BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, OCTOBER 30, 2008 
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED
 
Today's observations:
 
8 A.M. EDT
Weather: Clear, few stratocumulus, few dense cirrus
Temperature: 30F, Dew point: 24F, Wind: WSW at 9 kts
Sea-level pressure: 30.16 inches Hg, rising
Visibility: 55 miles
6-hourly minimum temperature: 29F
BHO SA 1155 CLR 55 214/30/24/2509/016/ FEW SC N-E-SSW
FEW CI W-N-E AND SW PTCHS DENS CI/ 8/502 53036 10031 20029
 
11 A.M. EDT
Weather: Clear, few stratocumulus
Temperature: 39F, Dew point: 23F, Wind: W at 10G20 kts,
Wind: Direction variability WSW-N
Sea-level pressure: 30.24 inches Hg, rising
Visibility: 65 miles 
BHO SA 1455 CLR 65 239/39/23/2810G20/024/ FEW SC ALQDS WND 24V35/
8/500 51025
 
2 P.M. EDT
Weather: Scattered stratocumulus
Temperature: 44F, Dew point: 22F, Wind: WNW at 14G23 kts,
Wind: Direction variability SW-NNW
Sea-level pressure: 30.27 inches Hg, rising
Visibility: 75 miles  
6-hourly maximum temperature: 44F
BHO SA 1755 E45 SCT 75 250/44/22/2914G23/027/ WND 22V33/
8/500 53011 10044 20030
 
WEATHER SUMMARY FOR WEDNESDAY, OCTOBER 29
 
TEMPERATURE (DEGREES F)
MAX.....44    NORMAL.....56
MIN.....32    NORMAL.....39
MEAN....38    NORMAL.....47
 
DEPARTURE FROM 30-YEAR NORMAL..............-9
TOTAL DEPARTURE FOR THE MONTH..............+1 [-0.2 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............27  DEPARTURE........+9
TOTAL HEATING UNITS FOR THE MONTH...........378  DEPARTURE........-8
TOTAL HEATING UNITS FOR THE SEASON..........494  DEPARTURE.......-61
TOTAL HEATING UNITS LAST SEASON TO DATE.....319  DIFFERENCE.....+175 
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............43 SW  AT 12:30 A.M.      
                   AEROVANE.............40 SW  AT 12:30 A.M.    
                   ASOS.................41 WSW AT  2:23 A.M.       
                   DAVIS................44 SW  AT  2:22 A.M.  
FASTEST MILE FOR YESTERDAY..............31 SW  AT  2:04 A.M. *
MAXIMUM 2-MINUTE ASOS AVERAGE...........30 WSW AT  2:06 A.M.     
MAXIMUM 2-MINUTE DAVIS AVERAGE..........29 WSW AT  2:06 A.M.
                   AVERAGE............19.6 SW  
                   ASOS...............17.9
                   DAVIS..............19.5 WSW [243 deg]
* last of several occurrences...
 
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..........2.04   DEPARTURE.......-2.08
                         ASOS..............2.04
TOTAL PRECIPITATION FOR THE YEAR..........44.94   DEPARTURE.......+3.22
                         ASOS.............47.52 #
#  Includes erroneous ASOS precipitation data on 2/13/08.
 
PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 2008 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane recording wind system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
10/1  68/58/63/+6/0.49/120/17     38 SW   TSTM #
10/2  62/46/54/-2/0.11/455/65     45 W 
10/3  62/45/54/-2/T/376/54        44 SSW  Aero 43 MPH SSW
10/4  61/40/51/-5/0.00/612/88     32 WSW
10/5  53/45/49/-6/T/000/00        18 WNW
10/6  58/39/49/-6/0.00/303/44     28 WNW
10/7  64/37/51/-4/0.00/687/100    23 WNW
10/8  69/43/56/+2/0.00/581/85     32 S    Aero 30 MPH S
10/9  72/55/64/+10/0.02/510/75    33 WSW 
10/10 69/53/61/+7/0.00/664/98     29 W
10/11 68/49/59/+6/0.00/668/99     20 NNW
10/12 67/47/57/+4/0.00/625/93     21 W
10/13 62/50/56/+4/0.00/308/46     20 NE
10/14 65/50/58/+6/0.00/514/77     30 SSE
10/15 64/52/58/+6/0.00/618/93     21 ENE  
10/16 67/51/59/+8/T/026/04        35 NW
10/17 59/42/51/0/0.00/474/72      26 NW
10/18 51/37/44/-7/0.00/440/67     25 N
10/19 46/36/41/-10/0.00/176/27    36 NNE  Aero 36 MPH NNE
10/20 54/34/44/-6/0.00/631/97     25 N 
10/21 59/43/51/+1/0.01/129/20     20 W
10/22 44/38/41/-9/0.10/000/00     32 NNW
10/23 45/31/38/-11/0.00/520/81    23 N   
10/24 62/34/48/-1/0.00/589/92     22 WSW
10/25 66/44/55/+6/0.28/038/06     60 SSE  Aero 61 MPH SSE TSTM
10/26 64/48/56/+8/0.60/.../..     55 SSE  Aero 60 MPH SSE
10/27 66/47/57/+9/0.00/.../..     21 NNE
10/28 51/36/44/-4/0.43/.../..     42 SSE
10/29 44/32/38/-9/0.00/.../..     43 SW
 
10/30 morning low temp. 29F; normal low temp. 39F
 
# Thunderstorm gust 
 
NEW DAILY RECORDS FOR OCTOBER
 
None...
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
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
 
RECORDS FOR OCTOBER 31
HIGH 79 IN 1946
LOW 22 IN 1904
PRECIP 3.74 INCHES IN 1991
SNOWFALL TRACE IN 1906
PEAK GUST 70e S IN 1945
 
TODAY'S REPORT PREPARED By: Stephanie Radner