Tuesday, November 5, 2019

| November 5, 2019 | Reply

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

DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, NOVEMBER 5, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

CLOUDS, OFF AND ON RAIN SHOWERS THE THEME TODAY….

After a couple of nice days, the weather has turned downhill
today with a lot of clouds and off and on rain showers, the
heaviest of which so far was occurring right at the 1 P.M.
observation. Rainfall totaling 0.02″ has fallen between 7 A.M. and
1 P.M., and a few more hundredths have fallen since the 1 P.M.
observation.

The high so far today is 54F, which is normal for the date. The
low since midnight is 44F, which is 7 degrees above the normal
minimum of 37F.

Today’s Observations:

7 A.M.
Weather: Vertical visibility 200 feet, sky obscured in dense fog
Temperature: 47F; Dew Point: 47F; Wind: SE at 3 kts
Wind: Light and variable
Sea-level pressure: 30.28 ins. Hg, rising, then falling
Visibility: 1/16 miles in fog
6-hr Max temp: 47F
6-hr Min temp: 44F
24-hr Precip: Trace
BHO SA 1155 W2 X 1/16F 254/47/47/1403/028/ WND L/V/
8//// 56003 6000 70000 10047 20044

10 A.M.
Weather: Overcast Altocumulus, light rain shower
Temperature: 53F; Dew Point: 46F; Wind: S at 6 kts,
Wind: Light
Sea-level pressure: 30.26 ins. Hg, falling, then more rapidly
Visibility: 30 miles, except 15 miles E
BHO SA 1455 E60 OVC 30RW- 247/53/46/1706/026/ VSBY 15 E
K LYR S-OVHD-N RWBUKN WND LGT/ 8/07/ 58007 6000

1 P.M.
Weather: Overcast stratus, moderate rain and fog
Temperature: 53F; Dew Point: 49F; Wind: SSE at 8 kts
Sea-level pressure: 30.15 ins. Hg, falling, then more rapidly
Visibility: 4 miles
6-hr Max temp: 54F
6-hr Min temp: 47F
BHO SA 1755 E40 OVC 4RF 209/53/49/1508/015/ VSBY NNE-NE
15 RB55/ 8/7// 58038 6002 10054 20047

SUMMARY FOR MONDAY, NOVEMBER 4, 2019

TEMPERATURE (DEGREES F)
MAX…..53   NORMAL…..54
MIN…..33   NORMAL…..37
MEAN….43   NORMAL…..45

DEPARTURE FROM 30-YEAR NORMAL………………..-2
TOTAL DEPARTURE FOR THE MONTH………………..-4 [-1.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………22  DEPARTURE………+2
TOTAL HEATING UNITS FOR THE MONTH……………81  DEPARTURE………+5
TOTAL HEATING UNITS FOR THE SEASON………….521  DEPARTURE…….-119
TOTAL HEATING UNITS LAST SEASON TO DATE……..589  DEPARTURE……..-68

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..24 S   AT  5:54 P.M.
AERO…………………….20 S   AT  6:14 P.M
ASOS…………………….24 S   AT  6:45 P.M.
DAVIS……………………27 S   AT  7:25 P.M. RMY 24
FASTEST MILE FOR YESTERDAY………………….21 S   AT  5:40 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….20 S   AT  7:22 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………19 S   AT  5:39 P.M.
AVERAGE WIND SPEED AND DIRECTION…………….10.5 SW
ASOS…………………….11.1
DAVIS……………………10.7 SW [231 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…TRACE  DEPARTURE……-0.15
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….0.12  DEPARTURE……-0.50
ASOS…………..0.12
TOTAL PRECIPITATION FOR THE YEAR……….45.46  DEPARTURE……+1.06
ASOS………….45.81

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…….-0.2
TOTAL SNOWFALL FOR THE SEASON……………0.0  DEPARTURE…….-0.5

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  67/52/60/+3/0.06/028/04               28 SW  AERO 25 SSW RMY 29
10/02  74/49/62/+5/0.42/021/03               30 ENE AERO 25 ENE RMY 28
10/03  51/46/49/-7/…./000/00               28 ENE AERO 26 ENE RMY N/A
10/04  59/40/50/-6/…./397/57               38 NNW AERO 38 NNW RMY 38
10/05  58/35/47/-9/0.00/687/99               21 N   AERO 18 SSW RMY N/A
10/06  65/44/55/0/0.00/263/38                36 SSW AERO 35 SSW RMY N/A
10/07  77/57/67/+12/0.12/316/46              47 SSW AERO 46 SSW RMY 49
10/08  60/52/56/+2/T/000/00                  22 NE  AERO 18 NW  RMY N/A
10/09  55/49/52/-2/…./000/00               43 NE  AERO 37 NE  RMY 44
10/10  54/47/51/-3/…./000/00               41 NE  AERO 37 NE  RMY 42
10/11  52/48/50/-3/…./000/00               41 NE  AERO 39 NE  RMY 41
10/12  52/49/51/-2/…./000/00               39 NE  AERO 37 NE  RMY N/A
10/13  66/48/57/+4/…./570/85               18 WNW AERO 17 WNW RMY 18
10/14  67/51/59/+7/…./335/50               18 WSW AERO 17 WSW RMY N/A
10/15  61/43/52/0/…./653/98                18 NNW AERO 17 NNW RMY N/A
10/16  61/45/53/+2/…./305/46               58 ESE AERO 58 ESE RMY N/A
10/17  60/46/53/+2/…./086/13               61 E   AERO 63 E   RMY N/A
10/18  57/41/49/-2/…./099/15               29 WNW AERO 32 W   RMY 32
10/19  58/36/47/-3/…./648/99               18 NW  AERO 18 NW  RMY 19
10/20  60/43/52/+2/T/280/43                  14 NE  AERO 16 NE  RMY N/A
10/21  59/49/54/+4/0.01/591/91               25 E   AERO 21 NE  RMY 23
10/22  58/47/53/+4/…./078/12               29 E   AERO 28 E   RMY 23
10/23  65/48/57/+8/…./431/67               35 W   AERO 35 W   RMY 36
10/24  67/43/55/+6/…/…/..                28 SSW AERO 28 SSW RMY 29
10/25  64/47/56/+7/…/…/..                20 WSW AERO 21 SW  RMY N/A
10/26  58/45/52/+4/…/…/..                20 N   AERO 18 N   RMY N/A
10/27  52/45/49/+1/1.43/…/..               37 ESE AERO 35 ESE RMY 37
10/28  53/46/50/+2/…/…/..                24 NNW AERO 24 NNW RMY N/A
10/29  54/47/51/+4/…./…/..               15 ESE AERO 15 ESE RMY 14
10/30  65/51/58/+11/…./…/..              24 S   AERO M  M   RMY N/A
10/31  68/58/63/+16/…./…/..              61 S   AERO M  M   RMY N/A

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  67/35/51/+5/…./0.0/…/..               67 S   AERO M  M RMY N/A
11/02  50/31/41/-5/0.00/0.0/…/..               17 WNW AERO 14 W RMY N/A
11/03  53/35/44/-2/0.00/0.0/…/..               25 WSW AERO 23 W RMY 26
11/04  53/33/43/-2/0.00/0.0/…/..               24 S   AERO 20 S RMY 24

11/05 The low since midnight is 44F, daily normal minimum 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: Matt Douglas

Category: Daily Discussions

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