Monday, October 28, 2019

| October 28, 2019 | Reply

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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, OCTOBER 28, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

CLOUDS PERSIST WITH OCCASIONAL DRIZZLE…

Yesterday’s heavy rain event left 1.43″ of rain in our
gauge here at Blue Hill. Today we are stuck with clouds
and occasional drizzle which has amounted to 0.02″ through
1 P.M. this afternoon. While there have been some attempts
at getting some sun to break through the clouds, it has
been rather unsuccessful as the onshore flow assures plenty
of low level moisture persists.

Winds have been quite light today after being rather busy
yesterday. Peak gust yesterday was 37 MPH out of the ESE
at 2:51 P.M.

Temperatures remain on the chilly 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 46F, 7
degrees above the normal low of 39F.

Today’s Observations:

7 A.M.
Weather: Vertical visibility 200 feet, sky obscured, light
drizzle and fog
Temperature: 47F; Dew Point: 47F; Wind: N at 7 kts
Sea-level pressure: 30.11 ins. Hg, rising steadily
Visibility: 1 mile
6-hr Max temp: 47F
6-hr Min temp: 46F
24-hr Precip: 1.43 ins.
BHO SA 1155 W2 X 1L-F 197/47/47/3507/011/ 8//// 52044 6000
70143 10047 20046

10 A.M.
Weather: Overcast stratus, light drizzle and fog
Temperature: 50F; Dew Point: 50F; Wind: NNE at 8 kts
Sea-level pressure: 30.19 ins. Hg, rising, then more slowly
Visibility: 4 miles
3-hr Precip: 0.02 ins.
BHO SA 1455 E8 OVC 4L-F 224/50/50/0308/019/ 8/6// 51027 6002

1 P.M.
Weather: Overcast stratus, light drizzle
Temperature: 51F; Dew Point: 50F; Wind: NE at 5 kts,
Sea-level pressure: 30.21 ins. Hg, steady, then rising
Visibility: 20 miles, 5 miles NW-NNE, 10 miles E-SE, 40 miles S-W
6-hr Max temp: 53F
6-hr Min temp: 47F
6-hr Precip: 0.02 ins.
BHO SA 1755 E20 OVC 20L- 231/51/50/0405/021/ BINOVC DSNT SSW-WSW
PCPN VRY LGT VSBY 5 NW-NNE 10 E-SE 40 S-W WND L/V LEUKNB47/ 8/6//
53007 6002 10053 20047

SUMMARY FOR SUNDAY, OCTOBER 27, 2019

TEMPERATURE (DEGREES F)
MAX…..52   NORMAL…..57
MIN…..45   NORMAL…..39
MEAN….49   NORMAL…..48

DEPARTURE FROM 30-YEAR NORMAL…………………+1
TOTAL DEPARTURE FOR THE MONTH………………..+36 [+1.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………16  DEPARTURE………-1
TOTAL HEATING UNITS FOR THE MONTH…………..309  DEPARTURE……..-41
TOTAL HEATING UNITS FOR THE SEASON………….402  DEPARTURE……..-90
TOTAL HEATING UNITS LAST SEASON TO DATE……..461  DEPARTURE……..-59

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………………..37 ESE  AT  2:51 P.M.
AERO…………………….35 ESE  AT  2:37 P.M.
ASOS…………………….37 ESE  AT  2:50 P.M.
DAVIS……………………38 ESE  AT  2:36 P.M. RMY 37
FASTEST MILE FOR YESTERDAY………………….28 ESE  AT  2:46 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….25 ESE  AT  2:47 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………28 ESE  AT  2:27 P.M.
AVERAGE WIND SPEED AND DIRECTION……………14.9 ESE
ASOS……………………14.4
DAVIS…………………..14.9 ESE [110 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….1.43  DEPARTURE……+1.27
ASOS…………..1.49
TOTAL PRECIPITATION FOR THE MONTH……….6.48  DEPARTURE……+2.41
ASOS…………..6.81
TOTAL PRECIPITATION FOR THE YEAR……….44.90  DEPARTURE……+1.74
ASOS………….45.04

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 The low since midnight is 46F, 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 28
HIGH 81F IN 1919
LOW 23F IN 1914
PRECIP 2.46 INCHES IN 2006
SNOWFALL TRACE IN 1934,1957,1979
PEAK GUST 71 MPH SSW IN 1995

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

TODAY’S REPORT PREPARED BY: Matt Douglas

Category: Daily Discussions

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