BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, JANUARY 26, 2017   ALL TIMES ARE IN EASTERN STANDARD TIME LIGHT RAIN SHOWER LEAVES 0.01 IN. OF PRECIP, PRESSURE KEEPS FALLING Light drizzle early this morning left just a trace of precip. for the 7:00AM ob.  At 1:00PM, rainfall measured 0.01 in. after a brief rain shower passed BHO after noon. Temps. rose to a max. of 47F but had started falling by 1:00PM with the approaching cold front.  Winds began to gust 25-30 MPH. Pressure has been slow to rebound after the coastal storm earlier this week.  The month's lowest pressure so far has occurred today. Today's Observations: 7 A.M. Weather: Few cumulus E-SSE, overcast altostratus Temperature: 38F; Dew Point: 34F; Wind: SSW at 11 kts Sea-level pressure: 29.43 ins. Hg, falling, then more slowly Visibility: 20 miles, distant fog in all directions 6-hr Max temp: 38F 6-hr Min temp: 36F 24-hr precip: Trace 24-hr snowfall: 0.00 in.   BHO SA 1155 E100 OVC 20 965/38/34/2011/943/ FEW CU E-SSE DSNT FG ALQDS/ 8/12/ 56023 10038 20036 10 A.M. Weather: Broken altostratus Temperature: 42F; Dew Point: 36F; Wind: SW at 9 kts Sea-level pressure: 29.38 ins. Hg, falling, then more slowly Visibility: 40 miles, distant fog in all directions BHO SA 1455 E140 BKN 40 948/42/36/2209/938/ DSNT FG ALQDS/ 8/01/ 56017 1 P.M. Weather: Scattered stratocumulus, broken stratus Temperature: 45F; Dew Point: 40F; Wind: S at 19G22 kts Sea-level pressure: 29.23 ins. Hg, falling, then more quickly Visibility: 70 miles, except 30 miles NE-S, distant fog NE-S 6-hr Max temp: 47F 6-hr Min temp: 38F 6-hr precip: 0.01 in. 6-hr snowfall: 0.0 in. BHO SA 1755 54 SCT E64 BKN 70 899/45/40/1819G22/923/ VSBY NE-S 30 DSNT FG NE-S/ 8/600 58049 MANUAL 6001/ ASOS 60002 10047 20038 SUMMARY FOR WEDNESDAY, JANUARY 25, 2017   TEMPERATURE (DEGREES F) MAX.....42   NORMAL.....34 MIN.....32   NORMAL.....17 MEAN....37   NORMAL.....25 DEPARTURE FROM 30-YEAR NORMAL.......................+12 TOTAL DEPARTURE FOR THE MONTH......................+187 [+7.3 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY..............28   DEPARTURE.........-12 TOTAL HEATING UNITS FOR THE MONTH.............802   DEPARTURE........-187 TOTAL HEATING UNITS FOR THE SEASON...........2834   DEPARTURE........-459 TOTAL HEATING UNITS LAST SEASON TO DATE......2573   DIFFERENCE.......+261 PEAK GUST AND AVERAGE WIND SPEED (MPH)  PEAK WIND GUST FOR YESTERDAY...................41 WNW AT 11:42 A.M.                    ASOS........................42 WNW AT 11:42 A.M.                    DAVIS.......................38 NW  AT 11:41 A.M. RMY 38 FASTEST MILE FOR YESTERDAY.....................29 WNW AT 11:40 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE..................28 WNW AT 11:42 A.M. MAXIMUM 2-MINUTE DAVIS AVERAGE.................28 NW  AT 11:41 A.M. AVERAGE WIND SPEED AND DIRECTION.............16.5 WNW                      ASOS......................16.0                    DAVIS.....................14.9 NW [310 deg.] *last of multiple occurances PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M...TRACE  DEPARTURE......-0.14                          ASOS..............0.01 TOTAL PRECIPITATION FOR THE MONTH..........5.29  DEPARTURE......+1.75                          ASOS..............5.65 TOTAL PRECIPITATION FOR THE YEAR...........5.29  DEPARTURE......+1.75                          ASOS..............5.65 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.......-0.6 TOTAL SNOWFALL FOR THE MONTH...............11.5  DEPARTURE.......-2.4 TOTAL SNOWFALL FOR THE SEASON..............19.3  DEPARTURE......-10.6 PRELIMINARY CLIMATE SUMMARY FOR JANUARY CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST AERO: Aerovane wind recording system gust RMY:  R.M. Young wind gust recording system TSTM: Thunderstorm day (thunder heard some time during day) ....: Data not yet available, records not finalized M:    Missing data 1/1   41/29/35/+8/0.09/0.0/533/97           35 W   AERO 36 W   RMY 34 1/2   38/29/34/+7/0.00/0.0/011/02           21 E   AERO 20 E   RMY N/A   1/3   42/37/40/+14/1.14/0.0/000/00          39 ENE AERO 41 ENE RMY 34 1/4   44/30/37/+11/0.11/T/000/00            41 WNW AERO 46 WNW RMY 45  1/5   30/23/27/+1/0.00/0.0/343/62           37 W   AERO 39 W   RMY 38 1/6   30/20/25/-1/0.05/1.7/072/13           20 W   AERO 20 W   RMY N/A 1/7   22/14/18/-8/0.74/9.5/000/00           32 NNW AERO 39 NNW RMY 38 1/8   20/06/13/-13/0.01/T/512/92            26 NNW AERO 29 NNW RMY N/A 1/9   17/04/11/-15/0.00/0.0/335/60          23 SSW AERO 23 SSW RMY 25 1/10  41/14/28/+3/0.18/0.0/369/66           35 SE  AERO 37 SE  RMY N/A 1/11  53/40/47/+22/0.13/0.0/358/64          51 SSW AERO 48 SSW RMY 57 1/12  59/42/51/+26/0.15/0.0/118/21          37 SSW AERO 40 S   RMY 40 1/13  55/23/39/+14/0.00/0.0/535/95          39 WNW AERO 43 WNW RMY 42 1/14  30/14/22/-3/0.00/0.0/345/61           20 SSW AERO 20 SSW RMY 22 1/15  35/23/29/+4/0.00/0.0/555/98           28 NW  AERO 28 NW  RMY 28  1/16  40/22/31/+6/0.00/0.0/540/95           28 SW  AERO 25 SW  RMY 27 1/17  40/29/35/+10/0.27/T/257/45            23 E   AERO 23 E   RMY 25 1/18  38/31/30/+10/0.29/T/.../..            30 ENE AERO 29 ENE RMY 26 1/19  44/30/37/+12/0.00/T/.../..            21 NNW AERO 20 NNW RMY 20 1/20  40/30/35/+10/T/0.0/.../..             17 NNW AERO 17 NNW RMY N/A 1/21  54/35/45/+20/T/0.0/.../..             29 W   AERO 29 W   RMY 28 1/22  46/36/41/+16/0.14/T/.../..            31 ENE AERO 30 ENE RMY N/A 1/23  36/33/35/+10/0.49/0.3/.../..          56 NE  AERO 58 NE  RMY N/A 1/24  40/32/36/+11/1.48/0.0/.../..          62 NE  AERO 60 NE  RMY 60 1/25  42/32/37/+12/..../0.0/.../..          41 WNW AERO 40 WNW RMY 38 1/26 Low temp since midnight is 36F; normal low is now 17F DAILY RECORDS FOR JANUARY 2017 1/12/17: NEW DAILY RECORD HIGH MAXIMUM TEMP. OF 59F,          PREVIOUS RECORD WAS 57F SET 1913 AND TIED IN 1975 1/12/17: NEW DAILY RECORD HIGH MINIMUM TEMP. OF 42F,          PREVIOUS RECORD WAS 40F SET 2006 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JANUARY 26 HIGH 68F IN 1950 [RECORD FOR MONTH] LOW -5F IN 1920 PRECIP 1.60 INS. IN 1958 SNOW 9.0 INS. IN 1898 WIND 90e MPH SE IN 1978 RECORDS FOR JANUARY 27 HIGH 63F IN 1974 LOW -12F IN 1924 PRECIP 1.59 INS. IN 1996 SNOWFALL 25.2 INS. IN 2015 [RECORD FOR MONTH] PEAK GUST 91 MPH SSE IN 1996 TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle