BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JULY 7, 2008     
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED 
 
TEMPERATURES RISE TO TYPICAL SUMMER LEVELS AFTER  
AN OVERCAST AND VERY COOL INDEPENDENCE DAY IN THE 60'S
DOWNPOUR IN THUNDERSTORM ON 2ND BROUGHT AN INCH OF RAIN  
 
After a overcast, cool and damp holiday on July 4th and
on July 5th too with some light precipitation, temperatures 
rose to the low 80's on Sunday, July 6th.  After there 
was precipitation on each of the first five days of the
month we finally got a day without any rain yesterday. 
A mix of cool and warm days so far this month has left 
the month close to normal or slightly warmer than normal
in temperature through the first week.  
 
A heavy thunderstorm on July 2nd brought most of this
month's rainfall to date.  The downpour brought almost a 
half inch (0.44) in 10 minutes and 0.70 inch in 30 minutes
with a total of 1.02 inches in about an hour and a half   
ending at 3:30 P.M. EDT
 

Today's observations:
 
8 A.M. EDT
Weather: Low overcast stratus, bright spots in overcast 
Temperature: 70F, Dew point: 67F,  Wind: SW at 6 kts 
Sea-level pressure: 30.09 inches Hg, steady
Visibility: 6 miles in thin fog
6-hourly minimum temperature: 67F     
24-hourly rainfall: 0.00
BHO SA 1155 E6 OVC 6F 191/70/67/2206/009/ 
BRGHT SPTS IOVC SUN OCNLY DMLY VSBY/ 8/6// 
51007 10070 20067
 
11 A.M. EDT
Weather:  Scattered high thin cirrus clouds, stratocumulus 
clouds, hazy
Temperature: 78F, Dew point: 68F,  Wind: SSW at 10 kts,
Wind: Variability in direction S-WSW  
Sea-level pressure: 30.10 inches Hg, steady
Visibility: 10 miles, hazy
BHO SA 1455 130 SCT 250 –SCT 10 192/78/68/2110/010/ 
SC ALQDS ACSL HAZY WND 17V25/ 8/541 52001
 
2 P.M. EDT
Weather: Scattered moderate cumulus, scattered altocumulus 
and cirrocumulus, thin broken cirrus, hazy  
Temperature: 82F, Dew point: 68F,  Wind: S at 10 kts, 
Wind: Variability in direction SSE-SW
Sea-level pressure: 30.05 inches Hg, falling 
Visibility: 15 miles
6-hourly max. temp. 85F
BHO SA 1755 36 SCT 130 SCT 220 SCT 250 –BKN 15 177/82/68/1910/005/
MDT CU ALQDS PTCHS ACSL/CCSL HAZY WND 15V23/ 
8/249 58017 10085 20070  
  
WEATHER SUMMARY FOR SUNDAY, JULY 6
 
TEMPERATURE (DEGREES F)
MAX.....81    NORMAL.....80
MIN.....65    NORMAL.....61
MEAN....73    NORMAL.....71
 
DEPARTURE FROM 30-YEAR NORMAL.............+2 
TOTAL DEPARTURE FOR THE MONTH.............+3 [+0.3 DEGREES/DAY]
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............20 S   AT  2:53 P.M.  
                   AEROVANE.............17 S   AT  2:53 P.M.  
                   ASOS.................18 S   AT  2:54 P.M.  
                   DAVIS................19 S   AT  2:53 P.M. 
FASTEST MILE FOR YESTERDAY..............13 SSW AT 11:50 P.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE...........14 SSW AT 11:53 P.M. 
MAXIMUM 2-MINUTE DAVIS AVERAGE..........14 SSW AT  9:21 P.M. 
                   AVERAGE.............6.8 S 
                   ASOS................7.5   
                   DAVIS...............6.1 S  [190 deg]
 
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..........1.40   DEPARTURE......+0.66  
                         ASOS..............1.43   
TOTAL PRECIPITATION FOR THE YEAR..........26.40   DEPARTURE......-0.01  
                         ASOS.............28.81 #
# Includes erroneous ASOS precipitation data on 2/13/08.
 
PRELIMINARY CLIMATE SUMMARY FOR JULY 2008 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane recording wind system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
7/1  83/66/75/+5/0.15/.../..     28 SSW   TSTM
7/2  84/61/73/+3/1.02/.../..     44 W     TSTM
7/3  85/63/74/+4/T/.../..        45 SW    Aero 44 MPH SW
7/4  69/59/64/-6/0.22/018/02     25 NE
7/5  70/62/66/-5/0.01/.../..     17 E
7/6  81/65/73/+2/0/.../..        20 S
 
7/7  morning low temp. 67F; our normal low is now 61F
 
NEW DAILY RECORDS FOR JULY 
None to date...       
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JULY 7
HIGH 97F IN 1908,1993
LOW 48F IN 1902
PRECIP 2.11 INCHES IN 1966
PEAK GUST 55 MPH NW IN 1989
 
RECORDS FOR JULY 8
HIGH 95F IN 1981
LOW 50F IN 1919
PRECIP 1.74 INCHES IN 1916
PEAK GUST 46e SSW IN 1941
 
TODAY'S REPORT PREPARED By: Robert Skilling