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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, MARCH 25, 2016 
ALL TIMES ARE IN EASTERN STANDARD TIME

RAW THURSDAY TRANSITIONS TO DAMP AND WARMING FRIDAY

Temperatures from midnight to midnight Thursday only fluctuated
between 39F and 34F, creating an average temperature of 37F that
was surprisingly only 1 degree below normal for the date.
Temperatures are still averaging more than 6 degrees per day
warmer than normal through the first 24 days of March.

Thick fog and drizzle that settled in overnight continued into
this morning with intermittent light rain showers bringing
a total of 0.08 inches since last evening. Thick fog has continued
through mid day today, keeping visibility to 1/8 of a mile or
less today. So far a maximum temperature of 48F has been recorded
today.


Today's Observations:

7 A.M.
Weather: Thick fog
Temperature: 44F; Dew Point: 44F; Wind: estimated SSE at 5 kts
Wind Speed: Light
Sea-level pressure: 29.81 ins. Hg, falling, the rising but lower still
Visibility: 1/8 of a mile, thick fog
6-hr Max temp: 44F 
6-hr Min temp: 38F
24-hr precip: 0.04 ins.  
BHO SA 1155 W2 X 1/8F 096/44/44/E1605/981/ 
WND LGT/ 8//// 55008 ASOS 60001 70001 MANUAL 70004 10044 20038

10 A.M.
Weather: Light rain showers, light drizzle, thick fog
Temperature: 44F; Dew Point: 44F; Wind: estimated SSE at 6 kts,
Wind Speed: Wind Light
Sea-level pressure: 29.80 ins. Hg, falling, then more quickly
Visibility: 1/8 of a mile, thick fog, light rain showers and drizzle
3-hr precip: 0.02 ins.
BHO SA 1455 W2 X 1/8RWL-F 091/44/44/E1606/980/ 
RW-B1355 WND LGT/ 8//// 58005 ASOS 60001 MANUAL 60002

1 P.M.
Weather: Thick fog
Temperature: 47F; Dew Point: 47F; Wind: estimated S at 5 kts,
Wind Speed: Light 
Sea-level pressure: 29.77 ins. Hg, falling steadily
Visibility: 1/8 of a mile, thick fog
6-hr Max temp: 48F 
6-hr Min temp: 41F
6-hr precip: 0.04 ins.
BHO SA 1755 W3 X 1/8F 081/47/47/E1705/977/ WND LGT/ 8//// 57010
ASOS 60003 MANUAL 60004 10048 20041 


SUMMARY FOR THURSDAY, MARCH 24, 2016 
  
TEMPERATURE (DEGREES F)
MAX.....39   NORMAL.....47
MIN.....34   NORMAL.....29 
MEAN....37   NORMAL.....38

DEPARTURE FROM 30-YEAR NORMAL.........................-1
TOTAL DEPARTURE FOR THE MONTH.......................+154 [+6.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............28   DEPARTURE..........+1
TOTAL HEATING UNITS FOR THE MONTH.............582   DEPARTURE........-154
TOTAL HEATING UNITS FOR THE SEASON...........4265   DEPARTURE.......-1040
TOTAL HEATING UNITS LAST SEASON TO DATE......5546   DIFFERENCE......-1281

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................31 ENE AT  8:02 A.M.
                   ASOS........................32 ENE AT 10:08 A.M. 
                   DAVIS.......................30 ENE AT 10:08 A.M. RMY 32
FASTEST MILE FOR YESTERDAY.....................25 ENE AT  9:59 A.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE..................24 ENE AT 10:09 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE.................23 ENE AT  8:03 A.M.
AVERAGE WIND SPEED AND DIRECTION.............14.0 ENE 
                   ASOS......................14.7   
                   DAVIS.....................12.1 ENE [063 Deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.04  DEPARTURE......-0.15
                         ASOS..............0.01
TOTAL PRECIPITATION FOR THE MONTH..........2.76  DEPARTURE......-1.54
                         ASOS..............2.77
TOTAL PRECIPITATION FOR THE YEAR..........12.13  DEPARTURE......-0.59 
                         ASOS.............12.73

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.......-6.3
TOTAL SNOWFALL FOR THE SEASON..............42.5  DEPARTURE......-15.7

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  62/39/51/+13/0.01/0.0/.../..          35 NE  AERO 40 NE  RMY 39
3/24  39/34/37/-1/..../0.0/.../..           31 ENE AERO 33 ENE RMY 32

3/25  low temp since midnight is 37F; normal now 30F

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 25
HIGH 76 IN 1910
LOW 8 IN 1888, 1956
PRECIP 1.84 INS. IN 1909
SNOWFALL 1.0 INS. IN 1912
PEAK GUST 69 MPH SE IN 1969

RECORDS FOR MARCH 26
HIGH 76 IN 1922, 1949
LOW 6 IN 1960
PRECIP 1.99 INS. IN 1988
SNOWFALL 5.4 INS. IN 2001
PEAK GUST 63 MPH S IN 1970

TODAY'S REPORT PREPARED BY: Brian Fitzgerald