BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, NOVEMBER 26, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME CLOUDY AND COLD TODAY AFTER SOME SUNSHINE THIS MORNING... ...SNOW FLURRIES POSSIBLE THIS AFTERNOON...2005 NOW SEVENTH WETTEST YEAR ON RECORD... The temperature has climbed to a high of 34 degrees today from the morning low of 23 with some partial sunshine early this morning. Friday was the coldest day of the season to date with a low of 18 and a mean of 25. This has nearly frozen over the nearby Ponkapoag Pond, which is 9/10 ice covered this morning. Altostratus and altocumulus clouds have moved in this afternoon and the visibility is lowering to the west in response to some light snow falling and moving across Massachusetts. The minimum sea-level pressure of 28.72 inches measured on November 22 is the second lowest on record for the month of November behind only 28.57 inches observed on November 14, 1904. The annual precipitation of 61.32 inches is the second highest for January-November and the seventh highest annual total on record through Nov. 25th. Highest Jan-Nov Precipitation 1) 69.36" in 1998 2) 61.32" in 2005 (through 11/25) 3) 61.05" in 1996 Highest Annual Precipitation 1) 71.00" in 1998 2) 69.36" in 1996 3) 65.51" in 1972 4) 63.81" in 1920 5) 62.45" in 1983 6) 62.38" in 1975 7) 61.32" in 2005 (through 11/25) Today's observations: 7 A.M. Weather: Thin scattered cirrus Temperature: 25F, Dew point: 12F, Wind: W 3 mph Sea-level pressure: 30.38 inches, rising Visibility: 40 miles, few patches of ground fog E-SE BHO SA 1155 200 SCT 250 SCT 40 288/25/12/2602/038/ CS SW-NW FEW PTCHS THN GF E-SE WND LGT/ 8/001 53007 10025 20023 10 A.M. Weather: Thin overcast cirrus and cirrostratus Temperature: 31F, Dew point: 17F, Wind: S 9 mph Sea-level pressure: 30.38 inches, steady Visibility: 45 miles BHO SA 1455 200 SCT 250 -OVC 45 288/31/17/1608/038/ THN K LYR ALG HRZN WNW-NNE WND LGT/ 8/001 54000 1 P.M. Weather: Scattered altocumulus and overcast in altostratus Temperature: 34F, Dew point: 20F, Wind: SW 9 mph Sea-level pressure: 30.35 inches, falling Visibility: 35 miles, 25 miles to WNW-NW BHO SA 1755 120 SCT 150 OVC 35 278/34/20/2108/035/ HIR CLDS VSBL SE-S FEW STFRA VCNTY STN VSBY WNW-NW 25 WND LGT/ 8/77/ 56010 10034 20025 WEATHER SUMMARY FOR FRIDAY, NOVEMBER 25 TEMPERATURE (DEGREES F) MAX.....32 NORMAL.....46 ASOS.....31 AT 2:27 PM MIN.....18 NORMAL.....31 ASOS.....18 AT 8:00 AM MEAN....25 NORMAL.....39 DEPARTURE FROM 30-YEAR NORMAL......-14 TOTAL DEPARTURE FOR THE MONTH......+60 (+2.2 DEGREES/DAY) HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY..........40 DEPARTURE....+13 TOTAL HEATING UNITS FOR THE MONTH.........498 DEPARTURE....-62 TOTAL HEATING UNITS FOR THE SEASON........959 DEPARTURE...-192 TOTAL HEATING UNITS LAST SEASON TO DATE..1090 DIFFERENCE..-131 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY.........39 W AT 12:43 A.M. AEROVANE..........42 W AT 12:43 A.M. ASOS..............37 W AT 12:43 A.M. DAVIS.............40 WSW AT 12:36 A.M. FASTEST MILE FOR YESTERDAY...........32 WSW AT 12:37 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE........32 WSW AT 12:38 A.M. AVERAGE WIND SPEED AND DIRECTION...15.3 SW ASOS............14.7 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..........3.70 DEPARTURE....-0.19 (CORRECTED) ASOS..............3.68 TOTAL PRECIPITATION FOR THE YEAR..........61.32 DEPARTURE...+15.56 (CORRECTED) ASOS.............60.23* *EXCLUDES 3.19 INCHES OF ERRONEOUS PRECIPITATION RECORDED FROM 1/23-1/28. SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0 DEPARTURE....-0.1 TOTAL SNOWFALL FOR THE MONTH................0.6 DEPARTURE....-1.6 TOTAL SNOWFALL FOR THE SEASON...............2.1 DEPARTURE....-0.3 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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 11/1 70/48/59/+12/0/0/446/72 39 MPH S Aero 40 MPH S 11/2 56/39/48/+2/T/0/543/88 37 MPH WNW Aero 39 MPH WNW 11/3 62/36/49/+3/0/0/449/73 50 MPH S Aero 52 MPH S 11/4 69/46/58/+12/0/0/465/76 29 MPH SSE Aero 30 MPH SSE 11/5 71/47/59/+14/0/0/268/44 18 MPH S 11/6 57/49/53/+8/0.25/0/000/00 31 MPH SSW Aero 36 MPH SSW TSTM 11/7 57/45/51/+6/0.01/0/430/71 47 MPH W Aero 48 MPH W 11/8 60/42/51/+7/0/0/265/44 35 MPH W Aero 36 MPH W 11/9 57/34/46/+2/0.20/258/43 36 MPH SSE Aero 41 MPH SSE 11/10 58/32/45/+1/0.46/102/17 37 MPH W Aero 44 MPH W TSTM 11/11 41/29/35/-8/0/0/536/90 29 MPH W 11/12 51/26/39/-4/0/0/594/100 18 MPH W 11/13 62/41/52/+9/0/0/496/84 30 MPH S Aero 37 MPH S 11/14 63/44/54/+12/T/0/524/89 31 MPH WSW Aero 37 MPH WSW 11/15 53/42/48/+6/0.09/0/000/00 22 MPH E 11/16 65/47/56/+14/0.40/0/029/05 54 MPH S Aero 58 MPH S 11/17 47/30/39/-2/0.19/0/.../.. 28 MPH W 11/18 38/26/32/-9/0/0/.../.. 30 MPH W 11/19 43/26/35/-6/0/0/.../.. 23 MPH W 11/20 55/34/45/+5/0/0/.../.. 27 MPH SSW Aero 31 MPH SSW 11/21 56/40/48/+8/0.20/0/403/70 25 MPH S 11/22 47/33/40/0/1.78/0/000/00 44 MPH W Aero 50 MPH W 11/23 33/22/28/-11/0.01/0/.../.. 32 MPH W 11/24 41/22/32/-7/..../0.4/.../.. 45 MPH W 11/25 32/18/25/-14/0/0/.../.. 39 MPH W 11/26 ..overnight low 23 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 26 HIGH 66 IN 1979 LOW 6 IN 1938 PRECIP 2.22 INS IN 1888 SNOWFALL 3.0 INS IN 1974 PEAK GUST 78 SSE IN 1964 RECORDS FOR NOVEMBER 27 HIGH 68 IN 1896 LOW 5 IN 1932 PRECIP 1.92 INS IN 1898 SNOWFALL 16.0 INS IN 1898 PEAK GUST 68 NW IN 1997 TODAY'S REPORT BY: Mike Iacono