BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, JANUARY 3, 2008
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.   
Weather: Clear
Temperature: 3F, Dew point: -6F, Wind: WNW at 14G25 kts
Wind: Peak gust past hour 28 kts NW at 6:04 A.M.
Sea-level pressure: 30.38 inches Hg, rising
Visibility: 40 miles
6-hour min temp: 3F 
24-hour precip: trace
24-hour snowfall: trace
Snow on ground: 1 inch
BHO SA 1155 CLR 40 289/3/-6/3014G25/038/ FEW SC DSNT 
NNE-E-SSE PK WND 3129/04/ 8/500 4/001 51036 10006 20003
 
10 A.M.
Weather: Clear
Temperature: 5F, Dew point: -7F, Wind: NW at 17G27 kts 
Wind: Peak gust past hour 28 kts NW at 9:25 A.M.
Sea-level pressure: 30.46 inches Hg, rising  
Visibility:  45 miles
BHO SA 1455 CLR 45 316/5/-7/3117G27/046/ FEW SC DSNT 
NNE-ESE PK WND 3128/25/ 8/500 51027
 
1 P.M.
Weather: Clear
Temperature: 10F, Dew point: -7F, Wind: WNW at 15G22 kts
Wind: Peak gust past hour 27 kts WNW at 12:06 P.M.
Sea-level pressure: 30.47 inches Hg, rising
Visibility: 60 miles 
6-hourly max. temp. 10F
BHO SA 1755 CLR 60 317/10/-7/2915G22/047/ FEW SC DSNT 
NE-SE PK WND 3027/06/ 8/500 50001 10010 20002
 
WEATHER SUMMARY FOR WEDNESDAY, JANUARY 2
 
TEMPERATURE (DEGREES F)
MAX.....29    NORMAL.....35 
MIN......7    NORMAL.....19
MEAN....18    NORMAL.....27
DEPARTURE FROM 30-YEAR NORMAL...........-9 
TOTAL DEPARTURE FOR THE MONTH...........-3 [-1.7 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............47  DEPARTURE...... +9 
TOTAL HEATING UNITS FOR THE MONTH............79  DEPARTURE...... +3 
TOTAL HEATING UNITS FOR THE SEASON.........2246  DEPARTURE.....-159
TOTAL HEATING UNITS LAST SEASON TO DATE....1924  DIFFERENCE....+322
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............43 NW  AT  6:23 P.M. *  
                   AEROVANE.............43 NW  AT  6:23 P.M.     
                   ASOS.................41 NW  AT  8:58 P.M.    
                   DAVIS................42 W   AT  5:49 P.M.    
FASTEST MILE FOR YESTERDAY..............30 NW  AT  5:57 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE...........30 NW  AT  8:59 P.M.     
MAXIMUM 2-MINUTE DAVIS AVERAGE..........31 WNW AT  8:59 P.M.     
AVERAGE WIND SPEED AND DIRECTION...... 16.4 WNW
                   ASOS............... 15.9           
                   DAVIS.............. 16.3 WNW [291 deg]       
* last of several occurrences.
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M...trace  DEPARTURE....-0.15 
                         ASOS..............0.00 
TOTAL PRECIPITATION FOR THE MONTH..........0.24  DEPARTURE....-0.06
                         ASOS..............0.23  
TOTAL PRECIPITATION FOR THE YEAR.......... 0.24  DEPARTURE....-0.06
                         ASOS............. 0.23  
 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M........trace  DEPARTURE.....-0.5
TOTAL SNOWFALL FOR THE MONTH................1.8  DEPARTURE.....+0.8
TOTAL SNOWFALL FOR THE SEASON..............32.3  DEPARTURE....+17.7
 
PRELIMINARY CLIMATE SUMMARY FOR JANUARY 2008 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
 
AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available
 
1/1   38/28/33/+6/0.24/1.8/055/10   30 E   
1/2   29/7/18/-9/T/T/006/01         43 NW
 
1/3   morning low temp. 2F; normal low is now 19F
 
NEW DAILY RECORDS FOR JANUARY 2008: 
No new daily records.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JANUARY 3
HIGH 64F IN 2000
LOW -4F IN 1904
PRECIP 1.93 INS. IN 1999
SNOW 11.3 INS. 1996
WIND 92 MPH S IN 1960
 
RECORDS FOR JANUARY 4
HIGH 60F IN 2000
LOW -8F IN 1904, 1981
PRECIP 1.79 INS. IN 1982
SNOW 8.6 INS. 1923, 1941
WIND 84 MPH S IN 1982
 
TODAY'S REPORT PREPARED By: Stephanie Radner