Saturday, October 15, 2016
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, OCTOBER 15, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
COOL BUT DRY CONDITIONS CONTINUE WITH ONGOING HIGH PRESSURE
Below average temperatures continued today, reaching a high of 58F by
the 1:00PM observation and slowly decreasing from there. Despite thin,
high cirrus, it was still a very sunny and pleasant day. A high pressure
system continued to bring dry conditions with dew points in the low 40s.
Winds remained light out of the NNE-ENE.
7 A.M.
Weather: Few cumulus NE-SE, few cirrus NW-ESE, patches of steam fog dissipating
over pond SE, inversion present
Temperature: 43F; Dew Point: 36F; Wind: NNE at 8 kts
Sea-level pressure: 30.45 ins. Hg, rising, then more quickly
Visibility: 50 miles
6-hr Max temp: 43F
6-hr Min temp: 38F
24-hr precip: 0.00 in.
BHO SA 1155 CLR 50 310/43/36/0208/045/ FEW CU NE-SE FEW CI NW-ESE PTCHS STEAM
FG DSSPTG OVR POND VC SE INVSN PRSNT/ 8/101 53013 10043 20038
10 A.M.
Weather: Few cumulus in all directions, scattered thin cirrus, few cirrostratus
W-E
Temperature: 55F; Dew Point: 38F; Wind: NNE at 6 kts,
Wind Speed: Light
Sea-level pressure: 30.46 ins. Hg, rising, then falling
Visibility: 70 miles
BHO SA 1455 250 -SCT 70 316/55/38/0306/046/ FEW CU ALQDS FEW CS W-E WND LGT/
8/105 50006
1 P.M.
Weather: Few cumulus in all directions, scattered cirrus, broken thin cirrus
Temperature: 55F; Dew Point: 42F; Wind: ENE at 7 kts
Sea-level pressure: 30.41 ins. Hg, falling, then more quickly
Visibility: 70 miles
6-hr Max. temp: 58F
6-hr Min. temp: 43F
BHO SA 1755 250 SCT E300 -BKN 70 298/55/42/0607/041/ FEW CU ALQDS/ 8/102 58018
10058 20043
SUMMARY FOR FRIDAY, OCTOBER 14, 2016
TEMPERATURE (DEGREES F)
MAX…..58 NORMAL…..62
MIN…..41 NORMAL…..43
MEAN….50 NORMAL…..52
DEPARTURE FROM 30-YEAR NORMAL……………………-2
TOTAL DEPARTURE FOR THE MONTH…………………..+22 [+1.4 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………0 DEPARTURE………..0
TOTAL COOLING UNITS FOR THE MONTH……………0 DEPARTURE……….-4
TOTAL COOLING UNITS FOR THE SEASON…………894 DEPARTURE……..+293
TOTAL COOLING UNITS LAST SEASON TO DATE…….810 DIFFERENCE……..+84
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..15 DEPARTURE……….+2
TOTAL HEATING UNITS FOR THE MONTH………….123 DEPARTURE………-28
TOTAL HEATING UNITS FOR THE SEASON…………198 DEPARTURE………-95
TOTAL HEATING UNITS LAST SEASON TO DATE…….178 DIFFERENCE……..+20
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….26 NNW AT 3:16 A.M.
ASOS……………………28 NW AT 3:16 A.M.
DAVIS…………………..26 NW AT 2:01 A.M. RMY 25
FASTEST MILE FOR YESTERDAY…………………18 NW AT 2:01 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………18 NW AT 2:15 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..18 NW AT 2:03 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..9.3 NW
ASOS…………………..9.6
DAVIS………………….8.4 NNW [330 Deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE……-0.14
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….3.30 DEPARTURE……+1.23
ASOS…………..3.31
TOTAL PRECIPITATION FOR THE YEAR……….30.62 DEPARTURE…..-10.53
ASOS………….30.95
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
10/1 57/52/55/-2/1.22/000/00 33 NNE AERO M RMY 34
10/2 55/52/54/-3/0.19/…/.. 23 N AERO M RMY N/A
10/3 69/53/61/+5/0.00/…/.. 21 ENE AERO M RMY 20
10/4 61/47/54/-2/T/…/.. 26 NE AERO M RMY 27
10/5 61/44/53/-3/0.00/…/.. 22 NE AERO M RMY 21
10/6 71/46/59/+4/0.00/…/.. 16 SW* AERO M RMY 15
10/7 75/54/65/+10/0.00/…/.. 16 S AERO M RMY 16
10/8 69/53/61/+7/0.00/…/.. 23 SSW AERO M RMY 23
10/9 63/44/54/0/1.89/…/.. 28 N AERO M RMY 34
10/10 57/40/49/-5/0.00/…/.. 32 NW AERO M RMY 32
10/11 62/39/51/-2/0.00/…/.. 17 N AERO M RMY N/A
10/12 68/49/59/+6/0.00/…/.. 17 S AERO M RMY 17
10/13 71/52/62/+9/T/…/.. 24 SSW AERO M RMY 28
10/14 58/41/50/-2/0.00/…/.. 26 NNW AERO M RMY 25
10/15 Low temp since midnight is 38F; normal low is now 43F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR OCTOBER 15
HIGH 83F IN 1897
LOW 29F IN 1887,1937
PRECIP 4.58 INCHES IN 2005
SNOWFALL TRACE IN 1961,1972
PEAK GUST 69 MPH W IN 2003
RECORDS FOR OCTOBER 16
HIGH 86F IN 1897
LOW 28F IN 1886
PRECIP 2.82 INCHES IN 1974
SNOWFALL TRACE IN 2009
PEAK GUST 68e MPH SSE IN 1954 (HURRICANE HAZEL)
TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle and Lizzy Suzedell
