BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, AUGUST 25, 2021 ALL TIMES ARE IN EASTERN STANDARD TIME SUNRISE: 0502E SUNSET:  1830E   HOT AND HUMID WITH PARTLY CLOUDY SKIES.... Today was partly cloudy with an average visibility of 40 miles due to haze. Wind was light and variable with an average speed of 3 mph and a max gust of 14 mph much earlier on in the day. Pressure rose overnight, but conditions remained humid with dew points hanging in the low 70's and upper 60's. Not the best weather for a hike! The high so far today is 89F, 10 degrees above the daily normal maximum of 79F. The low so far today is 70F, which is 8 degrees above the daily normal minimum of 62F. ---------------------------------------------------- Today's Observations: 7 A.M. Weather: scattered altocumulus/altostratus and cirrostratus Temperature: 74F; Dew Point: 68F; Relative Humidity: 83% Wind: N @ 8 kts Sea-level pressure: 1019.4 mb; 30.10 in. Hg; rising then rising more slowly Visibility: 25 miles, Hazy 6-hr Max temp: 74F 6-hr Min temp: 70F 24-hr Precip: Trace BHO SA 1155 65 SCT 250 SCT 25 194/74/68/0108/010/ HAZY/ 8/086 70000 51017 10074 20070 10 A.M. Weather: scattered cirrus Temperature: 83F; Dew Point: 70F; Relative Humidity: 67% Wind: W @ 3 kts, light and variable Sea-level pressure: 1019.8 mb; 30.11 in Hg; rising then steady Visibility: 40 miles 3-hr Precip: 0.00 ins. BHO SA 1455 250 SCT 40 198/83/70/2703/011/ WND L/V/ 8/086 51004 1 P.M. Weather: Scattered cumulus and cirrus Temperature: 87F, Dew point: 69F; Relative Humidity: 56% Wind: W @ 2 kts, light and variable Sea-level pressure: 1019.5 mb; 30.10 in Hg; rising slightly then falling Visibility: 45 miles 6-hr Max temp: 89F 6-hr Min temp: 74F 6-hr Precip: 0.00 ins. BHO SA 1755 55 SCT 250 SCT 45 195/87/69/2602/010/ WND L/V/ 8/101 58003 10089 20074 SUMMARY FOR TUESDAY, AUGUST 24, 2021 TEMPERATURE (DEGREES F) MAX.......86     NORMAL.....79 MIN.......67     NORMAL.....62 MEAN......77     NORMAL.....71 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL...........+6 TOTAL DEPARTURE FOR THE MONTH.......................+38 [+1.4 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022) TOTAL HEATING UNITS FOR YESTERDAY................0  DEPARTURE.........0 TOTAL HEATING UNITS FOR THE MONTH................0  DEPARTURE........-7 TOTAL HEATING UNITS FOR THE SEASON..............27  DEPARTURE.......+14 TOTAL HEATING UNITS LAST SEASON TO DATE..........1  DEPARTURE.......+28 COOLING DEGREE DAYS (SEASON: JAN 2021 THRU DEC 2021) TOTAL COOLING UNITS FOR YESTERDAY...............12  DEPARTURE........+6 TOTAL COOLING UNITS FOR THE MONTH..............206  DEPARTURE.......+34 TOTAL COOLING UNITS FOR THE SEASON.............585  DEPARTURE.......+27 TOTAL COOLING UNITS LAST SEASON TO DATE........735  DEPARTURE......-150 PEAK WIND GUST (MPH):                      Official...................21 NNW @  5:48 A.M.                      AEROVANE (south tower).....21 NNW @  5:05 A.M.                      VECTOR #2 (south tower)....24     @  5:45 A.M.                      DAVIS #2 (south tower).....20 N   @  5:48 A.M.                      ASOS...........OUT OF SERVICE D/T RENOVATIONS                      VECTOR #1......OUT OF SERVICE D/T RENOVATIONS                      DAVIS #1.......OUT OF SERVICE D/T RENOVATIONS                      RMY............OUT OF SERVICE D/T RENOVATIONS                        MERLIN.........OUT OF SERVICE D/T RENOVATIONS FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL..................15 NNW @  5:52 A.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE..............15     @  5:53 A.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE...............14 N   @  5:53 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......OUT OF SERVICE D/T RENOVATIONS MAXIMUM 2-MINUTE DAVIS #1 AVERAGE...OUT OF SERVICE D/T RENOVATIONS MAXIMUM 2-MINUTE VECTOR #1 AVERAGE..OUT OF SERVICE D/T RENOVATIONS MAXIMUM 2-MINUTE RMY AVERAGE........OUT OF SERVICE D/T RENOVATIONS AVERAGE WIND SPEED AND DIRECTION:                      CONTACTING/OFFICIAL.......7.8 NW  [188 total miles]                      VECTOR #2.................8.8                      DAVIS #2..................8.5                      RMY.................OUT OF SERVICE D/T RENOVATIONS                      ASOS................OUT OF SERVICE D/T RENOVATIONS                      VECTOR #1...........OUT OF SERVICE D/T RENOVATIONS                      DAVIS #1............OUT OF SERVICE D/T RENOVATIONS    PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M......TRACE  DEPARTURE....-0.12 TOTAL PRECIPITATION FOR THE MONTH.............5.35  DEPARTURE....+2.27 TOTAL PRECIPITATION FOR THE YEAR.............40.32  DEPARTURE....+6.80 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 08/01   77/58/68/-5/T/589/68             23 SSW AERO 24 SSW RMY N/A 08/02   78/61/70/-3/T/821/95             28 WNW AERO 28 WNW RMY N/A 08/03   76/60/68/-5/0.00/302/35          15 N   AERO 16 N   RMY N/A 08/04   75/61/68/-5/0.71/077/09          21 ESE AERO 21 ESE RMY N/A 08/05   68/61/65/-8/1.68/000/00          28 NE  AERO 28 NE  RMY N/A 08/06   85/62/74/+1/0.00/727/85          19 S   AERO 20 WSW RMY N/A 08/07   88/66/77/+4/0.00/520/61          23 SW  AERO 23 SW  RMY N/A 08/08   80/67/74/+2/T/128/15             16 SW  AERO 16 WNW RMY N/A 08/09   75/64/70/-2/0.25/076/09          22 ENE AERO 21 NE  RMY N/A 08/10   78/63/71/-1/0.12/203/24          19 S   AERO 20 S   RMY N/A 08/11   89/70/80/+8/0.00/667/79          29 SSW AERO 28 SSW RMY N/A 08/12   91/71/81/+9/T/580/69             36 WSW AERO 37 WSW RMY N/A TSTM 08/13   92/73/83/+11/0.00/696/83         18 WSW AERO 18 WSW RMY N/A 08/14   87/69/78/+6/T/601/72             25 W   AERO 25 NNW RMY N/A 08/15   80/62/71/-1/0.00/800/96          19 NNW AERO 20 NNW RMY N/A 08/16   78/59/69/-3/0.00/564/68          15 S   AERO 15 S   RMY N/A 08/17   82/63/73/1/0.00/555/67           22 SSW AERO 23 SSW RMY N/A 08/18   86/66/76/+5/0.00/338/41          21 SSW AERO 22 SSW RMY N/A 08/19   81/69/75/+4/0.62/222/27          41 S   AERO 43 S   RMY N/A 08/20   78/70/74/+3/0.01/.../..          21 WSW AERO N/A    RMY N/A 08/21   86/69/78/+7/0.00/.../..          17 S   AERO 17 S   RMY N/A 08/22   74/66/70/-1/0.78/.../..          47 ESE AERO 48 ESE RMY N/A 08/23   83/68/76/+5/1.17/.../..          25 SSE AERO 26 SSE RMY N/A TSTM 08/24   86/67/77/+6/0.01/.../..          21 NNW AERO 21 NNW RMY N/A 08/25   The low since midnight is 70F, 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 AUGUST 25 HIGH 93F IN 1947, 1948, 2007 LOW 41F IN 1940 PRECIP 2.69 INCHES IN 2010 PEAK GUST 60e MPH SSW IN 1941 RECORDS FOR AUGUST 26 HIGH 96F IN 1900, 1948 LOW 46F IN 1885 PRECIP 5.85 INCHES IN 1924 PEAK GUST 55e MPH NNW IN 1947 TODAY'S REPORT PREPARED BY: Benjamin Turner and Augustin Busschaert