BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, JUNE 15, 2007   
ALL TIMES ARE IN EASTERN STANDARD TIME
 
LIGHT NORTHEAST WINDS CONTINUING TO PERSIST 
MORE ABUNDANT SUNSHINE IS STARTING TO TAME THE CHILL
YET ANOTHER COOL DAY YESTERDAY AVERAGED 11 DEGREES BELOW NORMAL
 
This morning brought more abundant sunshine than expected which
has helped to push the temperature into the mid-60's at midday.  
It feels warmer, but we are still well below normal for mid-June.
 
Eastern Massachusetts is still feeling the cooling effects of a light
onshore northeast breeze, but the persistent low pressure off of the 
coast is beginning to weaken and move out.  The weekend should bring
a gradual return to unsettled summery weather.  
 

Today's observations:
 
7 A.M.   
Weather: Distant stratus, small cumulus, altostratus
and cirrus uncinus overhead 
Temperature: 55F, Dew point: 46F, Wind: NW at 9G12 kts 
Wind: Variability NW-N
Sea-level pressure: 30.08 inches Hg, rising
Visibility: 20 miles    
6-hour min temp. 48F   
24-hour precip: 0
BHO SA 1155 250 SCT 20 196/55/46/3209G12/008/ 
LOW STRA DSNT SW-W-N SCT SML CU DSNT E-SE-S 
AS SW CLR N-NE SCT CI UNC OVHD WND 29V35/ 
8/001 53004 10054 20048 
    
10 A.M. 
Weather: Small cumulus,altostratus, and cirrus uncinus 
Temperature: 65F, Dew point: 51F, Wind: NNE at 12G15 kts 
Wind: Variability N-ENE  
Sea-level pressure: 30.11 inches Hg, falling
Visibility: 35 miles    
BHO SA 1455 30 SCT 250 SCT 35 194/65/51/0312G15/011/ 
SML CU SE-W-NNE SCT AS SW CI UNC ENE-SSE/ 8/111/ 58002
 
1 P.M. 
Weather: Small cumulus and cirrus uncinus 
Temperature: 65F, Dew point: 51F, Wind: NNE at 10G14 kts 
Sea-level pressure: 30.09 inches Hg, falling
Visibility: 40 miles  
BHO SA 1755 25 SCT 220 SCT 40 184/65/51/0310G14/009/ 
SCT SML CU SW-SW CI UNC ALQDS/ 8/101 58010 10068 20054 
 

WEATHER SUMMARY FOR THURSDAY, JUNE 14 
 
TEMPERATURE (DEGREES F)
MAX.....59    NORMAL.....75 
MIN.....49    NORMAL.....56
MEAN....54    NORMAL.....65
DEPARTURE FROM 30-YEAR NORMAL...........-11
TOTAL DEPARTURE FOR THE MONTH...........-15 (-1.3 DEGREES/DAY)
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY...........11  DEPARTURE.........+9
TOTAL HEATING UNITS FOR THE MONTH...........63  DEPARTURE.........+13  
TOTAL HEATING UNITS FOR THE SEASON........5894  DEPARTURE........-453
TOTAL HEATING UNITS LAST SEASON TO DATE...5790  DIFFERENCE.......+104 
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............35 NNE AT 11:26 A.M.    
                   AEROVANE.............34 NNE AT 11:25 A.M.      
                   ASOS.................N/A  #
                   DAVIS................33 NNE AT 11:26 A.M.     
FASTEST MILE FOR YESTERDAY..............21 NE  AT 11:40 A.M.   
MAXIMUM 2-MINUTE ASOS AVERAGE...........N/A  # 
MAXIMUM 2-MINUTE DAVIS AVERAGE..........22 NNE AT 11:42 A.M.      
AVERAGE WIND SPEED AND DIRECTION.......11.7 NE 
                   ASOS.................N/A  #
                   DAVIS...............11.6 NE [030 deg]  
# ASOS WINDS SWITCHED OFF BY NWS 6/6, IT IS NOT KNOWN WHEN 
THAT DATA WILL RESUME

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..........1.97  DEPARTURE.....+0.15 
                         ASOS..............1.97    
TOTAL PRECIPITATION FOR THE YEAR..........26.13  DEPARTURE.....+2.70
                         ASOS.............25.61   
 
PRELIMINARY CLIMATE SUMMARY FOR JUNE 2007......CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
 
AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available
 
6/1  87/56/72/+10/0.12/660/73       45 NNW  Aero 44 MPH TSTM AM/PM
6/2  87/64/76/+14/0.01/290/32       23 SSE  TSTM PM    
6/3  68/50/59/-3/0.14/000/000       24 NNE  TSTM AM (no rain)
6/4  63/50/57/-6/1.52/000/00        35 NE   TSTM 10:15-10:50 A.M. 
6/5  78/57/68/+5/0.01/455/50        38 S   
6/6  70/49/60/-3/0/637/70           35 W   
6/7  69/44/57/-7/0/528/58           23 W
6/8  78/58/68/+4/0/748/82           20 WSW
6/9  63/54/59/-5/0.02/000/00        18 ENE
6/10 70/50/60/-4/0/831/91           22 ENE 
6/11 77/62/70/+5/0.04/594/65        29 NE    
6/12 70/56/63/-2/0.09/192/21        29 NNE
6/13 56/50/53/-12/0.01/000/00       42 NNE   Aero 40 MPH NNE 
6/14 59/49/54/-11/0/036/04          34 NNE  
 
6/15  morning low temp. 46 deg; normal 56 deg. 
      no precipitation     
 
      NEW DAILY RECORDS FOR JUNE: 
 
6/4 - NEW RECORD DAILY RAINFALL OF 1.52 INS; THE PREVIOUS 
      RECORD WAS 1.29 INS. IN 1898.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
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
 
RECORDS FOR JUNE 16
HIGH 92F IN 1891, 1967
LOW 44F IN 1926
PRECIP 2.17 INS IN 1931
PEAK GUST 55 MPH W IN 1958

TODAY'S REPORT PREPARED By: Nate Magee/Eli Melaas