BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, AUGUST 1, 2008     
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED  
 
Today's observations:
 
8 A.M. EDT
Weather: Broken stratus, broken cirrus
Temperature: 68F, Dew point: 67F,  Wind: NW at 5 kts 
Sea-level pressure: 29.68 inches Hg, rising
Visibility: 5 miles, fog
6-hourly minimum temperature: 66F 
24-hourly rainfall: 0.03 inches
BHO SA 1155 E8 BKN 250 BKN 5F 052/68/67/3105/968/ 
8/601 51016 MANUAL 70003 ASOS 70002 10068 20066
 
11 A.M. EDT
Weather: Scattered stratus/stratocumulus, few 
moderate cumulus tops forming, broken cirrus 
Temperature: 76F, Dew point: 65F,  Wind: W at 8 kts,
Wind: direction variability SW-NW
Sea-level pressure: 29.69 inches Hg, rising
Visibility: 15 miles, hazy
BHO SA 1455 22 SCT E250 BKN 15 055/76/65/2708/969/ 
FEW SC MDT CUFRM TOPS HAZY WND 23V31/ 8/201 53004
 
2 P.M. EDT
Weather: Scattered cumulus, few moderate cumulus, 
broken cirrus
Temperature: 82F, Dew point: 64F,  Wind: W at 7 kts, 
Wind: direction variability SW-NNW
Sea-level pressure: 29.69 inches Hg, falling
Visibility: 40 miles, hazy
6-hour max. temp. 82F 
BHO SA 175 35 SCT E250 BKN 40 053/82/64/2707/969/ 
FEW MDT CU ALQDS HAZY WND 22V34/ 8/201 58002 10082 20068
 
WEATHER SUMMARY FOR THURSDAY, JULY 31
 
TEMPERATURE (DEGREES F)
MAX.....86    NORMAL.....81
MIN.....67    NORMAL.....63
MEAN....77    NORMAL.....72

DEPARTURE FROM 30-YEAR NORMAL............+ 5 
TOTAL DEPARTURE FOR THE MONTH............+83 [+2.5 DEGREES/DAY]
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............22 SSE AT  2:17 P.M. *    
                   AEROVANE.............23 SSE AT  2:17 P.M.     
                   ASOS.................22 S   AT  2:17 P.M.     
                   DAVIS................25 SSW AT 12:53 P.M.        
FASTEST MILE FOR YESTERDAY..............15 SSE AT  2:17 P.M. * 
MAXIMUM 2-MINUTE ASOS AVERAGE...........16 S   AT  2:19 P.M.     
MAXIMUM 2-MINUTE DAVIS AVERAGE..........17 SSE AT 10:05 A.M.     
                   AVERAGE.............8.6 S    
                   ASOS................8.8      
                   DAVIS...............8.0 S [176 deg] 
* last of several occurrences...
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.03   DEPARTURE......-0.09  
                         ASOS..............0.02
TOTAL PRECIPITATION FOR THE MONTH..........5.93   DEPARTURE......+2.19  
                         ASOS..............6.05   
TOTAL PRECIPITATION FOR THE YEAR..........30.93   DEPARTURE......+1.52   
                         ASOS.............33.43 #
# 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/+5/0.15/411/45     28 SSW   TSTM
7/2  84/61/73/+3/1.02/593/65     44 W     TSTM Small hail
7/3  85/63/74/+4/T/793/87        45 SW    Aero 44 MPH SW
7/4  69/59/64/-6/0.22/018/02     25 NE
7/5  70/62/66/-5/0.01/000/00     17 E
7/6  81/65/73/+2/0/245/27        20 S
7/7  86/67/77/+6/0/563/62        21 S
7/8  89/69/79/+8/0/753/83        30 SSE  
7/9  88/70/79/+8/T/734/81        36 SSW   TSTM Aero 35 MPH SSW
7/10 82/65/74/+3/T/887/98        28 W     Aero 29 MPH W
7/11 83/61/72/0/0/759/84         17 NW   
7/12 82/65/74/+2/0/631/70        28 S  
7/13 81/66/74/+2/0/784/87        38 S     Aero 40 MPH S  
7/14 80/67/74/+2/0.36/468/52     23 W     TSTM 
7/15 87/67/77/+5/0/799/89        22 SSW
7/16 88/66/77/+5/0/869/97        22 SSE
7/17 86/68/77/+5/0/805/90        20 SW   
7/18 91/66/79/+7/0.03/679/76     23 SE    TSTM
7/19 93/66/80/+8/T/589/66        35 WSW   Aero 35 WSW
7/20 88/71/80/+8/0.18/178/20     27 NNW   TSTM  
7/21 84/65/74/+3/0.07/480/54     25 NNE 
7/22 78/63/71/-1/0.13/496/56     21 WSW
7/23 70/63/67/-5/0.75/0/0        28 NE    TSTM 
7/24 81/67/74/+1/2.27/044/05     43 S     TSTM Aero 47 MPH S
7/25 82/65/74/+1/0/670/76        23 SSE
7/26 85/65/75/+3/0/800/91        30 S 
7/27 78/61/70/-2/0.66/149/17     43 WSW   Aero 44 MPH WSW TSTM 
7/28 83/61/72/0/0/770/88         23 WSW 
7/29 84/66/75/+3/0/777/89        24 W 
7/30 84/65/75/+3/0/583/67        21 SW    Aero 19 MPH SW
7/31 86/67/77/+5/0.08/243/54     22 SSE
 
8/1 our morning low temp. 66F; the normal low is now 63F 
   
NEW DAILY RECORDS FOR JULY
 
7/24 - PEAK GUST OF 43 MPH FROM THE SOUTH IS NEW REOCRD FOR THE
       DATE; PREVIOUS RECORD 41 MPH S IN 1975, 41e MPH WSW IN 1977
7/24 - DAILY PRECIPITATION 2.27 INCHES IS NEW RECORD FOR THE DATE;
       PREVIOUS RECORD WAS 2.21 INCHES IN 1988
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR AUGUST 1
HIGH 97F IN 1917
LOW 49F IN 1891
PRECIP 3.61 INCHES IN 1927
PEAK GUST 41 MPH NNW IN 1985
 
RECORDS FOR AUGUST 2
HIGH 101F IN 1975 [STATION RECORD MAXIMUM - Tied with 8/10/1949]
LOW 50F IN 1929, 1947
PRECIP 1.59 INCHES IN 1946
PEAK GUST 50 MPH SW IN 2006
 
TODAY'S REPORT PREPARED By: Stephanie Radner