BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, OCTOBER 19, 2007 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.   
Weather: Sky obscured with fog 
Temperature: 64F, Dew point: 64F, Wind: SSE at 11 kts
Sea-level pressure: 29.91 inches Hg, rising 
Visibility: 1/16 mile, fog
6-hour min temp: 63F
24-hour precipitation: 0.00 
BHO SA 1155 W1 X 1/16F 129/64/64/1611/991/ 8//// 51005 10064 20063
 
10 A.M.   
Weather: Sky obscured with fog
Temperature: 66F, Dew point: 66F, Wind: SSE at 10 kts 
Sea-level pressure: 29.89 inches Hg, falling
Visibility: 1/16 mile, fog  
BHO SA 1455 W2 X 1/16F 123/66/66/1510/989/ 8//// 58006
 
1 P.M.   
Weather: Overcast stratus, rain and fog
Temperature: 67F, Dew point: 67F, Wind: S at 15G24 kts 
Sea-level pressure: 29.82 inches Hg, falling
Visibility: 2 miles, variable 1-4 miles, rain and fog  
6-hour max temp: 70F
6-hour precipitation: 0.12 in.
BHO SA 1755 E4 OVC 2VR-F 099/67/67/1815G24/982/ VSBY 1V4/ 
8/7// ASOS 60013 MANUAL 6012/ 56024 10070 20064
 
WEATHER SUMMARY FOR THURSDAY, OCTOBER 18
 
TEMPERATURE (DEGREES F)
MAX.....75    NORMAL.....60 
MIN.....57    NORMAL.....42
MEAN....66    NORMAL.....51
DEPARTURE FROM 30-YEAR NORMAL.........+15 
TOTAL DEPARTURE FOR THE MONTH.........+98 [+5.2 DEGREES/DAY]  

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............21 S   AT  7:56 P.M.         
                   AEROVANE............ 19 S   AT  8:03 P.M.          
                   ASOS.................20 SSW AT  7:56 P.M.          
                   DAVIS................23 S   AT  7:56 P.M.        
FASTEST MILE FOR YESTERDAY..............15 S   AT 11:18 P.M. *                   
MAXIMUM 2-MINUTE ASOS AVERAGE...........15 S   AT 11:38 P.M.          
MAXIMUM 2-MINUTE DAVIS AVERAGE..........unknown  
AVERAGE WIND SPEED AND DIRECTION...... 8.5 S   
                   ASOS............... 8.7   
                   DAVIS.............. 8.1 SSW [195 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.....-1.29  
                         ASOS..............1.25    
TOTAL PRECIPITATION FOR THE YEAR..........34.11  DEPARTURE.....-6.01
                         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/-4/0/665/99     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/+4/0/462/70     20 SW
10/18 75/57/66/+15/0/.../..    21 S
 
10/19 morning low temp. 63F; normal low now 42F
 
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 19
HIGH 81F IN 1945
LOW 21F IN 1922
PRECIP 3.64 INCHES IN 1932
SNOWFALL 1.0 INCHES IN 1972
PEAK GUST 66 MPH SSW IN 1967
 
RECORDS FOR OCTOBER 20
HIGH 78 IN 1965,1984
LOW 24 IN 1972
PRECIP 7.10 INCHES IN 1996 (RECORD FOR MONTH)
SNOWFALL TRACE IN 1934,1943
PEAK GUST 63 MPH W IN 1966
 
TODAY'S REPORT PREPARED By: Stephanie Radner