Wednesday, October 26, 2016

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

DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, OCTOBER 26, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME

BELOW NORMAL TEMPERATURES, GUSTING WINDS, AND DRY CONDITIONS CONTINUE

Yesterday’s chilly and windy weather continues today.  Gusty winds made
already chilly temps feel cooler than they actually were.  Still out of
the WNW-NW, winds have been gusting near 30 MPH through the early
afternoon but are expected to slow as low pressure moves farther away
and a high pressure system moves into the region.

The overnight low reached a new monthly minimum of 32F this morning.
Temps rose to a max of 47F by 1:00PM EST, still about 10F below normal.
Dew points remained in the mid-20s all day.

7 A.M.
Weather: Few cumulus in all directions
Temperature: 35F; Dew Point: 25F; Wind: WNW at 9 kts
Sea-level pressure: 30.30 ins. Hg, rising unsteadily
Visibility: 70 miles
6-hr Max temp: 35F
6-hr Min temp: 32F
24-hr precip: 0.00 in.
BHO SA 1155 CLR 70 261/35/25/2909/030/ FEW CU ALQDS/
8/100 52015 10035 20032

10 A.M.
Weather: Scattered cumulus, few altostratus N-NE
Temperature: 41F; Dew Point: 25F; Wind: NW at 13G20 kts
Sea-level pressure: 30.31 ins. Hg, rising then falling
Visibility: 70 miles
BHO SA 1455 34 SCT 70 264/41/25/3213G20/031/ FEW AS N-NE/
8/110 50003

1 P.M.
Weather: Broken cumulus
Temperature: 44F; Dew Point: 25F; Wind: NW at 7 kts
Sea-level pressure: 30.31 ins. Hg, rising unsteadily
Visibility: 70 miles
6-hr Max. temp: 47F
6-hr Min. temp: 34F
BHO SA 1755 E44 BKN 70 265/44/25/3207/031/ 8/100 50001
10047 20034

SUMMARY FOR TUESDAY, OCTOBER 25, 2016

TEMPERATURE (DEGREES F)
MAX…..48   NORMAL…..57
MIN…..33   NORMAL…..40
MEAN….41   NORMAL…..49

DEPARTURE FROM 30-YEAR NORMAL……………………-8
TOTAL DEPARTURE FOR THE MONTH…………………..+95 [+3.6 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…………..24   DEPARTURE……….+7
TOTAL HEATING UNITS FOR THE MONTH………….221   DEPARTURE………-95
TOTAL HEATING UNITS FOR THE SEASON…………296   DEPARTURE……..-162
TOTAL HEATING UNITS LAST SEASON TO DATE…….364   DIFFERENCE……..-68

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….33 WNW AT  2:09 P.M.
ASOS……………………35 NW  AT  2:25 P.M.
DAVIS…………………..34 NW  AT  1:34 P.M. RMY 35
FASTEST MILE FOR YESTERDAY…………………25 WNW AT  1:35 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………25 NW  AT  1:35 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..24 WNW AT  1:35 P.M.
AVERAGE WIND SPEED AND DIRECTION………….14.7 WNW
ASOS………………….13.6
DAVIS…………………15.2 WNW [290 Deg.] *last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE……-0.15
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….5.72  DEPARTURE……+1.97
ASOS…………..5.75
TOTAL PRECIPITATION FOR THE YEAR……….33.04  DEPARTURE……-9.79
ASOS………….33.39

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 Low temp since midnight is 32F; 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 26
HIGH 80F IN 1963
LOW 24F IN 1933
PRECIP 1.72 INCHES IN 1894
SNOW 3.0 INCHES IN 1962
WIND 59 MPH SSE IN 1967

RECORDS FOR OCTOBER 27
HIGH 83F IN 1963
LOW 21F IN 1936
PRECIP 1.79 INCHES IN 1886
SNOW 2.5 INCHES IN 2011
WIND 54 MPH WNW IN 1968

TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle and Jackson Mowry