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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JULY 7, 2014  
ALL TIMES ARE IN EASTERN STANDARD TIME

HEAT AND HUMIDITY RETURN FOLLOWING A DRY
AND SEASONABLE HOLIDAY WEEKEND

A brief shower moved past the station this morning
immediately following the 7:00 AM EST observation
leaving a quick trace of precipitation. As overhead
skies have cleared visibility has remained poor in all
directions with hazy conditions.

By the 1:00 PM EST observation visibility was only
20 miles with mostly clear skies above. A maximum of
85F was recorded during the observation as well.


Today's Observations:

7 A.M.
Weather: Broken altocumulus, overcast altostratus/nimbostratus,
showers in the vicinity NNW-NE and S-SSW  
Temperature: 68F; Dew Point: 62F; Wind: S @ 10 kts  
Sea-level pressure: 29.86 ins. Hg, steady, then falling 
Visibility: 20 miles, thin fog and showers reducing visibility 
6-hr max temp: 68F
6-hr min temp: 65F
BHO SA 1155 E80 BKN 110 OVC 20 112/68/62/1910/986/ 
VC SHWRS NNW-NE AND S-SSW THN FG ALQDS/ 8/02/ 58001 10068 20065

10 A.M. 
Weather: Few cumulus fractus WSW-NW, broken cirrus fibratus 
Temperature: 79F; Dew Point: 66F; Wind: SSW at 12 kts,
Sea-level pressure: 29.82 ins. Hg, falling, then more quickly      
Visibility: 20 miles, hazy
3-hr precip: Trace
BHO SA 1455 E250 BKN 20 099/79/66/2012/982/ 
FEW CUFRA WSW-NW HAZY/ 8/701 58013 MANAUL 6000/  
 
1 P.M.  
Weather: Scattered cumulus, scattered cirrus fibratus, hazy
Temperature: 85F; Dew Point: 66F; Wind: SSW at 19G28 kts,
Wind: Peak gust 29 kts SW at 12:10 P.M.
Sea-level pressure: 29.76 ins.  Hg, falling, then more quickly  
Visibility: 20 miles, hazy
6-hr max temp: 85F
6-hr min temp: 67F
6-hr precip: Trace 
BHO SA 1755 45 SCT 250 SCT 20 077/85/66/2119G28/976/ 
HAZY PK WND 2329/10/ 8/101 58022 MANUAL 6000/ 10085 20067

WEATHER SUMMARY FOR SUNDAY, JULY 6, 2014  

TEMPERATURE (DEGREES F)
MAX.....83    NORMAL.....80
MIN.....61    NORMAL.....62
MEAN....72    NORMAL.....71

DEPARTURE FROM 30-YEAR NORMAL.........................+1
TOTAL DEPARTURE FOR THE MONTH........................+16 [+2.5 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY..............7   DEPARTURE..........+0
TOTAL COOLING UNITS FOR THE MONTH.............50   DEPARTURE.........+13 
TOTAL COOLING UNITS FOR THE SEASON...........159   DEPARTURE..........-7
TOTAL COOLING UNITS LAST SEASON TO DATE......235   DIFFERENCE........-76

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY..................29 SW   AT  4:42 P.M. 
                   ASOS.......................34 SW   AT  4:43 P.M.   
                   DAVIS......................33 SW   AT  4:42 P.M. RMY 33       
FASTEST MILE FOR YESTERDAY....................24 SW   AT  4:43 P.M.      
MAXIMUM 2-MINUTE ASOS AVERAGE.................24 SW   AT  4:44 P.M.    
MAXIMUM 2-MINUTE DAVIS AVERAGE................22 NW   AT  4:44 P.M.    
AVERAGE WIND SPEED AND DIRECTION............16.2 WSW       	
                   ASOS.....................15.3    
                   DAVIS....................14.5 WSW [244 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..........+2.15	    
                         ASOS..............2.80  
TOTAL PRECIPITATION FOR THE YEAR..........27.35  DEPARTURE..........-0.27 
                         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  morning low of 65F, norm now 62F
 
DAILY EXTREMES 
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):     

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

RECORDS FOR JULY 8
HIGH 95F IN 1981
LOW 50F IN 1919
PRECIP 1.74 INCHES IN 1916
PEAK GUST 46e SSW IN 1941

TODAY'S REPORT PREPARED BY: Brian Fitzgerald