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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, JANUARY 9, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
DAMP AND COOL AHEAD OF A WET WARMUP
The temperature fell to only 37F at the summit this morning, well above
average. The thick stratus cloud cover has made for a slow rise
in temperatures, with a high so far of 39F, which is also above average.
Winds have been light all day and very hazy conditions with light to very
light drizzle occurring since the 7 o’clock ob. A thin fog has formed in
advance of the heavy rain and near record warmth is forecast for later
on Sunday.
For Sunday, the current record high for Blue Hills is 54F set in 2000.
There is a good chance this record will fall with the pending warm weather.
There will also be very heavy rain fall with an associated low pressure system
And it is possible that we will come close to the 2.16 Inches of Precipitation
Set back in 1935.
Today’s Observations:
7 A.M.
Weather: Overcast Stratus, Light Drizzle
Temperature: 37F; Dew Point: 33F; Wind: E at 6 kts
Wind: Light
Sea-level pressure: 30.25 ins. Hg, increasing unsteadily
Visibility: 25 miles, hazy
6-hr Max temp: 37F
6-hr Min temp: 37F
24-hr precip: Trace.
24-hr snowfall: 0.0 ins.
Snow depth: Trace
BHO SA 1155 E25 OVC 25L- 243/37/33/0906/024/ HAZY WND LGT/ 8/6// 52006
MANUAL 6000/ 10037 20037
10 A.M.
Weather: Scattered stratus fractus, overcast stratus, very light drizzle
Temperature: 38F; Dew Point: 36F; Wind: N at 3 kts
Wind: Light
Sea-level pressure: 30.28 ins. Hg, steady then increasing
Visibility: 10 miles, except 20 miles E-S and 15 miles S-SW, hazy
BHO SA 1455 10 SCT E22 OVC 10L- 254/38/36/0303/028/ HAZY THN FG PCPN VRY LGT
WND LGT VSBY E-S 20 S-SW 15/ 8/7// 53011 MANUAL 6000/
1 P.M.
Weather: Fog and very light drizzle
Temperature: 39F; Dew Point: 36F; Wind: E at 6 kts
Wind: Light
Sea-level pressure: 30.23 ins. Hg, steady then decreasing
Visibility: 5 miles, Fog
6-hr Max temp: 39F
6-hr Min temp: 37F
BHO SA 1755 W4 X 5FL- 238/39/36/E3606/023/ PCPN VRY LGT WND LGT/
58016 MANUAL 6000/ 10039 20037
SUMMARY FOR FRIDAY, JANUARY 8, 2016
TEMPERATURE (DEGREES F)
MAX…..40 NORMAL…..34
MIN…..28 NORMAL…..18
MEAN….34 NORMAL…..26
DEPARTURE FROM 30-YEAR NORMAL…………………..+8
TOTAL DEPARTURE FOR THE MONTH…………………..+21 [+2.3 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..31 DEPARTURE……….-8
TOTAL HEATING UNITS FOR THE MONTH………….289 DEPARTURE………-21
TOTAL HEATING UNITS FOR THE SEASON………..1945 DEPARTURE……..-670
TOTAL HEATING UNITS LAST SEASON TO DATE……2392 DIFFERENCE…….-447
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….28 E AT 4:28 P.M.*
AEROVANE………………..25 ENE AT 4:52 P.M.*
ASOS……………………28 E AT 4:31 P.M.
DAVIS…………………..27 ENE AT 4:31 P.M. RMY 25
FASTEST MILE FOR YESTERDAY…………………18 E AT 5:14 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………18 E AT 11:28 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..17 E AT 2:40 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..12.0 E
ASOS………………….12.3
DAVIS…………………10.7 ENE [61 Deg.]
*last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…TRACE DEPARTURE……-0.14
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH………TRACE DEPARTURE……-1.14
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE YEAR……….TRACE DEPARTURE……-1.14
ASOS…………..0.00
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE…….-0.5
TOTAL SNOWFALL FOR THE MONTH…………….0.2 DEPARTURE…….-4.2
TOTAL SNOWFALL FOR THE SEASON……………1.5 DEPARTURE……-18.9
PRELIMINARY CLIMATE SUMMARY FOR JANUARY CALENDAR DAY DATA
DATA REPORTED:
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
1/1 37/29/33/+6/0.00/0.0/…/.. 29 W RMY 29
1/2 37/27/32/+5/0.00/0.0/…/.. 31 W RMY N/A
1/3 41/27/34/+8/0.00/0.0/…/.. 28 W RMY 29
1/4 30/10/20/-6/T/T/000/00 29 NNW RMY 29
1/5 23/4/14/-12/0.00/0.0/…/.. 28 NNW RMY N/A
1/6 43/17/30/+4/0.00/0.0/…/.. 24 SW RMY 24
1/7 43/25/34/+8/0.00/0.0/…/.. 21 SW RMY N/A
1/8 40/28/34/+8/T/0.0/…/.. 28 E AERO 25 ENE RMY 25
1/9 low since midnight is 37F; normal low is now 18F
DAILY RECORDS FOR JANUARY 2016
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR JANUARY 9
HIGH 62F IN 1937
LOW -9F IN 1968
PRECIP 3.00 INS. IN 1956
SNOWFALL 10.0 INS. IN 1904
PEAK GUST 101e MPH SE IN 1978 [RECORD FOR MONTH]
RECORDS FOR JANUARY 10
HIGH 54F IN 2000
LOW -7F IN 2004
PRECIP 2.16 INS. IN 1935
SNOWFALL 6.3 INS. IN 1977
PEAK GUST 73e SE IN 1977
TODAY’S REPORT PREPARED BY: Robert Millette
