BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, FEBRUARY 14, 2017
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNNY AND DRY DAY
After a few days of overcast skies and foggy conditions,
blue skies returned to the observatory today. Mid and
high clouds moved into the area by early afternoon after
a morning of clear skies. Visibility remained at 70 miles
during each observation.
Temperatures had reached above freezing by 1:00PM, helping
the abundant sunshine to melt our 14 inch snow cover. The
past week’s storms have left us almost 2.50 inches above
normal for liquid precip. and 10.0 inches above normal
for snowfall.
Today’s Observations:
7 A.M.
Weather: Few distant cumulus NE-ESE, few cirrostratus S-W
Temperature: 17F; Dew Point: 13F; Wind: WNW at 11 kts
Sea-level pressure: 29.89 ins. Hg, falling, then rising
Visibility: 70 miles
6-hr Max temp: 19F
6-hr Min temp: 16F
24-hr precip: 0.02 in.
24-hr snowfall: 0.1 in.
BHO SA 1155 CLR 70 123/17/13/2911/989/ FEW DSNT CU NE-ESE FEW CS S-W
NEW SNW PST 24 HRS 0.1 INS/ 8/105 4/014 53004 MANUAL 70002 ASOS 70002
10019 20016
10 A.M.
Weather: Few distant cumulus NE-ESE, scattered cirrus
Temperature: 25F; Dew Point: 15F; Wind: NW at 7 kts
Sea-level pressure: 29.89 ins. Hg, rising, then falling
Visibility: 70 miles
BHO SA 1455 250 SCT 70 123/25/15/3107/989/ FEW DSNT CU NE-ESE/
8/102 4/014 58000
1 P.M.
Weather: Scattered altostratus, scattered cirrocumulus
Temperature: 31F; Dew Point: 18F; Wind: SSW at 4 kts,
Wind Speed: Light
Sea-level pressure: 29.81 ins. Hg, falling, then more quickly
Visibility: 70 miles
BHO SA 1755 160 SCT 200 SCT 094/31/18/2104/981/ WND LGT/
8/019 4/014 58029 10033 20017
SUMMARY FOR MONDAY, FEBRUARY 13, 2017
TEMPERATURE (DEGREES F)
MAX…..32 NORMAL…..36
MIN…..20 NORMAL…..19
MEAN….26 NORMAL…..28
DEPARTURE FROM 30-YEAR NORMAL…………………….-2
TOTAL DEPARTURE FOR THE MONTH……………………+13 [+0.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..39 DEPARTURE……….+2
TOTAL HEATING UNITS FOR THE MONTH………….486 DEPARTURE………-14
TOTAL HEATING UNITS FOR THE SEASON………..3513 DEPARTURE……..-518
TOTAL HEATING UNITS LAST SEASON TO DATE……3201 DIFFERENCE…….+312
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….48 NW AT 2:19 P.M.
AERO……………………60 NW AT 12:23 P.M.
ASOS……………………57 NW AT 2:20 P.M.
DAVIS…………………..56 NNW AT 2:19 P.M. RMY 61
FASTEST MILE FOR YESTERDAY…………………40 NW AT 12:24 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………41 NW AT 12:25 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..43 NNW AT 12:24 P.M.
AVERAGE WIND SPEED AND DIRECTION………….20.9 NW
ASOS………………….21.0
DAVIS…………………16.1 NNW [340 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.02 DEPARTURE……-0.13
ASOS…………..0.02
TOTAL PRECIPITATION FOR THE MONTH……….3.29 DEPARTURE……+1.51
ASOS…………….NA
TOTAL PRECIPITATION FOR THE YEAR………..8.79 DEPARTURE……+2.66
ASOS…………….NA
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.1 DEPARTURE…….-0.4
TOTAL SNOWFALL FOR THE MONTH……………28.7 DEPARTURE……+22.3
TOTAL SNOWFALL FOR THE SEASON…………..49.5 DEPARTURE……+10.0
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 49/25/37/+10/T/0.0/…/.. 25 W AERO 25 W RMY 31
2/9 35/8/22/-5/1.60/16.9/…/.. 54 NNE AERO 53 NNE RMY 54
2/10 24/7/16/-11/T/T/…/.. 43 WNW AERO 50 WNW RMY 48
2/11 27/15/21/-6/0.14/2.9/…/.. 21 SE AERO 20 SE RMY 19
2/12 32/17/25/-2/0.71/5.6/…/.. 22 ENE AERO 28 ENE RMY N/A
2/13 32/20/26/-2/0.27/2.2/…/.. 48 NW AERO 60 NW RMY 61
2/14 Low temp since midnight is 16F; normal low is now 19F
DAILY RECORDS FOR FEBRUARY 2017
2/09/17: NEW DAILY RECORD MAXIMUM SNOWFALL OF 16.9 INS.
PREVIOUS RECORD WAS 14.0 INS. SET IN 2015
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR FEBRUARY 14
HIGH 56F IN 1949
LOW -14F IN 2016
PRECIP 2.09 INCHES IN 2007
SNOWFALL 11.0 INCHES IN 1914
PEAK GUST 83 MPH SSW IN 2000
RECORDS FOR FEBRUARY 15
HIGH 60F IN 1954
LOW -18F IN 1943
PRECIP 1.28 INCHES IN 1950
SNOWFALL 14.4 INCHES IN 2015
PEAK GUST 94e MPH WNW IN 1946
TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle
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