BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA   DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, JUNE 19, 2008    ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED   Today's observations:   8 A.M. EDT Weather: Broken moderate cumulus, broken cirrus   Temperature: 60F, Dew point: 54F,  Wind: S at 6 kts, Wind: Light and variable Sea-level pressure: 29.86 inches Hg, rising    Visibility: 20 miles 6-hourly minimum temperature: 56F  24-hourly rainfall: 0.01 in.   BHO SA 1155 E16 BKN 250 BKN 20 113/60/54/1906/986/ MDT CU ALQDS VIRGA DSNT SW-N WND LGT AND VRB/ 8/201 51013 MANUAL 70001 10060 20056   11 A.M. EDT Weather: Broken moderate cumulus Temperature: 67F, Dew point: 55F,  Wind: WSW at 6 kts, Wind: light and variable Sea-level pressure: 29.88 inches Hg, rising Visibility: 60 miles  BHO SA 1455 E25 BKN 60 119/67/55/2406/988/ WND LGT AND VRB/ 8/200 51006   2 P.M. EDT Weather: Broken moderate cumulus Temperature: 74F, Dew point: 51F,  Wind: WSW at 5 kts Wind: light and variable Sea-level pressure: 29.88 inches Hg, falling Visibility: 80 miles    6-hourly max. temperature: 74F BHO SA 1755 E50 BKN 65 BKN 80 117/74/51/2405/988/ WND LGT AND VRB/ 8/200 58002 10074 20060   WEATHER SUMMARY FOR WEDNESDAY, JUNE 18   TEMPERATURE (DEGREES F) MAX.....71    NORMAL.....76 MIN.....52    NORMAL.....57 MEAN....62    NORMAL.....66   DEPARTURE FROM 30-YEAR NORMAL.............-4  TOTAL DEPARTURE FOR THE MONTH............+74 [+3.9 DEGREES/DAY]   HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY.............3  DEPARTURE........+1 TOTAL HEATING UNITS FOR THE MONTH............41  DEPARTURE.......-17 TOTAL HEATING UNITS FOR THE SEASON.........5942  DEPARTURE......-413 TOTAL HEATING UNITS LAST SEASON TO DATE....5902  DIFFERENCE......+40   PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY............26 S   AT 6:14 P.M.                        AEROVANE.............26 S   AT 6:16 P.M.                       ASOS.................26 SSW AT 6:18 P.M.                         DAVIS................30 S   AT 6:18 P.M.   FASTEST MILE FOR YESTERDAY..............23 S   AT 6:16 P.M.     MAXIMUM 2-MINUTE ASOS AVERAGE...........22 SSW AT 6:18 P.M.     MAXIMUM 2-MINUTE DAVIS AVERAGE..........22 S   AT 6:18 P.M.                       AVERAGE.............10.5 WSW                     ASOS.................9.9                      DAVIS................9.9 WSW [232 deg]   PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.01   DEPARTURE......-0.12                           ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........1.90   DEPARTURE......-0.47                           ASOS..............1.93   TOTAL PRECIPITATION FOR THE YEAR..........24.56   DEPARTURE......+0.45                           ASOS.............26.97 # # 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/.../..     26 S   6/19 morning low temp. 56F; our normal low is now 57F   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 19 HIGH 92F IN 1923 LOW 40F IN 1920 PRECIP 3.92 INS 1922 PEAK GUST 66e MPH NW IN 1940   RECORDS FOR JUNE 20 HIGH 94F IN 1953 LOW 41F IN 1918 PRECIP 2.62 INS 1945 PEAK GUST 63 MPH NE IN 1967   TODAY'S REPORT PREPARED By: Stephanie Radner