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

DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, JULY 6, 2014  
ALL TIMES ARE IN EASTERN STANDARD TIME

SUNNY AND WARMER WITH CONTINUED LOW HUMIDITY SUNDAY 

Sunny and continued dry weather today with dew points 
dropping to near 50F as the temperature heads into the 
lower 80's.  A light distant haze is holding the 
visibility near 60 miles by late this morning. 
 

THE PRELIMINARY JUNE 2014 STATS
 
[Departures are relative to the 1981-2010 averages]
 
TEMPERATURE: Deg. F
Avg. Max. 77.2 [+2.2]
Avg. Min. 56.8 [-0.3]
Mean      67.0 [+0.9]
24-hr. corrected mean: 66.8
Max. temp: 87F on the 30th
Min. temp: 47F on the 1 st
Total heating degree day units: 28 [-46]
Total seasonal heating units:   6422 [46 more than average]
[Season starts 7/1] 
Total cooling degree day units: 96 [-9]
Total cooling degree units for season: 109 [-20]
[Season starts January 1, 2014] 
 
PRECIPITATION: Inches
Total: 2.21 [-2.10]
Greatest in 24 hours: 0.91 (5th)

WIND
Av. speed (uncorrected): 10.1 mph
Av. speed (corrected):   10.6 mph
Prevailing direction:     SSW 12%
 
SUNSHINE
Total astronomical minutes: 18356 of possible 27362 or 67%  (Corrected)
Total Campbell Stokes card minutes: 17552 of possible 26376 or 67% 


Today's Observations:

7 A.M.
Weather: Thin scattered cirrus, thin broken cirrus, altocumulus/altocumulus 
lenticularis distant WNW-NE-SSE 
Temperature: 67F; Dew Point: 53F; Wind: WSW @ 9 kts  
Sea-level pressure: 30.02 ins. Hg, rising slightly 
Visibility: 55 miles, light distant haz  
6-hr max temp: 67F
6-hr min temp: 61F
BHO SA 1155 250 -SCT 300 -BKN 55 167/67/53/2509/002/ 
AC/ACSL MSTLY DSNT WNW-NE-SSE/ 8/041 51007 10067 20061

10 A.M. 
Weather:  Thin scattered cirrus [ 2 levels] 
Temperature: 76F; Dew Point: 53F; Wind: WSW at 14 kts,
Sea-level pressure: 30.01 ins. Hg, falling slightly      
Visibility: 60 miles
BHO SA 1455 250 -SCT 300 -SCT 60 161/76/53/2414/001/ LGT DSNT HZ/ 
8/001 58006   
 

WEATHER SUMMARY FOR SATURDAY, JULY 5, 2014  

TEMPERATURE (DEGREES F)
MAX.....77    NORMAL.....80
MIN.....55    NORMAL.....62
MEAN....66    NORMAL.....71

DEPARTURE FROM 30-YEAR NORMAL.........................-5
TOTAL DEPARTURE FOR THE MONTH........................+15 [+2.8 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY..............1   DEPARTURE..........-5
TOTAL COOLING UNITS FOR THE MONTH.............43   DEPARTURE.........+13 
TOTAL COOLING UNITS FOR THE SEASON...........152   DEPARTURE..........-8
TOTAL COOLING UNITS LAST SEASON TO DATE......218   DIFFERENCE........-66

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY..................36 NW   AT  3:21 A.M. 
                   ASOS.......................42 NW   AT  3:26 A.M.   
                   DAVIS......................40 NW   AT  3:42 A.M. RMY N/A       
FASTEST MILE FOR YESTERDAY....................28 NW   AT  3:31 A.M.      
MAXIMUM 2-MINUTE ASOS AVERAGE.................28 NW   AT  3:33 A.M.    
MAXIMUM 2-MINUTE DAVIS AVERAGE................26 NW   AT  3:27 A.M.    
AVERAGE WIND SPEED AND DIRECTION............18.6 W       	
                   ASOS.....................17.3    
                   DAVIS....................15.7 WNW [290 deg]
* Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE..........-0.11
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........2.80  DEPARTURE..........+2.26	    
                         ASOS..............2.80  
TOTAL PRECIPITATION FOR THE YEAR..........27.35  DEPARTURE..........-0.16 
                         ASOS.............27.66 

PRELIMINARY CLIMATE SUMMARY FOR JUNE 2014 - 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

6/1  72/47/60/-2/0.00/887/98              21 NNW RMY 21
6/2  81/52/67/+5//0.00/879/97             22 SSW RMY 23
6/3  81/57/69/+7/0.00/889/98              25 SSE RMY 28
6/4  64/52/58/-5/0.11/000/00              16 SE  RMY N/A
6/5  60/55/58/-5/0.91/000/00              21 NNW RMY 24
6/6  73/54/64/+1/0.00/655/72              22 WNW RMY 23
6/7  82/56/69/+5/0.00/893/98              21 W   RMY 22
6/8  84/63/74/+10/0.00/702/77             18 SW  RMY N/A
6/9  77/61/69/+5/0.13/046/05              21 WSW RMY 22
6/10 80/56/68/+3/0.10/183/20              29 ENE RMY 33  
6/11 69/55/62/-3/T/439/48                 21 ENE RMY 20
6/12 70/56/63/-2/0.00/101/11              21 ESE RMY N/A 
6/13 67/58/63/-2/0.34/000/00              25 E   RMY N/A  
6/14 73/58/66/0/0.05/238/26               23 WNW RMY 24
6/15 78/53/66/0/0.00/879/96               25 NNW RMY 27
6/16 79/56/68/+2/0.00/834/91              23 S   RMY N/A 
6/17 81/58/70/+3/0.28/752/82              25 S   RMY 24  TSTM
6/18 83/65/74/+7/T/715/78                 35 W   RMY 38 
6/19 81/61/71/+4/0.00/559/61              24 NW  RMY 25
6/20 75/55/65/-3/0.00/889/97              24 NW  RMY 27
6/21 75/52/64/-4/0.00/770/84              17 NNW RMY 19 
6/22 75/54/65/-3/0.00/734/80              17 N   RMY 19
6/23 80/57/69/+1/0.00/862/94              22 SSW RMY 24
6/24 81/57/69/0/0.00/688/75               29 S   RMY 33 
6/25 86/62/74/+5/0.00/761/83              28 SSW RMY 31 
6/26 80/57/69/0/0.29/495/54               26 NE  RMY 27
6/27 74/56/65/-4/0.00/889/97              25 NNE RMY 24
6/28 83/60/72/+2/0.00/889/97              17 WSW RMY 18
6/29 85/60/73/+3/0.00/860/94	         23 S   RMY N/A 
6/30 87/61/74/+4/0.00/868/95              25 SSW RMY 26  

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  morning low of 61F, norm now 62F
 
DAILY EXTREMES 
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):     

RECORDS FOR JULY 6
HIGH 99F IN 2010
LOW 47F IN 1979
PRECIP 1.43 INCHES IN 2005
PEAK GUST 56e MPH NNW IN 1942, 56 MPH WNW IN 1999

RECORDS FOR JULY 7
HIGH 97F IN 1908,1993
LOW 48F IN 1902
PRECIP 2.11 INCHES IN 1966
PEAK GUST 55 MPH NW IN 1989

TODAY'S REPORT PREPARED BY: Robert Skilling