BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, OCTOBER 12, 2007 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.   
Weather: Overcast stratocumulus with breaks overhead and E-SE   
Temperature: 55F, Dew point: 55F, Wind: S at 12 kts 
Sea-level pressure: 29.47 inches Hg, rising
Visibility: 9 miles, higher E-SE     
6-hour min temp: 55F
24-hour precipitation: 0.29 inch  
BHO SA 1155 E35 OVC 9 978/55/55/1712/947/ FEW LWR STRA 
HIER CLDS VSBL E-SE THN SPTS IOVC OVHD BRKS E-SE 
PTCHS FG BLO SMT THN F VSBY HIER E-SE/ 8/53/ 51006 
ASOS 60001 MANUAL 6000/ ASOS 70032 MANUAL 70029 10061 20055
 
10 A.M.   
Weather: Overcast with breaks, light rain 
Temperature: 56F, Dew point: 51F, Wind: SSW at 13 kts
Sea-level pressure: 29.44 inches Hg, falling
Visibility: 12 miles, NNE-E 15 miles
3-hour precip: 0.01 inch   
BHO SA 1455 25 SCT E35 BKN 60 OVC 12RW- 968/56/51/2113/944/ 
SC MDT CUFRM TOPS ALQDS DRK BASES BRKS OVHD AND N-E 
HIER CLDS VSBL VIRGA SE THN F ALQDS XCPT NNE-E 
VSBY NNE-E 15 RB45/ 8/201 55010 ASOS 60001 MANUAL 6001/
 
1 P.M.   
Weather: Overcast, fog and light rain  
Temperature: 55F, Dew point: 55F Wind: NE @ 14G23 kts  
Sea-level pressure: 29.41 inches Hg, falling
Visibility: 10 miles, rain/fog  
6-hourly rainfall: 0.14 inch
6-hourly max. temp. 61F
BHO SA 1755 E6 BKN 15 OVC 10 961/56/55/2509/941/ 
PTCHS FG BLO SMT THN F/ 8/72/ 56007 ASOS 60013 MANUAL 6014/ 
10062 20054
 
WEATHER SUMMARY FOR THURSDAY, OCTOBER 11
 
TEMPERATURE (DEGREES F)
MAX.....58    NORMAL.....62 
MIN.....55    NORMAL.....44
MEAN....57    NORMAL.....53
DEPARTURE FROM 30-YEAR NORMAL.........+ 4 
TOTAL DEPARTURE FOR THE MONTH.........+86 [+7.6 DEGREES/DAY]  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..............33 ENE AT 10:19 P.M.        
                   AEROVANE.............. 33 ENE AT 10:19 P.M.        
                   ASOS...................31 E   AT 10:19 P.M.       
                   DAVIS..................31 ENE AT 10:19 P.M.       
FASTEST MILE FOR YESTERDAY................26 ENE AT 10:17 P.M.             
MAXIMUM 2-MINUTE ASOS AVERAGE.............24 E   AT 10:16 P.M.         
MAXIMUM 2-MINUTE DAVIS AVERAGE............25 ENE AT 10:16 P.M. 
AVERAGE WIND SPEED AND DIRECTION.........13.8 NE   
                   ASOS..................13.2   
                   DAVIS.................13.2 NE [056 deg]   
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.29  DEPARTURE.....+0.15
                         ASOS..............0.32 
TOTAL PRECIPITATION FOR THE MONTH..........1.05  DEPARTURE.....-0.49  
                         ASOS..............1.07    
TOTAL PRECIPITATION FOR THE YEAR..........33.93  DEPARTURE.....-5.21
                         ASOS.............33.19  
 
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
  
10/12 morning low temp. 55F; normal low now 44F
 
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 12
HIGH 87 IN 1954
LOW 31 IN 1906
PRECIP 1.53 INCHES IN 1948
SNOWFALL TRACE IN 1941
PEAK GUST 55 MPH NW IN 1963
 
RECORDS FOR OCTOBER 13
HIGH 84 IN 1930,1954
LOW 30 IN 1934,1936,1988
PRECIP 5.92 INCHES IN 1895
SNOWFALL 4.2 INCHES IN 1934
PEAK GUST 46e MPH W IN 1950
 
TODAY'S REPORT PREPARED By: Stephanie Radner