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

DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, JULY 9, 2014  
ALL TIMES ARE IN EASTERN STANDARD TIME

VERY WARM BUT DRIER TODAY

Temperatures have risen to the middle 80's but with dew points
in the middle 60's so quite a bit lower than yesterday. Seems to 
be no threat of showers until this evening or overnight.  


Today's Observations:

7 A.M.
Weather: Scattered altocumulus, scattered very high thin cirrus,
cumulofractus/cumulus all quadrants, thin fog/haze layer along/above
and near horizon SW-NW   
Temperature: 73F; Dew Point: 67F; Wind: SW @ 12 kts  
Sea-level pressure: 29.84 ins. Hg, rising then more rapidly 
Visibility: 25 miles, hazy   
6-hr max temp: 73F
6-hr min temp: 70F
24-hr precip: None
BHO SA 1155 150 SCT 300 SCT 25 105/73/67/2312/984/ FEW CUFRA/AC NE-SE RCDNG
FEW ACC DSSPTD PST HR FG/HZ LYR ALG/ABV NR HRZN DSNT SW-NW/ 8/131 53024 
10073 20070  

10 A.M. 
Weather: Scattered altocumulus, layer NE-SE, patches ACSL,
patch dense cirrus distant SSW-SW, few cumulus and cumulus fractus 
Temperature: 80F; Dew Point: 63F; Wind: W at 9 kts,
Wind: Direction variable SSW-W
Sea-level pressure: 29.86 ins. Hg, rising then more slowly       
Visibility: 55 miles, light distant haze 
BHO SA 1455 150 SCT 55 116/80/63/2609/986/ CUFRA/CU FRMG
AC LYR NE-SE PTCHS AC/ACSL PTCH DNS CI DSNT SSW-SW 
LGT DSNT HZ WND 20V28/ 8/142 51011  
  
1 P.M.  
Weather: Scattered dense cirrus, two levels, broken cirrus, 
few altocumulus chaotic, few cumulus and moderate cumulus 
Temperature: 83F; Dew Point: 64F; Wind: SW at 15 kts,
Sea-level pressure: 29.86 ins.  Hg, steady   
Visibility: 50 miles, WNW 55 miles, NE 30 miles,  hazy 
6-hr max temp: 85F
6-hr min temp: 73F
 BHO SA 1755 180 SCT 200 SCT 220 SCT 250 BKN 50 117/83/64/2215/986/
FEW CU/MDT CU FEW AC CHAOTIC DNS CI NE-OVHD-SSW VSBY WNW 55 NE 30
HAZY/ 8/292 53001 10085 20073  

WEATHER SUMMARY FOR TUESDAY, JULY 8, 2014  

TEMPERATURE (DEGREES F)
MAX.....89    NORMAL.....80
MIN.....70    NORMAL.....63
MEAN....80    NORMAL.....72

DEPARTURE FROM 30-YEAR NORMAL.........................+8
TOTAL DEPARTURE FOR THE MONTH........................+28 [+3.3 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY.............15   DEPARTURE..........+8
TOTAL COOLING UNITS FOR THE MONTH.............75   DEPARTURE.........+24 
TOTAL COOLING UNITS FOR THE SEASON...........184   DEPARTURE..........+4
TOTAL COOLING UNITS LAST SEASON TO DATE......260   DIFFERENCE........-76

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY..................31 SW   AT  2:58 P.M. 
                   ASOS.......................36 SW   AT  2:58 P.M.   
                   DAVIS......................38 SSW  AT  2:58 P.M. RMY 38       
FASTEST MILE FOR YESTERDAY....................26 SSW  AT  2:57 P.M. *       
MAXIMUM 2-MINUTE ASOS AVERAGE.................26 SSW  AT  2:55 P.M.     
MAXIMUM 2-MINUTE DAVIS AVERAGE................26 SSW  AT  2:52 P.M.     
AVERAGE WIND SPEED AND DIRECTION............16.2 SW       	
                   ASOS.....................16.3    
                   DAVIS....................14.4 SSW [210 deg]
* Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE..........-0.12
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........2.80  DEPARTURE..........+1.92	    
                         ASOS..............2.80  
TOTAL PRECIPITATION FOR THE YEAR..........27.35  DEPARTURE..........-0.50 
                         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  morning low of 70F, norm now 63F
 
DAILY EXTREMES 
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):     

RECORDS FOR JULY 9
HIGH 98F IN 1912
LOW 47F IN 1909
PRECIP 3.74 INS IN 1921
WIND 46 MPH NW IN 1992 

RECORDS FOR JULY 10
HIGH 99F IN 1911
LOW 46F IN 1890
PRECIP 1.68 INS IN 1933
WIND 75 MPH W IN 1985

TODAY'S REPORT PREPARED BY: Robert Skilling