BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SUNDAY, JANUARY 30, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted] SNOWIEST JANUARYS AT BLUE HILL: 1) 56.3" IN 1958 2) 48.0" IN 1904 3) 47.6" IN 1996 4) 46.0" IN 1966 5) 44.8" IN 2005 6) 44.5" IN 1923 GREATEST BLUE HILL SNOWSTORMS: 1) 38.7" Feb 24-28, 1969 2) 30.3" Mar 3-5, 1960 3) 30.1" Feb 6-7, 1978 4) 30.0" Mar 31 - Apr 1, 1997 5) 24.7" Feb 17-18, 2003 6) 24.3" Dec 5-7, 2003 7) 22.2" Feb 16-17, 1958 8) 21.0" Feb 9-10, 1969 9) 20.5" Jan 22-23, 2005 10) 20.3" Dec 12, 1960 11) 20.0" Jan 31 - Feb 1, 1898 Today's observations: 7 A.M. Weather: Overcast altostratus Temperature: 24F, Dew point: 7F, Wind: SW at 11 kt Sea-level pressure: 30.05 inches Hg steady Visibility: 20 miles BHO SA 1155 E90 OVC 20 176/24/7/2311/005/ FEW BINOVC NE-E/ 8/07/ 4/017 55005 10025 20024 10 A.M. Weather: Scattered altocumulus, broken cirrus Temperature: 29F, Dew Point: 7F, Wind: WNW at 10 kt Visibility: 50 miles Sea-level pressure: 30.07 inches Hg, rising BHO SA 1455 100 SCT 200 BKN 50 182/29/7/3010G15/007/ FEW SC SE THN K LYR ALNG HRZN SW-N WND VEERING/ 8/571 51006 1 P.M. Weather: Thin overcast cirrus Temperature: 34F, Dew Point: 7F, Wind: N at 11 kt Visibility: 70 miles BHO SA 1755 200 BKN 250 -OVC 70 180/34/7/3611G14/007/ FEW AC ALQDS/ 8/071 58002 10035 20024 WEATHER SUMMARY FOR SATURDAY, JANUARY 29: TEMPERATURE (DEGREES F) MAX.....35 NORMAL.....34 ASOS.....34 AT 3:21 P.M. MIN......8 NORMAL.....18 ASOS......8 AT 6:28 A.M. MEAN....22 NORMAL.....26 DEPARTURE FROM 30-YEAR NORMAL......-4 TOTAL DEPARTURE FOR THE MONTH.....-55 (-1.9 DEGREES/DAY) TOTAL DEP. ON JAN 15..............116 (7.7 DEGREES/DAY) HEATING DEGREE DAY INFORMATION TOTAL HEATING DEGREE DAYS FOR SATURDAY.......43 DEPARTURE.....+4 TOTAL HEATING DEGREE DAYS FOR THE MONTH....1186 DEPARTURE....+57 TOTAL HEATING DEGREE DAYS FOR THE SEASON...3403 DEPARTURE....-55 TOTAL HEATING DEGREE DAYS FOR LAST YEAR....3462 DIFFERENCE..-102 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........24 WSW AT 5:25 P.M. AEROVANE.........24 WSW AT 5:44 P.M. ASOS.............22 WSW AT 5:42 P.M. FASTEST MILE FOR YESTERDAY..........20 WSW AT 11:33 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......17 WSW AT 11:18 P.M. AVERAGE WIND SPEED AND DIRECTION..10.8 WSW ASOS...........11.6 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..........6.30 DEPARTURE....+1.68 ASOS..............9.02* TOTAL PRECIPITATION FOR THE YEAR...........6.30 DEPARTURE....+1.68 ASOS..............9.02* *ASOS WEIGHING RAIN GAGE HAS RECORDED EXTRANEOUS PRECIPITATION SINCE 23 JANUARY. SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M............0 DEPARTURE.....-0.6 TOTAL SNOWFALL FOR THE MONTH...............44.8 DEPARTURE....+29.6 TOTAL SNOWFALL FOR THE SEASON..............68.8 DEPARTURE....+40.0 PRELIMINARY CLIMATE SUMMARY FOR JANUARY 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 1/1 49/32/41/+14/0/0/538/98 45 MPH W 1/2 39/26/33/+6/0.05/0/297/54 36 MPH S 1/3 51/39/45/+18/0.26/0/006/01 40 MPH SSW 1/4 42/36/39/+12/0.41/0/006/01 25 MPH NNE 1/5 36/24/30/+3/0.15/1.8/0/0 22 MPH NNE 1/6 35/22/29/+3/0.89/5.2/0.0 30 MPH NE 1/7 36/26/31/+5/0/0/0/0/.../.. 44 MPH W Aero 46 MPH W 1/8 32/26/29/+3/0.86/1.0/000/00 25 MPH N 1/9 29/21/25/-1/0/0/011/02 22 MPH NNW 1/10 38/28/33/+7/T/T/017/03 36 MPH SSW Aero 42 MPH SSW 1/11 32/26/29/+3/0.05/0.5/106/19 27 MPH WSW 1/12 37/26/32/+6/0.56/1.5/000/00 33 MPH ENE 1/13 56/30/43/+17/T/0/000/00 46 MPH S 1/14 61/30/46/+20/0.63/T/000/00 68 MPH S Aero 67 MPH S 1/15 30/21/26/0/0/0/277/49 31 MPH NW 1/16 28/19/24/-2/0.28/2.2/000/00 36 MPH N Aero 38 MPH N 1/17 23/08/16/-10/0.07/0.6/097/17 35 MPH WNW 1/18 11/00/6/-20/0/0/.../.. 38 MPH W 1/19 24/-3/11/-14/0.20/2/8/.../.. 23 MPH WSW 1/20 26/12/19/-6/0.08/1.2/.../.. 37 MPH W 1/21 12/-3/5/-20/0/0/.../.. 36 MPH WNW 1/22 24/-7/9/-16/../../.../.. 58 MPH NE 1/23 24/0/12/-13/../../.../.. 62 MPH NE 1/24 21/-2/1-/-16/../../.../.. 37 MPH WNW 1/25 24/11/18/-8/../../.../.. 31 MPH WNW 1/26 26/13/20/-6/../../.../.. 1/27 13/1/7/-19/../../.../.. 35 MPH NNW 1/28 20/-3/9/-17/../../.../.. 28 MPH NW 1/29 35/8/22/-4/0/0/.../.. 24 MPH WSW DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JANUARY 30 HIGH 60F IN 1914 LOW -8F IN 1948 PRECIP 1.12 INCHES IN 1925 SNOWFALL 6.5 INCHES IN 1986 PEAK GUST 76 MPH WNW IN 1962 RECORDS FOR JANUARY 31 HIGH 58F IN 1913,1947 LOW -12F IN 1920 PRECIP 1.03 INCHES IN 1914 SNOWFALL 9.0 INCHES IN 1898 PEAK GUST 75 MPH NW IN 1974 TODAY'S REPORT BY: Andrew Hoell