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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JANUARY 11, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME

HEAVY RAIN EVENT TOTALS 1.55 INCHES, NEW DAILY
RECORD MAXIMUM OF 58F BREAKS OLD RECORD SUNDAY,
GUSTY WINDS CONTINUE INTO COLDER MONDAY 

Temperatures reached their peak yesterday late afternoon
as we established a new daily record maximum temperature of
58F between 5:00 and 6:00 PM EST yesterday, breaking the
previous record of 54F, set back in 2000. Heavy rain that
fell throughout the day yesterday finally came to an end
around 7:00 PM last evening, totaling 1.55 inches on the day.
Precipitation for the month of January and the year is now
0.13 inches above normal so far, but snowfall is below normal 
for the month and season at -5.4 inches and -20.1 inches 
respectively.

Gusty winds that reached a peak of 53 MPH from the SSE 
yesterday afternoon have relaxed somewhat since yesterday,
although they have continued to reach near 40 MPH today. 
Clear and cooling conditions behind last evening's cold 
front have brought temperatures down into the lower 30s 
and upper 20s so far today.

   

Today's Observations:

7 A.M.
Weather: Clear, few stratocumulus distant NE-WNW,
few small cumulus in all directions 
Temperature: 30F; Dew Point: 18F; Wind: WNW at 16G28 kts
Peak Wind: 31 knots W at 6:27 AM EST
Sea-level pressure: 29.67 ins. Hg, rising rapidly 
Visibility: 70 miles 
6-hr Max temp: 46F 
6-hr Min temp: 29F
24-hr precip: 1.53 in. 
Snow depth: Zero 
BHO SA 1155 CLR 70 046/30/18/2916G28/967/ FEW SC DSNT NE-WNW 
FEW SML CU ALQDS PRESRR PK WND 2831/27/ 8/800 53045 
ASOS 70165 MANUAL 70153 10046 20029

10 A.M.
Weather: Clear, showers distant W, few stratocumulus distant
SW-NW, few small cumulus in all directions
Temperature: 31F; Dew Point: 15F; Wind: WNW at 20G31 kts
Peak Wind: 32 kts W at 9:08 AM EST
Sea-level pressure: 29.75 ins. Hg, rising rapidly 
Visibility: 80 miles, except 50 miles W
BHO SA 1455 CLR 80 076/31/15/2920G31/975/ VSBY W 50 MI 
SHWRS DSNT W FEW SC DSNT SW-NW FEW SML CU ALQDS 
PRESRR PK WND 2732/08/ 8/800 51030

1 P.M.
Weather: Clear, showers distant W, few stratocumulus and
cumulus in all directions
Temperature: 32F; Dew Point: 13F; Wind: W at 26G34 kts
Peak Wind: 35 kts W at 12:46 P.M. 
Sea-level pressure: 29.76 ins. Hg, rising, then more slowly
Visibility: 80 miles, except 60 miles W
6-hr Max temp: 33F
6-hr Min temp: 27F
BHO SA 1755 CLR 80 079/32/13/2726G34/976/ VSBY W 60 MI 
SHWRS DSNT W FEW SC/CU ALQDS PK WND 2735/18/ 8/800 51003 
10033 20027



SUMMARY FOR SUNDAY, JANUARY 10, 2016 
  
TEMPERATURE (DEGREES F)
MAX.....58   NORMAL.....34
MIN.....38   NORMAL.....17 
MEAN....48   NORMAL.....25

DEPARTURE FROM 30-YEAR NORMAL.......................+23
TOTAL DEPARTURE FOR THE MONTH.......................+56 [+5.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............17   DEPARTURE.........-23
TOTAL HEATING UNITS FOR THE MONTH.............333   DEPARTURE.........-56
TOTAL HEATING UNITS FOR THE SEASON...........1989   DEPARTURE........-704
TOTAL HEATING UNITS LAST SEASON TO DATE......2483   DIFFERENCE.......-494

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................53  SSE AT   1:16 P.M.  
                   AEROVANE....................55  SSE AT   1:14 P.M.        
                   ASOS........................48  ESE AT  11:00 A.M. 
                   DAVIS.......................49  SSE AT   1:15 P.M. RMY 53
FASTEST MILE FOR YESTERDAY.....................38  SSE AT   1:14 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE..................32  ESE AT  11:01 A.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE.................36  SSE AT   1:16 P.M.  
AVERAGE WIND SPEED AND DIRECTION...............19.7 E 
                   ASOS........................18.7   
                   DAVIS.......................17.4 SSE [152 Deg.]
*last of several occurrences...

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....1.53  DEPARTURE......+1.39
                         ASOS..............1.65
TOTAL PRECIPITATION FOR THE MONTH..........1.55  DEPARTURE......+0.13
                         ASOS..............1.67
TOTAL PRECIPITATION FOR THE YEAR...........1.55  DEPARTURE......+0.13  
                         ASOS..............1.67

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.......-0.5
TOTAL SNOWFALL FOR THE MONTH................0.2  DEPARTURE.......-5.4
TOTAL SNOWFALL FOR THE SEASON...............1.5  DEPARTURE......-20.1

PRELIMINARY CLIMATE SUMMARY FOR JANUARY CALENDAR DAY DATA
DATA REPORTED:
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

1/1   37/29/33/+6/0.00/0.0/.../..           29 W               RMY 29
1/2   37/27/32/+5/0.00/0.0/.../..           31 W               RMY N/A         
1/3   41/27/34/+8/0.00/0.0/.../..           28 W               RMY 29
1/4   30/10/20/-6/T/T/000/00                29 NNW             RMY 29
1/5   23/4/14/-12/0.00/0.0/.../..           28 NNW             RMY N/A
1/6   43/17/30/+4/0.00/0.0/.../..           24 SW              RMY 24
1/7   43/25/34/+8/0.00/0.0/.../..           21 SW              RMY N/A
1/8   40/28/34/+8/T/0.0/.../..              28 E   AERO 25 ENE RMY 25
1/9   39/36/38/+12/T/0.0/.../..             21 ENE AERO 20 ENE RMY N/A 
1/10  58/38/48/+23/1.55/0.0/000/00          53 SSE AERO 55 SSE RMY 53

1/11  low since midnight is 29F; normal low is now 17F  

DAILY RECORDS FOR JANUARY 2016

**1/10/16: NEW DAILY RECORD MAXIMUM TEMPERATURE OF 58F, BREAKS
PREVIOUS RECORD OF 54F SET BACK IN 2000**

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

RECORDS FOR JANUARY 11
HIGH 59F IN 1975
LOW -7F IN 1968
PRECIP 1.58 INS. IN 2008
SNOW 10.2 INS. 1927
PEAK GUST 95e MPH S IN 1980

RECORDS FOR JANUARY 12
HIGH 57F IN 1913, 1975
LOW -15F IN 1886
PRECIP 2.04 INS. IN 2011
SNOW 18.2 INS. IN 2011
WIND 84e MPH S IN 1980

TODAY'S REPORT PREPARED BY: Brian Fitzgerald