BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, JUNE 7, 2009   
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.  
Weather: Broken altocumulus, thin overcast cirrus
Temperature: 59F, Dew point: 56F, Wind: WSW at 10 kt
Sea-level pressure: 30.01 inches Hg, rising
Visibility: 60 miles
6-hour minimum temp: 57F
BHO SA 1155 150 BKN 250 –OVC 60 162/59/56/2410/001/
FEW BINOVC ALQDS VSBY NE-E 8 HAZY/ 8/051 51018 10059 20057
 
10 A.M.  
Weather: Scattered altocumulus; thin scattered cirrus
Temperature: 72F, Dew point: 42F, Wind: W at 10 kt
Sea-level pressure: 30.01 inches Hg, steady
Visibility: 65 miles
BHO SA 1455 180 BKN 250 –OVC 65 162/72/42/2710/001/
FEW BINOVC ALQDS/ 8/071 55000
 
1 P.M.  
Weather: Scattered altocumulus; thin overcast cirrus
Temperature: 77F, Dew point: 43F, Wind: W at 10G17 kt
Sea-level pressure: 29.97 inches Hg, falling
Visibility: 60 miles
BHO SA 1755 180 SCT 250 –OVC 60 150/77/43/2610G17/997/
FEW BINOVC ALQDS/ 8/021 58012 10077 20059
 
WEATHER SUMMARY FOR SATURDAY, JUNE 6
 
TEMPERATURE (DEGREES F)
MAX.....73    NORMAL.....73
MIN.....51    NORMAL.....53
MEAN....62    NORMAL.....63
 
DEPARTURE FROM 30-YEAR NORMAL...........-1
TOTAL DEPARTURE FOR THE MONTH..........-10 [-1.9 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY.............3  DEPARTURE.......-1
TOTAL HEATING UNITS FOR THE MONTH............25  DEPARTURE.......-1
TOTAL HEATING UNITS FOR THE SEASON.........6146  DEPARTURE.....-177
TOTAL HEATING UNITS LAST SEASON TO DATE....5928  DIFFERENCE....+218
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.............25 SSE AT 5:43 P.M.
                   AEROVANE..............23 SSE AT 5:41 P.M.
                   ASOS..................23 S   AT 5:43 P.M.
                   DAVIS.................22 S   AT 5:43 P.M.
FASTEST MILE FOR YESTERDAY...............20 SSE AT 5:42 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE............18 S   AT 7:42 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE...........17 S   AT 5:44 P.M.
AVERAGE WIND SPEED AND DIRECTION........8.7 SSE
                   ASOS.................8.7
                   DAVIS................7.8 SSW [197 DEG]
* Last of several occurrences
 
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  JUNE..............0.06  DEPARTURE....-0.72
                         ASOS..............0.05 
TOTAL PRECIPITATION FOR THE YEAR..........18.56  DEPARTURE....-3.96
                         ASOS.............19.60 
 
PRELIMINARY CLIMATE SUMMARY FOR JUNE 2009 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane recording wind system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
6/1  69/41/55/-7/0/706/78          29 SSW
6/2  76/53/65/+3/T/525/58          28 S
6/3  69/54/62/0/T/254/28           23 SSW    AERO 20 MPH SSW
6/4  73/53/63/0/0/.../..           22 SSE    AERO 20 MPH SSE
6/5  64/51/58/-5/0.06/.../..       21 NE
6/6  73/51/62/-1/0/.../..          25 SSE
 
NEW DAILY RECORDS FOR JUNE 2009 TO DATE...
None
 
DAILY EXTREMES
 
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
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
 
RECORDS FOR JUNE 8
HIGH 94F IN 1984
LOW 37F IN 1932
PRECIP 1.53 INS IN 1947
PEAK GUST 86e MPH WNW IN 1946 [Record for month]
 
TODAY'S REPORT PREPARED BY: Andrew Hoell