BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, SEPTEMBER 9, 2007    
ALL TIMES ARE IN EASTERN STANDARD TIME
 

Today's observations:
 
7 A.M.   
Weather: Overcast   
Temperature: 69F, Dew point: 68F, Wind: NNE at 9 kt 
Sea-level pressure: 30.09 inches Hg, rising
Visibility: 1/2 of a mile 
6-hour min temp: 69F
24-hour rainfall: 0.16 inches
BHO SA 1155 E4 OVC 1/2F 189/69/68/0209/009/ 
8/4// 53011 6016/ 70016 10072 20069
 
10 A.M.   
Weather: Overcast
Temperature: 62F, Dew point: 60F, Wind: NE at 13 kt 
Sea-level pressure: 30.10 inches Hg, rising
Visibility: 4 miles  
BHO SA 1455 E15 OVC 4F 194/62/60/0513/010/ 8/4// 53005
 

WEATHER SUMMARY FOR SATURDAY, SEPTEMBER 8
 
TEMPERATURE (DEGREES F)
MAX.....93*   NORMAL.....73 
MIN.....67    NORMAL.....56
MEAN....80    NORMAL.....65
DEPARTURE FROM 30-YEAR NORMAL........+15
TOTAL DEPARTURE FOR THE MONTH........+35  [+4.2 DEGREES/DAY] 
* NEW DAILY RECORD MAXIMUM (91F in 1945)
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..............31 S AT 2:36 P.M.    
                   AEROVANE...............29 S AT 2:36 P.M.     
                   ASOS...................N/A  #
                   DAVIS..................34 S AT 2:35 P.M. 
FASTEST MILE FOR YESTERDAY............... 26 S AT 2:36 P.M.        
MAXIMUM 2-MINUTE ASOS AVERAGE.............N/A  # 
MAXIMUM 2-MINUTE DAVIS AVERAGE............27 S AT 3:57 P.M.  
AVERAGE WIND SPEED AND DIRECTION..........15.6 SSW  
                   ASOS...................N/A  #
                   DAVIS..................17.4 SSW [202 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....0.16  DEPARTURE.....+0.02
                         ASOS..............0.16 
TOTAL PRECIPITATION FOR THE MONTH..........0.16  DEPARTURE.....-0.90  
                         ASOS..............0.16    
TOTAL PRECIPITATION FOR THE YEAR..........31.15  DEPARTURE.....-3.38
                         ASOS.............30.39    
 
PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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
9/1  79/57/68/+1/0/790/100      
9/2  78/51/65/-1/0/787/100      
9/3  85/57/71/+5/0/760/97     31 SSW AERO 28 MPH SSW 
9/4  76/61/69/+3/0/641/82     28 NW  AERO 26 MPH NW
9/5  74/53/64/-1/0/732/94     21 ESE 
9/6  76/55/66/+1/0/.../..     31 S
9/7  92/62/77/+12/0/657/85    30 SSW
9/8  93/67/80/+15/0/.../..    31 S
 
NEW DAILY RECORDS FOR SEPTEMBER 2007: 
 
9/7 - RECORD HIGH TEMPERATURE 92; PREVIOUS 91 IN 1945.
9/8 - RECORD HIGH TEMPERATURE 93; PREVIOUS 91 IN 1945.
 

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR SEPTEMBER 9
HIGH 91F IN 2002
LOW 41F IN 1938
PRECIP 1.97 INCHES IN 1969
PEAK GUST 52 MPH WNW IN 1969, NW IN 1978
 
RECORDS FOR SEPTEMBER 10
HIGH 90F IN 1931,1989
LOW 41F IN 1956
PRECIP 5.60 INCHES IN 1999 (DAILY RECORD FOR SEPTEMBER)
PEAK GUST 48 MPH NW IN 1972
 
TODAY'S REPORT PREPARED By: Andrew Hoell