BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, JUNE 6, 2012
ALL TIMES ARE IN EASTERN STANDARD TIME
 
FINAL RAINFALL TOTAL JUNE 2-5 IS 1.62 INS.
CLOUDS HAVE CLEARED AWAY TODAY WITH RISING TEMPS.
 
June's rainfall of 1.62 inches is now about 0.80 inch
above normal for the first  5 days of the month.
After two very cool days averaging 12 and 14 degrees
below normal temperatures are on the rise today with
bright sunshine.  Highs of 50 and 54 degrees during
the past two days were close to 20 degrees below
normal but now we look forward to more normal June
weather without the clouds and very cool temperatures. 
 
Today's observations:
 
7 A.M.
Weather: Overcast altocumulus, few stratus NW-NE, few small cumulus and
cumulus fractus forming distant E-SE
Temperature: 53F, Dew Point: 51F; Wind: NNE at 5 kts,
Wind: Direction gradually veering over the past hour
Sea-level pressure: 29.99 inches Hg, rising then more rapidly
Visibility: 12 miles
24-hour precip: 0.08 inch
6-hour min. temp: 48F
BHO SA 1155 E75 OVC 12 154/53/51/0205/999/ FEW STRA NW-NE
STFRA DRFTG BLO SMT SSW-NW-NE FEW SML CUFRA/CU FRMG DSNT E-SE
NMRS SML BINOVC LGE BINOVC SE-S VSBY WNW 55 ABV INVSN
VSBY SE-S 25 THN F ALQDS WND LGT GRDLY VEERING/
8/63/ 53008 MANUAL 70008 ASOS 70008 10053 20048
 
10 A.M.
Weather: Scattered cumulonimbus, broken cumulus, moderate cumulus,
overcast altocumulus/lenticularis, small cumulonimbi NNE-SSE
moving SSE, break in overcast S-W, rain shower began at 8:55 A.M.,
ended at 9:35 A.M. 
Temperature: 55F, Dew Point: 52F; Wind: ENE 5 kts,
Wind: Light and variable
Sea-level pressure: 30.01 inches Hg, rising then more slowly
Visibility: 35 miles, NNE-NE 10 miles, southeast 25  miles,
west-northwest 50 miles
3-hour precip: 0.01 inch
BHO SA 1455 E12 BKN 85 OVC 35 163/55/52/0605/001/
SML CBS/SHRA NNE-E-SSE MOVG SSE MDT CU ALQDS BINOVC S-W
VSBY NNE-NE 10 SE 25 VSBY WNW 50/ RB1355E35/36/
51009 ASOS 60001 MANUAL 6001/
 
1 P.M.
Weather: Scattered cumulus, moderate cumulus, cumulus forming
except NE-E, altocumulus, altocumulus lenticularis all quadrants   
Temperature: 62F, Dew Point: 50F; Wind: ENE at 7 kts,
Wind: Direction variable N-E
Sea-level pressure: 29.98 inches Hg, falling then more rapidly 
Visibility: 50 miles, SW-NW 35 miles, virga distant SSW-NNW
6-hour precip: 0.01 inch
6-hour max. temp: 63F
BHO SA 1755 50 SCT 65 SCT 50 153/62/50/0607/998/ CU/MDT CU FRMG
XCPT NE-E AC/ACSL ALQDS FEW VC STN VSBY SW-NW 35 VIRGA DSNT SSW-NNW
WND 01V08/ 8/240 58010 10063 20053
 
WEATHER SUMMARY FOR TUESDAY, JUNE 5
 
TEMPERATURE (DEGREES F)
MAX.....54    NORMAL.....72
MIN.....47    NORMAL.....54
MEAN....51    NORMAL.....63
 
DEPARTURE FROM 30-YEAR NORMAL......................-12
TOTAL DEPARTURE FOR THE MONTH......................-38 [-7.8 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY..............14   DEPARTURE.........+10
TOTAL HEATING UNITS FOR THE MONTH..............51   DEPARTURE.........+29
TOTAL HEATING UNITS FOR THE SEASON...........4939   DEPARTURE.......-1380
TOTAL HEATING UNITS LAST SEASON TO DATE......6179   DIFFERENCE......-1240
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.............23 NNE AT  1:34 A.M. 
                   AERO..................18 NNE AT  1:34 A.M.
                   ASOS..................20  NE AT  1:35 A.M. 
                   DAVIS.................20 NNE AT  1:35 A.M. RMY N/A
THE FASTEST MILE FOR YESTERDAY...........12 NNE AT  1:33 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE............14 NE  AT  1:35 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE...........13 NNE AT  1:35 A.M.
AVERAGE WIND SPEED AND DIRECTION........6.9 NNE
                   ASOS.................6.0
                   DAVIS................6.3 NNE [020 deg.]
 .
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.08  DEPARTURE...........-0.09
                         ASOS..............0.08
TOTAL PRECIPITATION FOR THE MONTH..........1.62  DEPARTURE...........+0.79
                         ASOS..............1.59
TOTAL PRECIPITATION FOR THE YEAR..........14.86  DEPARTURE...........-8.63
                         ASOS.............14.84
 
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/.../..        28 ENE AERO 28 MPH ENE RMY 29
6/2  63/52/58/-4/0.80/.../..        39 SE  AERO 39 MPH SE  RMY 40
6/3  62/50/56/-6/0.01/.../..        31 N   AERO 28 MPH N   RMY 29
6/4  50/47/49/-14/..../000/00       44 NNE AERO 43 MPH NNE RMY 43
6/5  54/47/51/-12/..../.../..       23 NNE AERO 18 MPH NNE RMY N/A
 
6/6  morning low temp: 48F; the normal low is now 54F
 
DAILY RECORDS FOR JUNE 2012
6/4 - NEW DAILY RECORD LOW MAXIMUM TEMP OF 50F;
surpasses the previous record of 51F in 1891.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JUNE 6
HIGH 95F IN 1925
LOW 42F IN 1885, 1894, 1920, 1945
PRECIP 3.61 INS IN 2000
PEAK GUST 58 MPH NE IN 2000
 
RECORDS FOR JUNE 7
HIGH 93F IN 1999
LOW 40F IN 1932
PRECIP 4.01 INS IN 2006
PEAK GUST 58 MPH NE IN 1982
 
TODAY'S REPORT PREPARED BY: Robert Skilling/Michael Leber