Wednesday, March 25, 2015
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, MARCH 25, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME
CLEAR SKIES TO END TODAY AS THE MERCURY BEGINS TO CLIMB
Following multiple below normal temperature days, today
looks to be on track to meet or exceed today’s daily
normal temperatures. Today’s normal maximum is 47F and
minimum 30F. This morning’s overnight low of 25F did not
last for long, as the mercury jumped 6 degrees during
sunrise. Winds have remained light and even completely
calm at times.
By the 1:00 PM EST observation cirrus had overspread the
region, with light distant haze in all directions. With
the thin cloud cover, snow melt has continued through
this morning into early afternoon, as temperatures
have climbed to a maximum of 48F so far.
For more information about this historic winter, visit our
web site at bluehill.org.
BHO Greatest Seasonal Snowfall, inches (1885-2015):
1) 145.8 in 2014-2015 (through 1 PM March 25th)
2) 144.4 in 1995-1996
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
Today’s Observations:
7 A.M.
Weather: Clear, few cirrus distant S-W
Temperature: 33F; Dew Point: 14F; Wind: N at 8 kts
Sea-level pressure: 30.41 ins. Hg, rising then more slowly
Visibility: 60 miles, distant haze
6-hr Max temp: 33F
6-hr Min temp: 25F
24-hr precip: none
24-hr snowfall: none
Snow depth: 14 inches
BHO SA 1155 CLR 60 298/33/14/3508/041/ FEW CI DSNT S-W LGT DSNT HZ
ALQDS/ 8/001 4/014 51013 10033 20025
10 A.M.
Weather: Clear, few cirrostratus distant invading SSE-WNW
Temperature: 43F; Dew Point: 16F; Wind: estimated S at 3 kts
Wind Speed: Light
Sea-level pressure: 30.42 ins. Hg, rising, then more quickly
Visibility: 50 miles, light distant haze
BHO SA 1455 CLR 50 302/43/16/E1803/042/ FEW CS DSNT INVDNG SSE-WNW
K LYR OVR CITY N LGT DSNT HZ ALQDS WND LGT/ 8/005 53004
1 P.M.
Weather: Broken cirrus/cirrostratus
Temperature: 48F; Dew Point: 16F; Wind: S at 9 kts
Sea-Level Pressure: 30.36 ins. Hg, rising, then falling
Visibility: 70 miles, light distant haze
6-hr Max temp: 48F
6-hr Min temp: 33F
BHO SA 1755 E250 BKN 70 280/48/16/1809/036/ LGT DSNT HZ ALQDS/
8/004 58022 10048 20033
SUMMARY FOR TUESDAY, MARCH 24, 2015
TEMPERATURE (DEGREES F)
MAX…..39 NORMAL…..47
MIN…..16 NORMAL…..29
MEAN….28 NORMAL…..38
DEPARTURE FROM 30-YEAR NORMAL………………………-10
TOTAL DEPARTURE FOR THE MONTH……………………..-102 [-4.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..37 DEPARTURE……….+10
TOTAL HEATING UNITS FOR THE MONTH………….838 DEPARTURE………+101
TOTAL HEATING UNITS FOR THE SEASON………..5546 DEPARTURE………+242
TOTAL HEATING UNITS LAST SEASON TO DATE……5305 DIFFERENCE……..+127
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………20 NNW AT 12:43 A.M.*
ASOS…………………..19 NNW AT 12:42 A.M.
DAVIS………………….16 NNW AT 12:43 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………..14 NNW AT 12:42 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..14 NNW AT 12:42 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….13 NNW AT 12:43 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..7.0 NNW
ASOS…………………..7.6
DAVIS………………….6.2 NW [308 degrees]
* Last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE…..-0.19
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.96 DEPARTURE…..-2.17
ASOS…………..N/A
TOTAL PRECIPITATION FOR THE YEAR……….13.30 DEPARTURE…..+0.88
ASOS…………..N/A ***
*** ASOS monthly and 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……-0.3
TOTAL SNOWFALL FOR THE MONTH…………….8.3 DEPARTURE……-2.4
TOTAL SNOWFALL FOR THE SEASON………….145.8 DEPARTURE…..+88.1
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/-7/0.00/0.0/567/82 30 WSW RMY 30
3/8 41/25/33/0/T/T/208/30 38 WNW RMY 41
3/9 45/28/37/+4/0.00/0.0/565/81 40 W RMY 39
3/10 52/32/42/+9/…./0.0/252/36 28 S RMY 27
3/11 55/38/47/+13/…./0.0/604/86 37 WNW RMY N/A
3/12 38/23/31/-3/0.00/0.0/677/96 44 N RMY 48
3/13 40/18/29/-5/0.00/0.0/581/82 23 SSW RMY 26
3/14 41/29/35/0/0.84/0.0/000/00 23 SSW RMY 23
3/15 41/24/33/-2/0.03/0.6/021/03 39 NW RMY 39
3/16 44/23/34/-1/0.00/0.0/516/72 28 NW RMY N/A
3/17 48/25/37/+1/0.17/T/173/24 53 NW RMY 63
3/18 30/19/25/-11/0.00/0.0/700/97 51 NW RMY 56
3/19 31/15/23/-13/0.00/0.0/696/96 37 NW RMY 39
3/20 32/19/26/-11/…./…/000/00 17 NNW RMY 15
3/21 41/25/33/-4/…./…/…/.. 36 WNW RMY N/A
3/22 36/17/27/-10/0.00/0.0/…/.. 50 W RMY 55
3/23 31/14/23/-15/0.00/0.0/…/.. 36 WNW RMY 35
3/24 39/16/28/-10/0.00/0.0/…/.. 20 NNW RMY N/A
3/25 low since midnight is 25F normal low is 30F
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 25
HIGH 76 IN 1910
LOW 8 IN 1888, 1956
PRECIP 1.84 INS. IN 1909
SNOWFALL 1.0 INS. IN 1912
PEAK GUST 69 MPH SE IN 1969
RECORDS FOR MARCH 26
HIGH 76 IN 1922, 1949
LOW 6 IN 1960
PRECIP 1.99 INS. IN 1988
SNOWFALL 5.4 INS. IN 2001
PEAK GUST 63 MPH S IN 1970
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
