Thursday, November 5, 2020

BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

THURSDAY, NOVEMBER 5, 2020
ALL TIMES ARE IN EASTERN STANDARD TIME

PARTLY CLOUDY WITH GOOD VISIBILITY AND
HIGH AFTERNOON WINDS….

Today we experienced partly cloudy skies and 70 miles
of visibility at the 1  P.M. observation. Wind is on the
stronger side, reaching 36 mph with an average speed
of 20 mph. Pressure is on a steady fall with a front
coming in from the west. Temperatures are also
much warmer than normal!

The high so far today is 68F, which is 14 degrees above the
daily normal maximum of 54F. The low since midnight is 50F,
which is 13 degrees above the daily normal minimum of 37F.

Today’s Observations:

7 A.M.
Weather: Clear, few cumulus
Temperature: 50F; Dew Point: 49F; Relative Humidity: 95%
Wind: SSW at 14G22 kts
Sea-level pressure: 30.42 ins. Hg: falling then rising
Visibility: 25 miles, thin fog
6-hr Max temp: 50F
6-hr Min temp: 49F
24-hr Precip: 0.0
24-hr Snow: 0.0
Snow Depth: 0 ins.
BHO SA 1155 CLR 25 301/50/49/2014G22/042/ FEW CU DSNT
THN FG ALQDS/ 8/100 50000 10050 20049

10 A.M.
Weather: Scattered cirrostratus, few cumulus NE-S
Temperature: 61F; Dew Point: 49F; Relative Humidity: 65%
Wind: SSW at 14G22 kts
Sea-level pressure: 30.42 ins. Hg: rising, then falling
Visibility: 65 miles, thin smoke layer
3-hr Precip: 0.00 ins.
3-hr Snow: 0.0 ins.
BHO SA 1455 250 SCT 65 300/61/49/2214G22/042/ FEW CU
NE-S K LYR ALQDS/ 8/106 58001

1 P.M.
Weather: Few cumulus, scattered cirrostratus
Temperature: 68F; Dew Point: 47F; Relative Humidity: 47%
Wind: SSW at 17G26 kts, peak of 34 mph at 11:45 A.M.
Sea-level pressure: 30.35 ins. Hg: falling steadily
Visibility: 70 miles
6-hr Max temp: 68F
6-hr Min temp: 50F
6-hr Precip: 0.00 ins.
6-hr Snow: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 250 SCT 70 278/68/47/2117G26/035/ FEW CU
ALQDS PK WND 2229/1645/ 8/106 57022 10068 20050

SUMMARY FOR WEDNESDAY, NOVEMBER 4, 2020

TEMPERATURE (DEGREES F)
MAX…….54   NORMAL…..54
MIN…….30   NORMAL…..37
MEAN……42   NORMAL…..45

DEPARTURE FROM 30-YEAR NORMAL………………-3
TOTAL DEPARTURE FOR THE MONTH………………-26 [-6.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY………….. 23  DEPARTURE……+3
TOTAL HEATING UNITS FOR THE MONTH…………..103  DEPARTURE……+27
TOTAL HEATING UNITS FOR THE SEASON………….555  DEPARTURE……-85
TOTAL HEATING UNITS LAST SEASON TO DATE……..521  DEPARTURE……+34

PEAK WIND GUST FOR YESTERDAY (MPH)
420C/Official……………………..30 SSW  AT  8:02 P.M.
AEROVANE (south tower)……………..30 SSW  AT  9:18 P.M.
ASOS……………………………..31 SSW  AT  8:01 P.M.
DAVIS #1………………………….30 SSW  AT  9:46 P.M.
DAVIS #2 (south tower)……………..31 S    AT  2:11 P.M.
VECTOR……………………………34
RMY………………………………30
MERLIN……………………………32

FASTEST MILE FOR YESTERDAY…………………….24 SSW  AT  9:34 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………….22 SSW  AT  9:50 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE………………22 WSW  AT  9:51 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE………………24 SSW  AT  9:33 P.M.

AVERAGE WIND SPEED AND DIRECTION……………..10.9 S [262 total miles] ASOS…………..11.7
DAVIS #1……….10.7 SSW   [204 deg.] DAVIS #2……….11.8 SSW   [194 deg.]

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…………0.69     DEPARTURE….+0.06
ASOS…………0.71
TOTAL PRECIPITATION FOR THE YEAR…………41.86     DEPARTURE….-2.54
ASOS……….42.66

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HOURS ENDING 7 A.M………0.0       DEPARTURE…. 0.0
TOTAL SNOWFALL FOR THE MONTH……………Trace       DEPARTURE….-0.1
TOTAL SNOWFALL FOR THE SEASON…………… 6.5       DEPARTURE….+6.1

PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 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

10/01  75/56/66/+9/0.00/591/84           28 SW    AERO 28 SW   RMY N/A
10/02  63/49/56/-1/0.02/203/29           20 NW    AERO 21 NW   RMY 20
10/03  65/45/55/-1/0.00/676/97           19 WNW   AERO 19 WNW  RMY 19
10/04  65/45/55/-1/0.00/659/95           17 ESE   AERO 18 ESE  RMY 18
10/05  62/52/57/+1/0.00/277/40           17 ENE   AERO 17 ENE  RMY N/A
10/06  69/51/60/+5/0.00/503/73           28 S     AERO 28 S    RMY 29
10/07  73/50/62/+7/0.14/316/46           76 W     AERO 74 W    RMY 70  TSTM
10/08  61/42/52/-2/0.00/676/99           41 W     AERO 41 W    RMY N/A
10/09  60/37/49/-5/0.00/646/95           25 SSW   AERO 28 SSW  RMY N/A
10/10  75/52/64/+10/0.00/549/81          40 SSW   AERO 40 SSW  RMY 38
10/11  64/47/56/+3/0.00/574/85           32 NNW   AERO 35 NNW  RMY N/A
10/12  52/48/50/-3/T/000/00              28 E     AERO 27 E    RMY N/A
10/13  57/49/53/0/1.74/000/00            32 E     AERO 33 E    RMY N/A
10/14  67/47/57/+5/0.00/606/91           23 WNW   AERO 25 WNW  RMY N/A
10/15  71/50/61/+9/0.00/511/77           43 S     AERO 46 S    RMY 42
10/16  68/48/58/+7/1.00/020/03           28 S     AERO 30 S    RMY N/A
10/17  56/39/48/-3/1.24/480/73           35 WNW   AERO 40 WNW  RMY 37
10/18  60/46/53/+2/0.00/622/95           20 ESE   AERO 21 ESE  RMY 20
10/19  61/46/54/+4/0.00/575/88           16 ESE   AERO 16 SSE  RMY N/A
10/20  66/49/58/+8/0.00/065/10           22 S     AERO 22 S    RMY 22
10/21  71/56/64/+14/0.06/000/00          26 SSW   AERO 26 SSW  RMY 26
10/22  70/54/62/+13/0.00/471/73          18 SSW   AERO 17 SSW  RMY N/A
10/23  68/52/60/+11/0.00/340/53          18 ESE   AERO 18 ESE  RMY 18
10/24  68/42/55/+6/0.00/217/34           32 NNW   AERO 32 NNW  RMY 32
10/25  50/40/45/-4/0.00/134/21           19 NNW   AERO 19 NNW  RMY N/A
10/26  52/43/48/0/0.02/000/00            20 E     AERO 18 ESE  RMY 20
10/27  52/43/48/0/T/…/..               22 NNW   AERO 22 NNW  RMY N/A
10/28  49/42/46/-2/0.33/…/..           18 W     AERO 18 W    RMY 18
10/29  46/41/44/-3/1.26/…/..           39 NE    AERO 38 NE   RMY 38
10/30  41/26/34/-13/0.94/…/..          37 NNE   AERO 44 NNE  RMY N/A
10/31  39/24/32/-15/0.00/…/..          18 SSE   AERO 20 SSE  RMY 17

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   49/36/43/-3/0.69/0.0/…/..      38 W     AERO 40 W    RMY 39
11/02   40/31/36/-10/T/T/…/..          61 WNW   AERO 62 WNW  RMY 62
11/03   43/29/36/-10/0.00/0.0/…/..     48 WNW   AERO 53 WNW  RMY 48
11/04   54/30/42/-3/0.00/0.0/…/..      30 SSW   AERO 30 SSW  RMY 30

11/05 The low since midnight is 49F, the daily normal low is 37F

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR NOVEMBER 5
HIGH 76 IN 1994
LOW 18 IN 1908
PRECIP 4.26 INCHES IN 1955
SNOWFALL 1.5 IN 1892
PEAK GUST 69 W IN 2004

RECORDS FOR NOVEMBER 6
HIGH 71 IN 1959, 2015
LOW 22 IN 1951
PRECIP 1.72 INCHES IN 1907
SNOWFALL 8.0 IN 1894
PEAK GUST 63 W IN 1973

TODAY’S REPORT PREPARED BY: Benjamin Turner