Saturday, March 14, 2015
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, MARCH 14, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME
RAW, RAINY AND FOGGY TODAY
The first raindrops started to fall shortly before 7:00 A.M. EST here at
Blue Hill this morning, and the rain has continued and intensified during
the day, with 0.22 inches of rain measured through 1PM this afternoon. The
temperature was about a degree above freezing when the rain started, and has
risen slowly throughout the day, so no freezing rain was observed. Shortly
after the rain began, fog moved in as well, dropping the visibility to well
under a mile for most of the day. Winds have turned from SSW to ESE as the
day has gone on, and the barometer has dropped considerably thanks to the low
pressure system brining this unsettled weather.
Seasonal snowfall remains at 143.4 inches, just 1.0 inch below the snowiest
season on record set in 1995-1996. For more information about this historic
winter, visit our web site at bluehill.org.
The average snow depth has fallen to 21 inches as of this morning. This is
the 40th consecutive day with 20 inches or more of snow on the ground which
is firmly in second place all time. The record is 53 days set back in 1948.
BHO Greatest Seasonal Snowfall, inches (1885-2015):
1) 144.4 in 1995-1996
2) 143.4 in 2014-2015 (through 1 PM March 14th)
3) 136.0 in 1947-1948
4) 119.4 in 2004-2005
5) 113.1 in 2002-2003
6) 111.5 in 1915-1916
7) 109.6 in 1966-1967
8) 106.8 in 1955-1956
9) 103.4 in 1903-1904
10) 102.5 in 1922-1923
BHO Longest Duration of 20″+ Snow Depth, (1885-2015):
1) 53 days, 27 Dec, 1947 – 17 Feb, 1948
2) 40 days, 3 Feb – 14 Mar, 2015 (through 1 PM March 14th)
3) 34 days, 5 Feb – 9 Mar, 1920
34 days, 7 Feb – 12 Mar, 1978
5) 23 days, 25 Feb – 19 Mar, 1969
6) 21 days, 27 Jan – 16 Feb, 2011
7) 11 days, 15-25 Mar, 1916
11 days, 5-15 Jan, 1961
Today’s Observations:
7 A.M.
Weather: Light rain, broken stratocumulus, overcast altocumulus/altostratus,
few lower altocumulus distant N, thin smoke layer along horizon N-NNE,
precipitation very light
Temperature: 33F; Dew Point: 30F; Wind: S at 12 kts
Sea-level pressure: 30.23 ins. Hg, falling
Visibility: 40 miles, except 60 miles NE-E
6-hr Max temp: 33F
6-hr Min temp: 29F
24-hr precip: Trace
24-hr snowfall: None
Snow depth: 21 inches
BHO SA 1155 40R- E35 BKN 100 OVC 237/33/30/1912/023/ FEW LWR AC DSNT N
THN K LYR ALG HRZN N-NNE VSBY NE-E 60 R-B50 PCPN VRY LGT/
8/57/ 4/021 57011 10033 20029
10 A.M.
Weather: Sky obscured with light rain and fog
Temperature: 35F; Dew Point: 35F; Wind: SSE at 5 kts,
Wind: Light
Sea-level pressure: 30.17 ins. Hg, falling then falling more rapidly
Visibility: 1/16 mile, light rain and fog
3-hr precip: 0.07 ins.
BHO SA 1455 W3 X 1/16R-F 216/35/35/E1505/017/ WND LGT/ 8////
58021 MANUAL 60007 ASOS 60006
1 P.M.
Weather: Sky obscured by moderate rain and fog
Temperature: 38F; Dew Point: 38F; Wind: ESE at 10 kts
Sea-Level Pressure: 30.05 ins. Hg, falling then falling more rapidly
Visibility: 1/16 mile, rain and fog
6-hr Max temp: 38F
6-hr Min temp: 33F
6-hr precip: 0.22 ins.
BHO SA 1755 W3 X 1/16RF 175/38/38/1110/005/ 8//// 58041
MANUAL 60022 ASOS 60022 10038 20033
SUMMARY FOR FRIDAY, MARCH 13, 2015
TEMPERATURE (DEGREES F)
MAX…..40 NORMAL…..43
MIN…..18 NORMAL…..26
MEAN….29 NORMAL…..34
DEPARTURE FROM 30-YEAR NORMAL……………………….-5
TOTAL DEPARTURE FOR THE MONTH………………………-26 [-2.2 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..36 DEPARTURE………..+5
TOTAL HEATING UNITS FOR THE MONTH………….447 DEPARTURE……….+26
TOTAL HEATING UNITS FOR THE SEASON………..5155 DEPARTURE………+167
TOTAL HEATING UNITS LAST SEASON TO DATE……5059 DIFFERENCE………+97
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………23 SSW AT 8:11 P.M.
ASOS…………………..25 SSW AT 8:12 P.M.
DAVIS………………….24 SSW AT 8:11 P.M. RMY 26
FASTEST MILE FOR YESTERDAY………………..19 SSW AT 8:11 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..18 SSW AT 11:22 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….18 SSW AT 11:22 P.M.
AVERAGE WIND SPEED AND DIRECTION…………11.1 NW
ASOS…………………11.0
DAVIS…………………9.6 W [274 degrees]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….Trace DEPARTURE….-0.16
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….0.75 DEPARTURE…..-1.49
ASOS…………..0.78
TOTAL PRECIPITATION FOR THE YEAR……….12.09 DEPARTURE…..+1.56
ASOS…………..N/A ***
*** ASOS annual totals not available due to erroneous readings
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE……-0.5
TOTAL SNOWFALL FOR THE MONTH…………….5.9 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE SEASON………….143.4 DEPARTURE…..+89.9
PRELIMINARY CLIMATE SUMMARY FOR MARCH CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/SUN(MIN.)/SUN(%)/ PEAK GUST/RMY 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 29/14/22/-9/…./…/000/00 25 SSW RMY 25
3/2 35/22/29/-2/…./…/480/71 44 WNW RMY 48
3/3 32/13/23/-9/…./2.8/340/50 33 S RMY N/A
3/4 41/32/37/+5/…./…/000/00 33 SW RMY 36
3/5 36/16/26/-6/0.02/0.2/000/00 28 NW RMY 29
3/6 26/5/16/-16/0.00/0.0/681/99 28 NW RMY 25
3/7 38/13/26/-7/0.00/0.0/…/.. 30 WSW RMY 30
3/8 41/25/33/0/T/T/…/.. 38 WNW RMY 41
3/9 45/28/37/+4/0.00/0.0/…/.. 40 W RMY 39
3/10 52/32/42/+9/…./0.0/…/.. 28 S RMY 27
3/11 55/38/47/+13/…./0.0/…/.. 37 WNW RMY N/A
3/12 38/23/31/-3/0.00/0.0/…/.. 44 N RMY 48
3/13 40/18/29/-5/0.00/0.0/…/.. 23 SSW RMY 26
3/14 morning low temp: 29F since midnight, normal low is now 26F
DAILY RECORDS FOR MARCH 2015
-NONE SO FAR.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR MARCH 14
HIGH 74 IN 1946
LOW 8 IN 1926
PRECIP 4.95 INS. IN 2010
SNOWFALL 6.7 INS. IN 1958
PEAK GUST 67 MPH ENE IN 2010
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
TODAY’S REPORT PREPARED BY: Jonathan O’Brien
