BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, AUGUST 19, 2007   
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.   
Weather: Scattered altocumulus, cirrus
Temperature: 54F, Dew point: 46F, Wind: SW at 9 kt 
Sea-level pressure: 30.21 inches Hg, rising
Visibility: 60 miles
6-hour min temp: 51F
BHO SA 1155 150 SCT 250 SCT 60 231/54/46/2309/021/ 
FEW ACC NW CLR WSW/ 8/031 53012 10054 2051
 
10 A.M.   
Weather: Scattered altocumulus
Temperature: 68F, Dew point: 46F, Wind: Variable 8kt
Sea-level pressure: 30.20 inches Hg, steady
Visibility: 65 miles
BHO SA 1455 150 BKN 65 228/68/46/2108/020/ 
FEW SC FRMG ALQDS WND 17V34/ 8/530 58003 
 

WEATHER SUMMARY FOR SATURDAY, AUGUST 18
 
TEMPERATURE (DEGREES F)
MAX.....71    NORMAL.....79 
MIN.....52    NORMAL.....61
MEAN....62    NORMAL.....70
DEPARTURE FROM 30-YEAR NORMAL.........-8
TOTAL DEPARTURE FOR THE MONTH........+23  (+1.1 DEGREES/DAY)
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..............46 WNW AT  9:46 A.M. 
                   AEROVANE...............42 WNW AT  9:54 A.M. 
                   ASOS...................N/A  #
                   DAVIS..................45 W   AT 12:57 A.M. 
FASTEST MILE FOR YESTERDAY................39 WNW AT  9:54 A.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE.............N/A  # 
MAXIMUM 2-MINUTE DAVIS AVERAGE............35 W   AT 12:57 A.M.
AVERAGE WIND SPEED AND DIRECTION..........15.8 W  
                   ASOS...................N/A  #
                   DAVIS..................16.4 WNW [286 deg.]   
# ASOS WINDS SWITCHED OFF BY NWS 6/6, IT IS NOT KNOWN WHEN 
  THAT DATA WILL RESUME
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE.....-0.13
                         ASOS..............0.00 
TOTAL PRECIPITATION FOR THE MONTH..........0.62  DEPARTURE.....-1.69  
                         ASOS..............0.55    
TOTAL PRECIPITATION FOR THE YEAR..........30.98  DEPARTURE.....-0.74 
                         ASOS.............30.22    
 
PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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
 
8/1  84/67/76/+4/0/851/98     20 NNE    
8/2  92/68/80/+8/0/823/95     21 S     
8/3  92/70/81/+9/0/760/88     28 SSW
8/4  89/71/80/+8/0/827/96     29 WSW  
8/5  80/62/71/-1/0/842/98     23 SSE 
8/6  77/61/69/-3/0.05/129/15  36 SSE  Aero 34 MPH SSE TSTM  
8/7  82/67/75/+4/0.12/410/48  15 SSE 
8/8  88/70/79/+8/0.10/349/41  36 S
8/9  75/60/68/-3/0/722/85     32 NW
8/10 63/53/58/-13/0.19/017/02 16 SSW
8/11 83/52/68/-3/0/743/88     21 WNW
8/12 86/64/75/+4/0/665/79     21 SSW
8/13 83/64/74/+3/0.01/260/31  30 NW   TSTM
8/14 78/58/68/-2/0/812/97     23 NW
8/15 83/59/71/+1/0/651/78     36 SSW  Aero 34 MPH SSW
8/16 87/67/77/+7/0/641/77     33 SSW
8/17 78/62/70/0/.../.../..    43 S    Aero 39 MPH S
8/18 71/52/62/-8/0/.../..     46 WNW  Aero 42 MPH WNW
 
NEW DAILY RECORDS FOR AUGUST 2007: 
 
None to date
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR AUGUST 19
HIGH 90F IN 1906, 1966, 2002
LOW 48F IN 1958
PRECIP 7.02 INCHES IN 1955 [T.S. DIANE - RECORD FOR MONTH]
PEAK GUST 78 MPH ENE 1991 [HURRICANE BOB]
 
RECORDS FOR AUGUST 20
HIGH 93F IN 1937
LOW 48F IN 1896, 1905, 1949
PRECIP 2.71 INCHES IN 1970
PEAK GUST 47 MPH W 1983
 
TODAY'S REPORT PREPARED By: Andrew Hoell