BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JUNE 9, 2008    
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED
 
HIGH TEMPERATURE IN 90'S SETTING NEW RECORD TODAY
OFFICIAL HEAT WAVE...TEMPERATURE SOARS PAST 90 DEGREES AGAIN
MINIMUM TEMPERATURE OF 72 DEGREES EQUALS OUR RECORD 
HIGH MINIMUM FOR JUNE 8TH SET IN 1999.
 
Today's maximum temperature has reached 93 degrees setting
a new record for this date. The previous record was 92 set
in 1984. 
 
The temperature reached 90 degrees for the third consecutive
day today making this early season hot spell an official 
heat wave.  Earlier waves have occurred, however, including 
the earliest one on record from May 2-4, 2001. Also in our 
records is a 4-day period in the 90's from May 28-31, 1929. 
Also, in June 1984, from the 8th through the 11th, an official
4-day heat wave was recorded. See updated list below:
 
Earliest Heat Waves
 
1) May 2-4, 2001 (3-day)
2) May 28-31, 1929 (4-day)
3) Jun 3-5, 1919 (3-day)
4) Jun 3-6, 1925 (4-day)
5) Jun 7-9, 2008 (ongoing)
6) Jun 8-11, 1984 (4-day)
7) Jun 13-15, 1956 (3-day)
8) Jun 13-15, 1988 (3-day)

 
Today's observations:
 
8 A.M. EDT
Weather: Broken altocumulus, clearing south through west
Temperature: 76F, Dew point: 70F,  Wind: W at 8 kts
Sea-level pressure: 29.83 inches Hg, falling  
Visibility: 12 miles, hazy
6-hourly minimum temperature: 71F
24-hour rainfall: 0.00 in
BHO SA 1155 E130 BKN 12 102/76/70/2808/983/ CLR SKY S-W/SKY
CLRG THN K ALF ALG/ABV HRZN SW-NW HAZY ALQDS/ 8/070 50015 10076 20071
 
11 A.M. EDT
Weather: Clear, cumulus forming, hazy, pollen reducing visibility
Temperature: 87F, Dew point: 68F,  Wind: W at 12G19 kts,
Wind: direction variability WSW-WNW 
Sea-level pressure: 29.80 inches Hg, falling
Visibility: 15 miles, hazy, 20 miles WNW 
BHO SA 1455 CLR 15 093/87/68/2612G19/980/ CUFRA/CU FRMG ALQDS
VSBY WNW 20 HAZY HZ INCRSNG LIKELY POLLEN INCSNG WND 24V30/ 
8/100 58009
 
2 P.M. EDT
Weather: Clear, cumulus, few moderate cumulus
Temperature: 92F, Dew point: 66F,  Wind: W at 10G22 kts
Wind: direction variability WSW-WNW  
Sea-level pressure: 29.80 inches Hg, steady
Visibility: 25 miles, 15 NE-SE 
6-hourly max. temp. 93F   
BHO SA 1755 CLR 25 092/92/66/2710G22/980/
CU/FEW MDT CU ALQDS VSBY NE-SE 15 HAZY ALQDS WND 24V30/
8/200 56001 10093 20076

WEATHER SUMMARY FOR SUNDAY, JUNE 8
 
TEMPERATURE (DEGREES F)
MAX.....91    NORMAL.....74
MIN.....72    NORMAL.....54
MEAN....82    NORMAL.....64
 
DEPARTURE FROM 30-YEAR NORMAL............+18  
TOTAL DEPARTURE FOR THE MONTH............+25 [+2.9 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY.............0  DEPARTURE........-3
TOTAL HEATING UNITS FOR THE MONTH............27  DEPARTURE........-6 
TOTAL HEATING UNITS FOR THE SEASON.........5928  DEPARTURE......-402
TOTAL HEATING UNITS LAST SEASON TO DATE....5858  DIFFERENCE......+70  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............31 WSW AT 5:59 P.M. 
                   AEROVANE.............29 WSW AT 5:59 P.M.
                   ASOS.................30 WSW AT 5:57 P.M. 
                   DAVIS................31 WSW AT 4:42 P.M. 
FASTEST MILE FOR YESTERDAY..............22 WSW AT 6:00 P.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE...........22 WSW AT 6:00 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE..........23 WSW AT 4:11 P.M. 
                   AVERAGE........... 13.4 W
                   ASOS...............13.3       
                   DAVIS..............13.6 W  [260 deg]  
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00   DEPARTURE......-0.13  
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........0.84   DEPARTURE......-0.27
                         ASOS..............0.85   
TOTAL PRECIPITATION FOR THE YEAR..........23.50   DEPARTURE......+0.72
                         ASOS.............25.89 #
# Includes erroneous ASOS precipitation data on 2/13/08.
 
PRELIMINARY CLIMATE SUMMARY FOR JUNE 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
....: Data not yet available, records not finalized
  
6/1  79/58/69/+7/0/.../..        32 W  
6/2  76/53/65/+3/0/.../..        28 WNW
6/3  84/58/71/+9/0/.../..        28 S 
6/4  66/54/60/-3/.../000/00      25 SSW   Aero 23 MPH SSW
6/5  55/51/53/-10/.../000/00     31 N     Aero 28 MPH N
6/6  59/51/55/-8/.../000/00      21 SSE
6/7  91/55/73/+9/0.07/../.../..  45 SW    Aero 46 MPH SW TSTM 
6/8  91/72/82/+18/0/.../.. *     31 WSW
 
6/9  morning low temp. 71F; normal low is now 54F
 
* minimum temp. of 72 equaled record high minimum for the date
 
NEW DAILY RECORDS FOR JUNE TO DATE..
 
6/8 - MINIMUM TEMPERATURE OF 72 DEGREES EQUALED 
      RECORD HIGH MINIMUM SET IN 1999.  
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JUNE 9
HIGH 92F IN 1984
LOW 40F IN 1980
PRECIP 2.08 INCHES IN 1931
PEAK GUST 67 MPH NW IN 1973
 
RECORDS FOR JUNE 10
HIGH 92F IN 1967,1974,1984
LOW 42F IN 1913,1920
PRECIP 2.51 INCHES IN 1931
PEAK GUST 60e MPH NW IN 1941
 
TODAY'S REPORT PREPARED By: Robert Skilling/Mike Iacono