BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, AUGUST 20, 2006
ALL TIMES ARE IN EASTERN STANDARD TIME
 

Today's observations:
                                
7 A.M.
Weather: Obscured with mist and fog
Temperature: 67F, Dew point: 67F, Wind: SE at 18G24 kt 
Sea-level pressure: 29.76 inches Hg, falling
Visibility: 1/16 of a mile
BHO SA 1155 W2 X1 1/16L-F 079/67/67/1418G24/976/ 
FEW STRA DFTG OVR SMT PK WND 1227/1107/ 8//// 58023 ASOS 60103 
MANUAL 70100
 
10 A.M.
Weather: Overcast stratocumulus
Temperature: 72F, Dew point: 72F, Wind: S at 15G20 kt
Sea-level pressure: 29.76 inches Hg, falling
Visibility: 1 mile
BHO SA 1755 E10 OVC 1F 079/72/72/1915G20/976/ 
FEW BRGT SPTS IOVC/ 8/4// 56007 6000/
 

WEATHER SUMMARY FOR SATURDAY, AUGUST 19  
 
TEMPERATURE (DEGREES F)
MAX.....82   NORMAL.....79 
MIN.....61   NORMAL.....61   
MEAN....72   NORMAL.....70   
DEPARTURE FROM 30-YEAR NORMAL......+2
TOTAL DEPARTURE FOR THE MONTH.....+20 (0.9 DEGREES/DAY)
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.........23 S AT 11:23 P.M. 
                   AEROVANE..........23 S AT 11:45 P.M.    
                   ASOS..............22 S AT 11:24 P.M.
                   DAVIS.............25 S
FASTEST MILE FOR YESTERDAY...........17 S AT 11:46 P.M. 
MAXIMUM 2-MINUTE DAVIS AVERAGE.......19 SSW  
MAXIMUM 2-MINUTE ASOS AVERAGE........18 S AT 11:24 P.M.   
AVERAGE WIND SPEED AND DIRECTION.....12.1 S
                   ASOS..............12.5
 
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....1.00   DEPARTURE....+0.87   
                         ASOS..............1.03
TOTAL PRECIPITATION FOR THE MONTH..........2.31   DEPARTURE....-0.13
                         ASOS..............2.36
TOTAL PRECIPITATION FOR THE YEAR..........41.84   DEPARTURE....+9.99
                         ASOS.............41.42
 
PRELIMINARY CLIMATE SUMMARY FOR AUGUST 2006......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  91/73/82/+10/0/425/49     25 SSW
8/2  94/75/85/+13/0.01/649/75  50 SW  TSTM 
8/3  91/64/78/+6/0/699/81      30 W
8/4  76/64/70/-2/0.12/293/34   23 WNW
8/5  84/65/75/+3/0/678/79      21 WNW
8/6  77/61/69/-3/0/822/96      25 SSE
8/7  83/65/74/+3/0.11/350/41   40 S   Aero 42 MPH S 
8/8  80/63/72/+1/0/842/99      24 NW    
8/9  81/58/70/-1/0/849/100     22 SSW
8/10 83/57/71/+2/0.06/432/51   28 WSW TSTM 
8/11 75/57/66/-5/0/843/100     24 NNW 
8/12 73/51/62/-9/0/757/90      29 WNW      
8/13 76/52/64/-7/0/729/87      28 WSW
8/14 83/56/70/0/0/727/87       37 S 
8/15 77/66/72/+2/1.01/.../..   30 S 
8/16 82/62/72/+2/0/.../..      22 W
8/17 79/60/70/0/0/.../..       18 NE
8/18 81/64/73/+3/0/.../..      23 S
8/19 82/61/72/+2/0/.../..      23 S 
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
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
 
RECORDS FOR AUGUST 21
HIGH      100F IN 1977
LOW       48F IN 1890
PRECIP    2.84 INCHES IN 1988
PEAK GUST 54 MPH WSW 2004
 
TODAY'S REPORT BY: Andy Hoell