BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, FEBRUARY 10, 2016 
ALL TIMES ARE IN EASTERN STANDARD TIME

SNOW SHOWERS BEGIN ONCE MORE THIS MORNING,
SCANT ACCUMULATIONS BY MID DAY- 0.1 INCH

Snow showers began this morning during the 7:00 AM EST observation.
These light showers have continued to fall for over six hours,
with very little accumulation during this period. Light snow
showers and thin fog have kept visibility reduced to less than 5 miles 
for the majority of the day, with the sun dimly visible at times 
this morning.

By the 1:00 PM EST observation just 0.1 inches of new snow had
been measured with a liquid equivalent of 0.01 inches of water.
Temperatures had just risen above the freezing mark at 32F with
continued light snow showers.


Today's Observations:

7 A.M.
Weather: Snow showers begin 6:52 AM EST, overcast stratus
Temperature: 25F; Dew Point: 18F; Wind: S at 8 kts,
Sea-level pressure: 29.62 ins. Hg, rising, then more quickly
Visibility: 3 miles, snow showers and thin fog
6-hr Max temp: 25F 
6-hr Min temp: 21F
24-hr precip: Trace
24-hr snowfall: Trace
Snow depth: 12 ins.
BHO SA 1155 E10 OVC 3SW- 031/25/18/1708/962/ SW-B52 THN FG ALQDS 
NEW SNW PST 3 HRS TRACE/ 8/6// 4/012 53007 MANUAL 6000/ 10025 20021

10 A.M.
Weather: Snow showers, overcast stratus, sun dimly visible
Temperature: 29F; Dew Point: 26F; Wind: estimated SSE at 5 kts
Wind Speed: Light
Sea-level pressure: 29.62 ins. Hg, rising, then falling and lower
Visibility: 1 mile, snow showers
3-hr precip: 0.01 ins.
3-hr snowfall: 0.1 ins.
BHO SA 1455 E20 OVC 1SW- 030/29/26/E1605/962/ SUN DMLY VSBL 
NEW SNW PST 3 HRS 0.1 INS WND LGT/ 8/6// 58001 MANUAL 60001 

1 P.M.
Weather: Light snow shower, broken stratus fractus, broken 
nimbostratus
Temperature: 32F; Dew Point: 31F; Wind: SSW at 4 kts,
Wind: Light and variable
Sea-level pressure: 29.57 ins. Hg, falling then more quickly 
Visibility: 5 miles, except 15 miles NE-S 
6-hr Max temp: 32F
6-hr Min temp: 23F
6-hr precip: 0.01 inches
6-hr snowfall: 0.1 inches 
BHO SA 1755 E10 BKN 20 BKN 5SW- 012/32/31/E2104/957/ VSBY NE-S 15 
NEW SNW PST 6 HRS 0.1 INS WND LGT AND VRB/ 8/500 58018 ASOS 60001 
MANUAL 60001 10032 20023


SUMMARY FOR TUESDAY, FEBRUARY 9, 2016 
  
TEMPERATURE (DEGREES F)
MAX.....26   NORMAL.....36
MIN.....17   NORMAL.....18 
MEAN....22   NORMAL.....27

DEPARTURE FROM 30-YEAR NORMAL.........................-5
TOTAL DEPARTURE FOR THE MONTH........................+85 [+9.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............43   DEPARTURE..........+5
TOTAL HEATING UNITS FOR THE MONTH.............263   DEPARTURE.........-86
TOTAL HEATING UNITS FOR THE SEASON...........3005   DEPARTURE........-875
TOTAL HEATING UNITS LAST SEASON TO DATE......3776   DIFFERENCE.......-771

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................21 N   AT  3:27 A.M.                        
                   ASOS........................21 N   AT  6:22 A.M.     
                   DAVIS.......................18 N   AT  6:21 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY.....................15 N   AT  6:24 A.M.     
MAXIMUM 2-MINUTE ASOS AVERAGE..................16 N   AT  6:23 A.M.      
MAXIMUM 2-MINUTE DAVIS AVERAGE.................14 N   AT  6:22 A.M.      
AVERAGE WIND SPEED AND DIRECTION..............6.6 N
                   ASOS.......................6.4  
                   DAVIS......................5.8 NNW [334 Deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M...TRACE  DEPARTURE......-0.13
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........3.10  DEPARTURE......+1.89
                         ASOS..............3.14
TOTAL PRECIPITATION FOR THE YEAR...........6.87  DEPARTURE......+1.31  
                         ASOS..............7.08

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M........TRACE  DEPARTURE.......-0.5
TOTAL SNOWFALL FOR THE MONTH...............21.2  DEPARTURE......+16.8
TOTAL SNOWFALL FOR THE SEASON..............36.8  DEPARTURE.......-0.7

PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY CALENDAR DAY DATA
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

2/1   64/40/52/+26/0.00/0.0/.../..          36 WNW AERO 37 W   RMY 34
2/2   48/31/40/+14/0.00/0.0/.../..          23 NW  AERO 23 WNW RMY N/A
2/3   55/34/45/+19/0.80/0.0/000/00          55 SSE AERO 58 SSE RMY 53
2/4   55/39/47/+21/..../0.0/000/00          37 W   AERO 36 W   RMY 35
2/5   39/19/29/+3/..../12.5/000/00          37 NNW AERO 39 NNW RMY 35
2/6   35/17/26/0/0.00/0.0/.../..            25 SSW AERO 24 SSW RMY 23 
2/7   43/26/35/+8/0.00/0.0/.../..           35 ENE AERO 35 ENE RMY N/A
2/8   36/16/26/-1/..../.../000/00           53 NE  AERO 55 NE  RMY 53
2/9   26/17/22/-5/..../.../000/00           21 N   AERO 22 N   RMY N/A
 
2/10   morning low temp. since midnight 21F; normal now 18F

DAILY RECORDS FOR FEBRUARY 2016

-NONE SO FAR-

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated): 

RECORDS FOR FEBRUARY 10
HIGH 56F IN 1909
LOW -8F IN 1899
PRECIP 1.34 INS. IN 1909
SNOWFALL 12.1 INS. IN 1926
PEAK GUST 64 MPH W IN 2001

RECORDS FOR FEBRUARY 11
HIGH 60F IN 1981
LOW -10F IN 1899
PRECIP 1.07 INCHES IN 1955
SNOWFALL 9.6 INCHES IN 1933
PEAK GUST 95 MPH S IN 1981

TODAY'S REPORT PREPARED BY: Brian Fitzgerald