: 57.7 Max. for month: 87F on the 22nd, 23rd Min. for month: 38F on the 1st HEATING DEGREE DAYS Total heating units:    237 [-31] Total for the season:  5578 [-725] Total for last season: 5812 PRECIPITATION, Inches Total: 5.60 [+1.49] Greatest in 24 hrs: N/A WIND, mph Avg. uncorrected wind speed: 10.9 mph Avg. corrected wind speed:   11.4 mph Prevailing wind direction:   WNW [16%] Peak gust and direction:     44 ENE on the 29th SUNSHINE: Campbell-Stokes card minutes: 14478 minutes of a possible 26226 or 55% Astronomical total minutes: 14977 minutes of a possible 27188 or 55% Today's Observations: 7 A.M. Weather: Overcast stratocumulus Temperature: 60F; Dew Point: 56F; Relative Humidity: 85% Wind: S @ 8 kts Sea-level pressure: 30.13 in. Hg; rising then falling Visibility: 50 miles 6-hr Max temp: 60F 6-hr Min temp: 56F 24-hr Precip: 0.00 ins. BHO SA 1155 40 OVC 50 204/60/56/1908/013/ 8/8// 55000 10060 20056 10 A.M. Weather: Broken stratocumulus, overcast altostratus Temperature: 63F; Dew Point: 58F; Relative Humidity: 82% Wind: S @ 7 kts Sea-level pressure: 30.09 in Hg; falling steadily Visibility: 50 miles 3-hr Precip: 0.00 ins. BHO SA 1455 40 BKN 100 OVC 50 191/63/58/1907/009/ 8/87/ 58013 1 P.M. Weather: Broken stratocumulus and altocumulus Temperature: 71F, Dew point: 63F; Relative Humidity: 75% Wind: SSW @ 11G22 kts Sea-level pressure: 30.03 in Hg; falling, then more rapidly Visibility: 35 miles, hazy 6-hr Max temp: 72F 6-hr Min temp: 60F 6-hr Precip: 0.00 ins. BHO SA 1755 40 BKN 140 BKN 35 170/71/63/2011G22/003/ HAZY/ 8/870 56021 10072 20060 SUMMARY FOR WEDNESDAY, JUNE 2, 2021 TEMPERATURE (DEGREES F) MAX.......80     NORMAL.....71 MIN.......55     NORMAL.....53 MEAN......68     NORMAL.....62 DEPARTURE FROM 30-YEAR (1981-2010) NORMAL.......+6 TOTAL DEPARTURE FOR THE MONTH...................+6 [+2.8 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL THRU JUN) TOTAL HEATING UNITS FOR YESTERDAY............... 0  DEPARTURE...... -5 TOTAL HEATING UNITS FOR THE MONTH............... 3  DEPARTURE...... -7 TOTAL HEATING UNITS FOR THE SEASON............5581  DEPARTURE.....-731 TOTAL HEATING UNITS LAST SEASON TO DATE.......5824  DEPARTURE.....-249 COOLING DEGREE DAYS (SEASON JAN THRU DEC) TOTAL COOLING UNITS FOR YESTERDAY............... 3  DEPARTURE.......+1 TOTAL COOLING UNITS FOR THE MONTH............... 3  DEPARTURE.......-0 TOTAL COOLING UNITS FOR THE SEASON..............32  DEPARTURE.......+5 TOTAL COOLING UNITS LAST SEASON TO DATE.........32  DEPARTURE........0 PEAK WIND GUST (MPH):                      420C/Official..............28 S   @  4:48 P.M.                      AEROVANE (south tower).....25 S   @  5:17 P.M.                      ASOS.......................26 S   @  4:56 P.M.                      DAVIS #1...................26 S   @  5:17 P.M.                      DAVIS #2 (south tower).....34 SSE @  5:17 P.M.                      RMY........................28     @  4:55 P.M.                      VECTOR.....................29     @  5:15 P.M.                      MERLIN.....................26 FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL..................20 S   @  4:56 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................20 S   @  4:57 P.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE...............19 S   @  4:56 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE...............23 S   @  4:56 P.M. MAXIMUM 2-MINUTE RMY AVERAGE....................20 S   @  4:53 P.M. MAXIMUM 2-MINUTE VECTOR AVERAGE.................20     @  4:53 P.M. AVERAGE WIND SPEED AND DIRECTION:                      CONTACTING/OFFICIAL.......9.4 S [225 total miles]                      ASOS......................9.5                      DAVIS #1..................9.3 SW                      DAVIS #2.................10.1 SW                      RMY.......................9.2 SSW                      VECTOR....................9.8 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.......0.00  DEPARTURE....-0.16                              ASOS.............0.00 TOTAL PRECIPITATION FOR THE MONTH.............0.00  DEPARTURE....-0.33                              ASOS.............0.00 TOTAL PRECIPITATION FOR THE YEAR.............20.66  DEPARTURE....-2.33                               ASOS...........20.86 PRELIMINARY CLIMATE SUMMARY FOR MAY CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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 05/01   62/38/50/-3/0.06/0.0/659/78       31 WNW  AERO 35 WNW  RMY 40 05/02   76/48/62/+9/0.01/0.0/220/26       41 SW   AERO 41 SW   RMY 46 05/03   67/48/58/+5/0.07/0.0/400/47       21 E    AERO 20 E    RMY 20 05/04   50/44/47/-7/0.78/0.0/000/00       36 NNE  AERO 32 NNE  RMY 37 05/05   48/44/46/-8/0.47/0.0/000/00       18 ESE  AERO 14 ESE  RMY 17 05/06   64/45/55/+1/0.00/0.0/780/91       33 NW   AERO 38 NNW  RMY 39 05/07   61/43/52/-3/0.00/0.0/516/60       28 ESE  AERO 22 ESE  RMY 26 05/08   54/40/47/-8/0.00/0.0/069/08       24 SSW  AERO 23 SSW  RMY 25 05/09   66/42/54/-1/T/0.0/579/67          30 SW   AERO 29 SW   RMY 34 05/10   60/45/53/-2/0.39/0.0/078/09       21 W    AERO 20 W    RMY 20 05/11   63/45/54/-2/0.00/0.0/764/88       38 WNW  AERO 41 WNW  RMY 41 05/12   65/41/53/-3/0.00/0.0/722/83       28 NW   AERO M  M    RMY 31 05/13   69/45/57/+1/0.00/0.0/759/87       22 WNW  AERO 21 WNW  RMY 21 05/14   76/49/63/+8/0.00/0.0/725/83       23 WNW  AERO 23 WNW  RMY 25 05/15   75/55/65/+8/0.01/0.0/569/65       24 SSE  AERO 26 SSE  RMY 26 05/16   78/54/66/+9/0.01/0.0/483/55       36 W    AERO 37 W    RMY 42 05/17   77/52/65/+8/0.00/0.0/722/82       20 SSW  AERO 21 SSW  RMY 21 05/18   81/54/68/+10/T/0.0/600/68         32 W    AERO 30 W    RMY 32 05/19   75/55/65/+7/0.00/0.0/778/88       25 NE   AERO 23 NNE  RMY 27 05/20   75/52/64/+6/0.00/0.0/842/95       18 ESE  AERO 18 ESE  RMY 19 05/21   78/50/64/+5/T/0.0/524/59          23 S    AERO 22 S    RMY 26 05/22   87/56/72/+13/T/0.0/285/32         25 WNW  AERO 21 WNW  RMY 24 05/23   87/58/73/+14/T/0.0/687/77         38 NNW  AERO 37 NNW  RMY 40 05/24   70/49/60/+1/0.00/0.0/839/94       30 S    AERO 35 S    RMY 33 05/25   75/47/61/+1/0.00/0.0/761/85       31 SW   AERO 35 SW   RMY 34 05/26   86/57/72/+12/0.21/0.0/736/82      30 S    AERO 36 S    RMY 35 TSTM 05/27   79/57/68/+8/0.02/0.0/691/77       25 N    AERO 25 WNW  RMY 27 05/28   58/43/51/-10/1.00/0.0/162/18      28 ENE  AERO 32 ENE  RMY 27 05/29   46/42/44/-17/1.50/0.0/000/00      44 ENE  AERO 47 ENE  RMY 50 05/30   46/45/46/-15/0.87/0.0/000/00      37 NE   AERO 40 NE   RMY 40 05/31   57/46/52/-9/0.20/0.0/027/03       22 NNE  AERO 25 WNW  RMY 25 RECORDS FOR THE MONTH: Low maximum on the 30th of 46F, beating the old record of 51F set in 1996 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   74/50/62/0/0.00/.../..            20 WSW  AERO 24 WSW  RMY 22 06/02   80/55/68/+6/0.00/.../..           28 S    AERO 25 S    RMY 28 06/03   The low since midnight is 56F, the daily normal low is 53F   DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated) RECORDS FOR JUNE 3 HIGH 98F IN 1919 LOW 38F IN 1929 PRECIP 2.40 INS 2006 PEAK GUST 47 MPH NW IN 1998 RECORDS FOR JUNE 4 HIGH 99F IN 1919 [Record for month] LOW 41F IN 1915,1926 PRECIP 1.52 INS IN 2007 PEAK GUST 48 MPH SSE IN 1983 TODAY'S REPORT PREPARED BY: Benjamin Turner