BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, JANUARY 26, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
 
CONSIDERABLE DENSE HIGH CLOUDINESS WITH VERY LITTLE SUNSHINE AS 
INCREASINGLY GUSTY S-SSW WINDS BRING IN WARMER AIR AND TEMPERATURE 
WHICH CLIMBS TO HIGH 40'S
 
Dense cirrus clouds shut out most all of the bright sunshine today
although dimmed sunshine was visible most of the time. The S to SSW
winds increased with gusts past 40 MPH by noon and temperatures quickly
rose to the upper 40's today which was slightly more than 10 degrees
milder than yesterday.
 
Today's Observations:
 
7 A.M.
Weather: Scattered altostratus, broken dense cirrus, broken
higher cirrus, few stratus fractus ESE-SSE, few altocumulus
lenticularis distant E, heavy condensation
Temperature: 34F; Dew Point: 33F; Wind: S at 21G29 kts,
Wind: Peak wind S at 30 kts at 6:43 a.m. 
Sea-level pressure: 30.12 ins. Hg, falling then more rapidly
Visibility: 15 miles, thin fog
6-hr Max temp: 35F
6-hr Min temp: 27F
24-hr precip: none
24-hr snowfall: none
Snow depth: 5 ins.
BHO SA 1155 180 SCT E220 BKN 250 BKN 15 201/34/33/1921G29/012/
FEW STFRA ESE-SSE FEW ACSL E HVY CONDENSATION PK WND 1830/43/
8/612 4/005 58017 10035 20027 
 
10 A.M.
Weather: Overcast dense cirrus, few thin spots in overcast NE,
sun visible
Temperature: 40F; Dew Point: 34F; Wind: SSW at 22G31 kts,
Wind: Peak wind is 31 kts from SSW at 9:38 a.m.
Wind: Direction variable SSE-SW
Sea-level pressure: 30.06 ins. Hg, falling then more slowly
Visibility: 20 miles, hazy
BHO SA 1455 E200 OVC 20 178/40/34/2022G31/006/ DNS CI ALQDS
FEW THN SPTS IOVC NE SUN VSB PK WND 2031/38/ WND 16V23/
8/002 56023  
 
1 P.M.
Weather: Scattered altocumulus invading from W, dense high overcast
of cirrus and cirrostratus 
Temperature: 48F; Dew Point: 34F; Wind: SSW at 26G36 kts,
Wind: Peak wind is 38 kts from SSW at 12:35 p.m. 
Wind: Direction variable S-SW
Sea-level pressure: 29.93 ins. Hg, falling then more slowly
Visibility: 30 miles, except NE 20 distant haze all quadrants
6-hr Max temp: 49F
6-hr Min temp: 34F
6-hr precip: 0.00 ins.
6-hr snowfall: 0.0 ins.
BHO SA 1755 90 SCT E200 OVC 30 135/48/34/2126G36/993/
AC LYR INVDNG FRM W VSBY NE 20 DSNT HZ ALQDS PK WND 2038/35/
WND 17V23/ 8/057 56043 10049 20034
 
SUMMARY FOR MONDAY, JANUARY 25, 2016
  
TEMPERATURE (DEGREES F)
MAX.....37   NORMAL.....34
MIN.....20   NORMAL.....17
MEAN....29   NORMAL.....25
 
DEPARTURE FROM 30-YEAR NORMAL........................+4
TOTAL DEPARTURE FOR THE MONTH.......................+72 [+2.7 DEGREES/DAY]
 
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............36   DEPARTURE..........+1
TOTAL HEATING UNITS FOR THE MONTH.............917   DEPARTURE.........-72
TOTAL HEATING UNITS FOR THE SEASON...........2573   DEPARTURE........-720
TOTAL HEATING UNITS LAST SEASON TO DATE......3065   DIFFERENCE.......-492
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY...................21 SSW   AT   10:50 P.M. *                   
                   ASOS........................21 SSW   AT   10:46 P.M. 
                   DAVIS.......................19 NW    AT    5:14 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY.....................16 SSW   AT   10:47 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE..................16 SSW   AT   10:47 P.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE.................15 SSW   AT   10:39 P.M.  
AVERAGE WIND SPEED AND DIRECTION...............8.6 NW
                   ASOS........................9.1
                   DAVIS......................,8.0 W [280 Deg.]
* Additional earlier occurrences
          
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..........3.77  DEPARTURE.......+0.23
                         ASOS..............3.94
TOTAL PRECIPITATION FOR THE YEAR...........3.77  DEPARTURE.......+0.23 
                         ASOS..............3.94
 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.......-0.6
TOTAL SNOWFALL FOR THE MONTH...............14.3  DEPARTURE.......+0.4
TOTAL SNOWFALL FOR THE SEASON..............15.6  DEPARTURE......-14.3
 
PRELIMINARY CLIMATE SUMMARY FOR JANUARY CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/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
 
1/1   37/29/33/+6/0.00/0.0/005/01           29 W               RMY 29
1/2   37/27/32/+5/0.00/0.0/461/84           31 W               RMY N/A        
1/3   41/27/34/+8/0.00/0.0/501/91           28 W               RMY 29
1/4   30/10/20/-6/T/T/000/00                29 NNW             RMY 29
1/5   23/4/14/-12/0.00/0.0/552/100          28 NNW             RMY N/A
1/6   43/17/30/+4/0.00/0.0/553/100          24 SW              RMY 24
1/7   43/25/34/+8/0.00/0.0/521/94           21 SW              RMY N/A
1/8   40/28/34/+8/T/0.0/000/00              28 E   AERO 25 ENE RMY 25
1/9   39/36/38/+12/T/0.0/000/00             21 ENE AERO 20 ENE RMY N/A
1/10  58/38/48/+23/1.55/0.0/000/00          53 SSE AERO 55 SSE RMY 53
1/11  48/21/35/+10/0.00/0.0/559/100         43 W   AERO 45 WSW RMY N/A
1/12  35/19/27/+2/..../.../359/64           30 SE  AERO N/A    RMY N/A
1/13  30/17/24/-1/..../.../551/98           50 W   AERO 58 W   RMY 54
1/14  28/17/23/-2/T/T/.../..                26 W   AERO N/A    RMY 25
1/15  40/23/32/+7/0.00/0.0/.../..           26 ESE AERO 25 ESE RMY 23
1/16  41/32/37/+12/1.03/T/.../..            32 NNW AERO 32 NNW RMY 28
1/17  33/26/30/+5/..../.../.../..           29 WNW AERO 28 WNW RMY N/A
1/18  26/15/21/-4/..../.../.../..           50 W   AERO 50 W   RMY 47
1/19  22/13/18/-7/0.00/0.0/.../..           55 WNW AERO 59 W   RMY 55
1/20  30/15/23/-2/0.00/0.0/.../..           46 WNW AERO 47 WNW RMY 45
1/21  30/15/23/-2/0.00/0.0/.../..           38 WNW AERO 38 NW  RMY 35
1/22  28/14/21/-4/0.00/0.0/.../..           32 NW  AERO 32 NW  RMY N/A
1/23  30/18/24/-1/0.74/7.1/000/00           54 NE  AERO 56 NE  RMY 50
1/24  33/14/24/-1/T/T/.../..                34 N   AERO 37 N   RMY 29
1/25  37/20/29/+4/0/0/.../..                22 NW  AERO 22 NW  RMY N/A
                                             
1/26  morning low temp. since midnight: 27 deg; normal low now 17 deg. 
 
DAILY RECORDS FOR JANUARY 2016
 
**1/10/16: NEW DAILY RECORD MAXIMUM TEMPERATURE OF 58F, BREAKS
PREVIOUS RECORD OF 54F SET BACK IN 2000**
 
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: Robert Skilling