BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, OCTOBER 4, 2007    
ALL TIMES ARE IN EASTERN STANDARD TIME
 
AS OF 2 PM TEMP. 82 DEG. IS ONLY ONE AWAY FROM RECORD 
UNSEASONABLY WARM TEMPERATURES WILL APPROACH OR EXCEED RECORDS 
MODERATE DROUGHT CONTINUES AND RAINFALL DEFICITS INCREASE
 
Our morning low temperature of 65 degrees will be equaling the 
record high minimum for 4 October set in 1920 if it holds through
midnight.  In additional several of the following records below 
may be challenged over the next several days.
 
October 4....record high max. temp. 83F in 1959 & 1998
October 5....record high max. temp. 85F in 1922
             record high min. temp. 62F in 1910
October 6....record high max. temp. 83F in 1990
             record high min. temp. 65F in 1932
 
The highest temperature this late in the year is 88F 10/7/1963.  
There has been only 0.36 inch of rainfall in the past three weeks 
since September 11th. The year is now more than 5 inches drier 
than normal. 
 
Today's observations:
 
7 A.M.   
Weather: Overcast altocumulus, higher clouds visible distant ESE-SSW   
Temperature: 65F, Dew point: 64F, Wind: SW at 08 kts
Sea-level pressure: 30.17 inches Hg, rising
Visibility: 9 miles, thin fog  
6-hour min temp: 65F
BHO SA 1155 E70 OVC 9 218/65/64/2308/017/ HIER AC/CI CLOUDS VSBL DSNT ESE-SSW 
THN FG ALQDS/ 8/071 53014 10065 20065 
 
10 A.M.   
Weather: Broken altocumulus clouds 
Temperature: 66F, Dew point: 63F, Wind: SW at 06 kts
Sea-level pressure: 30.20 inches Hg, falling
Visibility: 10 miles, hazy  
BHO SA 1455 E100 BKN 10 228/71/65/2306/020/ CLRG NW-N HAZY/ 8/030 50010
 
1 P.M.     
Weather: Scattered cumulus, few moderate 
Temperature: 82F, Dew point: 62F, Wind: SW at 11 kts
Wind: Variability S-W
Sea-level pressure: 30.16 inches Hg, falling
Visibility: 20 miles, hazy
6-hour max. temp.: 82F 
BHO SA 1755 38 SCT 20 214/82/62/2311/016/ FEW MDT CU HAZY WND 17V26/ 
8/200 57014 10082 20065
 
WEATHER SUMMARY FOR WEDNESDAY, OCTOBER 03 
 
TEMPERATURE (DEGREES F)
MAX.....73    NORMAL.....65 
MIN.....61    NORMAL.....47
MEAN....67    NORMAL.....56
DEPARTURE FROM 30-YEAR NORMAL.........+11 
TOTAL DEPARTURE FOR THE MONTH.........+17[+5.4 DEGREES/DAY]  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..............23 SSE AT  4:24 P.M. *     
                   AEROVANE.............. 22 SSE AT  4:24 P.M. *     
                   ASOS...................23 SSE AT  4:20 P.M.    
                   DAVIS..................25 SSW AT 10:29 P.M.     
FASTEST MILE FOR YESTERDAY................16 SSE AT  4:18 P.M.         
MAXIMUM 2-MINUTE ASOS AVERAGE.............17 SSE AT  4:21 P.M.       
MAXIMUM 2-MINUTE DAVIS AVERAGE............18 SSW AT 10:34 P.M.     
AVERAGE WIND SPEED AND DIRECTION.......... 6.8 SSE  
                   ASOS................... 6.9   
                   DAVIS.................. 5.9 S [170 deg] 
 

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..........0.00  DEPARTURE.....-0.42  
                         ASOS..............0.00    
TOTAL PRECIPITATION FOR THE YEAR..........32.88  DEPARTURE.....-5.14
                         ASOS.............32.12    
 
PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 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
 
10/1 67/49/58/+1/0/592/84     18 S 
10/2 72/50/61/+5/0/.../..     20 SSE
10/3 73/61/67/+11/0/.../..    23 SSE
 
10/4 morning low temperature 65F; normal low now 47F. 
 
NEW DAILY RECORDS FOR OCTOBER 2007:
None to date   
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR OCTOBER 4
HIGH 83F IN 1998, 1959
LOW 28F IN 1888
PRECIP 1.07 INCHES IN 1986
PEAK GUST 59 MPH SSW IN 1990
 
RECORDS FOR OCTOBER 5
HIGH 85F IN 1922
LOW 29F IN 1965
PRECIP 3.17 INCHES IN 1962
PEAK GUST 64e MPH S IN 1979
 
TODAY'S REPORT PREPARED By: Robert Skilling