BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, JUNE 5, 2007   
ALL TIMES ARE IN EASTERN STANDARD TIME
 
FINAL RAINFALL EVENT TOTAL 1.67 INCHES
 
The rain that began late in the evening of June 3rd continued 
yesterday, and a downpour produced almost an inch of rainfall 
early in the afternoon during a two-hour period.  The rain and 
drizzle ended last evening but a lingering shower or drizzle 
left the final 0.01 early this morning bringing the final total
to 1.67 inches.
 
We can observe the cumulonimbus tops from severe thunderstorms
occurring well to our northwest early this afternoon. 
 
Today's observations:
 
7 A.M.   
Weather: Obscurement with heavy fog 
Temperature: 63F, Dew point: 63F, Wind: S at 11 kts 
Sea-level pressure: 29.52 inches Hg, inches  
Visibility: zero    
6-hour min temp. 57F   
24-hour precip: 1.11 ins.  
BHO SA 1155 W1 X 0F 997/63/63/1911/952/ 8//// 
51009 ASOS 60001 MANUAL 6001/ ASOS 70115 MANUAL 
70111 10063 20057 
   
10 A.M. 
Weather: Scattered high clouds 
Temperature: 73F, Dew point: 66F, Wind: S at 07 kts
Wind: Direction variable SE-SSW
Sea-level pressure: 29.53 inches Hg, steady
Visibility: 9 miles, hazy   
BHO SA 1455 220 SCT 250 SCT 9 999/73/66/1807/953/ 
DENSE CI E-S HAZY WND 14V20/ 8/002 51002
 
1 P.M. 
Weather: Scattered clouds  
Temperature: 77F, Dew point: 64F, Wind: S at 18G27 kts
Wind: Peak wind S @ 33 kts at 28 past the hour
Sea-level pressure: 29.49 inches Hg, falling
Visibility: 10 miles, hazy  
6-hour max. temp. 78 deg. 
BHO SA 1755 150 SCT 200 SCT 10 985/77/64/1818G27/949/ CB DSNT NNW MOVG NE
CB TOPS NW-N AND DSNT ENE FEW ACSL S-NW TCU DSNT NW FEW CUFRA/CU ALQDS
HAZY PK WND 1733/28/ WND 15V21/ 8/943 10078 20063 
 
WEATHER SUMMARY FOR MONDAY, JUNE 4 
 
TEMPERATURE (DEGREES F)
MAX.....63    NORMAL.....73 
MIN.....50    NORMAL.....53
MEAN....57    NORMAL.....63
DEPARTURE FROM 30-YEAR NORMAL..........- 6
TOTAL DEPARTURE FOR THE MONTH..........+15 (+3.6 DEGREES/DAY)
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............8  DEPARTURE.........+4
TOTAL HEATING UNITS FOR THE MONTH...........14  DEPARTURE.........-4  
TOTAL HEATING UNITS FOR THE SEASON........5845  DEPARTURE.......-470
TOTAL HEATING UNITS LAST SEASON TO DATE...5739  DIFFERENCE......+106 
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............35  ENE AT 5:43 A.M.  
                   AEROVANE.............32  ENE AT 5:43 A.M.   
                   ASOS.................33  ENE AT 5:43 A.M.   
                   DAVIS................33  ENE AT 5:42 A.M.  
FASTEST MILE FOR YESTERDAY..............24  E   AT 7:36 A.M.   
MAXIMUM 2-MINUTE ASOS AVERAGE...........23  E   AT 7:36 A.M.       
MAXIMUM 2-MINUTE DAVIS AVERAGE..........25  ENE AT 7:36 A.M.  
AVERAGE WIND SPEED AND DIRECTION.......15.0 ENE   
                   ASOS................14.0   
                   DAVIS...............14.6 NE [050 deg]
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....1.11  DEPARTURE.....+0.98
                         ASOS..............1.15  
TOTAL PRECIPITATION FOR THE MONTH..........1.81  DEPARTURE.....+1.29 
                         ASOS..............1.83    
TOTAL PRECIPITATION FOR THE YEAR..........25.97  DEPARTURE.....+3.71
                         ASOS.............25.47    
 
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/.../..       45 NNW  Aero 44 MPH  TSTM AM/PM
6/2  87/64/76/+14/0.01/.../..       23 SSE  TSTM PM    
6/3  68/50/59/-3/0.14/000/00        24 NNE  TSTM AM (no rain)
6/4  63/50/57/-6/1.52/000/00        35 ENE  TSTM 10:15-10:50 A.M.
 
6/5  morning low temp. 57 deg; normal now 53 deg. 
     morning rainfall midnight to 7 a.m. is 0.01 in. 
 
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 5
HIGH 95F IN 1930
LOW 41F IN 1891
PRECIP 2.83 INS IN 1982
PEAK GUST 57 MPH NNW IN 1988
 
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
 
TODAY'S REPORT PREPARED By: Robert Skilling