Wednesday, June 10, 2015
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, JUNE 10, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNSHINE AND WARM BUT MUCH DRIER TODAY FIRST 80 DEG. OF JUNE
BRIEF RAIN SHOWER LEAVES ONLY 0.03 RAIN YESTERDAY
Sunshine with warm and dry weather today as temps.
reach 80 degrees for first time during June. The
air has become very dry. The comparison of yesterday
is 60-deg. dew points yesterday down to dew points in
the upper 40’s this afternoon. Only a few cumulus
clouds dot the sky and winds are gradually backing
from WNW to WSW-SW with a peak gust of only 22 MPH
as reported on the RMY by early this afternoon.
Visibility is limited to 55 miles by distant haze.
A very brief rain shower early last evening left only
0.03 inch in a matter of a few minutes.
Today’s Observations:
7 A.M.
Weather: Clear, patch dense cirrus WNW-NW, cirrostratus
layer distant extending E-S
Temperature: 64F; Dew Point: 57F; Wind: WNW at 8 kts
Sea-level pressure: 29.85 ins. Hg, rising then more slowly
Visibility: 35 miles, except 45 miles WNW, distant haze
6-hr Max temp: 64F
6-hr Min temp: 57F
24-hr precip: 0.03 in
BHO SA 1155 CLR 35 107/64/57/2908/985/ PTCH DNS CI WNW-NW CS LYR
XTDNG DSNT E-S VSBY WNW 45 DSNT HZ ALQDS/ 8/002 51020
MANUAL 70003 ASOS 70003 10064 20057
10 A.M.
Weather: Clear, cumulus forming distant WNW-NNW, few cirrus
N-NE
Temperature: 75F; Dew Point: 52F; Wind: WNW at 5 kts,
Wind: light
Sea-level pressure: 29.86 ins. Hg, rising then more slowly
Visibility: 55 miles, except 35 miles NE, distant haze
BHO SA 1455 CLR 55 111/75/52/3005/986/ CU FRMG DSNT WNW-NNW
FEW CI N-NE VSBY NE 35 DSNT HZ WND LGT/ 8/101 51004
1 P.M.
Weather: Clear, few cumulus fractus and small cumulus in
all parts of the sky
Temperature: 79F; Dew Point: 48F; Wind: WSW at 8 kts,
Wind: Direction variable SW to W
Sea-level pressure 29.85 ins. Hg, falling slightly
Visibility: 55 miles
6-hr Max temp: 81F
6-hr Min temp: 64F
BHO SA 1755 CLR 55 108/79/48/2508/985/ CUFRA/SML CU ALQDS
LGT DSNT HZ WND 22V28/ 8/100 58003 10081 20064
SUMMARY FOR TUESDAY, JUNE 9, 2015
TEMPERATURE (DEGREES F)
MAX…..76 NORMAL…..73
MIN…..61 NORMAL…..55
MEAN….69 NORMAL…..64
DEPARTURE FROM 30-YEAR NORMAL……………………+5
TOTAL DEPARTURE FOR THE MONTH…………………..-56 [-6.4 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……….+41
TOTAL HEATING UNITS FOR THE SEASON………..6482 DEPARTURE………+142
TOTAL HEATING UNITS LAST SEASON TO DATE……6414 DIFFERENCE………+68
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..4 DEPARTURE……….+1
TOTAL COOLING UNITS FOR THE MONTH…………..4 DEPARTURE………-15
TOTAL COOLING UNITS FOR THE SEASON…………53 DEPARTURE………+10
TOTAL COOLING UNITS LAST SEASON TO DATE…….36 DIFFERENCE……..+17
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………29 SSW AT 3:26 P.M.
ASOS…………………..31 SSW AT 3:26 P.M.
DAVIS………………….30 SSW AT 3:25 P.M. RMY 32
FASTEST MILE FOR YESTERDAY………………..25 S AT 3:37 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..25 S AT 3:27 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….23 S AT 1:01 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..
ASOS…………………..16.3
DAVIS………………….14.7 SSW [194 deg.]
* Last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…..0.03 DEPARTURE….-0.13
ASOS……………0.03
TOTAL PRECIPITATION FOR THE MONTH………..1.58 DEPARTURE….+0.09
ASOS……………1.60
TOTAL PRECIPITATION FOR THE YEAR………. 20.95 DEPARTURE….-3.07 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/…/.. 16 ESE RMY 16
6/4 63/46/55/-8/0.00/…/.. 17 E RMY 16
6/5 70/49/60/-3/T/…/.. 17 NNE RMY 17
6/6 65/52/59/-4/0.06/…/.. 26 ENE RMY 27
6/7 73/49/61/-3/0.00/…/.. 28 S RMY 29
6/8 73/50/62/-2/T/…/.. 41 SSW RMY 48
6/9 76/61/69/+4/0.03/…/.. 29 SSW RMY 32
6/10 low since midnight is 57F; normal low is now 56F
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 10
HIGH 98F IN 2008
LOW 42F IN 1913,1920
PRECIP 2.51 INCHES IN 1931
PEAK GUST 60e MPH NW IN 1941
RECORDS FOR JUNE 12
HIGH 92F IN 1973
LOW 40F IN 1906
PRECIP 1.79 INS 1955
PEAK GUST 58 MPH NW IN 1991
TODAY’S REPORT PREPARED BY: Robert Skilling
