BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SUNDAY, NOVEMBER 21, 2021 ALL TIMES ARE IN EASTERN STANDARD TIME SUNRISE: 0643E SUNSET: 1617E MILDER TODAY DESPITE A LOT OF CLOUD COVER LIMITING SUNSHINE.... Definitely more clouds than sun today, however it's not a bad day at all considering we're now into the final 3rd of November. Temperatures are milder today than the past couple with the mercury getting into the low 50s here on the summit. The wind has been blowing pretty steadily, enough to add a bit of a chill to the air especially with the elusive sunshine. The average speed so far today is around 11mph, with a peak gust of 23mph so far. Visibility has been fair today, averaging 50-60 miles. The high so far today is 51F, 3 degrees above the normal max of 48F. The low since midnight is 36F, 4 degrees above the normal low of 32F. -------------------------------------------------------------- Today's Observations: 7 A.M. Weather: Scattered stratocumulus, broken altostratus, overcast cirrostratus, virga all quadrants Temperature: 41F; Dew Point: 36F; Relative Humidity: 82% Wind: SW @ 8kts Sea-level pressure: 1027.9 mb; 30.35 in. Hg: steady, then falling Visibility: 50 miles 6-hr Max temp: 41F 6-hr Min temp: 36F 24-hr Precip: 0.00 ins. BHO SA 1155 45 SCT E150 BKN 200 OVC 50 279/41/36/2308/035/ VIRGA ALQDS/ 8/527 58003 10041 20036 10 A.M. Weather: Broken altostratus, overcast cirrostratus, few breaks in overcast overhead-SW-W, few stratocumulus NE-SE-S, virga all quadrants Temperature: 44F; Dew Point: 36F; Relative Humidity: 73% Wind: SW @ 6kts Sea-level pressure: 1027.2 mb; 30.33 in Hg; falling, then more rapidly Visibility: 50 miles 3-hr Precip: 0.00 ins. BHO SA 1455 E120 BKN 200 OVC 50 272/44/36/2206/033/ FEW BINOVC OVHD-SW-W FEW SC NE-SE-S VIRGA ALQDS SUN DMLY VSBL/ 8/517 58007 1 P.M. Weather: Scattered stratocumulus, broken altocumulus, overcast cirrostratus, few breaks in overcast all quadrants Temperature: 50F, Dew point: 39F; Relative Humidity: 65% Wind: SSW @ 8 kts Sea-level pressure: 1024.1 mb; 30.24 in Hg; falling steadily Visibility: 60 miles 6-hr Max temp: 51F 6-hr Min temp: 41F 6-hr Precip: 0.00 ins. BHO SA 1755 40 SCT 120 BKN 200 OVC 60 241/50/39/2008/024/ FEW BINOVC ALQDS/ 8/537 57031 10051 20041 SUMMARY FOR SATURDAY, NOVEMBER 20, 2021 TEMPERATURE (DEGREES F) MAX.......45 NORMAL.....49 MIN.......27 NORMAL.....32 MEAN......36 NORMAL.....40 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL............... -4 TOTAL DEPARTURE FOR THE MONTH........................... +43 [+2.0 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022) TOTAL HEATING UNITS FOR YESTERDAY...............29 DEPARTURE........+4 TOTAL HEATING UNITS FOR THE MONTH..............384 DEPARTURE.......-44 TOTAL HEATING UNITS FOR THE SEASON.............711 DEPARTURE......-229 TOTAL HEATING UNITS LAST SEASON TO DATE........771 DEPARTURE...... -60 PEAK WIND GUST (MPH): Official (1-Sec AVG).......23 S @ 6:31 P.M. AEROVANE...................23 S @ 6:31 P.M. VECTOR #2 (Instantaneous)..24 @ 6:31 P.M. DAVIS #2 ..................27 S @ 6:27 P.M. RMY #2 (Instantaneous).....24 SSW @ 6:31 P.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 #1.........OUT OF SERVICE D/T RENOVATIONS MERLIN.........OUT OF SERVICE D/T RENOVATIONS FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL..................19 S @ 10:39 P.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE..............18 @ 10:37 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE...............18 S @ 6:29 P.M. MAXIMUM 2-MINUTE RMY #2 AVERAGE.................18 SSW @ 10:37 P.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 #1 AVERAGE.....OUT OF SERVICE D/T RENOVATIONS AVERAGE WIND SPEED AND DIRECTION: CONTACTING/OFFICIAL....... 9.0 NW [216 total miles] VECTOR #2................. 9.8 DAVIS #2.................. 9.4 WSW RMY #2.................... 9.8 W RMY #1..............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.......0.00 DEPARTURE.....-0.13 TOTAL PRECIPITATION FOR THE MONTH.............1.71 DEPARTURE.....-1.12 TOTAL PRECIPITATION FOR THE YEAR.............56.56 DEPARTURE.....+9.83 SNOWFALL (INCHES) THROUGH THIS MORNING (EST): TOTAL SNOWFALL 24 HRS ENDING 7 A.M.............0.0 DEPARTURE......-0.1 TOTAL SNOWFALL FOR THE MONTH...................0.0 DEPARTURE......-0.8 TOTAL SNOWFALL FOR THE SEASON (2021-2022)......0.0 DEPARTURE......-1.5 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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 11/01 59/41/50/+3/0.00/0.0/594/96 38 WNW AERO 39 WNW RMY 39 11/02 56/40/48/+1/0.00/0.0/247/40 25 SW AERO 25 SW RMY 26 11/03 51/35/43/-3/0.00/0.0/572/93 28 W AERO 25 W RMY 27 11/04 49/31/40/-6/0.00/0.0/446/73 17 NNE AERO 17 NNW RMY 16 11/05 49/32/41/-5/0.00/0.0/591/97 25 NW AERO 24 NW RMY 24 11/06 51/34/43/-2/0.00/0.0/595/98 18 SSW AERO 17 SW RMY 19 11/07 55/37/46/+1/0.00/0.0/514/85 17 W AERO 17 W RMY 16 11/08 60/38/49/+4/0.00/0.0/578/96 20 N AERO 18 N RMY 19 11/09 69/45/57/+13/0.00/0.0/582/97 21 W AERO 21 W RMY 22 11/10 60/44/52/+8/0.00/0.0/389/65 36 NW AERO 35 NW RMY 35 11/11 56/40/48/+5/0.00/0.0/501/84 26 SE AERO 28 SE RMY 27 11/12 61/45/53/+10/1.00/0.0/000/00 72 SSE AERO 78 SSE RMY 76 11/13 60/36/48/+5/0.32/0.0/556/94 53 SW AERO 53 SW RMY 54 11/14 47/33/40/-2/0.03/0.0/336/57 29 W AERO 28 W RMY 28 11/15 48/36/42/0/0.07/0.0/405/69 35 W AERO 36 W RMY 38 11/16 46/31/39/-3/0.00/0.0/.../.. 40 WNW AERO 41 WNW RMY 42 11/17 49/30/40/-1/0.00/0.0/.../.. 34 S AERO 36 S RMY 34 11/18 69/49/59/+18/T/0.0/.../.. 39 NW AERO 36 WNW RMY 42 11/19 51/32/42/+1/0.29/0.0/.../.. 42 W AERO 41 W RMY 41 11/20 45/27/36/-4/0.00/0.0/.../.. 23 S AERO 23 S RMY 24 11/21 The low since midnight is 36F, the daily normal low is 32F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated) RECORDS FOR NOVEMBER 21 HIGH 69 IN 1931 LOW 10 IN 1888 PRECIP 3.41 INCHES IN 1950 SNOWFALL 4.0 INS IN 1929 PEAK GUST 69 NW IN 1989 RECORDS FOR NOVEMBER 22 HIGH 70 IN 1931 LOW 9 IN 2018 PRECIP 1.78 INS IN 2005 SNOWFALL 9.0 INS IN 1971 PEAK GUST 70e SE IN 1945 TODAY'S REPORT PREPARED BY: Matt Douglas