Monday, June 13, 2016

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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JUNE 13, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME

ANOTHER GUSTY DAY WITH WINDS FROM THE W-NNW AND BELOW AVERAGE
TEMPERATURES

Winds were gusty again this morning and early afternoon with a
peak gust of 36 MPH NW recorded at 7:16AM EST.  An overnight low
of 49F was 7F below normal.  The maximum temperature at the 1:00PM
EST observation was only 70F, still 4F below normal.

By the 1:00PM EST observation, skies were mostly cloudy with a broken
stratocumulus layer and a broken cirrus layer.  Visibility remained
at 70 miles at each observation.

Today’s Observations:

7 A.M.
Weather: Scattered altostratus, few cumulus in all directions
Temperature: 59F; Dew Point: 47F; Wind: WNW at 14G21 kts
Sea-level pressure: 29.69 in. Hg, rising, then steady
Visibility: 70 miles
6-hr Max temp: 59F
6-hr Min temp: 49F
24-hr precip: Trace
BHO SA 1155 84 SCT 70 055/59/47/3014G21/969/ FEW CU ALQDS/
8/110 51017 10059 20049

10 A.M.
Weather: Scattered cumulus, scattered altocumulus
Temperature: 65F; Dew Point: 48F; Wind: WNW at 17G27 kts
Sea-level pressure: 29.70 in. Hg, falling, then rising
Visibility: 70 miles
BHO SA 1455 36 SCT 110 SCT 70 057/65/48/2917G27/970/ 8/150 53002

1 P.M.
Weather: Broken stratocumulus, broken cirrus
Temperature: 66F; Dew Point: 48F; Wind: WNW at 16G24 kts
Sea-level pressure: 29.68 in. Hg, falling, then more quickly
Visibility: 70 miles
6-hr Max temp: 70F
6-hr Min temp: 59F
BHO SA 1755 E49 BKN 250 BKN 70 052/66/48/3016G24/968/
8/502 58005 10070 20059

SUMMARY FOR SUNDAY, JUNE 12, 2016

TEMPERATURE (DEGREES F)
MAX…..76   NORMAL…..74
MIN…..51   NORMAL…..56
MEAN….64   NORMAL…..65

DEPARTURE FROM 30-YEAR NORMAL…………………….-1
TOTAL DEPARTURE FOR THE MONTH…………………….+9 [+0.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………1   DEPARTURE……….-2
TOTAL HEATING UNITS FOR THE MONTH…………..28   DEPARTURE………-18
TOTAL HEATING UNITS FOR THE SEASON………..5276   DEPARTURE…….-1073
TOTAL HEATING UNITS LAST SEASON TO DATE……6482   DIFFERENCE……-1206

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………0   DEPARTURE……….-3
TOTAL COOLING UNITS FOR THE MONTH…………..19   DEPARTURE……….-8
TOTAL COOLING UNITS FOR THE SEASON………….67   DEPARTURE………+16
TOTAL COOLING UNITS LAST SEASON TO DATE……..77   DIFFERENCE……..-10

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….41  W   AT  9:02 A.M.
ASOS……………………44  W   AT  9:02 A.M.
DAVIS…………………..40 WNW  AT  2:36 P.M. RMY 42
FASTEST MILE FOR YESTERDAY…………………30  W   AT 12:17 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………31  W   AT 12:19 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..27  W   AT 12:19 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..19.6 WNW
ASOS…………………..17.7
DAVIS………………….16.5 W [270 Deg.] * Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…Trace  DEPARTURE……-0.16
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.05  DEPARTURE……-0.92
ASOS…………..1.08
TOTAL PRECIPITATION FOR THE YEAR……….21.12  DEPARTURE……-3.51
ASOS………….21.52

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/…/..                 26 NE  AERO 30 NE  RMY N/A
6/2  68/54/61/-1/0.00/…/..                 21 NE  AERO 22 NE  RMY 21
6/3  70/57/64/+2/T/…/..                    16 SSW AERO 17 SSW RMY 16
6/4  81/61/71/+8/0.00/…/..                 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/…/..                 26 W   AERO 28 W   RMY 27
6/7  83/58/71/+7/0.18/…/..                 32 WNW AERO 36 WNW RMY 33 TSTM
6/8  72/52/62/-2/0.05/…/..                 37 WNW AERO 41 WNW RMY 38
6/9  67/48/58/-6/0.00/…/..                 41 WNW AERO 45 WNW RMY 40
6/10 71/50/61/-4/0.00/…/..                 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 low temp since midnight is 49F; normal low now 56F

* Last of several occurrences

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 13
HIGH 93F IN 1988
LOW 43F IN 1982
PRECIP 6.07 INS 1998 [Record for month] PEAK GUST 69 MPH N IN 1956

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

TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle