BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA ALL TIMES EASTERN DAYLIGHT TIME (UNLESS OTHERWISE INDICATED) SATURDAY, JUNE 18, 2005 Discussion at 11 a.m. Cool temperatures continue with below normal temps. over the past three days and an average which is 10 degrees below normal. Low clouds are slow to break up today with a solid low stratus overcast continuing late this morning and the temperature a few degrees short of 60. Precipitation over the past week has totaled only 0.22 inch... TODAY'S OBSERVATIONS 6/18/2005 SAT 8 a.m. obscurement with fog and visibility 1/16 mile in heavy fog; temp/dewpoint 53; wind ne at 05 mph; six hourly min. temp. 50; six hourly precip. trace BHO SA 1155 W2 X 1/16F 104/53/53/0404/984/ 8//// 51016 10053 20050 11 a.m. low overcast with 9 miles visibility and thin fog; temp. 56; dewpoint 53; wind north at 03 mph... BHO SA 1455 E3 OVC 9 122/56/53/E3602/989/ VSBY SW-NW NE 12/ WND L/V 8/6// 53018 WEATHER SUMMARY FOR FRIDAY, JUNE 17: TEMPERATURE (DEGREES F) MAX.....73 NORMAL.....76 ASOS.....73F AT 3:49 P.M. MIN.....50 NORMAL.....56 ASOS.....50F AT 11:59 P.M. * MEAN....62 NORMAL.....66 DEPARTURE FROM 30-YEAR NORMAL.....- 4 TOTAL DEPARTURE FOR THE MONTH.....+61 (+3.4 DEGREES/DAY) * Eastern Standard Time HEATING DEGREE DAY UNITS... TOTAL HEATING UNITS FOR YESTERDAY....... 3 TOTAL HEATING UNITS FOR THE MONTH.......45 TOTAL HEATING UNITS FOR THE SEASON....6391 DEP....+38 TOTAL HEATING UNITS FOR LAST SEASON...6283 DIF....+108 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........24 N AT 9:24 P.M. AEROVANE.........24 N AT 9:24 P.M. ASOS.............21 N AT 9:25 P.M. FASTEST MILE FOR YESTERDAY..........16 N AT 9:23 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......17 N AT 9:25 P.M. MAXIMUM 1-MINUTE DAVIS AVERAGE......17 N AT 9:25 P.M. AVERAGE WIND SPEED AND DIRECTION.. 6.2 ENE ASOS........... 6.6 NNE [030 deg] DAVIS.......... 6.3 NNE [020 deg] PRECIPITATION (INCHES) THROUGH THIS MORNING (EDT) TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....trace DEPARTURE....-0.14 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........0.74 DEPARTURE....-1.50 ASOS..............0.73 TOTAL PRECIPITATION FOR THE YEAR..........30.30 DEPARTURE....+6.65 ASOS.............29.35 PRELIMINARY CLIMATE SUMMARY FOR JUNE 2005......CALENDAR DAY DATA DATA REPORTED: DATE MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane recording wind system when significant TSTM: Thunderstorm day ....: Data not yet available 6/1 64/46/55/-7/0/570/63 22 MPH S 6/2 75/48/62/0/0/689/76 22 MPH S 6/3 77/49/63/+1/0/508/56 29 MPH S 6/4 83/58/71/+8/0/781/86 15 MPH SW 6/5 88/55/72/+9/0/782/86 27 MPH N 6/6 76/52/64/+1/0/382/42 30 MPH SSE 6/7 87/61/74/+10/0/802/88 33 MPH SSW 6/8 89/65/77/+13/0.34/784/86 30 MPH N TSTM 6/9 79/65/72/+8/0.18/593/65 28 MPH WSW TSTM 6/10 81/66/74/+10/0/174/19 36 MPH SSW Aero 38 MPH SSW 6/11 88/66/77/+12/0/475/52 26 MPH SSW 6/12 87/67/77/+12/0.01/.../.. 25 MPH SW TSTM 6/13 89/71*/80/+15/T/.../.. 21 MPH SSW 6/14 81/51/66/+1/0.01/.../.. 27 MPH NNE TSTM 6/15 51*/47/49/-17/0.02/000/00 27 MPH N 6/16 62/47/55/-11/0.18/.../.. 23 MPH NNE 6/17 73/50/62/-4/T/.../.. 24 MPH N 6/18 morning low temp. 50 degrees.... DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): NEW RECORD{S} FOR JUNE SO FAR.... * a new record high min. temp. for 6/13 of 71 deg; the previous record was 70 in 1892. * a new record low max. temp. for 6/15 of 51 deg; the previous record was 52 in 1959 and 2000. RECORDS FOR JUNE 18 HIGH 93F IN 1929,1994 LOW 39F IN 1920 PRECIP 3.36 INCHES IN 1998 PEAK GUST 48e MPH W IN 1943 RECORDS FOR JUNE 19 HIGH 92F IN 1923 LOW 40F IN 1920 PRECIP 3.92 INS 1922 PEAK GUST 66e MPH NW IN 1940 TODAY'S REPORT BY: Robert Skilling