BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA   DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, JUNE 26, 2008    ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED    Today's observations:   8 A.M. EDT Weather: Broken altocumulus, broken cirrus, patches of dense cirrus Temperature: 70F, Dew point: 60F,  Wind: S at 10 kts Sea-level pressure: 29.94 inches Hg, falling Visibility: 20 miles, hazy 6-hourly minimum temperature: 62F    24-hourly rainfall: 0.00 in. BHO SA 1155 E130 BKN 250 BKN 20 139/70/60/1910/994/ PTCHS DENS CI HAZY/ 8/032 58010 10070 20062   11 A.M. EDT Weather: Broken altocumulus, overcast cirrus, patches of dense cirrus, hazy Temperature: 78F, Dew point: 61F,  Wind: SW at 8 kts Sea-level pressure: 29.92 inches Hg, falling Visibility: 15 miles, hazy      BHO SA 1455 E140 BKN 220 OVC 15 133/78/61/2208/992/ PTCHS DENS CI THN SPTS IOVC HAZY/ 8/072 56008   2 P.M. EDT Weather: Overcast altocumulus/altostratus, light rain shower Temperature: 73F, Dew point: 63F,  Wind: S at 7 kts Sea-level pressure: 29.89 inches Hg, falling Visibility: 15 miles, hazy 6-hourly maximum temperature: 79F 6-hourly precipitation: trace  BHO SA 1755 E110 BKN 140 OVC 15RW- 122/73/63/1907/989/ SUN DMLY VSBL HAZY RB50/ 8/07/ 56011 MANUAL 6000/ 10079 20073   WEATHER SUMMARY FOR WEDNESDAY, JUNE 25   TEMPERATURE (DEGREES F) MAX.....81    NORMAL.....78 MIN.....58    NORMAL.....58 MEAN....70    NORMAL.....68   DEPARTURE FROM 30-YEAR NORMAL.............+2  TOTAL DEPARTURE FOR THE MONTH............+86 [+3.2 DEGREES/DAY]   HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY.............0  DEPARTURE........-1 TOTAL HEATING UNITS FOR THE MONTH............41  DEPARTURE.......-28 TOTAL HEATING UNITS FOR THE SEASON.........5942  DEPARTURE......-424 TOTAL HEATING UNITS LAST SEASON TO DATE....5911  DIFFERENCE......+31   PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY............25 SW  AT 4:39 P.M.*                          AEROVANE.............24 SW  AT 4:35 P.M.                        ASOS.................25 WSW AT 4:35 P.M.                            DAVIS................26 SW  AT 4:35 P.M.     FASTEST MILE FOR YESTERDAY..............18 WSW AT 4:46 P.M.*    MAXIMUM 2-MINUTE ASOS AVERAGE...........18 W   AT 4:47 P.M.        MAXIMUM 2-MINUTE DAVIS AVERAGE..........21 W   AT 4:40 P.M.                             AVERAGE............ 11.2 W                    ASOS................10.7                         DAVIS...............11.9 W  [264 deg] * last of several occurrences   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..........2.28   DEPARTURE......-1.00                           ASOS..............2.30   TOTAL PRECIPITATION FOR THE YEAR..........24.94   DEPARTURE......-0.08                           ASOS.............27.34 # # 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 (thunder heard some time during day) ....: Data not yet available, records not finalized   6/1  79/58/69/+7/0/833/92        32 W  6/2  76/53/65/+3/0/834/92        28 WNW 6/3  84/58/71/+9/0/707/78        28 S 6/4  66/54/60/-3/0.53/000/00     25 SSW   Aero 23 MPH SSW 6/5  55/51/53/-10/0.11/000/00    31 N     Aero 28 MPH N 6/6  59/51/55/-8/0.13/000/00     21 SSE 6/7  91/55/73/+9/0.07/575/63     45 SW    Aero 46 MPH SW TSTM  6/8  91/72/82/+18/0/703/77       31 WSW 6/9  94/71/83/+19/0/794/87       29 W 6/10 98/72/85/+21/0/876/97       58 W     Aero 58 MPH W 6/11 85/68/77/+12/0/804/88       28 W     Aero 26 MPH W 6/12 78/60/69/+4/0/888/97        28 NW    Aero 26 MPH NW 6/13 82/55/69/+4/0/888/97        21 NW 6/14 78/62/70/+5/0.08/687/75     21 NW    TSTM 6/15 63/54/59/-7/0.42/000/00     20 E     6/16 63/56/60/-6/0.55/000/00     25 SSE   TSTM  6/17 77/57/67/+1/0/587/64        25 S     TSTM 6/18 71/52/62/-4/0.01/642/70     27 S 6/19 75/56/66/-1/0/752/82        23 S     Aero 20 MPH S 6/20 78/57/68/+1/0.20/459/50     27 W     TSTM 6/21 81/59/70/+3/0.00/826/90     25 SSE 6/22 80/61/71/+4/0.01/266/29     38 S     Aero 37 MPH S 6/23 76/65/71/+3/0.02/009/01     23 S     TSTM 6/24 77/58/68/0/0.15/.../..      40 WNW   Aero 39 MPH WNW TSTM 6/25 81/58/70/+2/0/.../..        25 W     Aero 24 MPH SW   6/26 morning low temp: 62F; our normal low is now 59F   NEW DAILY RECORDS FOR JUNE TO DATE....   6/8 -  MINIMUM TEMPERATURE OF 72F EQUALED        RECORD HIGH MINIMUM SET IN 1999.  6/9 -  MAXIMUM TEMPERATURE OF 94F IS NEW RECORD FOR        THE DATE, PREVIOUS RECORD 92F IN 1984 6/10 - MAXIMUM TEMPERATURE OF 98F IS NEW RECORD FOR        THE DATE, PREVIOUS RECORD 92F IN 1967,1974,1984        MINIMUM TEMPERATURE OF 72F IS NEW RECORD HIGH        MINIMUM FOR DATE, PREVIOUS RECORD WAS 71F IN 1984 6/11 - MINIMUM TEMPERATURE OF 68F EQUALED        RECORD HIGH MINIMUM SET IN 1973, 1984.         DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR JUNE 26 HIGH 96F IN 1952 LOW 45F IN 1986 PRECIP 1.52 INS IN 1945 PEAK GUST 48 MPH N IN 1998   RECORDS FOR JUNE 27 HIGH 93F IN 1999, 2007 LOW 46F IN 1897 PRECIP 1.72 INS IN 1938 PEAK GUST 55e N IN 1945   TODAY'S REPORT PREPARED By: Stephanie Radner