BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, SEPTEMBER 23, 2007    
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.   
Weather: Clear 
Temperature: 61F, Dew point: 49F, Wind: WNW at 11 kt 
Sea-level pressure: 30.09 inches Hg, rising
Visibility: 65 miles   
6-hour min temp: 59F
24-hour rainfall: 0. inches
BHO SA 1155 CLR 65 189/61/49/3011/009/ 
FEW CI DSNT E-S THN K LYR ALNG HRZN W-NW/ 
8/001 51021 10068 20059
 
10 A.M.   
Weather: Clear
Temperature: 69F, Dew point: 46F, Wind: NW at 12 kt
Sea-level pressure: 30.12 inches Hg, rising
Visibility: 70 miles
BHO SA 1455 CLR 70 196/69/46/3112/012/ 8/000 51007 
 
  
WEATHER SUMMARY FOR SATURDAY, SEPTEMBER 22
 
TEMPERATURE (DEGREES F)
MAX.....79    NORMAL.....69 
MIN.....60    NORMAL.....51
MEAN....70    NORMAL.....60
DEPARTURE FROM 30-YEAR NORMAL........+10 
TOTAL DEPARTURE FOR THE MONTH........+34  [+1.3 DEGREES/DAY]
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..............27 S   AT 3:57 P.M.  
                   AEROVANE...............21 S   AT 3:57 P.M.   
                   ASOS...................25 S   AT 4:31 P.M.
                   DAVIS..................N/A 
FASTEST MILE FOR YESTERDAY................21 S   AT 5:16 P.M.     
MAXIMUM 2-MINUTE ASOS AVERAGE.............21 SSW AT 5:18 P.M. 
MAXIMUM 2-MINUTE DAVIS AVERAGE............N/A   
AVERAGE WIND SPEED AND DIRECTION..........11.5 SSW 
                   ASOS...................11.8 
                   DAVIS..................N/A
 
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE.....-0.14
                         ASOS..............0.00 
TOTAL PRECIPITATION FOR THE MONTH..........1.86  DEPARTURE.....-1.15  
                         ASOS..............1.88    
TOTAL PRECIPITATION FOR THE YEAR..........32.85  DEPARTURE.....-3.64
                         ASOS.............32.11    
 
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    25 WNW   
9/2  78/51/65/-1/0/787/100    22 S   
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/+1/0/380/49     31 S
9/7  92/62/77/+12/0/680/88    30 SSW
9/8  93/67/80/+15/0/686/89    31 S    TSTM 
9/9  72/57/65/+1/0.16/000/00  28 NNE  TSTM 
9/10 66/57/62/-2/0.03/000/00  18 NNE
9/11 68/58/63/-1/1.34/000/00  30 WNW  
9/12 73/55/64/+1/0/752/99     35 W    Aero 33 MPH W
9/13 73/52/63/0/0/741/98      23 ESE  
9/14 76/56/66/+3/0/587/78     26 SSE
9/15 63/49/56/-6/0.33/225/30  36 WNW  
9/16 65/45/55/-7/0/606/81     20 WNW  
9/17 63/46/55/-7/0/738/99     20 NE  
9/18 64/46/55/-6/0/720/97     22 NE    
9/19 69/48/59/-2/0/414/56     18 S 
9/20 81/53/67/+6/0/597/81     18 SSW
9/21 77/60/69/+9/0/661/90     20 N
9/22 79/60/70/+10/0/.../..    27 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 23
HIGH 93F IN 1895,1914
LOW 33F IN 1904
PRECIP 2.67 INCHES IN 1994
PEAK GUST 62 MPH SSW IN 1989
 
RECORDS FOR SEPTEMBER 24
HIGH 87F IN 1959
LOW 33F IN 1885,1950,1963
PRECIP 1.19 INCHES IN 1955
PEAK GUST 54e MPH SW IN 1940
 
TODAY'S REPORT PREPARED By: Andy Hoell