BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY WEDNESDAY, FEBRUARY 6, 2019 ALL TIMES ARE IN EASTERN STANDARD TIME FAIR WEATHER AND CLEAR SKIES THIS MORNING LEAD TO INCREASING AFTERNOON CLOUDS.... Clouds increased since this morning, with skies becoming fully overcast following the 1 P.M. observation. Visibility  was good today, with 80 miles being observed at 7 A.M. and  10 A.M. Despite the unseasonably high temperatures yesterday,  no records were set. The high for yesterday was 62F, which is 3 degrees less than the record high of 65; set in 1991. The  high so far today is 39F, 4 degrees above the normal of 35F. The low since midnight is 28F, 11 degrees above the normal  minimum of 17F.     PRELIMINARY STATS FOR JANUARY 2019 TEMPERATURE, Deg. F Avg. Max. 34.3 [+0.5] Avg. Min. 17.9 [+0.8] Mean      26.1 [+0.6] 24-hour corrected mean: 26.6 Max. for month: 57F on  24th Min. for month: 32F on  5th HEATING DEGREE DAYS Total heating units:   1200 [-26] Total for the season:  3496 [-35] Total for last season: 3321 PRECIPITATION, Inches Total: 5.35 [-0.18] Greatest in 24 hrs: N/A SNOWFALL, Inches Total: 4.7 [-12.4] Greatest in 24 hrs: N/A  WIND, mph Avg. uncorrected wind speed: 13.4 Avg. corrected wind speed: 13.7 Prevailing wind direction: NW at 19% Peak gust and direction: 77 S on 24th   SUNSHINE: Campbell-Stokes card minutes: 8988 minutes of possible 17130 or 52% Astronomical total minutes:   9273 minutes of possible 17650 or 53% Today's Observations: 7 A.M. Weather: Scattered cirrus, few cumulus offshore Temperature: 29F; Dew Point: 20F; Wind: N at 8G12 kts Sea-level pressure: 30.21 ins. Hg, rising steadily Visibility: 80 miles 6-hr Max temp: 38F 6-hr Min temp: 28F 24-hr Precip: 0.00 ins. 24-hr snowfall: 0.0 ins. Snow depth: 0 ins.  BHO SA 1155 250 SCT 80 230/29/20/3608G12/021/ FEW CU  OFFSHR/ 8/102 52027 10038 20028    10 A.M. Weather: Scattered cirrostratus, few cumulus NE-S  Temperature: 35F; Dew Point: 24F; Wind: NE at 8G18 kts Sea-level pressure: 30.15 ins. Hg, rising steadily Visibility: 80 miles 3-hr Precip: 0.00 ins. BHO SA 1455 250 SCT 80 211/35/24/0608G16/015/ FEW CU  NE-S/ 8/105 53019 1 P.M. Weather: Scattered stratocumulus, broken cirrostratus Temperature: 37F; Dew Point: 26F; Wind: NE at 10G14 kts Sea-level pressure: 30.12 ins. Hg, falling steadily Visibility: 75 miles 6-hr Max temp: 39F 6-hr Min temp: 28F 6-hr Precip:  0.00 ins. 6-hr snowfall: 0.0 ins.  Snow depth: 0 ins. BHO SA 1755 30 SCT E250 BKN 75 199/37/26/0610G14/012/  8/406 56012 10039 20028 SUMMARY FOR TUESDAY, FEBRUARY 5, 2019  TEMPERATURE (DEGREES F) MAX.....62   NORMAL.....35 MIN.....39   NORMAL.....17 MEAN....51   NORMAL.....26 DEPARTURE FROM 30-YEAR NORMAL.......................+25 TOTAL DEPARTURE FOR THE MONTH.......................+31 [+6.0 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY..............14   DEPARTURE........-25 TOTAL HEATING UNITS FOR THE MONTH.............164   DEPARTURE........-31 TOTAL HEATING UNITS FOR THE SEASON...........3660   DEPARTURE........-66 TOTAL HEATING UNITS LAST SEASON TO DATE......3507   DIFFERENCE......+153 PEAK GUST AND AVERAGE WIND SPEED (MPH)  PEAK WIND GUST FOR YESTERDAY....................30 WNW AT  7:10 P.M.                    AERO.........................29 WNW AT  6:54 P.M.                    ASOS.........................32 WNW AT  7:03 P.M.                     DAVIS........................31 WNW AT  7:11 P.M. RMY 32 FASTEST MILE FOR YESTERDAY......................23 WNW AT  7:00 P.M.  MAXIMUM 2-MINUTE ASOS AVERAGE...................22 NW  AT  7:03 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..................23 NW  AT  7:02 P.M. AVERAGE WIND SPEED AND DIRECTION.............14.9 SW                    ASOS......................15.1                    DAVIS.....................14.9 W [261 deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE.......-0.14                          ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........0.00  DEPARTURE.......-0.68                          ASOS..............0.00 TOTAL PRECIPITATION FOR THE YEAR...........5.35  DEPARTURE.......+0.32                          ASOS..............5.48 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE........-0.5 TOTAL SNOWFALL FOR THE MONTH................0.0  DEPARTURE........-2.5 TOTAL SNOWFALL FOR THE SEASON..............12.4  DEPARTURE.......-23.2 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 54/29/42/+15/0.37/0.0/386/72         53 W   AERO 53 W   RMY 54 01/02 34/24/29/+2/0.00/0.0/432/81          22 NW  AERO 22 NW  RMY N/A 01/03 42/28/35/+9/0.01/T/228/43            28 WNW AERO 30 WNW RMY 30 01/04 43/30/37/+11/0.00/0.0/354/66         29 SW  AERO 29 SW  RMY 29 01/05 41/32/37/+11/1.19/000/000/00         26 NE  AERO 25 NNW RMY 27 01/06 42/21/32/+6/0.00/T/300/56            42 NW  AERO 46 NW  RMY 50 01/07 26/14/20/-6/.../.../474/88 37 NW  AERO 41 NW  RMY N/A 01/08 40/24/32/+6/.../.../000/00           24 SSE AERO 23 SSE RMY N/A 01/09 42/31/37/+11/.../.../084/16          44 W   AERO 46 WNW RMY 45 01/10 32/20/26/+1/T/T/090/17               37 NW  AERO 41 NW  RMY 43 01/11 26/12/19/-6/0.00/0.0/366/68          36 WNW AERO 37 WNW RMY 38 01/12 26/9/18/-7/0.00/0.0/486/89           32 NW  AERO 32 NW  RMY 29 01/13 25/11/18/-7/0.00/0.0/456/84          18 NNW AERO 16 NW  RMY N/A 01/14 27/20/24/-1/0.00/0.0/120/22          20 NNE AERO 17 N   RMY N/A 01/15 34/18/26/1/0.00/0.0/402/73 22 NW  AERO 21 NNW RMY N/A 01/16 34/23/29/+4/0.00/0.0/270/47          33 W   AERO 32 W   RMY 35 01/17 27/13/20/-5/0.00/0.0/480/87          30 NNW AERO 28 NW  RMY N/A 01/18 40/21/31/+6/0.00/0.0/156/28          18 WNW AERO 18 WNW RMY N/A  01/19 31/24/28/+3/.../1.6/198/36           30 E   AERO 30 E   RMY N/A 01/20 33/3/18/-7/.../.../000/00            39 ENE AERO 43 ENE RMY 39 01/21 3/-2/1/-24/0.00/0.0/348/62           32*WNW AERO 41 WNW RMY M 01/22 24/0/12/-13/0.00/0.0/522/93          28 NW  AERO 30 NW  RMY 29 01/23 46/15/31/+6/0.00/0.0/000/00          37 SSW AERO 39 SSW RMY N/A 01/24 57/31/44/+19/1.44/0.0/000/00         77 S   AERO 79 S   RMY N/A 01/25 37/23/30/+5/0.00/0.0/378/66          41 WNW AERO 46 WNW RMY N/A 01/26 33/17/25/0/0.00/0.0/534/94           25 W   AERO 25 W   RMY 27         01/27 44/24/34/+9/0.00/0.0/480/84          39 S   AERO 39 S   RMY 41 01/28 30/19/28/+3/..../.../348/60          28 NW  AERO 28 NW  RMY N/A 01/29 32/19/26/+1/..../.../072/13          22 SE  AERO 21 E   RMY N/A 01/30 36/3/20/-6/..../0.5/504/88           52 W   AERO 53 W   RMY 57  01/31 14/-2/6/-20/0.00/0.0/570/99          33 WNW AERO 35 WNW RMY N/A *Official gust chart reading low on 1/21/2019 PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 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 02/01 19/5/12/-14/0.00/0.0/.../..          29 W   AERO 28 W   RMY N/A 02/02 30/7/19/-7/0.00/0.0/.../..           32 WSW AERO 32 WSW RMY 31 02/03 38/27/26/+7/0.00/0.0/.../..          26 S   AERO 25 S   RMY N/A 02/04 59/33/46/+20/0.00/0.0/.../..         25 SSW AERO 28 SSW RMY N/A 02/05 62/39/51/+25/0.00/0.0/.../..         30 WNW AERO 29 WNW RMY 32 02/06 Low temp since midnight is 28F; normal low is 18F   DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR FEBRUARY 6 HIGH 54F IN 1909 LOW -10F IN 1895 PRECIP 1.88 INS. IN 1896 SNOWFALL 13.0 INS. IN 1978 [BLIZZARD OF 1978] PEAK GUST 84e MPH NE IN 1978 RECORDS FOR FEBRUARY 7 HIGH 51F IN 1951,1953 LOW -8F IN 1910 PRECIP 2.12 INS. IN 1983 SNOWFALL 17.1 INS. IN 1978 [BLIZZARD OF 1978] PEAK GUST 87e MPH SSE IN 1951 TODAY'S REPORT PREPARED BY: Benjamin Turner