BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA FRIDAY, SEPTEMBER 24, 2021 ALL TIMES ARE IN EASTERN STANDARD TIME SUNRISE: 0534E SUNSET:  1737E   OVERCAST WITH GUSTY SOUTHERLY WINDS... A very slow moving cold front is meandering eastward across the northeast bringing a prolonged period of cloudiness, wind, and humidity. Peak gust so far is 43 MPH out of the SSE. Daily average wind speed is cranking at 19 MPH! No sunshine observed so far today and the dew points are juiced up in the low 70s! Due to these impressive dew points, we are currently tied for the highest minimum temperature of 68F for this date as of this writing. Forecast models suggest, however, this value won't hold as we approach the nighttime hours, but an indication of how anomalously warm it is. With regards to precipitation, we noted a few brief passing sprinkles streaming up from the south. Only 0.01 inch was measured by 1PM. The high so far today is 74F, 4 degrees above the normal max of 70F. The low since midnight is 68F, a whopping 15 degrees above the normal low of 53F. -------------------------------------------------------------- Today's Observations: 7 A.M. Weather: Overcast Stratus (few bright spots in overcast distant NE-SE) Temperature: 72F; Dew Point: 70F; Relative Humidity: 94% Wind: S @ 20G30 kts Peak Wind: 35 MPH (30 kts) S @ 6:47 A.M. Sea-level pressure: 1016.8 mb; 30.03 in. Hg; steady, then falling Visibility: 15 miles, thin fog   6-hr Max temp: 72F 6-hr Min temp: 68F 24-hr Precip: 0.09 ins. BHO SA 1155 15 OVC 15 168/72/70/1820G30/003/ FEW BRGHT SPTS IOVC DSNT NE-SE THN F ALQDS PK WND 1830/47/ 8/6// 58009 70009 10072 20068 10 A.M. Weather: Overcast Stratus & Stratus Fractus (virga SSW-NNW) Temperature: 73F; Dew Point: 69F; Relative Humidity: 88% Wind: S @ 17G28kts Peak Wind: 35 MPH (30 kts) S @ 9:18 A.M. Sea-level pressure: 1017.4 mb; 30.004 in Hg; rising unsteadily Visibility: 15 miles (10 miles SSW-NNW), thin fog 3-hr Precip: 0.00 ins. BHO SA 1455 12 OVC 15 174/73/69/1817G28/004/ VSBY SSW-NNE 10 VIRGA SSW-NNW THN F ALQDS PK WND 1830/18/ 8/6// 52006 1 P.M. Weather: Scattered Stratus Fractus, Overcast Altocumulus/Altostratus (few breaks in overcast south, virga distant all quads) Temperature: 73F, Dew point: 70F; Relative Humidity: 90% Wind: S @ 18G28kts Peak Wind: 32 MPH (28 kts) S @ 12:45 P.M. Sea-level pressure: 1016.1 mb; 30.01 in Hg; Rising, then falling Visibility: 20 miles (thin fog) 6-hr Max temp: 74F 6-hr Min temp: 72F 6-hr Precip: 0.01 ins. BHO SA 1755 12 SCT 130 OVC 20 161/73/70/1818G28/001/ FEW BINOVC S VIRGA DSNT ALQDS THN F ALQDS PK WND 1828/45/ 8/65/ 58013 6001/ 10074 20072 SUMMARY FOR THURSDAY, SEPTEMBER 23, 2021 TEMPERATURE (DEGREES F) MAX.......78     NORMAL.....70 MIN.......65     NORMAL.....53 MEAN......72     NORMAL.....62 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL.............+10 TOTAL DEPARTURE FOR THE MONTH.........................+29 [+1.1 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022) TOTAL HEATING UNITS FOR YESTERDAY................0  DEPARTURE........-5 TOTAL HEATING UNITS FOR THE MONTH...............15  DEPARTURE.......-42 TOTAL HEATING UNITS FOR THE SEASON..............43  DEPARTURE.......-32 TOTAL HEATING UNITS LAST SEASON TO DATE.........97  DEPARTURE.......-54 COOLING DEGREE DAYS (SEASON: JAN 2021 THRU DEC 2021) TOTAL COOLING UNITS FOR YESTERDAY................7  DEPARTURE........+6 TOTAL COOLING UNITS FOR THE MONTH...............56  DEPARTURE.......-12 TOTAL COOLING UNITS FOR THE SEASON.............706  DEPARTURE.......+43 TOTAL COOLING UNITS LAST SEASON TO DATE........807  DEPARTURE......-101 PEAK WIND GUST (MPH):                      Official...................36 SSE @ 11:11 A.M.                      AEROVANE (south tower).....37 SSE @ 10:27 A.M.                      VECTOR #2 (south tower)....40     @ 10:17 A.M.                      DAVIS #2 (south tower).....41 S   @ 11:07 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..................29 SSE  @ 11:09 A.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE..............26      @ 11:12 A.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE...............30 S    @ 11:09 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.......15.8 SE [380 total miles]                      VECTOR #2.................16.0                      DAVIS #2..................15.8 SSE                      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.......0.09  DEPARTURE....-0.05 TOTAL PRECIPITATION FOR THE MONTH.............5.63  DEPARTURE....+2.62 TOTAL PRECIPITATION FOR THE YEAR.............45.97  DEPARTURE....+8.61 PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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 09/01   68/56/62/-7/1.47/000/00          34 NNE AERO 37 NNE RMY N/A     09/02   71/55/63/-6/2.53/322/41          49 ENE AERO 52 ENE RMY N/A 09/03   72/52/62/-6/0.00/735/94          23 NW  AERO 23 NW  RMY N/A 09/04   76/55/66/-2/0.00/757/97          22 WNW AERO 21 WNW RMY N/A 09/05   72/60/66/-2/0.04/008/01          27 S   AERO 29 S   RMY N/A 09/06   80/61/71/+3/0.00/.../..          24 WNW AERO 25 WNW RMY N/A 09/07   78/57/68/+1/0.00/.../..          23 WSW AERO 22 WSW RMY N/A 09/08   81/61/71/+4/0.00/.../..          43 S   AERO 45 S   RMY N/A 09/09   71/64/68/+1/0.90/.../..          33 S   AERO 36 S   RMY N/A 09/10   74/55/65/-1/0.04/.../..          31 NW  AERO 32 WNW RMY N/A 09/11   75/51/63/-3/0.00/.../..          24 SW  AERO 24 SW  RMY N/A 09/12   79/60/70/+4/0.00/.../..          33 SW  AERO 32 SW  RMY N/A 09/13   77/62/70/+5/0.06/.../..          22 NW  AERO 23 NW  RMY N/A 09/14   75/59/67/+2/0.00/.../..          23 S   AERO 25 S   RMY N/A 09/15   82/65/74/+9/T/.../..             32 SSW AERO 35 SSW RMY N/A 09/16   69/61/65/+1/0.27/.../..          24 ENE AERO 24 ENE RMY N/A TSTM       09/17   66/60/63/-1/0.02/.../..          22 NE  AERO 23 NE  RMY N/A 09/18   74/62/68/+5/0.04/.../..          17 WNW AERO 18 WNW RMY N/A TSTM 09/19   71/57/64/+1/0.15/.../..          23 NNE AERO 24 NNE RMY N/A 09/20   71/55/63/0/0.00/.../..           20 SE  AERO 20 SE  RMY N/A 09/21   75/55/65/+3/0.00/.../..          19 SSE AERO 20 SSE RMY N/A 09/22   75/65/70/+8/..../.../..          30 S   AERO 30 S   RMY N/A 09/23   78/65/72/+10/..../.../..         36 SSE AERO 37 SSE RMY N/A 09/24   The low since midnight is 68F, 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 SEPTEMBER 24 HIGH 87F IN 1959 LOW 33F IN 1885,1950,1963 PRECIP 1.19 INCHES IN 1955 PEAK GUST 54e MPH SW IN 1940 RECORDS FOR SEPTEMBER 25 HIGH 87F IN 1970 LOW 31F IN 1950 PRECIP 2.68 INCHES IN 1961 PEAK GUST 63 MPH SSW IN 1991 TODAY'S REPORT PREPARED BY: Andrew Swanson