BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, MARCH 15, 2017
ALL TIMES ARE IN EASTERN STANDARD TIME
COLD AND CLEAR DAY AFTER STORM
Temperatures remained below normal and freezing today with a high of
27F at the 1:00 PM EST observation. Normal high for today is 44F.
Humidity fell throughout the day but visibility remained consistent
at 70 miles. Skies were clear in the morning with broken cumulus in
the afternoon. Winds were moderate and out of the SW but did not surpass
the peak gust from yesterday of 52 kts (60 MPH) at 1:12 PM EST.
Yesterday’s total storm snowfall through today’s 7:00AM EST observation
measured 7.2 inches, which breaks the previous daily snowfall record of
6.7 inches set in 1958. Liquid precip. measured 2.13 inches.
Today’s Observations:
7 A.M.
Weather: Clear, few cumulus NE-SSE few cirrus E-SSE
Temperature: 16F; Dew Point: 9F; Wind: WSW at 16G24 kts
Sea-level pressure: 29.39 ins. Hg, rising then more slowly
Visibility: 70 miles
6-hr Max temp: 23F
6-hr Min temp: 15F
24-hr precip: 2.13 in.
24-hr snowfall: 6.7 in.
BHO SA 1155 CLR 70 954/16/09/2515G24/939/ FEW CU NE-SSE FEW CI E-SSE
DSNT FG ALQDS THN GLZ NEW SNW PST 24 HRS 6.7 INS/ 8/101 4/006 51024
MANUAL 70213 ASOS 70229 10023 20015
10 A.M.
Weather: Clear, few cumulus all directions
Temperature: 22F; Dew Point: 9F; Wind: WSW at 16G24 kts,
Sea-level pressure: 29.41 ins. Hg, falling then rising
Visibility: 70 miles
BHO SA 1455 CLR 70 959/22/09/2516G24/941/ FEW CU ALQDS/ 8/100 53005
1 P.M.
Weather: Broken cumulus
Temperature: 26F; Dew Point: 10F; Wind: WSW at 15G23 kts,
Peak Wind: 26 kts (30 MPH) WSW at 12:18 PM EST
Sea-level pressure: 29.39 ins. Hg, falling then
Visibility: 70 miles, distant fog E-NW
6-hr Max temp: 27F
6-hr Min temp: 22F
BHO SA 1755 E45 BKN 951/26/10/2515G23/939/ DSNT FG E-NW
PK WND 2526/18/ 8/100 4/006 56008 10027 20022
SUMMARY FOR TUESDAY, MARCH 14, 2017
TEMPERATURE (DEGREES F)
MAX…..38 NORMAL…..44
MIN…..23 NORMAL…..26
MEAN….31 NORMAL…..35
DEPARTURE FROM 30-YEAR NORMAL…………………….-4
TOTAL DEPARTURE FOR THE MONTH……………………-41 [-2.9 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..34 DEPARTURE……….-4
TOTAL HEATING UNITS FOR THE MONTH………….492 DEPARTURE………+41
TOTAL HEATING UNITS FOR THE SEASON………..4369 DEPARTURE……..-650
TOTAL HEATING UNITS LAST SEASON TO DATE……4019 DIFFERENCE…….+350
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….60 NE AT 1:12 P.M.
AERO……………………62 NE AT 1:12 P.M.
ASOS……………………66 ENE AT 1:12 P.M.
DAVIS…………………..58 ENE AT 1:12 P.M. RMY 62
FASTEST MILE FOR YESTERDAY…………………38 NE AT 1:13 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………39 ENE AT 11:43 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..37 ENE AT 12:08 P.M.
AVERAGE WIND SPEED AND DIRECTION………….21.5 NE
ASOS………………….20.3
DAVIS…………………19.0 ENE [66 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….2.13 DEPARTURE……+1.96
ASOS…………..2.29
TOTAL PRECIPITATION FOR THE MONTH……….2.51 DEPARTURE……+0.10
ASOS…………..2.72
TOTAL PRECIPITATION FOR THE YEAR……….11.79 DEPARTURE……+0.96
ASOS……………N/A ***
*** ASOS annual total not available due to erroneous readings
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….6.7 DEPARTURE…….+6.3
TOTAL SNOWFALL FOR THE MONTH……………10.3 DEPARTURE…….+3.4
TOTAL SNOWFALL FOR THE SEASON…………..62.6 DEPARTURE…….+8.7
PRELIMINARY CLIMATE SUMMARY FOR MARCH 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
3/1 61/46/54/+23/0.01/0.0/…/.. 41 S AERO 45 S RMY 45
3/2 55/26/41/+10/T/T/…/.. 58 W AERO 61 W RMY 59
3/3 36/19/28/-4/T/T/…/.. 38 W AERO 44 W RMY N/A
3/4 20/7/14/-18/T/T/…/.. 45 NW AERO 48 NW RMY 51
3/5 29/5/17/-15/0.00/0.0/…/.. 35 WNW AERO 43 WNW*RMY N/A
3/6 40/11/26/-6/0.00/0.0/…/.. 18 WNW AERO 17 NW* RMY N/A
3/7 47/29/38/+5/0.01/0.0/…/.. 32 S AERO 35 S RMY 36
3/8 55/43/49/+16/0.05/0.0/…/.. 35 W AERO 36 W RMY 37
3/9 49/35/42/+9/0.0/0.0/…/.. 53 W AERO 59 W RMY 58
3/10 35/20/28/-5/…./…/…/.. 35 WNW AERO 44 WNW RMY 40
3/11 20/7/14/-20/…./…/…/.. 43 W AERO 47 W RMY 50
3/12 25/4/15/-19/0.00/0.0/…/.. 32 W AERO 40 WNW RMY N/A
3/13 33/8/21/-13/0.00/0.0/…/.. 25 WNW AERO 29 WNW RMY N/A
3/14 38/23/31/-4/34/…/../…/.. 60 NE AERO 62 NE RMY 62
3/15 Low temp since midnight is 15F; normal low is now 26F
DAILY RECORDS FOR MARCH 2017
3/11/17: DAILY RECORD LOW MAXIMUM TEMPERATURE OF 20F,
TIES PREVIOUS RECORD SET IN 1885
3/14/17: DAILY RECORD MAXIMUM SNOWFALL OF 7.2 INS (through 16E),
BREAKS PREVIOUS RECORD OF 6.7 INS SET IN 1958
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: Kaitlin Geagan
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