BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, NOVEMBER 28, 2008 ALL TIMES ARE IN EASTERN STANDARD TIME Today's observations: 7 A.M. Weather: Scattered stratocumulus, overcast altocumulus Temperature: 34F, Dew point: 26F, Wind: SE at 15 kts Sea-level pressure: 29.83 inches Hg, falling Visibility: 12 miles, thin fog 6-hourly minimum temperature: 31F BHO SA 1155 55 SCT E140 OVC 12 101/34/26/1315/983/ THN FG/ 8/57/ 56025 10034 20031 10 A.M. Weather: Broken stratocumulus, overcast altocumulus Temperature: 40 F, Dew point: 35F, Wind: SE at 16 kt Sea-level pressure: 29.77 inches Hg, falling Visibility: 12 miles, thin fog BHO SA 1455 E6 BKN 85 OVC 12 081/40/35/1416/977/ THN FG/ 8/57/ 58020 1 P.M. Weather: Broken stratus, overcast nimbostratus, few lower stratus, ceiling ragged, rain and fog Temperature: 38F, Dew point: 38F, Wind: W at 11 kts Peak gust: 30 kts from the west at 12:40 P.M. Wind shift: SE to W at 12:35 P.M. Sea-level pressure: 29.68 inches Hg, falling Visibility: 5 miles, variable 3-15 miles, NE 15 miles, SE-SW 3 miles 3 hour precipitation: 0.06 in. (included 1/8-1/4 inch hail) 6 hour maximum temperature: 42F BHO SA 1755 E20 BKN 40 OVC 5VRF 052/38/38/2611/968/ CIG RGD FEW LWR STRA VSBY 3V15 VSBY NE 15 VSBY SE-SW 3 AB40E42 HLSTO 1/4 PK WND 2630/40 WSHFT 35/ 8/72/ 56029 MANUAL 6006/ ASOS 60005 10042 20034 WEATHER SUMMARY FOR THURSDAY, NOVEMBER 27 TEMPERATURE (DEGREES F) MAX.....44 NORMAL.....45 MIN.....32 NORMAL.....30 MEAN....38 NORMAL.....38 DEPARTURE FROM 30-YEAR NORMAL................0 TOTAL DEPARTURE FOR THE MONTH..............-11 [-0.6 DEGREES/DAY] HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY............27 DEPARTURE..........0 TOTAL HEATING UNITS FOR THE MONTH...........623 DEPARTURE.........+9 TOTAL HEATING UNITS FOR THE SEASON.........1165 DEPARTURE........-40 TOTAL HEATING UNITS LAST SEASON TO DATE.....998 DIFFERENCE......+167 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY............20 WSW AT 2:23 A.M. AEROVANE.............16 WSW AT 2:23 A.M. ASOS.................20 W AT 2:10 A.M. DAVIS................21 SW AT 10:30 P.M. FASTEST MILE FOR YESTERDAY..............14 WSW AT 2:06 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE...........14 W AT 2:11 A.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..........15 W AT 2:05 A.M. AVERAGE.............8.4 SW ASOS................8.1 DAVIS...............8.8 SW [224 deg] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.....0.00 DEPARTURE.......-0.15 ASOS...............0.00 TOTAL PRECIPITATION FOR THE MONTH...........4.40 DEPARTURE.......+0.21 ASOS...............4.55 TOTAL PRECIPITATION FOR THE YEAR...........49.34 DEPARTURE.......+3.13 ASOS..............52.07 # # Includes erroneous ASOS precipitation data on 2/13/08. SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0 DEPARTURE.....-0.1 TOTAL SNOWFALL FOR THE MONTH..............TRACE DEPARTURE.....-2.4 TOTAL SNOWFALL FOR THE SEASON.............TRACE DEPARTURE.....-2.6 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 2008 CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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 11/1 58/36/47/0/0.00/266/43 22 SW 11/2 43/29/36/-10/0.00/598/97 25 NW 11/3 50/32/41/-5/0.00/000/00 23 S 11/4 65/45/55/+9/0.00/409/67 24 SSW 11/5 65/52/59/+14/0.07/018/03 28 NE 11/6 55/52/54/+9/0.93/000/00 35 NNE 11/7 57/52/55/+10/0.05/000/00 24 N 11/8 59/55/57/+13/0.07/000/00 32 SE 11/9 57/45/51/+7/0.01/462/77 35 WSW 11/10 52/34/43/-1/T/316/53 32 W 11/11 47/31/39/-4/0.00/428/72 33 W 11/12 46/35/41/-2/0.00/355/60 17 W 11/13 49/36/43/0/0.05/T/000/00 35 ESE SLEET 8 AM 11/14 59/49/54/+12/0.07/0/000/00 22 SE 11/15 67/56/62/+20/0.62/0/000/00 65 SSE Aero 69 MPH SSE 11/16 64/37/51/+9/0.32/0/169/29 53 W Aero 46 MPH W 11/17 47/31/39/-2/0.00/0/0/501/86 24 SSW 11/18 38/23/31/-10/0.00/0.0/580/100 33 NW 11/19 31/18/25/-16/0.00/0.0/566/98 32 NW 11/20 33/17/25/-15/0.00/0.0/547/95 32 W Aero 29 MPH W 11/21 32/19/26/-14/0.00/0.0/551/96 36 NW Aero 33 MPH NW 11/22 26/17/22/-18/0.00/0.0/515/90 47 WNW Aero 47 MPH WNW 11/23 31/18/25/-14/0.00/0.0/.../.. 35 W Aero 33 MPH W 11/24 41/25/33/-6/0.00/0.0/.../.. 32 E 11/25 51/35/43/+4/2.21/0.0/000/00 44 E 11/26 44/30/37/-1/0.00/0.0/.../.. 32 S 11/27 44/32/38/0/0.00/0.0/.../.. 20 WSW 11/28 morning low temp. 31F; our normal low is now 30F NEW DAILY RECORDS FOR NOVEMBER 2008... 11/15 PEAK GUST: 65 SSE, PREVIOUS RECORD, 58 NNW in 1962, NW in 1967 11/15 HIGH MIN TEMP: 56F; TIED WITH 1989 11/22 LOW MAX TEMP: 26F; TIED WITH 1972 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 28 HIGH 70 IN 1990 LOW 10 IN 1901,1930,1936 PRECIP 1.84 INCHES IN 1889 SNOWFALL 3.0 INCHES IN 1917 PEAK GUST 90 SSW IN 1958 RECORDS FOR NOVEMBER 29 HIGH 64 IN 1963, 1990 LOW 6 IN 1901 PRECIP 2.69 INCHES IN 1963 SNOWFALL 5.0 INS IN 1995 PEAK GUST 86 SSE IN 1963 TODAY'S REPORT PREPARED By: Stephanie Radner