BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, OCTOBER 16, 2007 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
NEAR NORMAL TEMPS. AND HIGHS 57 TO 62F
DRY OCTOBER CONTINUES
 
Temperatures, especially highs, have been in an
unusually narrow range from 57 to 62 degrees  
for over a week now.  At the same time the 
daily means have not strayed more than a few degrees
from the norms. October continues to be 5 degrees
warmer than normal. 
The dry October continues with our precipitation 
total of 1.23 inches close to one inch below normal.  
 
Today's observations:
 
7 A.M.   
Weather: Clear, few cumulus distant ENE and forming E-ESE,
few altocumulus SW-NNW, few cirrus SSE-SW 
Temperature: 44F, Dew point: 38F, Wind: WNW at 11 kts
Wind: variability W-NNW 
Sea-level pressure: 30.17 inches Hg, rising
Visibility: 60 miles 
6-hour min temp: 43F
24-hour precipitation: 0.00 
BHO SA 1155 CLR 60 216/44/38/3011/017/ FEW CU OFFSHR DSNT 
ENE AND FEW CU FRMG E-ESE FEW AC DSNT SW-NNW FEW CI SSE-SW 
WND 27V33/ 8/141 51010 10047 20043
 

10 A.M.   
Weather: Clear, few distant small cumulus 
Temperature: 52F, Dew point: 37F, Wind: WNW at 10 kts 
Sea-level pressure: 30.13 inches Hg, falling
Visibility: 70 miles  
BHO SA 1455 CLR 70 213/52/37/3010/016/ FEW SML DSNT CUFRA/CU 
WND 25V32/ 8/100 58003 
 

1 P.M.    
Weather: Clear, few cirrus, cirrocumulus SSE-SW-WNW  
Temperature: 58F, Dew point: 38F, Wind: W at 05 kts
Wind: Light  
Sea-level pressure: 30.13 inches Hg, falling
Visibility: 70 miles 
6-hour max. temp: 59F  
BHO SA 1755 CLR 70 203/58/38/2805/013/ FEW CI/CC SSE-SW-WNW 
WND LGT/ 8/001 58010 10059 20044 
 
WEATHER SUMMARY FOR MONDAY, OCTOBER 15
 
TEMPERATURE (DEGREES F)
MAX.....62    NORMAL.....61 
MIN.....38    NORMAL.....43
MEAN....50    NORMAL.....52
DEPARTURE FROM 30-YEAR NORMAL.........- 2 
TOTAL DEPARTURE FOR THE MONTH.........+78 [+5.0 DEGREES/DAY]  
 

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............29 WNW AT 11:10 A.M. *        
                   AEROVANE............ 29 WNW AT 10:57 A.M.         
                   ASOS.................29 WNW AT 10:57 A.M.         
                   DAVIS................29 W   AT 10:56 A.M.        
FASTEST MILE FOR YESTERDAY..............20 WNW AT  2:55 P.M. *                 
MAXIMUM 2-MINUTE ASOS AVERAGE...........20 WNW AT  2:55 P.M.         
MAXIMUM 2-MINUTE DAVIS AVERAGE..........22 WNW AT  2:54 P.M. 
AVERAGE WIND SPEED AND DIRECTION......10.3 W     
                   ASOS...............10.3   
                   DAVIS..............10.8 W [280 deg]  
 
* last of several occurrences..
 
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..........1.23  DEPARTURE.....-0.87  
                         ASOS..............1.25    
TOTAL PRECIPITATION FOR THE YEAR..........34.11  DEPARTURE.....-5.59
                         ASOS.............33.37  
 
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/.../..     25 WNW
10/14 59/42/51/-1/0/.../..     32 W 
10/15 62/38/50/-2/0/.../..     29 WNW  
 
10/16 morning low temp. 43F; normal low is now 43F
 
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.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR OCTOBER 16
HIGH 86 IN 1897
LOW 28 IN 1886
PRECIP 2.82 INCHES IN 1974
SNOWFALL (NONE)
PEAK GUST 68e MPH SSE IN 1954 (HURRICANE HAZEL)
 
RECORDS FOR OCTOBER 17
HIGH 86F IN 1947
LOW 25F IN 1886
PRECIP 1.87 INCHES IN 1989
SNOWFALL TRACE IN 1970
PEAK GUST 55 MPH NE IN 1964
 
TODAY'S REPORT PREPARED By: Robert Skilling