Saturday, October 29, 2016
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, OCTOBER 29, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
BRIEF PERIOD OF LIGHT RAIN THIS MORNING,
SKIES REMAIN CLOUDY AS WARM FRONT GOES NORTH
Additional rain yesterday afternoon and this morning brought the 7:00AM
precip. total to 0.06 in, making October’s total now 6.77 in. Another
trace of precip. was measured in the three hours between 7:00AM and
10:00AM. Skies were mostly cloudy all day and prevented temperatures from
rising above the max. of 50F by 1:00PM. Winds have shifted south and are
expected to increase behind the passing warm front.
7 A.M.
Weather: Light rain, broken nimbostratus,
few cumulus and cirrus NE-S
Temperature: 40F; Dew Point: 38F; Wind: WSW at 7 kts
Sea-level pressure: 30.12 ins. Hg, falling then rising
Visibility: 40 miles, except 50 miles NE-SSE
6-hr Max temp: 41F
6-hr Min temp: 37F
24-hr precip: 0.06 in.
BHO SA 1155 E84 BKN 40R- 200/40/38/2907/012/ FEW CU AND CI NE-S
VSBY NE-SSE 50/ 8/121 53003 MANUAL 70006 ASOS 70006 10041 20037
10 A.M.
Weather: Broken altostratus, few cirrus in all directions
Temperature: 44F; Dew Point: 42F; Wind: SSW at 6 kts,
Wind Speed: Light
Sea-level pressure: 30.07 ins. Hg, falling, then more quickly
Visibility: 70 miles
3-hr precip: Trace
BHO SA 1455 E100 BKN 70 182/44/42/2106/007/ FEW CI ALQDS WND LGT/
8/011 58018 MANUAL 600//
1 P.M.
Weather: Scattered altocumulus, broken altostratus, overcast cirrostratus
Temperature: 50F; Dew Point: 38F; Wind: S at 13 kts
Sea-level pressure: 29.93 ins. Hg, falling, then more slowly
Visibility: 70 miles
6-hr Max. temp: 50F
6-hr Min. temp: 39F
6-hr precip: Trace
BHO SA 1755 64 SCT E110 BKN 200 OVC 70 134/50/38/1813/993/ 8/516 56048
MANUAL 600// 10050 20039
SUMMARY FOR FRIDAY, OCTOBER 28, 2016
TEMPERATURE (DEGREES F)
MAX…..51 NORMAL…..56
MIN…..41 NORMAL…..39
MEAN….46 NORMAL…..48
DEPARTURE FROM 30-YEAR NORMAL……………………-2
TOTAL DEPARTURE FOR THE MONTH…………………..+74 [+2.4 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………0 DEPARTURE………..0
TOTAL COOLING UNITS FOR THE MONTH……………7 DEPARTURE……….+2
TOTAL COOLING UNITS FOR THE SEASON…………901 DEPARTURE……..+299
TOTAL COOLING UNITS LAST SEASON TO DATE…….810 DIFFERENCE……..+91
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..19 DEPARTURE……….+2
TOTAL HEATING UNITS FOR THE MONTH………….293 DEPARTURE………-74
TOTAL HEATING UNITS FOR THE SEASON…………368 DEPARTURE……..-141
TOTAL HEATING UNITS LAST SEASON TO DATE…….413 DIFFERENCE……..-45
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….40 WNW AT 2:02 P.M.
ASOS……………………42 WNW AT 2:02 P.M.
DAVIS…………………..40 WNW AT 2:01 P.M. RMY 43
FASTEST MILE FOR YESTERDAY…………………29 W AT 11:15 A.M.*
MAXIMUM 2-MINUTE ASOS AVERAGE………………28 W AT 11:16 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..25 NW AT 3:52 P.M.
AVERAGE WIND SPEED AND DIRECTION………….17.8 W
ASOS………………….16.4
DAVIS…………………15.2 NW [310 Deg.]
*last of several occurrences
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.06 DEPARTURE……-0.10
ASOS…………..0.06
TOTAL PRECIPITATION FOR THE MONTH……….6.77 DEPARTURE……+2.55
ASOS…………..6.81
TOTAL PRECIPITATION FOR THE YEAR……….34.09 DEPARTURE……-9.21
ASOS………….34.45
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/-3/0.19/000/00 23 N AERO M RMY N/A
10/3 69/53/61/+5/0.00/404/58 21 ENE AERO M RMY 20
10/4 61/47/54/-2/T/493/71 26 NE AERO M RMY 27
10/5 61/44/53/-3/0.00/630/91 22 NE AERO M RMY 21
10/6 71/46/59/+4/0.00/682/99 16 SW* AERO M RMY 15
10/7 75/54/65/+10/0.00/679/99 16 S AERO M RMY 16
10/8 69/53/61/+7/0.00/130/19 23 SSW AERO M RMY 23
10/9 63/44/54/0/1.89/000/00 28 N AERO M RMY 34
10/10 57/40/49/-5/0.00/658/97 32 NW AERO M RMY 32
10/11 62/39/51/-2/0.00/655/97 17 N AERO M RMY N/A
10/12 68/49/59/+6/0.00/645/96 17 S AERO M RMY 17
10/13 71/52/62/+9/T/348/52 24 SSW AERO M RMY 28
10/14 58/41/50/-2/0.00/667/100 26 NNW AERO M RMY 25
10/15 58/38/48/-4/0.00/578/87 23 S AERO M RMY 26
10/16 68/46/57/+6/0.00/562/85 28 SSW AERO M RMY 30
10/17 76/58/67/+16/0.00/494/75 23 WSW AERO M RMY N/A
10/18 74/56/65/+14/0.54/210/32 35 SSW AERO M RMY 37
10/19 79/58/69/+19/0.00/549/84 29 SSW AERO M RMY N/A
10/20 64/54/59/+9/0.05/429/66 23 ENE AERO M RMY 22
10/21 75/57/66/+16/1.60/142/22 30 ESE AERO M RMY 31
10/22 65/40/53/+4/0.23/…/.. 37 WSW AERO M RMY N/A
10/23 56/41/49/0/0.00/…/.. 47 W AERO M RMY 50
10/24 59/41/50/+1/T/…/.. 38 W AERO M RMY 40
10/25 48/33/41/-8/0.00/…/.. 33 WNW AERO M RMY 35
10/26 47/32/40/-8/0.00/…/.. 29 WNW AERO M RMY 31
10/27 46/28/37/-11/…./…/.. 28 ESE AERO 28 ESE RMY N/A
10/28 51/41/46/-2/…./…/.. 40 WNW AERO 41 WNW RMY 43
10/29 Low temp since midnight is 37F; normal low is now 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: Cecilia Borries-Strigle and Lizzy Suzedell
