BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, OCTOBER 26, 2007 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.   
Weather: Scattered cirrus
Temperature: 46F, Dew point: 45F, Wind: NE at 11 kts 
Sea-level pressure: 30.54 inches Hg, rising 
Visibility: 10 miles, thin fog 
6-hour min temp: 44F
24-hour precipitation: trace
BHO SA 1155 250 SCT 10 343/46/45/0411/054/ PTCHS DENSE CI 
THN K LYR SE-S DRK K LYR SE-SW-N PTCHS DENSE SHLW STEAM 
FG OVR PONDS SE PTCHS DENSE GF S THN F ALQDS/ 8/002 53010 
10046 20044
 
10 A.M.   
Weather: Scattered cumulus, altocumulus, cirrus
Temperature: 56F, Dew point: 43F, Wind: ENE at 11G20 kts
Wind: Variable direction N-ESE
Sea-level pressure: 30.53 inches Hg, falling
Visibility: 30 miles
BHO SA 1455 25 SCT 120 SCT 220 SCT 30 338/56/43/0611G20/053/ 
WND 01V12/ 8/131 58005
 
1 P.M. 
Weather: Scattered altocumulus, overcast cirrostratus 
with breaks, few cumulus, few ACSL SE-S, partial halo, 
parahelion
Temperature: 57F, Dew point: 43F, Wind: E at 11 kts
Wind: Variable direction NNE-ESE  
Sea-level pressure: 30.52 inches Hg, falling
Visibility: 40 miles 
6-hour max. temp. 58F
\BHO SA 1755 140 SCT 220 OVC 40 334/57/43/0911/052/ 
FEW CUFRA FEW ACSL SE-S NMRS BRKS PARTIAL HALO 
PARAHELION WND 02V12/ 8/147 58009 10058 20046
 
WEATHER SUMMARY FOR THURSDAY, OCTOBER 25
 
TEMPERATURE (DEGREES F)
MAX.....54    NORMAL.....57 
MIN.....48    NORMAL.....40
MEAN....51    NORMAL.....49
DEPARTURE FROM 30-YEAR NORMAL.........+ 2 
TOTAL DEPARTURE FOR THE MONTH........+184 [+7.2 DEGREES/DAY]  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............22 NNE AT  2:03 P.M.          
                   AEROVANE.............22 NNE AT  1:44 P.M.   
                   ASOS.................20 NNE AT  2:03 P.M.  
                   DAVIS................20 NNE AT  1:44 P.M.  
FASTEST MILE FOR YESTERDAY..............14 NNE AT  1:52 P.M.     
MAXIMUM 2-MINUTE ASOS AVERAGE...........15 NNE AT  2:04 P.M.    
MAXIMUM 2-MINUTE DAVIS AVERAGE..........16 NNE AT  1:55 P.M.  
AVERAGE WIND SPEED AND DIRECTION......9.8 NNE  
                   ASOS...............9.8 
                   DAVIS..............9.4 NE/NNE [34 deg]
 
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..........2.15  DEPARTURE.....-1.37  
                         ASOS..............2.16    
TOTAL PRECIPITATION FOR THE YEAR..........35.03  DEPARTURE.....-6.09
                         ASOS.............34.28  
 
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/+4/0/455/69     20 SW
10/18 75/57/66/+15/0/151/23    21 S
10/19 70/63/67/+16/0.60/000/00 47 SSE Aero 51 MPH SSE
10/20 70/54/62/+12/0.19/229/35 43 W   Aero 44 MPH W
10/21 73/51/62/+12/0/643/99    25 SSW 
10/22 80/58/69/+19/0/595/92    29 S 
10/23 74/58/66/+17/0.02/135/21 52 SSW  Aero 55 MPH SSW 
10/24 63/50/57/+8/0.10/000/00  24 NW
10/25 54/48/51/+2/0.01/198/31  22 NNE
 
10/26 morning low temp. 44F; normal low is now 40F
 
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. 
10/19- EQUALED RECORD HIGH MINIMUM TEMPERATURE 63F; PREVIOUS IN 1928. 
10/23 -EQUALED RECORD HIGH MINIMUM TEMPERATURE 58F; ALSO IN 1942
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR OCTOBER 26
HIGH 80 IN 1963
LOW 24 IN 1933
PRECIP 1.72 INCHES IN 1894
SNOW 3.0 INCHES IN 1962
WIND 59 MPH SSE IN 1967
 
RECORDS FOR OCTOBER 27
HIGH 83 IN 1963
LOW 21 IN 1936
PRE 1.79 INCHES IN 1886
SNOW 0.1 INCHES IN 1957
WIND 54 MPH WNW IN 1968
 
TODAY'S REPORT PREPARED By: Stephanie Radner