BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA   DAILY DISCUSSION AND CLIMATE SUMMARY TUESDAY, JUNE 3, 2008    ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED   THE MAY 2008 STATISTICS   Temp. Deg. F Av. Max. 64.9 Av. Min. 45.9 Mean     55.4 [-1.6] Mean     54.5 [corr. to 24 hours]  Heating units: 290 [+19] Season total: 5901 [-396] Cooling units:   3 [-18 ] Season total:    5 [-20 ] Max. temp: 80/27th Min. temp: 35/1st Total precip: 1.90 ins. [-1.89] Greatest in 24 hours: 0.96 [16-17] TSTM: 2 days Sunshine: 14308 mins. or 53% Uncorrected sunshine: 13812 mins. or 53% Wind: 12.4 MPH (uncorrected) Wind: 12.8 MPH (corrected) Prevailing direction: S @ 12% Peak gust: 47 MPH NNE on 13th Fastest mile: 34 MPH W on 19th, S on 26th   NOTES FOR MAY 2008   There aren't many notes for either May or Spring. The May mean station pressure of 29.14 inches is the 4th lowest on record and the March-May mean wind speed of 13.3 mph was the 5th lowest on record. Jan-May mean wind speed of 13.5 mph ties for 3rd lowest. Annual (corrected) mean temperature (Jan-May) of 39.6 deg F held on to 12th warmest place despite the cool weather in May.   May Lowest Mean Station Pressure (inches)   1) 29.10 in 1917 2) 29.13 in 1924    29.13 in 1926 4) 29.14 in 2008 5) 29.16 in 1927   Spring (Mar-May) Lowest Mean Wind Speed (mph)   1) 12.6 in 1995 2) 12.9 in 2003    12.9 in 2005 4) 13.1 in 2001 5) 13.3 in 2008   Today's observations:   8 A.M. EDT Weather: Scattered dense cirrus, thin broken cirrus Temperature: 65F, Dew point: 49F,  Wind: SW at 10 kts Sea-level pressure: 29.96 inches Hg, rising Visibility: 35 miles, 45 miles WNW  6-hourly minimum temperature: 58F BHO SA 1155 220 SCT 250 –BKN 300 –BKN 35 145/65/49/2310/996/ PTCHS DENS CI S-W CLR SKY NE-SE LGT HZ VSBY WNW 45/ 8/002 51007 10066 20058   11 A.M. EDT Weather: Thin broken cirrus  Temperature: 76F, Dew point: 50F,  Wind: WSW at 12G18 kts Wind: variable in direction SSW-W  Sea-level pressure: 29.98 inches Hg, rising Visibility: 40 miles, 50 miles WNW, light haze BHO SA 1455 250 –BKN 300 –BKN 40 152/76/50/2412G18/998/ FEW LWR CI VSBY WNW 50 LGT HZ WND 21V27/ 8/001 53007   2 P.M. EDT Weather: Broken dense cirrus, overcast cirrus, few cumulus SW-N, moderate cumulus NW, overcast partly thin all parts of the sky, and breaks in overcast to the W-N Temperature: 81F, Dew point: 45F,  Wind: S at 14 kts Wind: variable in direction SSE-WSW  Sea-level pressure: 29.93 inches Hg, falling Visibility: 35 miles, 45 miles WNW, light haze  6-hourly max. temp. 81F  BHO SA 1755 E220 BKN 250 OVC 35 134/81/45/1814/993/ FEW CU SW-N MDT CU NW DENS CI ALQDS FEW CC/CCSL BINOVC W-N OVC PTLY THN ALQDS VSBY WNW 45 LGT HZ WND 16V24/ 8/202 58018 10081 20065   WEATHER SUMMARY FOR MONDAY, JUNE 2   TEMPERATURE (DEGREES F) MAX.....76    NORMAL.....72 MIN.....53    NORMAL.....52 MEAN....65    NORMAL.....62   DEPARTURE FROM 30-YEAR NORMAL............+3  TOTAL DEPARTURE FOR THE MONTH............+10   HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY.............0  DEPARTURE........-5 TOTAL HEATING UNITS FOR THE MONTH.............0  DEPARTURE.......-10 TOTAL HEATING UNITS FOR THE SEASON.........5901  DEPARTURE......-406 TOTAL HEATING UNITS LAST SEASON TO DATE....5831  DIFFERENCE......+70    PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY............28 WNW AT 10:15 A.M.                            AEROVANE.............27 WNW AT 10:15 A.M.                       ASOS.................26 WNW AT 10:15 A.M.                           DAVIS................27 WNW AT 10:15 A.M.           FASTEST MILE FOR YESTERDAY..............16 W   AT  1:15 P.M. *    MAXIMUM 2-MINUTE ASOS AVERAGE...........17 W   AT  1:15 P.M.      MAXIMUM 2-MINUTE DAVIS AVERAGE..........19 W   AT 12:14 P.M.                              AVERAGE............ 9.9 W                    ASOS................9.8                         DAVIS..............10.4 W [270 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..........0.00   DEPARTURE......-0.26                          ASOS..............0.00  TOTAL PRECIPITATION FOR THE YEAR..........22.66   DEPARTURE......+0.66                          ASOS.............25.04 # # Includes erroneous ASOS precipitation data on 2/13/08.   PRELIMINARY CLIMATE SUMMARY FOR MAY 2008 CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane recording wind system when significant TSTM: Thunderstorm day ....: Data not yet available, records not finalized   5/1  60/35/48/-4/0/786/93        30 W    Aero 28 MPH W 5/2  48/42/45/-7/0.07/000/00     21 ENE 5/3  43/41/42/-11/0.09/000/00    25 E    5/4  50/42/46/-7/0.17/000/00     27 E 5/5  69/40/55/+2/0/752/88        24 ESE  5/6  74/46/60/+6/0/686/80        25 W 5/7  75/48/62/+8/0/722/84        29 S 5/8  75/54/65/+11/0.08/172/20    42 W    Aero 42 MPH W 5/9  56/43/50/-5/0.26/000/00     30 NE 5/10 57/44/51/-4/T/407/47        35 NNE  5/11 58/41/50/-5/0/747/86        24 ENE  5/12 47/42/45/-11/0/017/02       43 NNE  Aero 43 MPH NNE 5/13 63/43/53/-3/0/812/93        47 NNE  Aero 50 MPH NNE 5/14 64/47/56/-1/0/788/90        23 ENE 5/15 67/47/57/0/T/009/01         22 S  5/16 59/45/52/-5/0.49/009/01     21 ENE 5/17 72/46/59/+2/0.47/449/51     33 W 5/18 71/50/61/+3/0.02/494/56     30 S 5/19 59/44/52/-6/0/566/64        46 W    Aero 44 MPH W   5/20 64/42/53/-5/0.01/461/52     29 S 5/21 69/46/58/-1/T/524/59        35 WSW  Aero 32 MPH WSW 5/22 58/45/52/-7/0.01/089/10     26 WSW 5/23 70/43/57/-2/T/749/84        41 W    Aero 40 MPH W 5/24 69/47/58/-2/T/465/52        32 WNW 5/25 75/50/63/+3/0/859/95        29 SE   5/26 78/52/65/+5/T/771/86        42 S 5/27 80/53/67/+6/0.15/351/39     35 NNW  TSTM  5/28 66/47/57/-4/0/873/97        35 NW   Aero 32 MPH NW 5/29 76/45/61/0/0/874/97         33 W 5/30 69/55/62/+1/0/695/77        29 SSE 5/31 73/59/66/+4/0.08/181/20     35 SW   Aero 33 SW TSTM   6/1  79/58/69/+7/0/.../..        32 W  6/2  76/53/65/+3/0/.../..        28 WNW   6/3  morning low temp. 58F; our normal low is now 53F    NO NEW DAILY RECORDS FOR MAY 2008   DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR JUNE 3 HIGH 98F IN 1919 LOW  38F IN 1929 PRECIP 2.40 INS 2006 PEAK GUST 47 MPH NW IN 1998   RECORDS FOR JUNE 4 HIGH 99F IN 1919 [Record for month] LOW 41F IN 1915,1926 PRECIP 1.52 INS IN 2007 PEAK GUST 48 MPH SSE IN 1983   TODAY'S REPORT PREPARED By: Robert Skilling/Mike Iacono