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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, MARCH 15, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
STEADY RAIN, THICK FOG AND EASTERLY WINDS
PRODUCE RAW CONDITIONS ATOP GREAT BLUE HILL
Temperatures fell through yesterday afternoon, eventually
dropping to a 24-hr minimum of 36F along with a period of
steady light ice pellets. Ice pellets only accumulated to a
trace due to warmer than freezing surface temperatures.
A transition to steadier rain overnight lasted through this
morning totaling 1.05 inches from 7:00 AM EST yesterday morning
through 7:00 AM EST today. An additional 0.13 inches of rain
fell by the 10:00 AM EST observation. Through 7:00 AM EST
this morning rain for the month of March is 0.61 inches
below normal and 0.34 above normal for the year. Snowfall
is now 6.4 inches below normal for them month and 15.8
inches below normal for the year.
By this afternoon’s 1:00 PM EST observation light rain was
continuing to fall with thick fog reducing visibility to 1/8
of a mile. Temperatures had reached a daytime maximum of 45F.
Today’s Observations:
7 A.M.
Weather: Light rain, thick fog
Temperature: 41F; Dew Point: 41F; Wind: ENE at 19G27 kts
Peak Wind: 30 knots ENE at 6:36 AM EST
Sea-level pressure: 29.91 ins. Hg, falling, then more quickly
Visibility: 1/4 of a mile, light rain and thick fog
6-hr Max temp: 42F
6-hr Min temp: 39F
24-hr precip: 1.05 ins.
24-hr snowfall: Trace, ice pellets
BHO SA 1155 W3 X 1/4R-F 129/41/41/0719G27/991/ PK WND 0630/36/
8//// 58019 ASOS 60061 70106 MANUAL 70105 10042 20039
10 A.M.
Weather: Light rain, thick fog
Temperature: 42F; Dew Point: 42F; Wind: NE at 16G25kts
Peak Wind: 26 knots NE at 9:39 AM EST
Sea-level pressure: 29.87 ins. Hg, falling steadily
Visibility: 1/8 of a mile, light rain and thick fog
3-hr precip: 0.13 ins.
BHO SA 1455 W3 X 1/8R-F 116/42/42/0516G25/987/
PK WND 0526/39/ 8//// 57013 ASOS 60014 MANUAL 60013
1 P.M.
Weather: Light rain, thick fog
Temperature: 44F; Dew Point: 44F; Wind: ENE at 12G21 kts,
Sea-level pressure: 29.81 ins. Hg, falling, then more quickly
Visibility: 1/8 of a mile, light rain and thick fog
6-hr Max temp: 45F
6-hr Min temp: 41F
6-hr precip: 0.24 ins.
BHO SA 1755 W3 X 1/8R-F 095/44/44/0612G21/981/
8//// 58021 ASOS 60027 MANUAL 60024 10045 20041
SUMMARY FOR MONDAY, MARCH 14, 2016
TEMPERATURE (DEGREES F)
MAX…..46 NORMAL…..44
MIN…..36 NORMAL…..26
MEAN….41 NORMAL…..35
DEPARTURE FROM 30-YEAR NORMAL…………………….+6
TOTAL DEPARTURE FOR THE MONTH…………………..+115 [+8.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..24 DEPARTURE……….-6
TOTAL HEATING UNITS FOR THE MONTH………….336 DEPARTURE……..-115
TOTAL HEATING UNITS FOR THE SEASON………..4019 DEPARTURE…….-1000
TOTAL HEATING UNITS LAST SEASON TO DATE……5185 DIFFERENCE……-1166
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….32 E AT 11:32 P.M.
ASOS……………………32 ENE AT 12:30 A.M.
DAVIS…………………..30 E AT 11:32 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY…………………23 ENE AT 10:59 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………22 E AT 11:33 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..20 E AT 10:47 P.M.
AVERAGE WIND SPEED AND DIRECTION………….15.6 E
ASOS………………….14.8
DAVIS…………………13.5 E [081 Deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….1.05 DEPARTURE……+0.88
ASOS…………..1.06
TOTAL PRECIPITATION FOR THE MONTH……….1.80 DEPARTURE……-0.61
ASOS…………..1.81
TOTAL PRECIPITATION FOR THE YEAR……….11.17 DEPARTURE……+0.34
ASOS………….11.77
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……..TRACE DEPARTURE…….-0.4
TOTAL SNOWFALL FOR THE MONTH…………….0.5 DEPARTURE…….-6.4
TOTAL SNOWFALL FOR THE SEASON…………..38.6 DEPARTURE……-15.8
PRELIMINARY CLIMATE SUMMARY FOR MARCH 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
3/1 45/30/38/+7/0.00/0.0/…/.. 54 W AERO 60 W RMY 53
3/2 52/21/37/+6/0.41/0.0/…/.. 44 WNW AERP 47 NW RMY 42
3/3 34/16/25/-7/0.00/0.0/…/.. 30 WNW AERO 36 WNW RMY N/A
3/4 30/24/27/-5/…./…/…/.. 32 N AERO 38 N RMY 34
3/5 35/20/28/-4/0.00/0.0/…/.. 31 N AERO 36 N RMY N/A
3/6 40/25/33/+1/0.00/0.0/…/.. 21 SSE AERO 21 SSE RMY N/A
3/7 49/29/39/+6/0.00/0.0/…/.. 43 SSW AERO 48 SSW RMY 45
3/8 55/35/45/+12/0.00/0.0/…/.. 23 S AERO 24 S RMY N/A
3/9 75/38/57/+24/0.00/0.0/…/.. 32 S AERO 36 S RMY 33
3/10 64/50/57/+24/…./0.0/000/00 31 NNW AERO 38 NNW RMY 32
3/11 56/38/47/+13/T/0.0/… .. 28 NNW AERO 36 NNW RMY 29
3/12 58/31/45/+11/0.00/0.0/…/.. 30 SW AERO 33 SW RMY 30
3/13 63/46/55/+21/0.00/0.0/…/.. 32 NW AERO 35 NW RMY 30
3/14 46/36/41/+6/…./T/000/00 32 E AERO 33 E RMY N/A
3/15 morning low temp. since midnight 39F; normal now 26F
DAILY RECORDS FOR MARCH 2016
***3/9/16: NEW DAILY RECORD MAXIMUM TEMPERATURE OF 75F,
BREAKS PREVIOUS RECORD OF 71F SET BACK IN 2000.***
***3/10/16: NEW DAILY RECORD HIGH MINIMUM TEMPERATURE OF 50F,
BREAKS PREVIOUS RECORD OF 42F SET AND TIED IN 1977, 2006***
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR MARCH 15
HIGH 80 IN 1990
LOW 6 IN 1993
PRE 2.86 INS. IN 2010
SNOW 12.0 INS. 1967
WIND 73e MPH ESE IN 1940
RECORDS FOR MARCH 16
HIGH 73 IN 1990
LOW 8 IN 1932
PRE 1.95 INS. IN 1900
SNOW 10.0 INS. IN 1896
WIND 79 MPH NE IN 1956
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
