BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SUNDAY, JANUARY 26, 2020 ALL TIMES ARE IN EASTERN STANDARD TIME PARTLY CLOUDY SKIES AND FAIR WEATHER ATOP GREAT BLUE HILL.... Today we observed decent visibility, with 70 miles being seen at the 10 A.M. observation. Skies were partly cloudy on average. Wind is westerly, currently clocking in at almost 20 mph. The highest gust so far today is 30 mph this afternoon. Rain amounts from yesterday were measured to be 0.57 inches, all of it confirmed to have fallen yesterday. Topics of concern are the rain and snowfall amounts for this month. The rainfall total is 1.46 inches, 2.08 inches below the average rain total. Snowfall for this month is considerably low, being only 4.2 inches. That is 9.7 inches below the normal monthly snowfall total. The high so far today is 46F, 12 degrees above the normal high of 34F. The low since midnight is 37F, 20 degrees above the normal low of 17F. Today's Observations: 7 A.M. Weather: Broken stratocumulus Temperature: 38F; Dew Point: 37F; Wind: W at 14 kts Sea-level pressure: 29.70 ins. Hg, rising then more slowly Visibility: 65 miles 6-hr Max temp: 48F 6-hr Min temp: 38F 24-hr Precip:  0.57 ins. 24-hr Snowfall: 0.0 ins. BHO SA 1155 E20 BKN 65 059/38/37/2714/970/ 8/400 70057 53007 10048 20038 10 A.M. Weather: Scattered stratocumulus Temperature: 40F; Dew Point: 33F; Wind: W at 12G21 kts Sea-level pressure: 29.71 ins. Hg, falling then rising Visibility: 70 miles 3-hr Precip:  0.00 ins. 3-hr Snowfall: 0.0 ins. BHO SA 1455 20 SCT 70 060/40/33/2712G21/971/ 8/400 51004 1 P.M. Weather: Scattered stratocumulus and cirrostratus Temperature: 45F; Dew Point: 30F; Wind: W at 13G24 kts Sea-level pressure: 29.65 ins. Hg, falling steadily Visibility: 65 miles 6-hr Max temp: 46F 6-hr Min temp: 37F 6-hr Precip:  0.00 ins. 6-hr Snowfall: 0.0 ins. BHO SA 1755 20 SCT 250 SCT 65 040/45/30/2613G24/965/ 8/408 56020 10046 20037 SUMMARY FOR SATURDAY, JANUARY 25, 2020 TEMPERATURE (DEGREES F) MAX.....50   NORMAL.....34 MIN.....36   NORMAL.....17 MEAN....43   NORMAL.....25 DEPARTURE FROM 30-YEAR NORMAL.....................+18 TOTAL DEPARTURE FOR THE MONTH....................+197 [+7.7 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY...............22  DEPARTURE.......-18 TOTAL HEATING UNITS FOR THE MONTH..............792  DEPARTURE......-197 TOTAL HEATING UNITS FOR THE SEASON............3043  DEPARTURE......-250 TOTAL HEATING UNITS LAST SEASON TO DATE.......3244  DEPARTURE......-201 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY....................41 ESE AT  8:26 P.M.                      AERO.........................41 ESE AT  8:26 P.M.                      ASOS.........................38 E   AT  6:48 P.M.                    DAVIS........................41 ESE AT  6:34 P.M. RMY 40 FASTEST MILE FOR YESTERDAY......................28 ESE AT  6:38 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................28 ESE AT  8:22 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................30 E   AT  6:42 P.M. AVERAGE WIND SPEED AND DIRECTION..............17.2 E                                    ASOS.......................16.8                    DAVIS......................16.8 E [110 deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.57  DEPARTURE......+0.43                          ASOS..............0.62 TOTAL PRECIPITATION FOR THE MONTH..........1.46  DEPARTURE......-2.08                          ASOS..............1.54 TOTAL PRECIPITATION FOR THE YEAR...........1.46  DEPARTURE......-2.08                          ASOS..............1.54 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.......-0.6 TOTAL SNOWFALL FOR THE MONTH................4.2  DEPARTURE.......-9.7 TOTAL SNOWFALL FOR THE SEASON..............24.2  DEPARTURE.......-5.7 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 01/01  38/30/34/+7/..../0.0/..../..           39 W   AERO 38 W   RMY 41 01/02  46/29/38/+11/0.00/0.0/..../..          28 SW  AERO 28 SW  RMY 30 01/03  46/40/43/+17/0.00/0.0/..../..          21 SW  AERO 18 SW  RMY N/A 01/04  46/36/41/+15/..../0.0/..../..          16 NNW AERO 16 NNW RMY N/A 01/05  36/24/30/+4/..../0.5/..../..           43 NW  AERO 46 NW  RMY 43 01/06  33/23/28/+2/T/T/..../..                26 W   AERO 21 W   RMY N/A 01/07  38/29/34/+8/..../0.4/.../..            30 WSW AERO 28 WSW RMY N/A 01/08  39/22/31/+5/..../0.4/.../..            50 W   AERO 46 WNW RMY 47 01/09  28/16/22/-4/..../0.0/.../..            43 WNW AERO 40 WNW RMY N/A 01/10  48/23/36/+11/T/..../0.0/.../..         37 SW  AERO 37 SW  RMY 39 01/11  65/46/56/+31/..../0.0/.../..           53 SSW AERO 53 SSW RMY N/A           01/12  68/36/52/+27/..../0.0/.../..           60 SSW AERO 62 SSW RMY N/A 01/13  39/31/35/+10/0.01/T/.../..             21 NE  AERO 20 NE  RMY N/A 01/14  38/31/35/+10/0.01/0.0/.../..           16 W   AERO 15 W   RMY N/A 01/15  48/35/42/+17/0.00/0.0/.../..           24 W   AERO 23 W   RMY 24 01/16  42/24/33/+8/0.06/T/.../..              54 W   AERO 52 W   RMY 59     01/17  24/10/17/-8/0.00/0.0/..../..           50 NW  AERO 48 NW  RMY N/A 01/18  28/8/18/-7/0.35/2.8/..../..            28 WSW AERO 24 ESE RMY N/A 01/19  40/21/31/+6/0.02/0.2/..../..           44 W   AERO 44 W   RMY 42 01/20  26/12/19/-6/0.00/0.0/..../..           33 NW  AERO 32 NW  RMY N/A 01/21  24/10/17/-8/0.00/0.0/..../..           22 NW  AERO 21 NW  RMY N/A 01/22  34/13/24/-1/0.00/0.0/..../..           16 SW  AERO 16 SW  RMY N/A 01/23  46/26/36/+11/0.00/0.0/..../..          21 SW  AERO 20 SW  RMY 19 01/24  44/31/38/+13/0.00/0.0/..../..          21 ENE AERO 17 ENE RMY N/A 01/25  50/36/43/+18/0.57/0.0/..../..          41 ESE AERO 41 ESE RMY 40 01/26 The low since midnight is 37F, daily normal minimum is 17F DAILY RECORDS FOR JANUARY 1/11/20: DAILY RECORD MAXIMUM TEMPERATURE OF 65F,          BREAKS PREVIOUS RECORD OF 60F SET IN 1975. 1/11/20: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 46F,          BREAKS PREVIOUS RECORD OF 40F SET IN 1983. 1/12/20: DAILY RECORD MAXIMUM TEMPERATURE OF 68F,          BREAKS PREVIOUS RECORD OF 60 SET IN 2018.          TIES HIGHEST MAXIMUM TEMPERATURE FOR JANUARY,          MATCHES 68F SET ON 1/26/1950. 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: Benjamin Turner