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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, JULY 11, 2014  
ALL TIMES ARE IN EASTERN STANDARD TIME

CLEAR CONDITIONS PREVAIL BY MID MORNING

A mostly E-ENE flow has allowed for cool temperatures
overnight and today with a daily maximum of 76F so far.
Visibility has exceeded 70 miles in most directions
for most of today.
 

Today's Observations:

7 A.M.
Weather: Scattered altostratus, broken cirrocumulus/
cirrus fibratus 
Temperature: 65F; Dew Point: 56F; Wind: ENE @ 12 kts  
Sea-level pressure: 30.22 ins. Hg, rising then more rapidly   
Visibility: 80 miles, 35 miles NNE-SSE
6-hr max temp: 67F
6-hr min temp: 62F
24-hr precip: None
BHO SA 1155 160 SCT E250 BKN 80 234/65/56/0612/022/ 
VSBY NNE-SSE 35 MI/ 8/019 53013 10067 20062 

10 A.M.  
Weather: Clear, few cumulus distant WNW-NW,
few cirrostratus distant ENE-SSW  
Temperature: 74F; Dew Point: 58F; Wind: E at 7 kts,
Sea-level pressure: 30.25 ins. Hg, rising then more slowly       
Visibility: 75 miles, 50 miles ENE-SSW
BHO SA 1455 CLR 75 244/74/58/0807/025/ FEW CU DSNT WNW-NW 
FEW CS DSNT ENE-SSW VSBY ENE-SSW 50 MI/ 8/108 51010 

1 P.M.  
Weather: Few cumulus SE-NNE, few cirrostratus distant ENE-S
Temperature: 76F; Dew Point: 57F; Wind: E at 8 kts,
Sea-level pressure: 30.23 ins.  Hg, steady then falling   
Visibility: 70 miles, 60 miles ENE-S, 80 miles NNW-NE 
6-hr max temp: 76F
6-hr min temp; 65F   
BHO SA 1755 CLR 70 236/76/57/0808/023/ FEW CU SE-NNE 
FEW CS DSNT ENE-S VSBY ENE-S 60 MI VSBY NNW-NE 80 MI/ 
8/108 58008 10076 20065
 
WEATHER SUMMARY FOR THURSDAY, JULY 10, 2014  

TEMPERATURE (DEGREES F)
MAX.....80    NORMAL.....81
MIN.....65    NORMAL.....63
MEAN....73    NORMAL.....72

DEPARTURE FROM 30-YEAR NORMAL.........................+1
TOTAL DEPARTURE FOR THE MONTH........................+35 [+3.3 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY..............8   DEPARTURE..........+1
TOTAL COOLING UNITS FOR THE MONTH.............96   DEPARTURE.........+32 
TOTAL COOLING UNITS FOR THE SEASON...........205   DEPARTURE.........+12
TOTAL COOLING UNITS LAST SEASON TO DATE......273   DIFFERENCE........-68

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY..................16 NW   AT 9:11 A.M.  
                   ASOS.......................18 NW   AT 9:11 A.M.   
                   DAVIS......................16 WNW  AT 9:11 A.M. RMY N/A       
FASTEST MILE FOR YESTERDAY....................13 NW   AT 9:10 A.M.           
MAXIMUM 2-MINUTE ASOS AVERAGE.................14 NW   AT 9:29 A.M.     
MAXIMUM 2-MINUTE DAVIS AVERAGE................12 NW   AT 9:29 A.M.      
AVERAGE WIND SPEED AND DIRECTION............7.0 WNW      	
                   ASOS.....................7.4    
                   DAVIS....................6.2 WNW [286 deg]
* Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE..........-0.13
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........2.80  DEPARTURE..........+1.68	    
                         ASOS..............2.80  
TOTAL PRECIPITATION FOR THE YEAR..........27.35  DEPARTURE..........-0.74 
                         ASOS.............27.66 

PRELIMINARY CLIMATE SUMMARY FOR JULY 2014 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/RMY 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  85/66/76/+6/0.00/.../..              31 SSW RMY 36
7/2  89/69/79/+9/0.00/.../..              33 SSW RMY 38 
7/3  91/68/80/+9/..../.../..              29 W   RMY 30  TSTM
7/4  72/61/67/-4/..../.../..              28 N   RMY N/A TSTM
7/5  77/55/66/-5/..../.../..              36 NW  RMY N/A 
7/6  83/61/72/+1/0.00/.../..              29 SW  RMY 33
7/7  85/65/75/+4/T/.../..                 33 SW  RMY 38  TSTM [NO RAIN] 
7/8  89/70/80/+8/0.00/.../..              31 SW  RMY 38 
7/9  86/70/78/+6/0.00/.../..              28 SSW RMY N/A	
7/10 80/65/73/+1/0.00/.../..              16 NW  RMY N/A

7/11 morning low of 62F, norm now 63F
 
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: Brian Fitzgerald