BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY CLIMATE SUMMARY THURSDAY, JUNE 24, 2004 ALL TIMES ARE IN EASTERN DAYLIGHT TIME [unless otherwise noted] TODAY'S DISCUSSION AT 2 P.M. Our new weighing type precipitation gage has been installed as of this morning for ASOS. The tipping bucket gage was removed and replaced by the new "state of art" precipitation gage. Now, we just await some rainfall to test it out. TODAY'S OBS... 6/24/2004 THU 8 a.m. clear with few high clouds southeast to southwest visibility 60 miles but 80 northwest and only 15 miles north-north-northeast; temp. 68; dewpoint 52; wind north at 05 mph; inversion present and dissipating; six hourly minimum temp. 62 deg. BHO SA 1155 CLR 60 181/68/52/3504/006/ CI/FEW DENSE CI DSNT ESE-SW THN K LYR ALG HRZN NW-NE DRK K LYR OVR CTY N-NE INVSN DSSPTNG VSBY N-NNE 15 NW 80/ 8/002 53015 10068 20062 11 a.m. scattered cumulus clouds except within seabreeze range to our north through east; visibility 30 miles xcept 15 miles northwest through east; and 50 miles to our west-northwest; temp. 75; dewpoint 59; wind northeast at 09 mph (the seabreeze is blowing)... BHO SA 1455 55 SCT 30 186/75/59/0508/008/ CU FRMG XCPT N-E FEW MDT CU SW-W K LYR BLO INVSN NW-NE ESTMTD TOP OVR CTY N 13 HND VSBY NW-E 15 WNW 50/ 8/200 51005 2 p.m. scattered cumulus clouds with visibility 20 miles but 10 miles north through east fog bank along shore northeast hazy all directions; temp. 74; dewpoint 60; wind e at 09 mph; six hourly maximum temp. 76 BHO SA 1755 65 SCT 20 187/74/60/0809/008/ FEW MDT CU FG BNK ALG SHR NE THN K LYR TOP ESTMTD 12 HND N-E HAZY VSBY N-E 10 HAZY ALQDS/ 8/200 53001 10076 20068 WEATHER SUMMARY FOR WEDNESDAY JUNE 23: TIMES: EASTERN DAYLIGHT TIME TEMPERATURE (DEGREES F) MAX.....82 NORMAL.....77 Hazen shelter: 81.8... @ 3:35 p.m. MIN.....63 NORMAL.....58 Hazen shelter: 63.0... @ 5:58 a.m. MEAN....73 NORMAL.....68 DEPARTURE FROM 30-YEAR NORMAL...... + 5 TOTAL DEPARTURE FOR THE MONTH...... - 10 JUNE IS AVERAGING NEAR NORMAL DAILY....0.6 DEGREE COOLER THAN NORMAL HEATING DEGREE DAYS TOTAL HEATING DEGREE DAYS FOR YESTERDAY....... 0 DEPARTURE.....- 1 TOTAL HEATING DEGREE DAYS FOR THE MONTH...... 77 DEPARTURE.... +10 TOTAL HEATING DEGREE DAYS FOR THE SEASON....6290 DEPARTURE.....-74 TOTAL HEATING DEGREE DAYS FOR LAST SEASON...6890 DIFFERENCE...-600 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........25 WNW AT 10:23 a.m. AEROVANE.........30 WNW AT 10:23 a.m. ASOS.............25 WNW AT 10:24 a.m. DAVIS............30 WNW AT 10:19 a.m. MAXIMUM 2-MINUTE ASOS AVERAGE.......22 NW AT 10:24 a.m. OUR AVERAGE WIND SPEED/DIRECTION.... 11.1 WNW ASOS AVERAGE WIND SPEED............. 11.1 WNW [290 deg ] DAVIS AVERAGE WIND SPEED/DIRECTION.. 12.0 WNW [300 deg ] PRECIPITATION (INCHES) THROUGH THIS MORNING (EDT) TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....0.00 DEPARTURE...-0.13 ASOS..............0.02 [tipped by tech yesterday ] TOTAL PRECIPITATION FOR THE MONTH..........1.29 DEPARTURE....-1.73 ASOS..............1.27 [ 0.02 tipped by tech yesterday ] TOTAL PRECIPITATION FOR THE YEAR..........22.21 DEPARTURE....-2.55 ASOS.............20.52 [ 0.02 tipped in by tech yesterday ] PRELIMINARY CLIMATE SUMMARY FOR JUNE 2004......CALENDAR DAY DATA DATA REPORTED: 24 HOUR PERIODS ENDING MIDNIGHT EST 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 6/1 51/46/49/-13/0.32/000/00 28 MPH E 6/2 74/46/60/-2/0.08/254/28 31 MPH WNW TSTM 6/3 72/50/61/-1/0.21/463/51 40 MPH NW TSTM *Aerovane 46 MPH NW 6/4 72/47/60/-3/0/835/92 21 MPH S 6/5 69/50/60/-3/0/501/55 35 MPH E 6/6 55/48/52/-11/0.32/000/00 31 MPH NE 6/7 73/48/61/-3/T/428/47 21 MPH S 6/8 87/57/72/+8/0/793/87 29 MPH SSW 6/9 90/67/79/+15/0.23/813/89 29 MPH SW TSTM 6/10 69/54/62/-2/0.05/146/16 32 MPH NE 6/11 70/49/60/-5/0/887/97/ 27 MPH NW 6/12 71/49/60/-5/0/897/98 23 MPH S 6/13 74/51/63/-2/0/805/88 31 MPH S 6/14 69/54/62/-3/0/T/027/03 32 MPH S 6/15 86/62/74/+8/0/669/73 30 MPH W 6/16 85/66/76/+10/0/824/90 20 MPH NW 6/17 85/63/74/+8/0/0.01/110/12 20 MPH ENE 6/18 65/60/63/-3/0/0.01/000/00 23 MPH ENE 6/19 80/58/69/+6/0.06/459/50 36 MPH W 6/20 71/51/61/-6/0/907/99 30 MPH NW 6/21 76/52/64/-3/0/899/98 31 MPH WSW 6/22 74/58/66/-1/T/110/12 30 MPH S 6/23 82/63/73/+5/0/789/86 25 MPH WNW 6/24 morning low temp. 62 During June to date there has been one daily record established so far for the month... The low maximum temp. of 51 degrees on the 1st edged out the previous low maximum for the date of 52 degrees in 1922 and 1984. * gust not associated with TSTM...but rather a rain/wind squall... DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JUNE 24 HIGH 91F IN 1914,1976 LOW 40F IN 1932 PRECIP 2.80 INS IN 1929 PEAK GUST 46 MPH S IN 1985 RECORDS FOR JUNE 25 HIGH 93F IN 1943,1980 LOW 47F IN 1903 PRECIP 0.94 INS IN 1892 PEAK GUST 51 MPH W IN 1960 TODAY'S REPORT BY: Kim Jeffs; Robert Skilling