Wednesday, June 22, 2016

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

DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, JUNE 22, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME

A DAY OF LIGHT RAIN SHOWERS AND LIGHT WINDS

Late morning and early afternoon rain showers left just a trace of
precipitation by the 1:00PM EST observation. Temperatures reached a max.
of 79F in the late morning but began falling as sky cover increased
with thick stratus and nimbostratus clouds.

Today’s Observations:

7 A.M.
Weather: Scattered altocumulus
Temperature: 66F; Dew Point: 49F; Wind: W at 8 kts
Sea-level pressure: 29.80 in. Hg, rising unsteadily
Visibility: 70 miles
6-hr Max temp: 66F
6-hr Min temp: 60F
24-hr precip: 0.00 in.
BHO SA 1155 84 SCT 70 092/66/49/2808/980/ 8/080 51007 10066 20060

10 A.M.
Weather: Scattered altocumulus, broken altocumulus
Temperature: 78F; Dew Point: 47F; Wind: estimated SSW at 4 kts,
Wind Speed: Light
Wind Direction: variable SSE-SW
Sea-level pressure: 29.78 in. Hg, falling, then rising
Visibility: 70 miles
BHO SA 1455 84 SCT E140 BKN 70 086/78/47/E2004/978/ WND LGT WND 16V23/
8/060 58006

1 P.M.
Weather: Light rain shower, few cumulus fractus in all directions, broken
nimbostratus, overcast altostratus
Temperature: 68F; Dew Point: 55F; Wind: estimated WNW at 6 kts
Wind: Light and variable
Sea-level pressure: 29.79 in. Hg, falling, rising
Visibility: 20 miles
6-hr Max temp: 79F
6-hr Min temp: 66F
BHO SA 1755 E69 BKN 110 OVC 20RW- 087/68/55/E3006/979/ FEW CUFRA ALQDS
RW-B54 WND L/V/ 8/72/ 53001 10079 20066 MANUAL 6000/

SUMMARY FOR TUESDAY, JUNE 21, 2016

TEMPERATURE (DEGREES F)
MAX…..82   NORMAL…..77
MIN…..61   NORMAL…..59
MEAN….72   NORMAL…..68

DEPARTURE FROM 30-YEAR NORMAL…………………….+4
TOTAL DEPARTURE FOR THE MONTH……………………+18 [+0.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………0   DEPARTURE……….-1
TOTAL HEATING UNITS FOR THE MONTH…………..34   DEPARTURE………-31
TOTAL HEATING UNITS FOR THE SEASON………..5282   DEPARTURE…….-1086
TOTAL HEATING UNITS LAST SEASON TO DATE……6491   DIFFERENCE……-1209

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………7   DEPARTURE……….+3
TOTAL COOLING UNITS FOR THE MONTH…………..49   DEPARTURE………-10
TOTAL COOLING UNITS FOR THE SEASON………….97   DEPARTURE………+14
TOTAL COOLING UNITS LAST SEASON TO DATE…….101   DIFFERENCE………-4

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….30 WSW AT  2:43 P.M.
ASOS……………………32 WSW AT  2:44 P.M.
DAVIS…………………..30 W   AT  2:43 P.M. RMY 33
FASTEST MILE FOR YESTERDAY…………………24 WSW AT  2:42 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………25 W   AT  3:24 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..22 WSW AT  2:44 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..13.3 WNW
ASOS…………………..12.9
DAVIS………………….11.8 WSW [240 Deg.] * Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE……-0.13
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.45  DEPARTURE……-1.82
ASOS…………..1.51
TOTAL PRECIPITATION FOR THE YEAR……….21.52  DEPARTURE……-4.41
ASOS………….21.95

PRELIMINARY CLIMATE SUMMARY FOR JUNE CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system 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  71/54/63/+1/0.00/860/95                 26 NE  AERO 30 NE  RMY N/A
6/2  68/54/61/-1/0.00/444/49                 21 NE  AERO 22 NE  RMY 21
6/3  70/57/64/+2/T/173/19                    16 SSW AERO 17 SSW RMY 16
6/4  81/61/71/+8/0.00/491/54                 18 S   AERO 21 S   RMY 20
6/5  67/60/64/+1/0.76/000/00                 32 SSE AERO 36 SSE RMY 34
6/6  80/63/72/+9/0.00/747/82                 26 W   AERO 28 W   RMY 27
6/7  83/58/71/+7/0.18/602/66                 32 WNW AERO 36 WNW RMY 33 TSTM
6/8  72/52/62/-2/0.05/684/75                 37 WNW AERO 41 WNW RMY 38 TSTM
6/9  67/48/58/-6/0.00/466/51                 41 WNW AERO 45 WNW RMY 40
6/10 71/50/61/-4/0.00/841/92                 25 W   AERO 28 W   RMY 26
6/11 68/52/60/-5/0.06/…/..                 30 SSW AERO 35 SSW RMY 31
6/12 76/51/64/-1/T/…/..                    41 W   AERO 48 W   RMY 42
6/13 70/49/60/-5/0.00/…/..                 36 NW  AERO 46 NW  RMY 38
6/14 77/50/64/-2/0.00/…/..                 32 NNW AERO 38 NNW RMY 33
6/15 83/60/72/+6/0.00/…/..                 22 NW  AERO 26 NW  RMY 25
6/16 82/62/72/+6/0.00/…/..                 26 E   AERO 28 E   RMY 27
6/17 77/59/68/+1/T/…/..                    25 E   AERO 28 E   RMY 23 TSTM
6/18 75/55/65/-2/0.00/…/..                 22 SSW AERO 24 SSE RMY N/A
6/19 79/55/67/+0/0.00/…/..                 32 S   AERO 35 S   RMY 36
6/20 81/57/69/+1/0.00/…/..                 25 S   AERO 28 S   RMY 27
6/21 82/61/72/+1/0.40/…/..                 30 WSW AERO 31 W*  RMY 33

6/22 low temp since midnight is 59F; normal low now 59F

DAILY RECORDS FOR JUNE 2016
None so far

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

RECORDS FOR JUNE 22
HIGH 93F IN 1921, 2012
LOW 43F IN 1940
PRECIP 1.57 INS IN 1900
PEAK GUST 74 MPH NW IN 1988

RECORDS FOR JUNE 23
HIGH 93F IN 1888
LOW 45F IN 1885
PRECIP 0.70 INS IN 2006
PEAK GUST 63 MPH SE IN 1972 (AGNES)

TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle