Tuesday, June 9, 2015
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, JUNE 9, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME
HUMID CONDITIONS CONTINUE, JUST A TRACE OF RAIN SO FAR,
WINDS GUST OVER 40 MPH ON MONDAY
Yesterday, strong southerly winds gusted to an official
maximum of 41 MPH from the SSW at exactly 3:00 PM EST.
Some instruments, including the RM Young, gusted to a station
high of 48 MPH. The calendar day average wind speed for
Monday was 21.0 MPH predominately from the SSW.
Mostly cloudy and humid conditions continued overnight,
with a low reading this morning of 63F. Spotty showers
began just before the 10:00 AM EST observation, with
additional showers popping up throughout the region
by this time.
By the 1:00 PM EST observation light rain had begun
once again, leaving just a trace at observation time.
During a quick break in the clouds, a maximum of 76F
had been recorded early in the day.
Today’s Observations:
7 A.M.
Weather: Light fog, overcast stratus
Temperature: 64F; Dew Point: 62F; Wind: SSW at 13 kts
Sea-level pressure: 29.75 ins. Hg, falling steadily
Visibility: 6 miles, obscured by light fog
6-hr Max temp: 64F
6-hr Min temp: 63F
24-hr precip: Trace
BHO SA 1155 E5 OVC 6F 075/64/62/2013/975/
8/6// 57002 MANUAL 6000/ 10064 20063
10 A.M.
Weather: Light rain showers, beginning at 9:48 AM EST,
scattered stratocumulus, broken alto/nimbostratus
Temperature: 70F; Dew Point: 64F; Wind: S at 13G19 kts
Sea-level pressure: 29.72 ins. Hg, falling, then more quickly
Visibility: 10 miles, obscured by light rain showers, thin fog
3-hr precip: Trace
BHO SA 1455 20 SCT E90 BKN 10RW- 063/70/64/1913G19/972/
RW-B48 THN FG ALQDS PRCP VRY LGT/ 8/520 58012 MANUAL 6000/
1 P.M.
Weather: Light rain, begining at 12:28 PM EST, broken stratocumulus,
overcast alto/nimbostratus
Temperature: 69F; Dew Point: 65F; Wind: S at 13G31 kts
Sea-level pressure 29.69 ins. Hg, falling then more quickly
Visibility: 10 miles, thin fog, hazy, light rain
6-hr Max temp: 76F
6-hr Min temp: 64F
6-hr precip: Trace
BHO SA 1755 E30 BKN 100 OVC 10R- 054/69/65/1813G31/969/
R-B28 PRCP VRY LGT THN FG ALQDS HAZY/
8/52/ 56009 MANUAL 6000/ 10076 20064
SUMMARY FOR MONDAY, JUNE 8, 2015
TEMPERATURE (DEGREES F)
MAX…..73 NORMAL…..73
MIN…..50 NORMAL…..55
MEAN….62 NORMAL…..64
DEPARTURE FROM 30-YEAR NORMAL……………………-2
TOTAL DEPARTURE FOR THE MONTH…………………..-61 [-7.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………3 DEPARTURE………..-1
TOTAL HEATING UNITS FOR THE MONTH…………..78 DEPARTURE……….+45
TOTAL HEATING UNITS FOR THE SEASON………..6482 DEPARTURE………+146
TOTAL HEATING UNITS LAST SEASON TO DATE……6414 DIFFERENCE………+68
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..0 DEPARTURE……….-2
TOTAL COOLING UNITS FOR THE MONTH…………..0 DEPARTURE………-16
TOTAL COOLING UNITS FOR THE SEASON…………49 DEPARTURE……….+9
TOTAL COOLING UNITS LAST SEASON TO DATE…….32 DIFFERENCE……..+17
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………41 SSW AT 3:00 P.M.
ASOS…………………..46 SSW AT 2:27 P.M.
DAVIS………………….47 SSW AT 2:27 P.M. RMY 48
FASTEST MILE FOR YESTERDAY………………..35 SSW AT 3:07 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..35 S AT 4:29 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….34 SSW AT 3:21 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..21.0 SSW
ASOS…………………..20.6
DAVIS………………….18.8 S [194 deg.]
* Last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….TRACE DEPARTURE….-0.17
ASOS……………0.00
TOTAL PRECIPITATION FOR THE MONTH………..1.55 DEPARTURE….+0.22
ASOS……………1.57
TOTAL PRECIPITATION FOR THE YEAR………. 20.86 DEPARTURE….-2.94
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/SNOWFALL/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/-15/0.69/0.0/000/00 32 NE RMY 34
6/2 47/44/46/-16/…./0.0/000/00 28 NNE RMY 28
6/3 59/44/52/-10/0.00/0.0/…/.. 16 ESE RMY 16
6/4 63/46/55/-8/0.00/0.0/…/.. 17 E RMY 16
6/5 70/49/60/-3/T/0.0/…/.. 17 NNE RMY 17
6/6 65/52/59/-4/0.06/0.0/…/.. 26 ENE RMY 27
6/7 73/49/61/-3/0.00/0.0/…/.. 28 S RMY 29
6/8 73/50/62/-2/T/0.0/…/.. 41 SSW RMY 48
6/9 low since midnight is 63F; normal low is now 55F
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 9
HIGH 94F IN 2008
LOW 40F IN 1980
PRECIP 2.08 INCHES IN 1931
PEAK GUST 67 MPH NW IN 1973
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
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
