BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, MARCH 25, 2013
ALL TIMES ARE IN EASTERN STANDARD TIME
 
MOSTLY CLOUDY AND COLD WITH GUSTY NE-ENE WINDS
 
Colder than normal March temperatures continue
today with a mostly cloudy sky and gusty
NE-ENE winds to 25 to 32 MPH.  The high temp.
had only touched 40F by early afternoon. 
 
BLUE HILL SNOWIEST MARCHES, INCHES (1885-2013)
1) 52.0 in 1956
2) 42.2 in 1916
3) 41.4 in 2001
4) 41.0 in 1967
5) 37.2 in 2013  (through 3/24/2013)
6) 35.5 in 1993
 
Today's observations:
 
7 A.M.
Weather: Scattered dense cirrus/cirrostratus, broken dense cirrus/cirrostratus,
overcast cirrus/cirrostratus, thin spots in overcast mostly overhead
Temperature: 33F; Dew Point: 29F; Wind: NNE at 9 kts,
Sea-level pressure: 29.70 ins. Hg, falling then rising slightly 
Visibility: 35 miles, except 50 miles WNW, distant haze
Snow depth: 2 inches
6-hour min. temp: 31F
BHO SA 1155 200 SCT E220 BKN 250 OVC 35 056/33/29/0309/970/
FEW AC DSNT SE DNS CI/CS ALQDS OVC PTLY THN MSTLY OVHD BINOVC/CLR 
SKY BND ALG HRZN DSNT N-NE THN K LYR SW-N-NNE VSBY WNW 50 DSNT HZ 
ALQDS/ 8/047 4/002 55004 10034 20031 
 
10 A.M.
Weather: Broken stratocumulus, overcast stratocumulus 
Temperature: 38F; Dew Point: 33F; Wind: ENE at 12 kts,
Wind: Direction variable NNE-E
Sea-level pressure: 29.66 ins. Hg, falling then more rapidly
Visibility: 45 miles, distant haze
BHO SA 1455 E16 BKN 20 OVC 45 044/38/33/0612/966/ THN SPTS IOVC
HIER CLD OCNL VSB SUN OCNL DMLY VSB WND 02V08/ 8/5// 58012
 
1 P.M.
Weather: Scattered stratocumulus, broken stratocumulus,
overcast stratocumulus, few lower stratus fractus, ceiling
is ragged, breaks in overcast all quadrants, higher clouds
visible, thin cirrus overhead, altocumulus layer distant NE-S 
Temperature: 39F; Dew Point: 34F; Wind: ENE at 13 kts,
Wind: Gust to 23 kts past hour
Sea-level pressure: 29.60 ins. Hg, falling then more rapidly
Visibility: 45 miles, distant haze 
6-hour max. temp: 40F
BHO SA 1755 15 SCT E30 BKN 50 OVC 45 025/39/34/0613/960/ CIG RGD
FEW STFRA SC DRK BASES MDT TOPS BINOVC ALQDS FEW THN CI VSB OVHD
HIER AC CLD LYR VSB DSNT NE-S DSNT HZ WND GST 23 KTS PST HR WND 
02V09/ 8/571 58019 10040 20033
 
WEATHER SUMMARY FOR SUNDAY, MARCH 24
 
TEMPERATURE (DEGREES F)
MAX.....45     NORMAL.....47
MIN.....28     NORMAL.....29                         
MEAN....37     NORMAL.....38  
 
DEPARTURE FROM 30-YEAR NORMAL.......................-1
TOTAL DEPARTURE FOR THE MONTH.......................-6 [-0.5 DEGREE/DAY]
 
HEATING DEGREE DAYS 
TOTAL HEATING UNITS FOR YESTERDAY............28   DEPARTURE............+1
TOTAL HEATING UNITS FOR THE MONTH...........740   DEPARTURE............+3
TOTAL HEATING UNITS FOR THE SEASON.........4860   DEPARTURE..........-444
TOTAL HEATING UNITS LAST SEASON TO DATE....4109   DIFFERENCE.........+751
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY...............29 WNW AT  1:18 A.M. 
                   AERO....................28 WNW AT  1:18 A.M. 
                   ASOS....................30 WNW AT  1:18 A.M.
                   DAVIS...................29 W   AT  1-2  A.M. RMY: N/A
THE FASTEST MILE FOR YESTERDAY.............23 W   AT 12:53 A.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE..............22 W   AT 12:53 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE.............20 WNW AT  1-2  A.M. 
AVERAGE WIND SPEED AND DIRECTION.........10.5 NW
                   ASOS..................10.2
                   DAVIS..................9.6 WNW [300 deg]
 
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..........5.58  DEPARTURE...........+1.28
                         ASOS..............5.74
TOTAL PRECIPITATION FOR THE YEAR..........13.97  DEPARTURE...........+1.25
                         ASOS..............N/A*
*ASOS malfunctioned during storm on 2/8-9, leading to erroneous totals
                       
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M.........0.0   DEPARTURE............-0.3
TOTAL SNOWFALL FOR THE MONTH..............37.2   DEPARTURE...........+26.6
TOTAL SNOWFALL FOR THE SEASON.............98.4   DEPARTURE...........+40.8
 
PRELIMINARY CLIMATE SUMMARY FOR MARCH 2013 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust
RMY:  RMY = R.M. Young wind gust recording system added 8/9/2011
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
3/1  39/33/36/+5/0.00/0.0/047/07     25 NNW AERO 24 MPH NNW RMY 28
3/2  42/30/36/+5/0.00/0.0/400/59     18 NW  AERO 16 MPH NW  RMY 21
3/3  42/30/36/+4/0.01/0.2/034/05     17 WNW AERO 15 MPH WNW RMY N/A
3/4  39/26/33/+1/T/T/328/48          32 NW  AERO 33 MPH WNW RMY 37
3/5  43/30/37/+5/0/0/123/18          27 WNW AERO 24 MPH WNW RMY N/A
3/6  37/33/35/+3/0.19/0.3/000/00     47 NE  AERO 46 MPH NE  RMY 51
3/7  34/29/32/-1/1.36/11.5/000/00    45 NE  AERO 45 MPH NE  RMY 47
3/8  37/28/33/0/1.89/18.0/000/00     41 NNE AERO 39 MPH NNW RMY 45
3/9  40/29/35/+2/0.00/0.0/677/97     29 N   AERO 23 MPH N   RMY 28
3/10 40/27/34/+1/0.00/0.0/372/53     21 S   AERO 17 MPH S   RMY N/A
3/11 50/32/41/+7/0.00/0.0/099/14     27 S   AERO 25 MPH S   RMY N/A
3/12 52/39/46/+12/0.51/0.0/000/00    45 S   AERO 46 MPH S   RMY 47
3/13 50/33/42/+8/T/0.0/674/95        32 WNW AERO 32 MPH WNW RMY 34
3/14 34/20/27/-8/0.00/0.0/014/02     37 W   AERO 37 MPH NW  RMY 38
3/15 39/17/28/-7/0.00/0.0/408/57     35 NW  AERO 37 MPH W   RMY 34
3/16 39/25/32/-3/0.00/0.0/352/49     23 NW  AERO 18 MPH WNW RMY 20
3/17 38/23/31/-5/0.00/0.0/665/95     32 WNW AERO 28 MPH WNW RMY 34
3/18 37/16/27/-9/0.14/1.1/557/77     27 NNW AERO 23 MPH NNW RMY N/A
3/19 35/26/31/-5/1.45/5.8/000/00     42 E   AERO 39 MPH E   RMY 43  `
3/20 37/22/30/-7/0.00/0.0/.../..     37 W   AERO 33 MPH W   RMY 38
3/21 36/27/32/-5/0.03/0.3/.../..     15 NNW AERO  8 MPH NW  RMY N/A
3/22 39/26/33/-4/0.00/0.0/.../..     30 W   AERO 29 MPH W   RMY 34
3/23 41/28/35/-3/0.00/0.0/.../..     40 W   AERO 38 MPH W   RMY 42
3/24 45/28/37/-1/0.00/0.0/.../..     29 WNW AERO 28 MPH WNW RMY N/A
 
3/25 the morning low temp: 31F; the normal low is now 30F
 
DAILY RECORDS FOR MARCH 2013
3/7 - NEW DAILY RECORD SNOWFALL OF 11.5 INCHES;
      surpasses the previous record of 11.1 inches in 1967
3/8 - NEW DAILY RECORD SNOWFALL OF 18.0 INCHES;
      surpasses the previous record of 8.3 inches in 1941
 
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: Robert Skilling