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Wednesday, February 8, 2017

February 8, 2017

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY WEDNESDAY, FEBRUARY…

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

DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, FEBRUARY 8, 2017
ALL TIMES ARE IN EASTERN STANDARD TIME

TEMPS. QUICK TO RISE AFTER MORNING FOG CLEARS

Light drizzle and rain continued through yesterday evening
totaling 0.54 in. of precip. for the day.  Freezing rain
fell before 7:00AM this morning and left many surfaces
covered in a thin layer of ice.  Fog was slow to lift on
top of Great Blue Hill, limiting visibility to just 1/8 mile
during the morning observations.

Temperatures had warmed to 47F by 1:00PM, still well under
the maximum temperature record of 60F set in 1933.  Conditions
cleared around noon to show broken skies with cirrus and a few
cumulus during the 1:00PM observation.

Today’s Observations:

7 A.M.
Weather: Fog, thin glaze on surfaces
Temperature: 31F; Dew Point: 31F; Wind: SW at 6G13 kts
Sea-level pressure: 29.54 ins. Hg, falling, then rising slightly
Visibility: 41/8 mile
6-hr Max temp: 32F
6-hr Min temp: 25F
24-hr precip: 0.54 in.
24-hr snowfall: 0.7 in.
BHO SA 1155 W2 X 1/8F 002/31/31/2206G13/954/ THN GLZ
NEW SNW PST 24 HRS 0.7 INS/ 8//// 55011 MANUAL 70054
ASOS 70060 10032 20025

10 A.M.
Weather: Fog
Temperature: 36F; Dew Point: 36F; Wind: WSW at 13 kts
Sea-level pressure: 29.58 ins. Hg, rising, then less quickly
Visibility: 1/8 mile
BHO SA 1455 W2 X 1/8F 018/36/36/2413/958/ 8//// 51016

1 P.M.
Weather: Few cumulus SE-NW, broken cirrus
Temperature: 47F; Dew Point: 43F; Wind: W at 10 kts
Sea-level pressure: 29.60 ins. Hg, rising then falling
Visibility: 40 miles, distant fog in all directions
6-hr Max temp: 47F
6-hr Min temp: 29F
BHO SA 1755 E250 BKN 40 025/47/43/2710/960/ FEW CU SE-NW DSNT FG ALQDS/
8/102 50007 10047 20029

SUMMARY FOR TUESDAY, FEBRUARY 7, 2017

TEMPERATURE (DEGREES F)
MAX…..37   NORMAL…..35
MIN…..30   NORMAL…..18
MEAN….34   NORMAL…..27

DEPARTURE FROM 30-YEAR NORMAL……………………+7
TOTAL DEPARTURE FOR THE MONTH…………………..+29 [+3.9 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..31   DEPARTURE……….+8
TOTAL HEATING UNITS FOR THE MONTH………….243   DEPARTURE………-30
TOTAL HEATING UNITS FOR THE SEASON………..3270   DEPARTURE……..-533
TOTAL HEATING UNITS LAST SEASON TO DATE……2923   DIFFERENCE…….+347

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….32 ENE AT  2:23 P.M.
ASOS……………………33 ENE AT  3:32 P.M.
DAVIS…………………..29 E   AT  2:27 P.M. RMY 32
FASTEST MILE FOR YESTERDAY…………………23 ENE AT  2:23 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………24 ENE AT 12:34 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..21 E   AT  5:17 P.M.
AVERAGE WIND SPEED AND DIRECTION………….15.8 ENE
ASOS………………….16.0
DAVIS…………………13.8 E [090 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.54  DEPARTURE……+0.40
ASOS…………..0.60
TOTAL PRECIPITATION FOR THE MONTH……….0.57  DEPARTURE……-0.38
ASOS…………..0.64
TOTAL PRECIPITATION FOR THE YEAR………..6.07  DEPARTURE……+0.77
ASOS…………..6.51

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.7  DEPARTURE…….+0.2
TOTAL SNOWFALL FOR THE MONTH…………….1.1  DEPARTURE…….-2.4
TOTAL SNOWFALL FOR THE SEASON…………..21.9  DEPARTURE……-14.7

PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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

2/1   40/23/32/+6/0.03/0.4/…/..           43 W   AERO 44 W   RMY 47
2/2   38/25/32/+6/T/T/…/..                36 WNW AERO 37 WNW RMY 36
2/3   30/19/25/-1/0.00/0.0/…/..           28 WNW AERO 29 WNW RMY 31
2/4   31/15/23/-3/0.00/0.0/…/..           31 WNW AERO 30 WNW RMY N/A
2/5   43/22/33/+7/0.00/0.0/…/..           38 SSW AERO 41 SSW RMY N/A
2/6   37/28/33/+7/0.00/0.0/…/..           41 WNW AERO 41 WNW RMY 43
2/7   37/30/34/+7/0.54/0.7/…/..           32 ENE AERO 31 ENE RMY 32

2/8  Low temp since midnight is 25F; normal low is now 18F

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

RECORDS FOR FEBRUARY 8
HIGH 60F IN 1933
LOW -9F IN 1934
PRECIP 2.50 INS. IN 1945
SNOWFALL 16.1 INS. IN 2013
PEAK GUST 63e MPH NE IN 1945, 2013

RECORDS FOR FEBRUARY 9
HIGH 58F IN 1990
LOW -21F IN 1934 [LOWEST TEMPERATURE ON RECORD] PRECIP 2.12 INS. IN 1969
SNOWFALL 14.0 INS. IN 2015
PEAK GUST 89 MPH NE IN 1969

TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle

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Blue Hill Observatory & Science Center · Legal

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Please read the full Policy before accessing Observatory data · Effective January 1, 2025

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Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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