BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, OCTOBER 29, 2007 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
FIRST FREEZE OF THE SEASON--30 DEGREES THIS MORNING
CHILLY AIRMASS ARRIVED YESTERDAY ON GUSTY WNW WINDS
RAINFALL DEFICIT FOR OCTOBER CONTINUES TO INCREASE
 
The first freeze (29.7 degrees) of the season was 9 days 
beyond the average date.  A general freeze occurred
throughout the area and Norwood Airport reported a very 
frosty 20 degrees while Taunton was 27 degrees. Right along the
coast low temperatures remained a few degrees above freezing 
and Boston's Logan Airport had a minimum of 37 degrees. 
 
The coldest airmass of the season began arriving yesterday 
on gusty west-northwest winds. Peak wind gusts reached 42 
MPH as dewpoints were dropping through the 20's. Yesterday
was the first day to average colder than normal since Oct-
ober 15th if only by 2 degrees. The month continues to run
7 degrees warmer than normal.  
 
October continues to be drier than normal and, despite the 
rainfall which totaled 0.66 inch late last week, our monthly
total of 2.66 inches is still well over one inch drier than 
normal. This month will become the sixth consecutive month 
to have less than average rainfall.

Today's observations:
 
7 A.M.   
Weather: Clear, few cumulus, stratocumulus offshore distant ENE-SE 
Temperature: 31F, Dew point: 22F, Wind: WNW at 9 kts 
Sea-level pressure: 30.45 inches Hg, rising
Visibility: 80 miles 
6-hour min temp: 30F
24-hour precipitation: 0.29 inches 
BHO SA 1155 CLR 80 310/31/22/2909/045/ FEW CU/SC OFFSHR DSNT ENE-SE/ 
8/400 51008 10036 20030 
   
10 A.M.   
Weather: Thin broken cirrus clouds increasing, cumulus/stratocumulus 
distant offshore ENE-SE 
Temperature: 40F, Dew point: 18F, Wind: W at 10G18 kts
Wind: Variability WSW-NW 
Sea-level pressure: 30.45 inches Hg, falling
Visibility: 80 miles
BHO SA 1455 250 –BKN 80 311/40/18/2810G18/045/ FEW CU/SC OFFSHR DSNT 
ENE-SE CI INCRSNG PST HR CLR SKY E-S WND 25V31/ 8/406/ 50001
 
1 P.M.   
Weather: Thin broken cirrus
Temperature: 47F, Dew point: 17F, Wind: W at 10 kts
Wind: Variability WSW-WNW 
Sea-level pressure: 30.39 inches Hg, falling
Visibility: 80 miles
6 hour max. temp. 48F
BHO SA 1755 250 –SCT 300 –BKN 80 291/47/17/2710/039/ FEW CC WND 24V30/ 
8/001 58020 10048 20031  
 
WEATHER SUMMARY FOR SUNDAY, OCTOBER 28
 
TEMPERATURE (DEGREES F)
MAX.....55    NORMAL.....56 
MIN.....36    NORMAL.....39
MEAN....46    NORMAL.....48
DEPARTURE FROM 30-YEAR NORMAL.........-  2 
TOTAL DEPARTURE FOR THE MONTH....... .+196 [+6.8 DEGREES/DAY]  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............39 WNW AT 3:54 P.M.           
                   AEROVANE.............42 WNW AT 3:54 P.M.      
                   ASOS.................38 WNW AT 3:55 P.M.   
                   DAVIS................40 WNW AT 3:54 P.M.    
FASTEST MILE FOR YESTERDAY..............29 WNW AT 3:54 P.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE...........29 WNW AT 3:56 P.M.      
MAXIMUM 2-MINUTE DAVIS AVERAGE..........31 WNW AT 3:56 P.M.    
AVERAGE WIND SPEED AND DIRECTION......16.4 WNW 
                   ASOS...............15.1  
                   DAVIS..............16.7 W [280 deg]
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M... 0.00  DEPARTURE.....-0.15
                         ASOS..............0.00 
TOTAL PRECIPITATION FOR THE MONTH..........2.66  DEPARTURE.....-1.31  
                         ASOS..............2.71    
TOTAL PRECIPITATION FOR THE YEAR..........35.54  DEPARTURE.....-6.03
                         ASOS.............34.83  
 
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/+5/0/323/46     20 SSE
10/3  73/61/67/+11/0/077/11    23 SSE
10/4  84/65/75/+19/0/425/61    21 SSW
10/5  86/61/74/+19/0/618/89    21 SSW 
10/6  83/62/73/+18/0/526/76    23 WSW
10/7  71/52/61/+7/0.01/110/16  29 NNE 
10/8  58/52/55/+1/0.49/000/00  21 S
10/9  59/50/55/+1/0.10/580/85  29 NNW
10/10 57/50/54/0/0.09/000/00   20 ESE
10/11 58/55/57/+4/0.37/000/00  33 ENE TSTM late evening 
10/12 62/42/52/-1/0.18/135/20  42 W   Aero 43 MPH W 
10/13 59/37/48/-4/0/665/99     25 WNW
10/14 59/42/51/-1/0/629/94     32 W 
10/15 62/38/50/-2/0/426/64     29 WNW   
10/16 61/43/52/+1/0/650/98     25 NW 
10/17 68/41/55/+4/0/455/69     20 SW
10/18 75/57/66/+15/0/151/23    21 S
10/19 70/63/67/+16/0.60/000/00 47 SSE Aero 51 MPH SSE
10/20 70/54/62/+12/0.19/229/35 43 W   Aero 44 MPH W
10/21 73/51/62/+12/0/643/99    25 SSW 
10/22 80/58/69/+19/0/595/92    29 S 
10/23 74/58/66/+17/0.02/135/21 52 SSW  Aero 55 MPH SSW 
10/24 63/50/57/+8/0.10/000/00  24 NW
10/25 54/48/51/+2/0.01/198/31  22 NNE
10/26 58/44/51/+3/0.01/.../..  25 E  
10/27 66/52/59/+11/0.50/000/00 43 S    Aero 44 MPH S 
10/28 55/36/46/-2/0/.../..     39 WNW  Aero 42 MPH WNW
 
10/29 morning low temp. 30F; normal low temp. now 39F
      
NEW DAILY RECORDS FOR OCTOBER 2007:
 
10/4 - RECORD HIGH TEMPERATURE 84F; PREVIOUS 83F IN 1898 and 1959.
     - EQUALED RECORD HIGH MINIMUM TEMPERATURE OF 65F; ALSO IN 1927. 
10/5 - RECORD HIGH TEMPERATURE 86F; PREVIOUS 85F IN 1922
10/6 - EQUALED RECORD HIGH TEMPERATURE 83F; ALSO IN 1990. 
10/19- EQUALED RECORD HIGH MINIMUM TEMPERATURE 63F; PREVIOUS IN 1928. 
10/23 -EQUALED RECORD HIGH MINIMUM TEMPERATURE 58F; ALSO IN 1942
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR OCTOBER 29
HIGH 74 IN 1989
LOW 23 IN 1891
PRECIP 2.27 INCHES IN 1953
SNOWFALL 1.5 INCHES IN 2005
PEAK GUST 69 S IN 2003
 
RECORDS FOR OCTOBER 30
HIGH 75 IN 1946,1989
LOW 21 IN 1928
PRECIP 1.85 INCHES IN 1917
SNOWFALL 0.6 INCHES IN 2000
PEAK GUST 66 NW IN 1963
 
TODAY'S REPORT PREPARED By: Robert Skilling