BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY-WEDNESDAY, JANUARY 7-8, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
 
ANOTHER CHILLY DAY ON BLUE HILL, WITH A WARMING
TREND EXPECTED.
 
The past two days have been categorized by bitter cold
and stiff westerly winds which have allowed wind chills
to sit well below zero. Tuesday's average temperature of
10 degrees represented a -16 degree departure from
our daily average temperature for this part of January at
26 degrees.
 
Yesterday's Observations (1/7/2014):
 
Yesterday 7 A.M.
Weather: Clear, few stratocumulus distant offshore.
Temperature: 9F; Dew Point: -11F; Wind: W at 21G31 kts
Sea-level pressure: 29.75 ins. Hg, steady, then increasing
Visibility: 35 miles
6-hr. min temp: 9F
Snow cover: Trace
BHO SA 1155 CLR 35 076/09/-11/2821G31/975/ FEW SC DSNT OFFSHR NE-SSE
THN HZ PK WND 2837/17/ 8/500 53045 MANUAL 60001/ ASOS 70021
MANUAL 70012 10025 20009
 
Yesterday 10 A.M. 
Weather: Clear, few cumulus fractus, few stratocumulus
distant offshore.
Temperature: 11F; Dew Point: -2F; Wind: W at 22G31 kts
Sea-level pressure: 29.90 ins. Hg, increasing, then more slowly
Visibility: 40 miles
BHO SA 1455 CLR 40 125/11/-2/2822G31/990/ FEW CUFRA ALQDS
FEW SC DSNT OFFSHR NE-SE THN HZ DSNT SW-WNW PK WND 2831/47 51049
 
Yesterday 1 P.M.  
Weather: Sky Clear
Temperature: 12F; Dew Point: -8F; Wind: W at 18G28 kts
Sea-level pressure: 29.92 ins. Hg, increasing, then more slowly
Visibility: 25 miles
6-hr max. temp: 12F
BHO SA 1755 CLR 25 132/12/-8/2718G28/992/ PK WND 2730/05/
8/000 ASOS 51007 10012 20009

Today's Observations (1/8/2014):

Today 7 A.M.
Weather: Clear, few stratocumulus distant offshore
Temperature: 5F; Dew Point: -7F; Wind: SW at 13 kts
Sea-level pressure: 30.38 ins. Hg, increasing, then more rapidly
Visibility: 30 miles, thin haze
6-hr. min temp: 3F
Snow cover: 0
BHO SA 1155 CLR 30 288/5/-7/2313/038/ FEW SC DSNT OFFSHR NNE-SSE
THN HZ/ 8/500 53020 10006 20003
 
Today 10 A.M. 
Weather: Few dense cirrus, scattered cirrus fibratus
Temperature: 13F; Dew Point: -4F; Wind: WSW at 11 kts
Sea-level pressure: 30.44 ins. Hg, rising, then more slowly
Visibility: 40 miles
BHO SA 1455 300 SCT 40 308/13/-4/2611/044/ FEW DNS CI NW
THN K LYR ALG HRZN W-NNE THN HZ/ 8/001 51023 
 
Today 1 P.M.  
Weather: Clear, few cirrus fibratus
Temperature: 20F; Dew Point: 1F; Wind: WSW at 8 kts
Sea-level pressure: 30.38 ins. Hg, steady then falling
Visibility: 40 miles
6-hr max. temp: 20F
BHO SA 1755 CLR 40 287/20/01/2608/038/ FEW CI E-W
THN K LYR ALG HRZN W-E/ 8/001 58021 10020 20005
 
WEATHER SUMMARY FOR TUESDAY, JANUARY 7, 2014
 
TEMPERATURE (DEGREES F)
MAX.....13    NORMAL.....34
MIN......6    NORMAL.....18
MEAN....10    NORMAL.....26
 
DEPARTURE FROM 30-YEAR NORMAL.......................-16
TOTAL DEPARTURE FOR THE MONTH.......................-66 [-9.6 DEGREES/DAY]
 
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............55  DEPARTURE.........+16
TOTAL HEATING UNITS FOR THE MONTH.............322  DEPARTURE.........+51     
TOTAL HEATING UNITS FOR THE SEASON...........2599  DEPARTURE.........+24
TOTAL HEATING UNITS LAST SEASON TO DATE......2292  DIFFERENCE.......+307
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..................44 WNW  AT 06:28 A.M.* 
                   AERO.......................46 WNW  AT 06:45 A.M.*       
                   ASOS.......................47 W    AT 06:25 A.M.      
                   DAVIS......................44 W    AT 06:25 A.M. RMY 42
FASTEST MILE FOR YESTERDAY....................36 WNW  AT 06:28 A.M.     
MAXIMUM 2-MINUTE ASOS AVERAGE.................33 WNW  AT 06:28 A.M.     
MAXIMUM 2-MINUTE DAVIS AVERAGE................32 W    AT 06:28 A.M.     
AVERAGE WIND SPEED AND DIRECTION............20.2 W
                   ASOS.....................20.0
                   DAVIS....................17.5 W [273 deg.]
* LAST OF SEVERAL 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..........1.72  DEPARTURE.............+0.74
                         ASOS..............2.02
TOTAL PRECIPITATION FOR THE YEAR...........1.72  DEPARTURE.............+0.74
                         ASOS..............2.02
 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M........0.0    DEPARTURE..............-0.5
TOTAL SNOWFALL FOR THE MONTH.............15.6    DEPARTURE.............+11.8
TOTAL SNOWFALL FOR THE SEASON............31.3    DEPARTURE.............+11.3
 
PRELIMINARY CLIMATE SUMMARY FOR JANUARY 2014 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust
RMY:  RMY = R.M. Young wind gust recording system added 8/9/2011
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
1/1   26/16/21/-6/0.00/0.0/.../..          25 W   AERO 25 MPH W   RMY 27
1/2   24/00/12/-15/..../../000/00          39 NNE AERO 39 MPH NNE RMY 39
1/3   12/-3/05/-21/.../../000/00           36 N   AERO 39 MPH N   RMY 34
1/4   25/-4/11/-15/..../../.../..          35 SSW AERO 37 MPH SSW RMY 38
1/5   42/23/33/+07/..../../.....           30 SE  AERO 32 MPH SE  RMY 42
1/6   57/25/41/+15/..../../.../..          41 S   AERO 46 MPH S   RMY 48
1/7   13/06/10/-16/0.00/00/.../..          44 WNW AERO 46 MPH WNW RMY 42
 
1/8 morning low temp: 3F; the normal low is now 18F                                
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JANUARY 7
HIGH 60F IN 1930
LOW -7F IN 1896
PRECIP 1.97 INS. IN 1977
SNOWFALL 16.0 INS. IN 1977
PEAK GUST 74 MPH NW IN 1968
 
RECORDS FOR JANUARY 8
HIGH 65 IN 2008
LOW -8 IN 1968
PRECIP 1.70 INS. IN 1958, 1979
SNOWFALL 12.5 INS. IN 1996
PEAK GUST 77 NNW IN 1958
 
RECORDS FOR JANUARY 9
HIGH 62 IN 1937
LOW  -9 IN 1968
PRECIP 3.00 INS. IN 1956
SNOWFALL 10.0 INS. IN 1904
PEAK GUST 101e SE IN 1978  (January record)
 
TODAY'S REPORT PREPARED BY: Brian Fitzgerald