BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, JUNE 27, 2012
ALL TIMES ARE IN EASTERN STANDARD TIME
 
TEMPERATURES RUNNING COOLER THAN NORMAL FOR LATE JUNE
UNLIKE YESTERDAY THERE IS LITTLE CONVECTIVE SHOWER ACTIVITY
TODAY.
 
Today is a third consecutive day with temperatures averaging
as much as 5 degrees below normal.  Thus, the cooler than
normal June continues close to 2 degrees below normal.  
Despite much warmer weather late this week it appears quite
likely that the month's average will remain below normal
with June breaking the string of 11 consecutive months
warmer than normal.  The string runs from July, 2011, through
and including May, 2012.
No sign of any showers today as of early afternoon except for
one seen in the distance offshore at 2 P.M. ob time.  Yesterday
showers occurred with thunder all along the Mass. east coast
but with only a trace of rain here at the summit.
 
Today's observations:
 
7 A.M.
Weather: Scattered altocumulus, broken dense cirrus, broken cirrus,
few altocumulus lenticularis S-W and dense cirrus W-N 
Temperature: 63F, Dew Point: 54F; Wind: W at 14G21 kts,
Sea-level pressure: 29.62 inches Hg, rising then more slowly 
Visibility: 30 miles, W-N 25 miles, NE-S 35 miles, distant haze
24-hour precip: trace 
6-hour min. temp: 55F
BHO SA 1155 95 SCT E200 BKN 250 BKN 30 031/63/54/2714G21/962/
FEW ACSL S-W DNS CI W-N VSBY W-N 25 NE-S 35/ 8/042 51013 10063 20055 
 
10 A.M.
Weather: Scattered altocumulus and numerous altocumulus lenticularis 
all quadrants, lower lenticularis W-NE, broken dense cirrus, broken 
cirrus, cumulus fractus and cumulus forming all quadrants
Temperature: 70F, Dew Point: 56F; Wind: W at 14 kts,
Wind: Gust to 25 kts past hour
Wind: Direction variable SW-WNW
Sea-level pressure: 29.63 inches Hg, rising then falling
Visibility: 70 miles, light distant haze 
BHO SA 1455 100 SCT 130 SCT 180 SCT E220 BKN 250 BKN 70 035/
70/56/2714/963/ CUFRA/CU FRMG ALQDS NMRS ACSL ALQDS LWR ACSL
W-NE DNS CI ALQDS LGT DSNT HZ WND GST 25 KTS PST HR WND 23V30/
8/142 50004
 
1 P.M.
Weather: Broken moderate cumulus, stratocumulus formed by the
spreading out of cumulus, broken altocumulus lenticularis
E-ESE, broken dense cirrus all quadrants, rain shower or virga
distant NE-ENE moving toward ENE
Temperature: 72F, Dew Point: 58F; Wind: W at 14G22 kts,
Wind: Direction variable WSW-NW
Sea-level pressure: 29.63 inches Hg, falling
Visibility: 70 miles
6-hour max. 75F 
BHO SA 1755 E50 BKN 95 BKN 180 BKN 220 BKN 70 034/72/58/2814G22/963/
MDT CU ALQDS SCCU ALQDS CU DRK BASES WNW-NW ACSL E-ESE DNS CI ALQDS
SHRA/VIRGA DSNT NE-ENE MOVG ENE LGT DSNT HZ WND 25V31/
8/242 58001 10075 20062
 
WEATHER SUMMARY FOR TUESDAY, JUNE 26
 
TEMPERATURE (DEGREES F)
MAX.....71    NORMAL.....78
MIN.....56    NORMAL.....60
MEAN....64    NORMAL.....69
 
DEPARTURE FROM 30-YEAR NORMAL.......................-5
TOTAL DEPARTURE FOR THE MONTH......................-45 [-1.9 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY...............1   DEPARTURE...........0
TOTAL HEATING UNITS FOR THE MONTH..............96   DEPARTURE.........+26
TOTAL HEATING UNITS FOR THE SEASON...........4984   DEPARTURE.......-1383
TOTAL HEATING UNITS LAST SEASON TO DATE......6239   DIFFERENCE......-1255
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.............35 NW  AT  3:45 P.M. *
                   AERO..................36 NW  AT  3:45 P.M.
                   ASOS..................33 NW  AT  3:45 P.M.
                   DAVIS.................33 NW  AT  3:44 P.M. RMY 36
THE FASTEST MILE FOR YESTERDAY...........26 WNW AT  3:44 P.M. * 
MAXIMUM 2-MINUTE ASOS AVERAGE............24 WNW AT  3:42 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE...........24 WNW AT  3:42 P.M.
AVERAGE WIND SPEED AND DIRECTION.......12.0 WNW
                   ASOS................12.0
                   DAVIS...............10.6 WNW [300 deg.]
* last of several occurrences...
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....trace  DEPARTURE...........-0.12
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........4.41   DEPARTURE...........+0.55
                         ASOS..............4.33
TOTAL PRECIPITATION FOR THE YEAR..........17.65   DEPARTURE...........-8.87
                         ASOS.............17.58
 
PRELIMINARY CLIMATE SUMMARY FOR JUNE 2012 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust when significant
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
 
6/1  67/53/60/-2/0.00/742/82        28 ENE AERO 28 MPH ENE RMY 29
6/2  63/52/58/-4/0.80/000/00        39 SE  AERO 39 MPH SE  RMY 40
6/3  62/50/56/-6/0.01/082/09        31 N   AERO 28 MPH N   RMY 29
6/4  50/47/49/-14/0.58/000/00       44 NNE AERO 43 MPH NNE RMY 43
6/5  54/47/51/-12/0.23/009/01       23 NNE AERO 18 MPH NNE RMY N/A
6/6  63/48/56/-7/0.01/310/34        16 ENE AERO 14 MPH ENE RMY 15
6/7  70/50/60/-4/0.27/328/36        31 NE  AERO 31 MPH NE  RMY 32 TSTM,1/8" HAIL
6/8  76/51/64/0/0.03/502/55         25 WSW AERO 25 MPH WNW RMY 26 TSTM
6/9  76/56/66/+2/T/822/90           25 WNW AERO 24 MPH WNW RMY 24
6/10 78/56/67/+2/0.00/868/95        21 E   AERO 18 MPH E   RMY 18
6/11 76/55/66/+1/0.00/521/57        23 S   AERO 21 MPH S   RMY 22
6/12 73/57/65/0/0.03/320/35         29 S   AERO 29 MPH S   RMY 30
6/13 63/60/62/-3/0.59/000/00        25 S   AERO 23 MPH S   RMY N/A
6/14 69/58/64/-2/0.00/624/68        32 NNE AERO 29 MPH NE  RMY 31
6/15 68/54/61/-5/0.00/890/97        28 ENE AERO 24 MPH ENE RMY 25
6/16 64/51/58/-8/T/485/53           28 NE  AERO 24 MPH NE  RMY 27
6/17 67/50/59/-8/0.00/752/82        21 E   AERO 17 MPH E   RMY 19
6/18 68/50/59/-8/0.00/761/83        21 S   AERO 20 MPH S   RMY 20
6/19 73/53/63/-4/0.00/284/31        24 SW  AERO 23 MPH SW  RMY 24 
6/20 93/62/78/+10/0.00/844/92       22 SW  AERO 22 MPH SW  RMY N/A
6/21 94/74/84/+16/0.00/872/95       22 NW  AERO 22 MPH NW  RMY 21
6/22 93/69/81/+13/..../633/69       42 W   AERO 39 MPH W   RMY 43 TSTM
6/23 85/61/71/+5/..../504/55        48 NNW AERO 50 MPH NNW RMY 46 TSTM  
6/24 82/59/71/+2/0.00/715/78        22 NW  AERO 21 MPH NW  RMY 21
6/25 71/59/65/-4/1.38/.../..        32 S   AERO 32 MPH S   RMY 32 TSTM
6/26 71/56/64/-5/T/.../..           35 NW  AERO 36 MPH NW  RMY 36
 
6/27 our morning low temp: 55F; the normal low is now 60F
 
DAILY RECORDS FOR JUNE 2012
6/4 - NEW DAILY RECORD LOW MAXIMUM TEMP OF 50F;
surpasses the previous record of 51F in 1891.
6/21 - NEW DAILY RECORD HIGH MAXIMUM TEMP OF 94F;
surpasses the previous record of 92F in 1949.
6/21 - TIED DAILY RECORD HIGH MINIMUM TEMP OF 74F;
ties the current record of 74F in 1923.
6/22 - TIED DAILY RECORD HIGH MAXIMUM TEMP OF 93F;
ties the current record of 93F in 1921.
6/22 - TIED DAILY RECORD HIGH MINIMUM TEMP OF 69F;
ties the current record of 69F in 1892.
6/25 - NEW DAILY RECORD MAXIMUM PRECIPITATION OF 1.38 INS;
surpasses the previous record of 1.10 ins. in 2006.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JUNE 27
HIGH 93F IN 1999, 2007
LOW 46F IN 1897
PRECIP 1.72 INS IN 1938
PEAK GUST 55e N IN 1945
 
RECORDS FOR JUNE 28
HIGH 95F IN 1991
LOW 47F IN 1970
PRECIP 2.09 INS IN 1938
PEAK GUST 52 MPH WSW IN 1993
 
TODAY'S REPORT PREPARED BY: Robert Skilling/Jonathon O'Brien