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

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

SEASONABLE TEMPERATURES RETURN, MORNING CLOUDS SLOW TO CLEAR

Higher temperatures returned after a weekend of unseasonably cool and wet
weather.  The maximum measured by 1:00PM EST was 74F and is expected to climb 
higher as cloud cover clears.  The overnight low of 56F was still 7F below
average.

An additional 0.01 in. of precipitation fell yesterday afternoon making
yesterday's 24 hour total 0.04 in.  Fog and low clouds lingering from the
weekend's low pressure system were slow to burn off this morning.  Visibility
ranged from 20-70 miles in the early morning, but was 70 miles in all
directions by the 1:00PM EST observation.


Today's Observations:

7 A.M. 
Weather: Broken stratocumulus, broken stratus, few stratus fractus ESE-W
Temperature: 61F; Dew Point: 59F; Wind: NW at 7 kts 
Sea-level pressure: 30.05 ins. Hg, rising, then more slowly
Visibility: 70 miles, except 20 miles N-ENE and 30 miles E-SSE,
distant fog
6-hr Max temp: 62F 
6-hr Min temp: 56F
24-hr precip: 0.01 in.
BHO SA 1155 E7 BKN 19 BKN 70 175/61/59/3107/005/ FEW STFRA ESE-W 
VSBY N-ENE 20 VSBY E-SSE 30 DSNT FG N-SSE/ 8/600 51015 MANUAL 70001 
ASOS 70001 10062 20056

10 A.M.
Weather: Broken stratocumulus, overcast stratus, few cumulus NNE
Temperature: 65F; Dew Point: 59F; Wind: NNE at 8 kts
Sea-level pressure: 30.08 ins. Hg, rising, then more quickly 
Visibility: 50 miles, except 40 miles ESE-SSW and 70 miles SW-NW
BHO SA 1455 E9 BKN 22 OVC 50 185/65/59/0308/008/ FEW CU NNE VSBY ESE-SSW 40 
VSBY SW-NW 70/ 8/6// 53010

1 P.M.
Weather: Scattered cumulus, broken cirrostratus
Temperature: 73F; Dew Point: 58F; Wind: estimated NW at 4 kts,
Wind: Light and variable
Sea-level pressure: 30.09 ins. Hg, steady, then rising
Visibility: 70 miles 
6-hr Max temp: 74F 
6-hr Min temp: 61F
BHO SA 1755 29 SCT E30 BKN 70 183/73/58/E3204/009/ WND L/V/ 
8/108 53003 10074 20061
 
SUMMARY FOR SUNDAY, JULY 10, 2016 
 
TEMPERATURE (DEGREES F)
MAX.....66   NORMAL.....81
MIN.....56   NORMAL.....63 
MEAN....61   NORMAL.....72

DEPARTURE FROM 30-YEAR NORMAL........................-11
TOTAL DEPARTURE FOR THE MONTH........................-15 [-1.3 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY...............0   DEPARTURE..........-7
TOTAL COOLING UNITS FOR THE MONTH..............56   DEPARTURE..........-8
TOTAL COOLING UNITS FOR THE SEASON............213   DEPARTURE.........+20
TOTAL COOLING UNITS LAST SEASON TO DATE.......201   DIFFERENCE........+12   

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................16  NE   AT  6:09 P.M. 
                   ASOS........................17  ENE  AT  6:07 P.M. 
                   DAVIS.......................15  NE   AT  4:20 P.M. RMY 16
FASTEST MILE FOR YESTERDAY.....................11  NE   AT  6:09 P.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE..................13  ENE  AT  6:07 P.M. 
MAXIMUM 2-MINUTE DAVIS AVERAGE.................11  NE   AT  6:07 P.M. 
AVERAGE WIND SPEED AND DIRECTION..............5.8  NE
                   ASOS.......................6.4
                   DAVIS......................5.3  NE [040 Deg.]
*Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.01  DEPARTURE......-0.12
                         ASOS..............0.01
TOTAL PRECIPITATION FOR THE MONTH..........0.64  DEPARTURE......-0.48
                         ASOS..............0.60
TOTAL PRECIPITATION FOR THE YEAR..........22.33  DEPARTURE......-5.76
                         ASOS.............22.72
 
PRELIMINARY CLIMATE SUMMARY FOR JULY 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
                                     
7/1  84/67/76/+6/0.20/520/57                 32 S   AERO 35 S   RMY 34 TSTM 
7/2  76/61/69/-1/0.00/811/91                 31 W   AERO 34 W   RMY 32 
7/3  83/57/70/-1/0.00/766/84                 23 W   AERO 23 W   RMY 23
7/4  87/61/74/+3/0.00/847/93                 28 SSW AERO 28 SSW RMY 28
7/5  80/65/73/+2/0.29/309/34                 16 S   AERO 16 S   RMY N/A
7/6  92/68/80/+9/0.00/864/95                 22 WSW AERO 24 WSW RMY 22
7/7  77/61/69/-2/0.00/.../..                 21 NE  AERO 20 ENE RMY N/A
7/8  67/58/63/-9/0.02/000/00                 25 NE  AERO 25 NE  RMY 26 
7/9  64/57/61/-11/0.09/000/00                20 NE  AERO 18 NE  RMY 17
7/10 66/56/61/-11/0.04/.../..                16 NE  AERO 16 NE  RMY 16

7/11 low temp since midnight is 56F; normal low is now 63F

DAILY RECORDS FOR JULY 2016
None so far.
     
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated): 

RECORDS FOR JULY 11
HIGH 98F IN 1911
LOW 49F IN 1890
PRECIP 1.87 INS IN 1959
WIND 53 MPH NW IN 1988

RECORDS FOR JULY 12
HIGH 97F IN 1943
LOW 48F IN 1945
PRECIP 1.43 INS IN 1975
WIND 48e MPH SSW IN 1944

TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle