BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, JUNE 14, 2009   
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.  
Weather: Obscured by rain and fog
Temperature: 55F, Dew point: 55F, Wind: WSW at 10 kt
Sea-level pressure: 30.02 inches Hg, rising
Visibility: 1/16 of a mile
6-hour minimum temp: 55F
24-hour rainfall: 0.20 inch
BHO SA 1155 W2 X1 1/16RF 165/55/55/2510/002/
8//// 53017 6020/ 70020 10059 20055
 
10 A.M.  
Weather: Overcast with a few breaks
Temperature: 59F, Dew point: 56F, Wind: E at 5 kt
Sea-level pressure: 30.02 inches Hg, steady
Visibility: 15 miles
BHO SA 1455 10 OVC 15 166/59/56/0905/002/
WND LGT FEW BINOVC ALQDS HIER CLDS VSBL/ 8/72/ 53001 6014/
 
1 P.M.  
Weather: Overcast altocumulus
Temperature: 62F, Dew point: 56F, Wind: ENE at 11 kt
Sea-level pressure: 30.01 inches Hg, steady
Visibility: 15 miles
6-hour precipitation
BHO SA 1755 15 OVC 15 164/62/56/0611/001/
HIER CLDS VSBL/ 8/6// 58002 6014/ 10062 20055
 
 
WEATHER SUMMARY FOR SATURDAY, JUNE 13
 
TEMPERATURE (DEGREES F)
MAX.....75    NORMAL.....75
MIN.....59    NORMAL.....55
MEAN....67    NORMAL.....65
 
DEPARTURE FROM 30-YEAR NORMAL...........+2
TOTAL DEPARTURE FOR THE MONTH..........-33 [-2.7 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY.............0  DEPARTURE.......-3
TOTAL HEATING UNITS FOR THE MONTH............57  DEPARTURE.......+9
TOTAL HEATING UNITS FOR THE SEASON.........6178  DEPARTURE.....-167
TOTAL HEATING UNITS LAST SEASON TO DATE....5928  DIFFERENCE....+250
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.............23 NNE AT 6:18 A.M. *  
                   AEROVANE..............20 NNE AT 6:18 A.M. 
                   ASOS..................21 NE  AT 6:19 A.M.   
                   DAVIS.................20 N   AT 6:05 A.M.     
FASTEST MILE FOR YESTERDAY...............16 S   AT 8:43 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE............16 SSW AT 8:10 P.M.    
MAXIMUM 2-MINUTE DAVIS AVERAGE...........15 S   AT 9:45 P.M.    
AVERAGE WIND SPEED AND DIRECTION........9.2 NNE 
                   ASOS.................9.2
                   DAVIS................9.1 NE [56 DEG]
* Last of several occurrences...
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.20  DEPARTURE....+0.07
                         ASOS..............0.16
TOTAL PRECIPITATION FOR  JUNE..............0.96  DEPARTURE....-0.73
                         ASOS..............0.90 
TOTAL PRECIPITATION FOR THE YEAR..........19.46  DEPARTURE....-3.97
                         ASOS.............20.45 
 
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 wind recording 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    AERO 25 MPH SSW
6/2  76/53/65/+3/T/525/58          28 S      AERO 24 MPH S
6/3  69/54/62/0/T/254/28           23 SSW    
6/4  73/53/63/0/0/327/36           22 SSE    
6/5  64/51/58/-5/0.05/000/00       21 NE
6/6  73/51/62/-1/0.01/428/47       25 SSE
6/7  79/56/68/+4/0/583/64          28 W      AERO 24 MPH W
6/8  73/57/65/+1/0/529/58          18 ENE
6/9  59/51/55/-9/0.10/000/00       27 E
6/10 59/52/56/-8/.../000/00        21 NE     AERO 18 MPH NE
6/11 57/52/55/-10/.../000/00       23 NNE    AERO 21 MPH NE
6/12 70/53/62/-3/.../.../..        30 SSE    AERO 29 MPH SSE
6/13 75/59/67/+2/0/.../..          23 NNE
 
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 14
HIGH 93F IN 1956
LOW 41F IN 1912
PRECIP 1.49 INS 1896
PEAK GUST 55 MPH WNW IN 1958
 
RECORDS FOR JUNE 15
HIGH 94F IN 1988
LOW 42F IN 1959, 1978
PRECIP 2.04 INS IN 1903
PEAK GUST 52 MPH SW IN 1972
 
TODAY'S REPORT PREPARED BY: Andrew Hoell