BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JANUARY 13, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
 
A CALM AND CLEAR MONDAY FEATURING ABOVE AVERAGE TEMPERATURES
CONTINUES THE JANUARY THAW.
 
Gusty westerly winds yesterday have relaxed today as the flow
has shifted toward the south under abundant sunshine. By mid
day today skies were partly cloudy with only high cirrus to be found
ahead of a weak system likely bringing more rain to our region by tomorrow.
 
Today's Observations:
 
7 A.M.
Weather: Clear, few thin altostratus.
Temperature: 31F; Dew Point: 24F; Wind: SW at 10 kts
Sea-level pressure: 30.10 ins. Hg, increasing, then steady
Visibility: 35, hazy
6-hr. min temp: 30F
BHO SA 1155 CLR 35 193/31/24/2310/010/ THN AS DSNT NNE
THN HZ DSNT WSW-NNE 8/010 51016 10032 20030
 
10 A.M. 
Weather: Scattered cirrus fibratus, few cirrocumulus and dense cirrus
Temperature: 38F; Dew Point: 27F; Wind: SSW at 8 kts
Sea-level pressure: 30.11 ins. Hg, increasing, then steady
Visibility: 50 miles 
BHO SA 1455 250 SCT 50 198/38/27/2008/011/ FEW CICU SE-WNW FEW DNS 
CI SE-NW DRK K LYR ALG HRZN SSW-NNE 8/001 51005
 
1 P.M.  
Weather: Scattered dense cirrus, broken cirrus fibratus
Temperature: 48F; Dew Point: 27F; Wind: S at 10 kts
Sea-level pressure: 30.04 ins. Hg, steady, then decreasing 
Visibility: 40 miles
6-hr max. temp: 49F
BHO SA 1755 200 SCT E250 BKN 40 174/48/27/1910/004/ SCT DNS CI ALQDS
DRK K LYR ALG HRZN SSW-NNE/ 8/001 58024 10049 20031
 
WEATHER SUMMARY FOR SUNDAY, JANUARY 12, 2014
 
TEMPERATURE (DEGREES F)
MAX.....51    NORMAL.....34
MIN.....32    NORMAL.....17
MEAN....42    NORMAL.....25
 
DEPARTURE FROM 30-YEAR NORMAL.......................+17
TOTAL DEPARTURE FOR THE MONTH.......................-29 [-2.6 DEGREES/DAY]
 
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............23  DEPARTURE.........-17
TOTAL HEATING UNITS FOR THE MONTH.............498  DEPARTURE.........+30     
TOTAL HEATING UNITS FOR THE SEASON...........2775  DEPARTURE..........+2
TOTAL HEATING UNITS LAST SEASON TO DATE......2432  DIFFERENCE.......+343
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..................41 W    AT   11:06 A.M.  
                   AERO.......................44 W    AT   11:05 A.M.         
                   ASOS.......................45 W    AT   11:09 A.M.      
                   DAVIS......................40 WNW  AT   12:25 P.M. RMY 42
FASTEST MILE FOR YESTERDAY....................30 W    AT   12:07 P.M.        
MAXIMUM 2-MINUTE ASOS AVERAGE.................31 W    AT   12:08 P.M.       
MAXIMUM 2-MINUTE DAVIS AVERAGE................29 WNW  AT   11:43 A.M.     
AVERAGE WIND SPEED AND DIRECTION.............20.4 W 
                   ASOS......................20.1
                   DAVIS.....................17.4 W [274 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..........2.48  DEPARTURE........+0.78 
                         ASOS..............2.86
TOTAL PRECIPITATION FOR THE YEAR...........2.48  DEPARTURE........+0.78
                         ASOS..............2.86
 
 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.........-0.6
TOTAL SNOWFALL FOR THE MONTH...............15.9  DEPARTURE.........+9.1
TOTAL SNOWFALL FOR THE SEASON..............31.6  DEPARTURE.........+8.8 
 
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/-6/0.00/0.0/505/92          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/.../../270/49           36 N   AERO 39 MPH N   RMY 34
1/4  25/-4/11/-15/..../../545/99          35 SSW AERO 37 MPH SSW RMY 38
1/5  42/23/33/+07/..../../259 47          30 SE  AERO 32 MPH SE  RMY 42
1/6  57/25/41/+15/..../../006/01          41 S   AERO 46 MPH S   RMY 48
1/7  25/06/16/-10/0.00/0.0/555/100        44 WNW AERO 46 MPH WNW RMY 42
1/8  21/3/12/-14/0.00/0.0/550/99          28 WSW AERO 29 MPH WSW RMY N/A
1/9  28/13/21/-5/0.00/0.0/.../..          23 WNW AERO 24 MPH WNW RMY 27
1/10 37/17/27/+2/..../0.3/000/00          17 SSW AERO 18 MPH SW  RMY N/A     
1/11 57/37/47/+22/..../0.0/000/00         50 S   AERO 59 MPH S   RMY 59
1/12 51/32/42/+17/0.00/0.0/.../..         41 W   AERO 44 MPH W   RMY 42
 
1/13 morning low temp: 30F; the normal low is now 17F                              
 
DAILY RECORDS FOR JANUARY 2014
None so far.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JANUARY 13
HIGH 57F IN 1890,1932
LOW -10F IN 1912,1914
PRECIP 1.54 INS. IN 1979
SNOWFALL 12.6 INS. IN 1964
PEAK GUST 74 MPH NE IN 1964
 
RECORDS FOR JANUARY 14
HIGH 65F IN 1995
LOW -12F IN 1914
PRECIP 1.45 INS. IN 2008
SNOWFALL 10.3 INS. IN 2008
PEAK GUST 68 MPH WNW IN 1976, S IN 2005
 
TODAY'S REPORT PREPARED BY: Brian Fitzgerald