BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, SEPTEMBER 28, 2007    
ALL TIMES ARE IN EASTERN STANDARD TIME
 
NEW RECORD HIGH MINIMUM TEMPERATURE OF 65 DEGREES YESTERDAY
SURPASSED PREVIOUS RECORD OF 63 DEGREES SET IN 1930
Yesterday's minimum temperature of 65 degrees set a new 
record for the highest minimum temperature the date, 
surpassing the previous record of 63 degrees set in 1930.  
The high temperature yesterday was only 83 degrees, which 
fell one degree short of tying the record for the date of 
84 degrees set in 1998.  
 
Today's observations:
 
7 A.M.   
Weather: Overcast stratus, thin spots in overcast 
Temperature: 67F, Dew point: 66F, Wind: SW at 8 kts 
Sea-level pressure: 29.76 inches Hg, rising
Visibility: 9 miles, thin fog
6-hour min temp: 65F
6-hour rainfall: 0.01 inches
24-hour rainfall: 0.03 inches
BHO SA 1155 E8 OVC 9 078/67/66/2308/976/ THN SPTS IOVC 
SUN OCNLY VSBL THN F ALQDS/ 8/6// 53001 MANUAL 6001/ 
MANUAL 70003 ASOS 70001 10068 20065
 
10 A.M.   
Weather: Overcast with breaks 
Temperature: 72F, Dew point: 63F, Wind: W at 13G20 kts
Sea-level pressure: 29.79 inches Hg, rising
Visibility: 18 miles, hazy
BHO SA 1455 15 SCT 80 SCT E90 OVC 18 088/72/63/2713G20/979/ 
FEW LWR STRA BRKS IOVC HAZY/ 8/57/ 50010
 
1 P.M.   
Weather: Scattered clouds
Temperature: 77F, Dew point: 58F, Wind: W at 11G19 kts
Wind: Variability SSW-NNW 
Sea-level pressure: 29.80 inches Hg, rising
Visibility: 55 miles   
6-hour max. temp. 77F
BHO SA 1755 35 SCT 100 SCT 250 –SCT 55 090/77/58/2811G19/980/ 
WND 21V33/ 8/531 51002 10077 20067


WEATHER SUMMARY FOR THURSDAY, SEPTEMBER 27
 
TEMPERATURE (DEGREES F)
MAX.....83    NORMAL.....67 
MIN.....65    NORMAL.....49
MEAN....74    NORMAL.....58
DEPARTURE FROM 30-YEAR NORMAL........+16 
TOTAL DEPARTURE FOR THE MONTH.......+100  [+3.5 DEGREES/DAY]
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..............30 SSW AT  2:46 P.M.    
                   AEROVANE...............24 SSW AT  2:46 P.M.     
                   ASOS...................30 SSW AT  2:46 P.M.  
                   DAVIS..................31 S   AT  2:45 P.M. 
FASTEST MILE FOR YESTERDAY................23 S   AT  2:21 P.M.      
MAXIMUM 2-MINUTE ASOS AVERAGE.............23 SSW AT  2:22 P.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE............20 SSE AT  6:19 P.M.     
AVERAGE WIND SPEED AND DIRECTION..........13.1 S  
                   ASOS...................12.4  
                   DAVIS..................11.8 S [172 deg]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.03  DEPARTURE.....-0.11
                         ASOS..............0.01 
TOTAL PRECIPITATION FOR THE MONTH..........1.89  DEPARTURE.....-1.82  
                         ASOS..............1.89    
TOTAL PRECIPITATION FOR THE YEAR..........32.88  DEPARTURE.....-4.30
                         ASOS.............32.12    
 
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/+9/0/653/89     20 N
9/22 79/60/70/+10/0/417/57    27 S
9/23 77/59/68/+8/0/713/98     25 WNW
9/24 80/55/68/+9/0/703/97     24 WNW 
9/25 86/57/72/+13/0/701/97    27 SSW
9/26 91/67/79/+20/0/641/89    32 S    Aero 27 MPH S
9/27 83/65/74/+16/0/.../..    30 SSW  Aero 24 MPH SSW
 
9/28 morning low temp. of 65F; normal low is now 49F
 
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.
9/26 - RECORD HIGH TEMPERATURE 91; PREVIOUS 87 IN 1958.
     - EQUALED HIGH MINIMUM TEMPERATURE OF 67; ALSO IN 1920. 
     - LATEST 90-DEG. TEMPERATURES; PREVIOUS RECORD WAS 
       93 DEG. ON SEPT. 23, 1895 AND 1914. 
9/27 - RECORD HIGH MINIMUM TEMPERATURE OF 65; PREVIOUS 63 IN 1930.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR SEPTEMBER 28
HIGH 82F IN 1959
LOW 33F IN 1897,1947
PRECIP 1.53 INCHES IN 1956
PEAK GUST 69 MPH NE IN 1962
 
RECORDS FOR SEPTEMBER 29
HIGH 85F IN 1952
LOW 28F IN 1914 (SEPTEMBER MINIMUM RECORD)
PRECIP 2.61 INCHES IN 1907
PEAK GUST 62 MPH S IN 2005
 
TODAY'S REPORT PREPARED By: Stephanie Radner