Tuesday, October 29, 2019

| October 29, 2019 | Reply

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

DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, OCTOBER 29, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

CLOUDS PERSIST FOR ANOTHER DAY…

Starting to feel like Groundhog’s Day around here with fairly
constant temperatures and repetitive cloudy skies and drizzle.
Overnight drizzle last night amounted to 0.05″ of rain in the
gauge this morning, adding to the 0.02″ we measured yesterday.
Monthly rainfall is now up to 6.55″ which is 2.32″ above
normal. This month as has been quite wet in stark contrast
to last month, which averaged over 1″ below normal.

Winds have again been quite light today generally staying
under 10 kts.

Temperatures remain on the cooler side with the high so far
today being 53 degrees, which is 3 degrees below the daily
normal maximum of 56F. The low since midnight is 47F, 8
degrees above the normal low of 39F.

Today’s Observations:

7 A.M.
Weather: Overcast Stratus, light drizzle
Temperature: 48F; Dew Point: 47F; Wind: ESE at 3 kts
Sea-level pressure: 30.39 ins. Hg, falling, then rising
Visibility: 7 mile, thin fog
6-hr Max temp: 48F
6-hr Min temp: 47F
24-hr Precip: 0.07 ins.
BHO SA 1155 E10 OVC 7L- 291/48/47/1103/039/ THN F ALQDS
PCPN VRY LGT LBUKN WND LGT/ 8/6// 53009 6000 70007
10048 20047

10 A.M.
Weather: Overcast stratus
Temperature: 50F; Dew Point: 48F; Wind: ESE at 6 kts
Sea-level pressure: 30.38 ins. Hg, falling unsteadily
Visibility: 30 miles, 15 miles NW-NNE
3-hr Precip: 0.01 ins.
BHO SA 1455 E10 OVC 30 287/50/48/1106/038/ VSBY 15 NW-NNE
WND LGT/ 8/6// 57004 6001

1 P.M.
Weather: Overcast stratus
Temperature: 52F; Dew Point: 49F; Wind: SE at 3 kts,
Sea-level pressure: 30.33 ins. Hg, falling, then more rapidly
Visibility: 40 miles
6-hr Max temp: 53F
6-hr Min temp: 47F
6-hr Precip: 0.01 ins.
BHO SA 1755 E10 OVC 40 272/52/49/1303/033/ WND L/V/ 8/6//
58015 6001 10053 20048

SUMMARY FOR MONDAY OCTOBER 28, 2019

TEMPERATURE (DEGREES F)
MAX…..53   NORMAL…..56
MIN…..46   NORMAL…..39
MEAN….50   NORMAL…..48

DEPARTURE FROM 30-YEAR NORMAL…………………+2
TOTAL DEPARTURE FOR THE MONTH………………..+38 [+1.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………15  DEPARTURE………-2
TOTAL HEATING UNITS FOR THE MONTH…………..324  DEPARTURE……..-43
TOTAL HEATING UNITS FOR THE SEASON………….417  DEPARTURE……..-92
TOTAL HEATING UNITS LAST SEASON TO DATE……..480  DEPARTURE……..-63

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE……….0
TOTAL COOLING UNITS FOR THE MONTH…………….2  DEPARTURE………-3
TOTAL COOLING UNITS FOR THE SEASON………….682  DEPARTURE……..+80
TOTAL COOLING UNITS LAST SEASON TO DATE……..874  DEPARTURE…….-192

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..24 NNW  AT 12:22 A.M.
AERO…………………….24 NNW  AT 12:16 A.M.
ASOS…………………….24 NNW  AT 12:21 A.M.
DAVIS……………………24 NNW  AT 12:19 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………….17 N    AT 12:20 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….17 N    AT 12:18 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………18 N    AT 12:17 A.M.
AVERAGE WIND SPEED AND DIRECTION…………….7.5 ENE
ASOS…………………….8.0
DAVIS……………………8.0 NE [037 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.07  DEPARTURE……-0.09
ASOS…………..0.07
TOTAL PRECIPITATION FOR THE MONTH……….6.55  DEPARTURE……+2.32
ASOS…………..6.88
TOTAL PRECIPITATION FOR THE YEAR……….44.97  DEPARTURE……+1.65
ASOS………….45.11

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/…/..               28 SW  AERO 25 SSW RMY 29
10/02  74/49/62/+5/0.42/…/..               30 ENE AERO 25 ENE RMY 28
10/03  51/46/49/-7/…./…/..               28 ENE AERO 26 ENE RMY N/A
10/04  59/40/50/-6/…./…/..               38 NNW AERO 38 NNW RMY 38
10/05  58/35/47/-9/0.00/…/..               21 N   AERO 18 SSW RMY N/A
10/06  65/44/55/0/0.00/…/..                36 SSW AERO 35 SSW RMY N/A
10/07  77/57/67/+12/0.12/…/..              47 SSW AERO 46 SSW RMY 49
10/08  60/52/56/+2/T/…/..                  22 NE  AERO 18 NW  RMY N/A
10/09  55/49/52/-2/…./…/..               43 NE  AERO 37 NE  RMY 44
10/10  54/47/51/-3/…./…/..               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/…./…/..               39 NE  AERO 37 NE  RMY N/A
10/13  66/48/57/+4/…./…/..               18 WNW AERO 17 WNW RMY 18
10/14  67/51/59/+7/…./…/..               18 WSW AERO 17 WSW RMY N/A
10/15  61/43/52/0/…./…/..                18 NNW AERO 17 NNW RMY N/A
10/16  61/45/53/+2/…./…/..               58 ESE AERO 58 ESE RMY N/A
10/17  60/46/53/+2/…./…/..               61 E   AERO 63 E   RMY N/A
10/18  57/41/49/-2/…./…/..               29 WNW AERO 32 W   RMY 32
10/19  58/36/47/-3/…./…/..               18 NW  AERO 18 NW  RMY 19
10/20  60/43/52/+2/T/…/..                  14 NE  AERO 16 NE  RMY N/A
10/21  59/49/54/+4/0.01/…/..               25 E   AERO 21 NE  RMY 23
10/22  58/47/53/+4/…./…/..               29 E   AERO 28 E   RMY 23
10/23  65/48/57/+8/…./…/..               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 The low since midnight is 47F, normal daily minimum is 39F

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

RECORDS FOR OCTOBER 29
HIGH 74F IN 1989
LOW 23F IN 1891
PRECIP 2.42 INCHES IN 2012
SNOWFALL 4.0 INCHES IN 2011
PEAK GUST 76 E IN 2012

RECORDS FOR OCTOBER 30
HIGH 75F IN 1946,1989
LOW 21F IN 1928
PRECIP 1.85 INCHES IN 1917
SNOWFALL 2.0 INCHES IN 2011
PEAK GUST 66 NW IN 1963

TODAY’S REPORT PREPARED BY: Matt Douglas and Ann Murphy

Category: Daily Discussions

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