BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SUNDAY, FEBRUARY 1, 2015   ALL TIMES ARE IN EASTERN STANDARD TIME COLD START TO FEBRUARY AS A STORM HEADS INTO THE REGION Temperatures fell into the single digits as February got off to a cold start last night.  Distant high clouds has moved into the region  and various types of Cirrus clouds have begun to fill in as of the 10 o'clock observation. A low pressure system is approaching the region and the barometric pressure has begun falling from its earlier high.   PRELIMINARY STATS FOR JANUARY 2015 TEMPERATURE Deg. F Av. Max: 30.8 Av. Min: 15.4 Mean: 23.1 [-2.4] Corrected Mean: Max. for month: 51 on 4th Min. for month: -5 on 8th HEATING DEGREE DAY UNITS Total: 1293 [+67] Total for season: 3349 PRECIPITATION Total: 5.17 Total snowfall: 42.9 Additional data to be added in coming days Top 10 Snowiest Januarys 1) 56.3 in 1948 2) 48.2 in 2011 3) 48.0 in 1904 4) 47.6 in 1996 5) 46.0 in 1966 6) 44.8 in 2005 7) 44.5 in 1923 8) 42.9 in 2015  9) 38.3 in 1987 10) 35.6 in 1978 Today's Observations: 7 A.M. Weather: Scattered Cirrus, Temperature: 9F; Dew Point: 3F; Wind: WSW at 12 kts Sea-level pressure: 30.13 ins. Hg, increasing then increasing more slowly Visibility: 35 miles 6-hr max temp: 11F 6-hr min temp:  8F 24-hr precip: 0.00 in. 24 hr snowfall: 0.0 in. Total average snow depth on ground: 16 inches BHO SA 1155 250 SCT 35 202/9/3/2512/013/ 8/001 4//// 5//// 10011 20008 10 A.M. Weather: Thin Broken Cirrus/Cirrostratus/Cirrocumulus Temperature: 19F; Dew Point: 9F; Wind: W at 9 kts Sea-level pressure:  30.16 ins. Hg, increasing then decreasing        Visibility: 30 miles BHO SA 1455 250 –BKN 30 212/19/9/2809/016/ CLR SKY NW-NE VSBY NE 35 DSNT HZ ALQDS/ 8/006 53010 1 P.M. Weather: Thin broken cirrus Temperature: 26F; Dew Point: 10F; Wind: W at 14G20 kts Sea-level pressure:  30.10 ins. Hg, Falling then falling more rapidly        Visibility: 35 miles 6-hr max temp: 26F 6-hr min temp:  8F BHO SA 1755 250 –BKN 20 –BKN 35 192/26/10/2814G20/010/ FFEW CUFRA S-WSW FEW CCSL S VSBY WNW 45 DSNT HZ ALQDS/ 8/109 58020 10026 20008 SUMMARY FOR SATURDAY, JANUARY 31, 2015 TEMPERATURE (DEGREES F) MAX.....21   NORMAL.....34 MIN......7   NORMAL.....17 MEAN....14   NORMAL.....26 DEPARTURE FROM 30-YEAR NORMAL.........................-12 TOTAL DEPARTURE FOR THE MONTH.........................-61 [-2.4 DEGREES/DAY]   HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY..............51  DEPARTURE..........+12 TOTAL HEATING UNITS FOR THE MONTH............1288  DEPARTURE..........+62     TOTAL HEATING UNITS FOR THE SEASON...........3348  DEPARTURE.........-183 TOTAL HEATING UNITS LAST SEASON TO DATE......3531  DIFFERENCE........-167 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY..................52 NW     AT  2:11 P.M.                      ASOS.......................54 NW     AT  2:11 P.M.                    DAVIS......................48 WNW    AT  9:23 P.M. RMY 57 FASTEST MILE FOR YESTERDAY....................37 NW     AT  2:06 P.M.* MAXIMUM 2-MINUTE ASOS AVERAGE.................38 NW     AT  9:48 A.M.    MAXIMUM 2-MINUTE DAVIS AVERAGE................35 NW     AT  2:06 P.M.      AVERAGE WIND SPEED AND DIRECTION............26.1 NW                        ASOS.....................23.6                       DVIS.....................22.3 NW [296 degrees] * last of several occurrences... PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE.....-0.13                          ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........5.17  DEPARTURE.....+0.82                          ASOS..............5.46  TOTAL PRECIPITATION FOR THE YEAR...........5.17  DEPARTURE.....+0.82                          ASOS..............5.46  SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE......-0.5 TOTAL SNOWFALL FOR THE MONTH...............42.9  DEPARTURE.....+25.8 TOTAL SNOWFALL FOR THE SEASON..............53.9  DEPARTURE.....+20.8  PRELIMINARY CLIMATE SUMMARY FOR JANUARY CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/SUN(MIN.)/SUN(%)/ PEAK GUST/RMY 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 1/1  31/18/25/-2/0.00/0.0/544/99              29 SSW RMY 30 1/2  37/26/32/+5/0.00/0.0/314/57              35 WSW RMY 38 1/3  34/21/28/+2/0.67/2.5/017/03              25 SE  RMY 26   1/4  51/33/42/+16/0.48/0.0/000/00             30 SSW RMY N/A 1/5  46/13/30/+4/0.00/0.0/542/98              48 W   RMY 54 1/6  15/10/13/-13/0.02/0.4/000/00             29 W   RMY N/A 1/7  22/01/12/-14/0.01/0.3/394/71             43 WNW RMY 47  1/8  16/-5/6/-20/0.00/0.0/539/97              39 WNW RMY N/A 1/9  27/16/22/-4/0.08/0.9/201/36              35 WSW RMY 38  1/10 22/11/17/-8/0.00/0.0/541/97              26 WNW RMY 27 1/11 31/9/20/-5/45/0.00/0.0/123/22            26 SSW RMY N/A 1/12 36/31/34/+9/0.23/T/000/00                29 NNW RMY N/A 1/13 33/11/22/-3/0.00/0.0/524/93              30 NNW RMY 29 1/14 22/11/17/-8/T/T/000/00                   18 NNW RMY 16 1/15 27/20/24/-1/0.09/0.8/000/00              20 WSW RMY 22 1/16 35/12/24/-1/T/T/341/60                   46 WSW RMY 50 1/17 21/5/13/-12/0.00/0.0/558/98              30 WNW RMY N/A 1/18 50/19/35/+10/0.16/0.0/000/00             47 SE  RMY 52 1/19 44/28/36/+11/T/0.0/304/53                33 W   RMY 36 1/20 36/23/30/+5/0.00/0.0/495/86              28 W   RMY 28 1/21 30/17/24/-1/0.00.0.0/358/62              21 WNW RMY N/A 1/22 36/25/31/+6/T/T/.../..                   20 WNW RMY 20 1/23 36/18/27/+2/0.00/0.0/.../..              25 SSW RMY 26 1/24 32/27/30/+5/0.84/5.0/000/00              24 SSW RMY N/A 1/25 34/17/26/+1/0.00/0.0/.../..              31 W   RMY 33 1/26 26/9/18/-7/0.50/5.6/.../..               45 N   RMY N/A 1/27 17/10/14/-11/1.94/25.2/000/00            51 N   RMY 52 1/28 22/8/15/-10/T/T/.../..                   30 NW  RMY N/A 1/29 33/11/22/-3/0.00/0.0/.../..              18 NW  RMY N/A 1/30 32/15/24/-2/.../.../000/00               45 NW  RMY 49 1/31 21/7/14/-12/0.00/0.00/.../.../           52 NW  RMY 57 DAILY RECORDS FOR JANUARY 2015 -NEW DAILY RECORD SNOWFALL FOR 27 JANUARY 2015 SNOWFALL 25.2 INS. IN 2015 [NEW RECORD FOR THE MONTH] Surpasses previous record of 11.7 inches in 2011 for the date, and surpasses previous record for the month of 19.0 inches on 20 January, 1978   DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):     RECORDS FOR FEBRUARY 1 HIGH 65F IN 1989 LOW -9F IN 1920 PRECIP 1.30 INS. IN 1898 SNOWFALL 11.0 INS. IN 1898 PEAK GUST 66e MPH SSW IN 1951 RECORDS FOR FEBRUARY 2 HIGH 55F IN 1951, 1973 LOW -12F IN 1961 PRECIP 1.91 INS. IN 1999 SNOWFALL 5.5 INS. IN 1916, 1934 PEAK GUST 92 MPH SW IN 1970 TODAY'S REPORT PREPARED BY: Robert Millette/Robert Skilling