BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, AUGUST 15, 2008     
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED 
 
Today's observations:
 
8 A.M. EDT
Weather:  Scattered cumulus, broken altocumulus
Temperature: 65F, Dew point: 59F,  Wind: WNW at 1 kt (estimated)
Sea-level pressure: 29.98 inches Hg, rising
Visibility: 25 miles, W-NW 40 miles 
6-hourly minimum temperature: 63F 
24-hourly rainfall: Trace
BHO SA 1155 55 SCT E120 BKN 25 154/65/59/E2901/998/ 
LONE MDT CU DSNT S DRK K LYR W-NNE VSBY W-NW 40 
WND LGT AND VRB/ 8/230 51015 10065 20063
 
11 A.M. EDT
Weather: Broken stratocumulus, broken altocumulus
Temperature: 70F, Dew point: 62F, Wind: E at 2 kts (estimated)
Sea-level pressure: 30.01 inches Hg, rising
Visibility: 20 miles, light haze
3-hourly rainfall: Trace
BHO SA 1455 E45 BKN 110 BKN 20 161/70/62/E1002/001/ LGT HZ 
WND LGT AND VRB/ 8/530 51007 MANUAL 6000/
 
2 P.M. EDT
Weather: Broken cumulus/moderate cumulus, overcast altostratus
Temperature: 78F, Dew point: 63F, Wind: SW at 6 kts
Sea-level pressure: 29.99 inches Hg, falling
Visibility: 15 miles, light haze
6-hourly max. temp. 78F
6-hourly rainfall: Trace 
BHO SA 1755 E50 BKN E140 OVC 15 157/78/63/2206/999/ MDT CU ALQDS 
BINOVC LGT HZ WND LGT AND VRB/ 8/207 58004 MANUAL 6000/ 10078 20065
 
WEATHER SUMMARY FOR THURSDAY, AUGUST 14
 
TEMPERATURE (DEGREES F)
MAX.....78    NORMAL.....80
MIN.....63    NORMAL.....61
MEAN....71    NORMAL.....70
 
DEPARTURE FROM 30-YEAR NORMAL.............+1 
TOTAL DEPARTURE FOR THE MONTH............-35 [-2.7 DEGREES/DAY]
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............21 NNW AT  3:27 P.M.    
                   AEROVANE.............19 NNW AT  3:27 P.M.    
                   ASOS.................20 NNW AT  3:27 P.M.    
                   DAVIS................19 NNW AT  3:26 P.M.         
FASTEST MILE FOR YESTERDAY..............13 WSW AT 11:46 P.M. *    
MAXIMUM 2-MINUTE ASOS AVERAGE...........14 W   AT 11:47 P.M.     
MAXIMUM 2-MINUTE DAVIS AVERAGE..........16 SSW AT  7:32 P.M.    
                   AVERAGE.............6.5 NNE  
                   ASOS................6.8
                   DAVIS...............6.7 SW [232 deg] 
* last of several occurrences
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M...Trace   DEPARTURE......-0.13  
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........3.12   DEPARTURE......+1.33  
                         ASOS..............3.18   
TOTAL PRECIPITATION FOR THE YEAR..........34.05   DEPARTURE......+2.85   
                         ASOS.............36.61 #
# Includes erroneous ASOS precipitation data on 2/13/08.
 
PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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
 
8/1  85/66/76/+4/0.00/719/83     16 WSW    
8/2  80/65/73/+1/0.80/346/40     21 NW    TSTM 
8/3  81/61/71/-1/0.56/422/49     52 NW    Aero 55 MPH NW TSTM
8/4  79/60/70/-2/0.01/731/85     25 WNW  
8/5  72/63/68/-4/T/377/44        21 NE  
8/6  64/60/62/-10/0.55/000/00    31 ESE  
8/7  72/61/67/-4/.../009/01      21 SW    TSTM
8/8  77/59/68/-3/.../442/52      23 ENE   TSTM
8/9  78/59/69/-2/0/534/63        16 SSE
8/10 80/61/71/0/0.08/474/56      24 ESE   TSTM 
8/11 67/61/64/-7/0.06/025/03     25 E 
8/12 72/58/65/-6/0.18/.../..     21 NNW   TSTM 
8/13 79/59/69/-2/0/.../..        18 WSW
8/14 78/63/71/+1/T/.../..        21 NNW   
 
8/15 morning low temp. 63F; our normal low is now 61F
      
NEW DAILY RECORDS FOR AUGUST
 
8/3 - PEAK GUST OF 52 MPH FROM THE NW IS NEW RECORD FOR THE
      DATE; PREVIOUS RECORD 41 MPH NE IN 1964
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR AUGUST 15
HIGH 95F IN 1928
LOW 47F IN 1964
PRECIP 1.55 INCHES IN 2004 
PEAK GUST 44e MPH S IN 1941
 
RECORDS FOR AUGUST 16
HIGH 95F IN 1944
LOW 50F IN 1927
PRECIP 1.47 INCHES IN 1926
PEAK GUST 45e MPH N IN 1951
 
TODAY'S REPORT PREPARED By: Stephanie Radner