BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA   DAILY DISCUSSION AND CLIMATE SUMMARY MONDAY, JANUARY 23, 2012 ALL TIMES ARE IN EASTERN STANDARD TIME   TEMPERATURES HEADED BACK WARMER THAN NORMAL   After a morning low of 26F the temperatures is rising through the low 40's early this afternoon. There was 0.1 inch of snowfall early this morning and that along with the 4 inches of old snow was melting down today. The sky remained heavily overcast with low clouds all day along with light southeast winds.   Today's observations:   7 A.M.  Weather: Low overcast stratus, light snow and thin fog Temperature: 30F, Dew point: 28F, Wind: SE at 12 kts Sea-level pressure: 30.28 inches Hg, falling  Visibility: 5 miles, light snow and thin fog 24-hour precip: trace 24-hour snowfall: 0.1 inch Snow depth: 4 inches 6-hour min. temp: 26F BHO SA 1155 E25 OVC 5S-F 289/30/28/1312/028/ LGT SNW INTMT TOTAL NEW SNW PST 24 HRS 0.1 IN/ 8/6// 4/004 56017 MANUAL 6000/ 10030 20026    10 A.M. Weather: Low overcast stratus, thin fog and haze  Temperature: 35F, Dew Point: 32F; Wind: SE at 11 kts, Sea-level pressure: 30.33 inches Hg, rising    Visibility: 15 miles, except 20 miles WNW, thin fog/hazy 3-hour precip: trace 3-hour snowfall: trace BHO SA 1455 E7 OVC 15 271/35/32/1411/033/ THN FH ALQDS/ 8/6// 55018 MANUAL 6000/    1 P.M.  Weather: Broken stratus, overcast stratus, very light drizzle and thin fog  Temperature: 41F, Dew Point: 37F; Wind: SE at 7 kts, Sea-level pressure: 30.25 inches Hg, falling  Visibility: 6 miles, very light drizzle, thin fog, N 9 miles, NE-SE 6 miles, S-SW 15 miles, NW 8 miles 6-hour max. temp: 41F 6-hour precip: trace 6-hour snowfall: trace   BHO SA 1755 E12 BKN 32 OVC 6L-F 244/41/37/1407/025/ VSBY N 9 NE-SE S-SW 15 NW 8 LBUKN INTMT VRY LGT/ 8/6// 56027 6000/ 10041 20030   WEATHER SUMMARY FOR SUNDAY, JANUARY 22   TEMPERATURE (DEGREES F) MAX.....28    NORMAL.....34 MIN.....11    NORMAL.....17 MEAN....20    NORMAL.....25   DEPARTURE FROM 30-YEAR NORMAL......................-5 TOTAL DEPARTURE FOR THE MONTH.....................+86 [+3.7 DEGREES/DAY]   HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY.............45   DEPARTURE.........+5 TOTAL HEATING UNITS FOR THE MONTH............783   DEPARTURE........-71 TOTAL HEATING UNITS FOR THE SEASON..........2536   DEPARTURE.......-647 TOTAL HEATING UNITS LAST SEASON TO DATE.....3104   DIFFERENCE......-568   PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY.............20 NNW AT  1:47 A.M.                    AERO..................20 NNW AT  1:47 A.M.                    ASOS..................21 N   AT  3:50 A.M.                    DAVIS.................24 NNW AT  1:46 A.M. RMY N/A THE FASTEST MILE FOR YESTERDAY...........15 N   AT  5:23 A.M.  MAXIMUM 2-MINUTE ASOS AVERAGE............16 N   AT  5:23 A.M. MAXIMUM 2-MINUTE DAVIS AVERAGE...........15 N   AT  5:24 A.M. AVERAGE WIND SPEED AND DIRECTION........7.8 N                     ASOS.................7.7                    DAVIS................7.6 N [010 deg]   PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M...Trace  DEPARTURE..........-0.14                          ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........2.19  DEPARTURE..........-0.93                          ASOS..............2.23 TOTAL PRECIPITATION FOR THE YEAR...........2.19  DEPARTURE..........-0.93                         ASOS...............2.23       SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.1  DEPARTURE..........-0.4 TOTAL SNOWFALL FOR THE MONTH................7.6  DEPARTURE..........-3.4      TOTAL SNOWFALL FOR THE SEASON..............16.1  DEPARTURE..........-8.5        PRELIMINARY CLIMATE SUMMARY FOR JANUARY 2012 CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane wind recording system gust when significant RMY:  RMY = R.M. Young wind gust recording system added 8/9/2011 TSTM: Thunderstorm day (thunder heard some time during day) ....: Data not yet available, records not finalized   1/1  51/35/42/+16/0.01/0.0/494/90   35 S   AERO 35 MPH S   RMY 37 1/2  48/30/39/+12/0.02/T/346/63     36 W   AERO 36 MPH W   RMY 37 1/3  30/11/21/-5/0.00/0.0/446/81    39 NW  AERO 38 MPH NW  RMY 39 1/4  26/7/17/-9/0.00/0.0/468/85     28 NW  AERO 25 MPH NW  RMY N/A 1/5  35/20/28/+2/T/T/166/30         27 W   AERO 25 MPH W   RMY 26 1/6  47/23/35/+9/0.01/0.1/.../..    26 S   AERO 25 MPH S   RMY 27 1/7  59/39/49/+23/0.00/0.0/477/86   29 WSW AERO 29 MPH SW  RMY 30 1/8  43/26/35/+9/0.00/0.0/367/66    28 W   AERO 27 MPH W   RMY N/A 1/9  39/21/30/+4/0.00/0.0/384/69    22 S   AERO 21 MPH S   RMY 24 1/10 43/28/36/+11/0.05/0.5/379/68   29 WNW AERO 30 MPH WNW RMY 32 1/11 38/27/33/+8/0.00/0.0/448/80    24 E   AERO 24 MPH E   RMY N/A 1/12 40/31/36/+11/1.37/0.1/000/00   52 ENE AERO 52 MPH NE  RMY 49 1/13 50/27/39/+14/0.06/T/174/31     63 SW  AERO 67 MPH SW  RMY 67 1/14 33/16/25/0/0.00/0.0/451/80     36 WSW AERO 37 MPH WSW RMY 35 1/15 16/4/10/-15/0.00/0.0/555/98    36 NW  AERO 36 MPH NW  RMY 37 1/16 31/5/18/-7/0.11/1.2/408/72     32 SSW AERO 32 MPH SSW RMY N/A 1/17 46/31/39/+14/0.11/0.4/000/00   35 SW  AERO 36 MPH SW  RMY N/A 1/18 49/18/34/+9/0.00/0.0/564/99    56 WNW AERO 55 MPH WNW RMY 56 1/19 28/12/20/-5/0.10/1.1/.../..    27 SE  AERO 28 MPH ESE RMY 28 1/20 29/17/23/-2/0.06/0.7/.../..    30 W   AERO 30 MPH W   RMY 30 1/21 20/13/17/-8/0.29/3.4/.../..    25 N   AERO 25 MPH N   RMY 25 1/22 28/11/20/-5/0.00/0.0.../..     20 NNW AERO 20 MPH NNW RMY 20   1/23 our morning low temp: 26F; the normal low is now 17F   DAILY RECORDS FOR JANUARY 2012 None so far.   DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR JANUARY 23 HIGH 62F IN 1906 LOW -10F IN 1976 PRECIP 2.40 INS. IN 1935 SNOWFALL 14.6 INS. IN 1966 PEAK GUST 85 MPH S IN 1992   RECORDS FOR JANUARY 24 HIGH 60F IN 1967 LOW -12F IN 1907 PRECIP 2.04 INS. IN 1998 SNOWFALL 11.3 INS. IN 1935 PEAK GUST 82 MPH S IN 1996   TODAY'S REPORT PREPARED BY: Robert Skilling/Patrick Peters