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

DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, MARCH 23, 2016 
ALL TIMES ARE IN EASTERN STANDARD TIME

LIGHT RAIN SHOWERS THIS MORNING, 
TEMPS RISE TOWARD 60F THIS AFTERNOON

Following a clear, windy and seasonable Tuesday, the flow
shifted toward the SW this morning bringing a much milder
air mass. Light rain showers moved through this morning as 
well bringing a scant 0.01 inches of new precipitation.

By today's 1:00 PM EST observation temperatures had risen 
to a maximum so far of 59F with overcast skies. Winds had
shifted to the W and were steady at 9 knots. Light distant
haze had reduced visibility to 40 miles in all directions.


Today's Observations:

7 A.M.
Weather: Overcast altostratus, showers in the vicinity SW-W,
showers distant NE-SE
Temperature: 48F; Dew Point: 32F; Wind: SW at 15 kts
Sea-level pressure: 29.90 ins. Hg, falling, then rising,
but lower than 3 hrs ago
Visibility: 70 miles, except 30 miles NE-SE, 20 miles SW-W,
obscured by showers
6-hr Max temp: 48F 
6-hr Min temp: 43F
24-hr snowfall: 0.0 ins.
24-hr precip: 0.00 ins.  
snow depth: Trace
BHO SA 1155 E90 OVC 70 124/48/32/2215/990/ VSBY NE-SE 30 MI 
SW-W 20 MI SHWRS DSNT NE-SE VCSH SW-W/ 8/02/ 55002 10048 20043

10 A.M.
Weather: Broken altocumulus, overcast altostratus,
showers distant NNE-E
Temperature: 48F; Dew Point: 40F; Wind: SW at 10G17 kts,
Sea-level pressure: 29.92 ins. Hg, rising, then more quickly
Visibility: 40 miles, thin fog, distant showers
3-hr precip: 0.01 ins.
BHO SA 1455 E70 BKN 100 OVC 40 132/48/40/2310G17/992/ SHWRS 
DSNT NNE-E THN FG ALQDS/ 8/02/ 53008 ASOS 60002 MANUAL 60001

1 P.M.
Weather: Broken altostratus, overcast cirrostratus,
few altocumulus lenticularis distant NE 
Temperature: 58F; Dew Point: 38F; Wind: W at 9 kts,
Sea-level pressure: 29.91 ins. Hg, falling, then more slowly
Visibility: 40 miles, light distant haze
6-hr Max temp: 59F 
6-hr Min temp: 44F
6-hr precip: 0.01 ins.
BHO SA 1755 E140 BKN 200 OVC 40 129/58/38/2609/991/ FEW ACSL 
DSNT NE LGT DSNT HZ ALQDS/ 8/017 56003 ASOS 60002 MANUAL 60001 
10059 20044  


SUMMARY FOR TUESDAY, MARCH 22, 2016 
  
TEMPERATURE (DEGREES F)
MAX.....48   NORMAL.....46
MIN.....28   NORMAL.....28 
MEAN....38   NORMAL.....37

DEPARTURE FROM 30-YEAR NORMAL.........................+1
TOTAL DEPARTURE FOR THE MONTH.......................+142 [+6.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............27   DEPARTURE..........-1
TOTAL HEATING UNITS FOR THE MONTH.............540   DEPARTURE........-142
TOTAL HEATING UNITS FOR THE SEASON...........4223   DEPARTURE.......-1027
TOTAL HEATING UNITS LAST SEASON TO DATE......5467   DIFFERENCE......-1244

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................33 W   AT  9:08 A.M.
                   ASOS........................36 WSW AT  3:02 P.M. 
                   DAVIS.......................34 WSW AT  3:01 P.M. RMY 36
FASTEST MILE FOR YESTERDAY.....................28 SSW AT  8:03 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE..................28 SSW AT  8:00 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE.................26 SSW AT  8:00 P.M.
AVERAGE WIND SPEED AND DIRECTION.............16.2 W 
                   ASOS......................15.9    
                   DAVIS.....................14.3 WSW [254 Deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE......-0.19
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........2.71  DEPARTURE......-1.20
                         ASOS..............2.74
TOTAL PRECIPITATION FOR THE YEAR..........12.08  DEPARTURE......-0.25 
                         ASOS.............12.70

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)  
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.......-0.3
TOTAL SNOWFALL FOR THE MONTH................4.4  DEPARTURE.......-5.6
TOTAL SNOWFALL FOR THE SEASON..............42.5  DEPARTURE......-15.0

PRELIMINARY CLIMATE SUMMARY FOR MARCH 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

3/1   45/30/38/+7/0.00/0.0/602/89           54 W   AERO 60 W   RMY 53
3/2   52/21/37/+6/0.41/0.0/204/30           44 WNW AERP 47 NW  RMY 42
3/3   34/16/25/-7/0.00/0.0/641/94           30 WNW AERO 36 WNW RMY N/A
3/4   30/24/27/-5/..../.../000/00           32 N   AERO 38 N   RMY 34
3/5   35/20/28/-4/0.00/0.0/536/78           31 N   AERO 36 N   RMY N/A
3/6   40/25/33/+1/0.00/0.0/593/86           21 SSE AERO 21 SSE RMY N/A
3/7   49/29/39/+6/0.00/0.0/173/25           43 SSW AERO 48 SSW RMY 45
3/8   55/35/45/+12/0.00/0.0/647/93          23 S   AERO 24 S   RMY N/A
3/9   75/38/57/+24/0.00/0.0/594/85          32 S   AERO 36 S   RMY 33
3/10  64/50/57/+24/..../0.0/000/00          31 NNW AERO 38 NNW RMY 32
3/11  56/38/47/+13/T/0.0/331/47             28 NNW AERO 36 NNW RMY 29
3/12  58/31/45/+11/0.00/0.0/650/92          30 SW  AERO 33 SW  RMY 30 
3/13  63/46/55/+21/0.00/0.0/.../..          32 NW  AERO 35 NW  RMY 30
3/14  46/36/41/+6/..../T/000/00             32 E   AERO 33 E   RMY N/A
3/15  45/39/42/+7/..../0.0/000/00           36 ENE AERO 38 ENE RMY 34
3/16  48/39/44/+9/..../0.0/.../..           25 E   AERO 28 E   RMY N/A
3/17  63/40/52/+16/..../0.0/.../..          44 NW  AERO 48 NW  RMY 45
3/18  51/33/42/+6/0.01/0.0/.../..           43 WNW AERO 45 WNW RMY 43
3/19  44/25/35/-1/0.00/0.0/.../..           25 NNW AERO 28 NNW RMY 26
3/20  35/23/29/-8/..../.../.../..           25 NE  AERO 28 NE  RMY 25
3/21  41/26/34/-3/..../.../.../..           30 WNW AERO 33 WNW RMY 32
3/22  48/28/38/+1/.../.../.../..            33 W   AERO 37 W   RMY 36

3/23  low temp since midnight is 42F; normal now 29F

DAILY RECORDS FOR MARCH 2016

***3/9/16: NEW DAILY RECORD MAXIMUM TEMPERATURE OF 75F,
BREAKS PREVIOUS RECORD OF 71F SET BACK IN 2000.***

***3/10/16: NEW DAILY RECORD HIGH MINIMUM TEMPERATURE OF 50F,
BREAKS PREVIOUS RECORD OF 42F SET AND TIED IN 1977, 2006***

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

RECORDS FOR MARCH 23
HIGH 78 IN 1938
LOW 3 IN 1934
PRE 2.52 INS. IN 2010
SNOW 3.0 INS. IN 1977
WIND 78e MPH W IN 1940

RECORDS FOR MARCH 24
HIGH 70 IN 1920
LOW 6 IN 1906
PRECIP 1.51 INS. IN 1956
SNOWFALL 12.3 INS. IN 1956
PEAK GUST 71 MPH W IN 1968

TODAY'S REPORT PREPARED BY: Brian Fitzgerald