BLUE HILL METEOROLOGICAL OBSERVATORY 
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JUNE 6, 2011
ALL TIMES ARE IN EASTERN STANDARD TIME
 
AN IDEAL EARLY JUNE WITH COMPLETE SUNSHINE
AND CONTINUED COMFORTABLE HUMIDITY
TEMPERATURES RETURNING CLOSE TO NORMAL
 
A clear, sunny comfortably warn  day today
follows cool but dry weather over the weekend.
Temperatures are returning close to normal
after running up to 5 to 8 degrees on the
cool side on both weekend days. Temperatures had
climbed to the mid-70' by early afternoon.  
 
Today's observations:
 
7 A.M.  
Weather: Clear, few altocumulus distant SW-NNW,
few cirrus distant ENE-SSE 
Temperature: 62F, Dew point: 54; Wind: N at 3 kts
Sea-level pressure: 30.01 inches Hg, falling
Visibility: 35 miles, 45 miles WNW, light distant haze,
thin smoke layer along horizon S-SSW
6-hour min. temp: 54F
BHO SA 1155 CLR 35 161/62/54/3205/001/ FEW AC DSNT SW-NNW FEW CI
DSNT ENE-SSE THN K LYR ALG HRZN S-SW VSBY WNW 45 HAZY/ 8/031
50004 10062 20054
 
10 A.M.
Weather: Clear, cumulus and few moderate cumulus forming
except overhead thru northeast thru southeast, few thin
cirrus SW-NW
Temperature: 71F, Dew point: 53F; Wind: NNE at 8 kts,
Wind: Direction variable N-ENE
Sea-level pressure: 30.03 inches Hg, rising
Visibility: 45 miles, light distant haze   
BHO SA 1455 CLR 45 168/71/53/0308/003/ CU FRMG/FEW MDT XCPT
OVHD-NE-SE FEW THN CI SW-NW LGT DSNT HZ WND 35V07/ 8/201 51007
 
1 P.M.
Weather: Scattered cumulus, few moderate cumulus and
stratocumulus (all SSE-W-N), thin scattered cirrus 
Temperature: 72F, Dew point: 51F; Wind: NE at 9 kts,
Wind: Direction variable N-ENE 
Sea-level pressure: 30.01 inches Hg, falling
Visibility: 55 miles, light distant haze
Max. temp: 74F
BHO SA 1755 55 SCT 250 –SCT 55 162/72/51/0409/001/ CU/FEW MDT CU/
SC SSE-W-N LGT DSNT HZ WND 36V07/ 8/401 56006 10075 20062
 
WEATHER SUMMARY FOR SUNDAY, JUNE 5
 
TEMPERATURE (DEGREES F)
MAX.....70     NORMAL.....73  
MIN.....46     NORMAL.....53
MEAN....58     NORMAL.....63
 
DEPARTURE FROM 30-YEAR NORMAL...................-5
TOTAL DEPARTURE FOR THE MONTH...................-8 [-1.8 DEGREES/DAY]
 
HEATING DEGREE DAYS    
TOTAL HEATING UNITS FOR YESTERDAY............ 7    DEPARTURE........+26
TOTAL HEATING UNITS FOR THE MONTH............26    DEPARTURE.........+4
TOTAL HEATING UNITS FOR THE SEASON.........6179    DEPARTURE.......-140
TOTAL HEATING UNITS LAST SEASON TO DATE....5641    DIFFERENCE......+538
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..............20 N   AT  1:07 P.M. 
                   AEROVANE...............21 N   AT 10:08 A.M.
                   ASOS...................18 N   AT  1:10 P.M.
                   DAVIS..................18 NNE AT 11:53 A.M. 
THE FASTEST MILE FOR YESTERDAY............11 NNE AT  3:24 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE.............13 ENE AT 12:27 P.M. 
MAXIMUM 2-MINUTE DAVIS AVERAGE............13 N   AT  1:11 P.M. 
AVERAGE WIND SPEED AND DIRECTION.........6.6 ENE 
                   ASOS..................6.9    
                   DAVIS.................6.4 E [080 deg]
 
 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE........-0.13
                         ASOS..............0.00  
TOTAL PRECIPITATION FOR THE MONTH..........0.64  DEPARTURE........-0.01 
                         ASOS..............0.65
TOTAL PRECIPITATION FOR THE YEAR..........22.83  DEPARTURE........+0.44
                        ASOS..............23.47**
**ASOS data is in error due to system failure on 1/12-13   
 
PRELIMINARY CLIMATE SUMMARY FOR JUNE 2011 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
6/1  80/60/70/+8/0.64/.../..         39 S    AERO 44 MPH S   TSTM
6/2  72/52/62/0/0.00/.../..          50 WSW  AERO 54 MPH WSW
6/3  69/48/59/-3/0.00/.../..         36 W    AERO 39 MPH WNW
6/4  64/46/55/-8/0.00/.../..         27 NE  
6/5  70/46/58/-5/0.00/.../..         20 N
 
6/6  our morning low temp: 54F; the normal low is now 53F 
 
DAILY RECORDS FOR JUNE 2011
None so far...
 
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/Erin Abbott