BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, AUGUST 2, 2009
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.  
Weather: Obscured by fog
Temperature: 67F, Dew point: 67F, Wind: SSE at 12 kt
Sea-level pressure: 30.05 inches Hg, steady
Visibility: 1/4 of a mile
6-hour minimum temp: 64F
BHO SA 1155 W2 X1 1/4F 175/67/67/1512/005/
8//// 55002 10067 20064
 
10 A.M.
Weather: Broken cumulus congestus;
broken altocumulus stratiforis; broken cirrus
Temperature: 75F, Dew point: 65F, Wind: SSE at 13G18 kt
Sea-level pressure: 30.03 inches Hg, falling
Visibility: 20 miles; hazy
BHO SA 1455 E30 BKN 120 BKN 180 OVC 20 169/75/65/1613G18/003/
FEW BINOVC ALQDS HAZY/ 8/252 55006
 
1 P.M.  
Weather: Broken stratocumulus; overcast altostratus translucidus
Temperature: 75F, Dew point: 65F, Wind: SE at 12G18 kt
Sea-level pressure: 29.97 inches Hg, falling
Visibility: 25 miles
6-hourly max. temp: 77F 
BHO SA 1755 E25 BKN 100 BKN 150 OVC 25 150/75/65/1312G18/997/
8/41/ 56025 10077 20067
 
 
WEATHER SUMMARY FOR SATURDAY, AUGUST 1
 
TEMPERATURE (DEGREES F)
MAX.....83    NORMAL.....81
MIN.....63    NORMAL.....63
MEAN....73    NORMAL.....72
 
DEPARTURE FROM 30-YEAR AVERAGE..........+1
TOTAL DEPARTURE FOR THE MONTH...........+1  [+1.0 DEGREES/DAY]
 
HEATING DEGREE DATA WILL RESUME IN SEPTEMBER
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.............18 SSE AT  7:14 P.M.  
                   AEROVANE..............14 SSE AT  7:21 P.M. 
                   ASOS..................16 SSW AT  8:45 P.M.
                   DAVIS.................17 S   AT  6:00 P.M.
FASTEST MILE FOR YESTERDAY...............12 SSE AT  7:34 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE............14 S   AT  7:33 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE...........UNKNOWN
AVERAGE WIND SPEED AND DIRECTION........6.9 W 
                   ASOS.................6.9 
                   DAVIS................6.8 SW [236 DEG]
* last of several occurrences....
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE....-0.12
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........0.00  DEPARTURE....-0.12
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE YEAR..........31.26  DEPARTURE....+1.73
                         ASOS.............32.38
 
PRELIMINARY CLIMATE SUMMARY FOR AUGUST 2009 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
8/1  83/63/73/+1/0/.../..    18 SSE
 
NEW DAILY RECORDS FOR AUGUST 2009 TO DATE...
NONE
 
DAILY EXTREMES
 
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR AUGUST 2
HIGH 101F IN 1975 [STATION RECORD MAXIMUM - Tied with 8/10/1949]
LOW 50 IN 1929, 1947
PRECIP 1.59 INCHES IN 1946
PEAK GUST 50 MPH SW IN 2006
 
RECORDS FOR AUGUST 3
HIGH 96F IN 1930
LOW 50F IN 1976
PRECIP 1.45 INCHES IN 1979
PEAK GUST 52 MPH NW IN 2008 [TSTM]

TODAY'S REPORT PREPARED BY: Andrew Hoell