BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA   DAILY DISCUSSION AND CLIMATE SUMMARY MONDAY, FEBRUARY 26, 2007  ALL TIMES ARE IN EASTERN STANDARD TIME   SNOW ACCUMULATION--THREE INCHES BY EARLY AFTERNOON   Today's snowfall, which began during the early hours, is the greatest daily snowfall of this year to date.  That's, of course, not saying very much since prior to today's accum- ulation the maximum amount in one day was 1.4 inches on February 14th. Our seasonal total has now gone over 12 inches.   By early afternoon the snow was falling more in the form of flurries as the intensity is changing rather quickly from light to almost moderate at times.   Today's observations:   7 A.M.   Weather: Partial obscurement, low overcast Light snow and fog  Temperature: 29F, Dew point: 29F, Wind: ENE at 07 kts Sea-level pressure: 29.80 inches Hg, rising Visibility: 3/4 mile 6-hourly min. temp. 29 deg. 24-hourly snowfall: 1.5 ins. Snow on ground: 2 inches BHO SA 1155 -X 3/4S-F 092/29/29/0707/980/ SF3 TOTAL NEW SNW PST 24 HRS 1.5 INS/ 8/7// 4/002 56003 ASOS 60012 MANUAL 6012/ ASOS 70012 MANUAL 70012 10032 20029    10 A.M.    Weather: Obscurement with fog, very light snow grains and fog Temperature: 32F, Dew point: 32F, Wind: N at 05 kts  Sea-level pressure: 29.82 inches Hg, rising Visibility: 1/8 mile  BHO SA 1455 W3 X 1/8SG-F 098/32/32/0105/982/ PCPN VRY LGT TOTAL NEW SNW PST 3 HRS 0.9 IN/ 8//// 52006 ASOS 60008 MANUAL 6008/   1 P.M.    Weather: Partial obscurement with snow and fog Light snow showers and fog Temperature: 31F, Dew point: 31F, Wind: N at 10G20 kts  Wind: Variability NNW-NNE Sea-level pressure: 29.79 inches Hg, falling  Visibility: 1 mile  6-hourly max. temp. 33 deg. 6-hourly snowfall: 1.6 ins. 6-hourly precip: BHO SA 1755 –X 1SW-F 087/31/31/3610G20/979/ SF2 WND 33V03/ TOTAL NEW SNW PST 6 HRS 1.6 INS/ 8/7// 58011 ASOS 60016 10033 20029   WEATHER SUMMARY FOR SUNDAY, FEBRUARY 25   TEMPERATURE (DEGREES F) MAX.....41    NORMAL.....39 MIN.....19    NORMAL.....22   MEAN....30    NORMAL.....31   DEPARTURE FROM 30-YEAR NORMAL..........-1 TOTAL DEPARTURE FOR THE MONTH........-126 (-5.2 DEGREES/DAY)   HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY..........35   DEPARTURE........ 0 TOTAL HEATING UNITS FOR THE MONTH........1052   DEPARTURE......+120 TOTAL HEATING UNITS FOR THE SEASON.......3996   DEPARTURE......-472 TOTAL HEATING UNITS LAST SEASON TO DATE..3946   DIFFERENCE......+50   PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY............22 WNW AT  8:44 A.M.                          AEROVANE.............20 WNW AT  8:44 A.M. *                        ASOS.................20 WNW AT  9:00 A.M.                         DAVIS................23 WNW AT  3:14 A.M.       FASTEST MILE FOR YESTERDAY..............16 WNW AT  3:15 A.M. *  MAXIMUM 2-MINUTE ASOS AVERAGE...........17 WNW AT  3:15 A.M.      MAXIMUM 2-MINUTE DAVIS AVERAGE..........18 WNW AT  3:14 A.M.     AVERAGE WIND SPEED AND DIRECTION...... 8.9 WNW                     ASOS.............. 9.4                          DAVIS............. 9.3 W [280 deg]  * last of several occurrences....   PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.12  DEPARTURE.....-0.03                          ASOS..............0.12 TOTAL PRECIPITATION FOR THE MONTH..........2.59  DEPARTURE.....-1.02                           ASOS..............2.57    TOTAL PRECIPITATION FOR THE YEAR...........5.53  DEPARTURE.....-2.86                           ASOS..............5.44   SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........1.5  DEPARTURE......+1.0 TOTAL SNOWFALL FOR THE MONTH................5.3  DEPARTURE......-9.2  TOTAL SNOWFALL FOR THE SEASON..............11.9  DEPARTURE.....-32.0    PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 2007......CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST   AERO: Aerovane recording wind system when significant TSTM: Thunderstorm day ....: Data not yet available   2/1  35/20/28/+2/0/0/126/21         37 S    Aero 34 MPH S 2/2  35/28/32/+6/0.18/0.3/000/00    20 NW 2/3  32/19/26/0/0.05/0.4/574/95     39 W    Aero 47 MPH W  2/4  22/10/16/-10/0/0/601/99        39 WSW  Aero 40 MPH WSW 2/5  16/5/11/-16/0/0/493/81         61 W    Aero 60 MPH W  2/6  24/10/17/-10/0/0/593/97        38 W    Aero 36 MPH W 2/7  21/8/15/-12/0/0/474/77         43 W    Aero 41 MPH W 2/8  25/11/18/-9/0/0/370/60         48 WSW 2/9  26/15/21/-6/0/0/600/97         44 WSW  Aero 42 MPH WSW 2/10 32/13/23/-4/0/0/199/32         28 W     2/11 31/14/23/-4/0/0/456/73         27 SSW  2/12 36/20/28/0/0/0/602/96          43 WSW  Aero 40 MPH W  2/13 22/6/14/-14/0.02/0.2/226/36    28 NW   2/14 36/13/25/-3/2.09/1.4/000/00    47 NE   Aero 52 MPH NE 2/15 21/9/15/-13/0/0/616/97         46 W    Aero 53 MPH W 2/16 27/9/18/-10/0/0/624/98         51 W    Aero 49 MPH W 2/17 34/17/26/-3/0/0/596/93         42 W 2/18 33/16/25/-4/0/0/289/45         38 WNW  Aero 40 MPH WNW  2/19 20/5/13/-16/0/0/646/100        46 WNW  Aero 51 MPH WNW 2/20 48/17/33/+4/T/0/266/41         35 SSW  Aero 34 MPH SSW  2/21 44/30/37/+8/0.01/0/606/93 **   29 W     2/22 39/28/34/+4/0.02/0.2/007/01    22 SSE   2/23 32/14/23/-7/0.10/1.3/466/71    55 WNW  Aero 56 MPH WNW 2/24 33/11/22/-8/0/0/652/99         40 WNW  Aero 43 MPH WNW 2/25 41/19/30/-1/0/0/.../..         22 WNW    2/26 morning low temp. 29 deg; normal now 23 deg.      there are 2 inches of snow on the ground        2/14 - NEW RECORD DAILY PRECIPITATION OF 2.09 INCHES;  the previous record was 1.95 inches in 1940.   DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR FEBRUARY 26 HIGH 67F IN 1957 LOW -7F IN 1928 PRECIP 2.24 INCHES IN 1979 SNOWFALL 11.1 INCHES IN 1933 PEAK GUST 66 MPH W IN 1961   RECORDS FOR FEBRUARY 27 HIGH 61F IN 1976 LOW -8F IN 1900 PRECIP 0.90 INCHES IN 1922 SNOWFALL 6.0 INCHES IN 1922 PEAK GUST 67 MPH W IN 1985   TODAY'S REPORT By: Robert Skilling