Sunday, June 14, 2015

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

DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, JUNE 14, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME

HIGH CLOUDS FILLED THE SKY WITH AVERAGE TEMPERATURES

Quiet day for the weather with mostly cloudy skies and hazy conditions.
Temperatures rose only slightly through the day with generally light
Winds and steady barometer.  Skies slowly cleared throughout the day As
upper level Cirrus clouds cleared out and Cumulus clouds began to form.
Visibility improved from this morning as some haze cleared but
Visibilities never got higher than 60 miles.

Today’s Observations:

7 A.M.
Weather: Scattered Altocumulus, Broken Cirrocumulus
Temperature: 67F; Dew Point: 56F; Wind: NNW at 7 kts
Sea-level pressure: 30.05 ins. Hg, rising
Visibility: 40 miles, light distant haze
6-hr Max temp: 67F
6-hr Min temp: 64F
24-hr precip: 0.00
BHO SA 1155 130 SCT E250 BKN 40 175/67/56/3207/005/ 8/079 51014 10067
20064 LGT DSTN HZ

10 A.M.
Weather: Few Cumulus SSW-NW, Scattered Altocumulus, Scattered dense
Cirrus
Temperature: 74F; Dew Point: 46F; Wind: N at 11 kts
Sea-level pressure: 30.08 ins. Hg, rising then rising more slowly
Visibility: 60 miles
BHO SA 1455 130 SCT 250 SCT 60 187/74/46/0611/008/ 8/132 53012
FEW CU WSW-NW LGT DSNT HZ

1 P.M.
Weather: Scattered Altocumulus, Scattered dense Cirrus, Few Cumulus
Temperature: 72F; Dew Point: 47F; Wind: N at 9 kts,
Sea-level pressure: 30.09 ins. Hg, rising then falling
Visibility: 60 miles
6-hr Max temp: 74F
6-hr Min temp: 67F
BHO SA 1755  130 SCT 250 SCT 60 189/72/47/0809/009/ FEW CU ALQDS
LGT DSNT HZ 8/132 58002 10074 20067

SUMMARY FOR SATURDAY, JUNE 13, 2015

TEMPERATURE (DEGREES F)
MAX…..83   NORMAL…..74
MIN…..67   NORMAL…..56
MEAN….75   NORMAL…..65

DEPARTURE FROM 30-YEAR NORMAL…………………..+10
TOTAL DEPARTURE FOR THE MONTH…………………..-27 [-2.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………0  DEPARTURE………..-3
TOTAL HEATING UNITS FOR THE MONTH…………..78  DEPARTURE……….+29
TOTAL HEATING UNITS FOR THE SEASON………..6482  DEPARTURE………+131
TOTAL HEATING UNITS LAST SEASON TO DATE……6421  DIFFERENCE………+61

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY………….10   DEPARTURE……….+7
TOTAL COOLING UNITS FOR THE MONTH………….38   DEPARTURE……….+8
TOTAL COOLING UNITS FOR THE SEASON…………87   DEPARTURE………+33
TOTAL COOLING UNITS LAST SEASON TO DATE…….39   DIFFERENCE……..+48

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………24  N   AT  7:13 A.M.
ASOS…………………..27  N   AT  7:09 A.M.
DAVIS………………….25  SSW AT  12:06 A.M. RMY 27
FASTEST MILE FOR YESTERDAY………………..18  N   AT  7:13 A.M.*
MAXIMUM 2-MINUTE ASOS AVERAGE……………..18  N   AT  7:13 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….19  WNW AT  12:08 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..8.3 NW
ASOS…………………..8.2
DAVIS………………….7.0 WNW [290 deg.] *LAST OF MULTIPLE OCCASIONS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…..0.00   DEPARTURE….-0.16
ASOS……………0.00
TOTAL PRECIPITATION FOR THE MONTH………..1.58   DEPARTURE….-0.55
ASOS……………1.60
TOTAL PRECIPITATION FOR THE YEAR………. 20.95   DEPARTURE….-3.71
ASOS……………N/A ***
*** ASOS annual totals not available due to erroneous readings

PRELIMINARY CLIMATE SUMMARY FOR JUNE 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  48/46/47/-15/0.69/000/00              32 NE  RMY 34
6/2  47/44/46/-16/…./000/00              28 NNE RMY 28
6/3  59/44/52/-10/0.00/172/19              16 ESE RMY 16
6/4  63/46/55/-8/0.00/445/49               17 E   RMY 16
6/5  70/49/60/-3/T/500/55                  17 NNE RMY 17
6/6  65/52/59/-4/0.06/382/42               26 ENE RMY 27
6/7  73/49/61/-3/0.00/884/97               28 S   RMY 29
6/8  73/50/62/-2/T/310/34                  41 SSW RMY 48
6/9  76/61/69/+4/0.03/228/25               29 SSW RMY 32
6/10 82/57/70/+5/0.00/…/..               24 WSW RMY N/A
6/11 85/61/73/+8/0.00/…/..               29 SSW RMY 32
6/12 86/65/76/+11/…./…/..              26 S   RMY 29
6/13 83/67/75/+10/T/…/..                 24 N   RMY 27

6/14 low since midnight is 63F; normal low is now 57F

DAILY RECORDS FOR JUNE 2015
6/1- NEW RECORD LOW MAXIMUM TEMPERATURE OF 48F
surpasses previous record of 51F in 2004

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR JUNE 14
HIGH 93F IN 1956
LOW 41F IN 1912
PRECIP 1.49 INS 1896
PEAK GUST 55 MPH WNW IN 1958

RECORDS FOR JUNE 15
HIGH 94F IN 1988
LOW 42F IN 1959, 1978
PRECIP 2.04 INS IN 1903
PEAK GUST 52 MPH SW IN 1972

TODAY’S REPORT PREPARED BY: Robert Millette