Sunday, March 15, 2015
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, MARCH 15, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME
RAW AND OVERCAST WITH SNOW AND RAIN SHOWERS EXPECTED THIS AFTERNOON
Temperatures didn’t get below freezing last night as overcast conditions
persisted through the 10:00 AM observation with a few breaks in the overcast.
Light snow and rain showers began to impact the area just before the 10:00 AM
observation and intermittent precipitation continued throughout the day.
Temperatures rose to 41 at the 2:00 observation as rain and snow showers
continued.
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 remains at 21 inches as of this morning. This is
the 41st 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 15th)
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) 41 days, 3 Feb – 15 Mar, 2015 (through 1 PM March 15th)
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: Overcast Stratocumulus, Breaks in overcast distance
SSW-WNW
Temperature: 34F; Dew Point: 33F; Wind: WNW at 12 kts
Sea-level pressure: 29.58 ins. Hg, Rising Steadily
Visibility: 40 miles, except 55 miles WNW, 25 NE-E Thin fog
6-hr Max temp: 34F
6-hr Min temp: 33F
24-hr precip: 0.84
24-hr snowfall: None
Snow depth: 21 inches
BHO SA 1155 E43 OVC 40 020/34/33/3012/958/ FEW LWR SC BINOVC
DSNT SSW-WNW VSBY WNW 55 NE-E 25 THN FG/ 8/5// 4/021 52003
MANUAL 70084 ASOS MMMM 10034 20033
10 A.M.
Weather: Very light snow, Few Stratocumulus/Cumulus S-W Overcast
Nimbostratus, small break in overcast SSW-WSW
Temperature: 36F; Dew Point: 32F; Wind: WNW at 11 kts,
Sea-level pressure: 29.58 ins. Hg, rising slightly
Visibility: 30 miles, S 40 NE-E 12 snow
3-hr precip: TRACE
BHO SA 1455 E55 OVC 30S- 021/36/34/2911/958/ FEW LWR SC/CU S-W BINOVC
DSNT SSW-WSW VSBY S 40 NE-E 12 SB53/ 8/82/ 53001 6000/
1 P.M.
Weather: Light rain and snow showers, Few cumulus fractus, Broken cumulus,
Overcast Nimbostratus, thin spots in overcast, sun dimly visible
Temperature: 41F; Dew Point: 38F; Wind: WNW at 13 kts gusting to 21
Sea-Level Pressure: 29.60 ins. Hg, rising slightly
Visibility: 35 miles, WNW-NNW 30 miles very light rain and snow showers
6-hr Max temp: 41F
6-hr Min temp: 34F
6-hr precip: T
BHO SA 1755 E40 OVC 35RW-SW- 024/41/38/2913G21/960/ FEW LWR CU
ALQDS THN SPTS INOVC VSBY WNW-NNE 30 RW-SW-CTD/ 8/72/ 52003 MANUAL
6000/ 10041 20034
SUMMARY FOR SATURDAY, MARCH 14, 2015
TEMPERATURE (DEGREES F)
MAX…..41 NORMAL…..44
MIN…..29 NORMAL…..26
MEAN….35 NORMAL…..35
DEPARTURE FROM 30-YEAR NORMAL……………………….0
TOTAL DEPARTURE FOR THE MONTH………………………-26 [-1.9 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..30 DEPARTURE………..+5
TOTAL HEATING UNITS FOR THE MONTH………….477 DEPARTURE……….+26
TOTAL HEATING UNITS FOR THE SEASON………..5185 DEPARTURE………+166
TOTAL HEATING UNITS LAST SEASON TO DATE……5099 DIFFERENCE………+86
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………23 SSW AT 1:44 A.M.
ASOS…………………..N/A
DAVIS………………….N/A RMY 23
FASTEST MILE FOR YESTERDAY………………..16 SSW AT 1:32 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..N/A
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….N/A
AVERAGE WIND SPEED AND DIRECTION…………11.1 SSW
ASOS…………………N/A
DAVIS…………………10.8 S [182 degrees]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.84 DEPARTURE…..+0.67
ASOS…………..N/A
TOTAL PRECIPITATION FOR THE MONTH……….1.59 DEPARTURE…..-0.65
ASOS…………..N/A
TOTAL PRECIPITATION FOR THE YEAR……….12.93 DEPARTURE…..+2.40
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……-0.4
TOTAL SNOWFALL FOR THE MONTH…………….5.9 DEPARTURE……-1.0
TOTAL SNOWFALL FOR THE SEASON………….143.4 DEPARTURE…..+89.5
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 41/29/35/0/0.84/0.0/000/00 23 SSW RMY 23
3/15 morning low temp: 33F 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 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: Robert Skilling/Robert Millette
