Saturday, June 8, 2024

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

SATURDAY, JUNE 8, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0407E
SUNSET:  1920E

BREEZY WITH INCREASING CLOUD COVERAGE, VERY LIGHT SHOWERS….

Blue skies to begin the morning did not last long, as cumulus clouds
quickly began to develop and increase in coverage. With a lower dew point
than the past few days and a nice breeze, it is quite nice outside,
though there have been a few sprinkles to begin the afternoon.

The temperature bottomed out in the mid 50s this morning and has
risen to the low 70s, which is just about average for the time of year.
As mentioned previously, the dew point has held in the mid 50s today, meaning
it is a bit less sticky out there than it has been recently.

Winds, which were slow through the day yesterday, have picked up overnight
and remain breezy so far today. The average speed is 13mph so far, but we’ve
had frequent gusts in the 25-30mph range. The peak gust to this point is about
32mph, occurring a touch before 10:45am.

Visibility peaked at 60 miles this morning, and has since fallen to 50 miles,
largely due to showers in the distance to our west through north.

The maximum temperature so far today is 72F degrees, which is
1 degree below the normal high of 73F. The minimum temperature
since midnight is 54F degrees, which is 1 degree below the
normal low of 55F.

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Today’s Observations:

7 A.M.
Weather: Clear, few small cumulus distant W-NW,
few altocumulus/altostratus distant WSW-NNE
Temperature: 61F; Dew Point: 54F; Relative Humidity: 78%
Wind: W @ 11G17 kts
Sea-level pressure: 1004.8 mb; 29.67 in. Hg: rising, then more slowly
Visibility: 60 miles
6-hr Max temp: 61F
6-hr Min temp: 54F
24-hr Precip:  0.14
BHO SA 1155 CLR 60 048/61/54/2711G17/967/ FEW SML CU DSNT W-NW
FEW AC/AS DSNT WSW-NNE/ 8/170 51014 70014 10061 20054

10 A.M.
Weather: Broken cumulus
Temperature: 68F; Dew Point: 54F; Relative Humidity: 60%
Wind: WNW @ 14G23 kts
Sea-level pressure: 1005.0 mb; 29.68 in. Hg: falling, then rising
Visibility: 50 miles
3-hr Precip:  0.00 inches
BHO SA 1455 E35 BKN 50 050/68/54/2914G23/968/ 8/200 53002

1 P.M.
Weather: Broken cumulonimbus, broken altocumulus
Temperature: 70F; Dew Point: 53F; Relative Humidity: 54%
Wind: W @ 13G22 kts
Sea-level pressure: 1005.3 mb; 29.69 in. Hg: rising unsteadily
Visibility: 50 miles, 30 miles WSW-WNW, virga WSW-WNW
6-hr Max temp: 72F
6-hr Min temp: 61F
6-hr Precip:  Trace
BHO SA 1755 E50 BKN 100 BKN 50 053/70/53/2713G22/969/ VIRGA DSNT WSW-WNW
VSBY 30 WSW-WNW RW-B07E11B27E34B47E49 PCPN VRY LGT/ 8/360 52003 6000/
10072 20061

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SUMMARY FOR FRIDAY, JUNE 7, 2024

TEMPERATURE (DEGREES F)
MAX…….80   NORMAL…..73
MIN…….60   NORMAL…..55
MEAN……70   NORMAL…..64

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+6
TOTAL DEPARTURE FOR THE MONTH…………………….+35 [+4.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY…………….0  DEPARTURE……..-4
TOTAL HEATING UNITS FOR THE MONTH…………….0  DEPARTURE…….-29
TOTAL HEATING UNITS FOR THE SEASON…………5379  DEPARTURE……-795
TOTAL HEATING UNITS LAST SEASON TO DATE…….5253  DEPARTURE……+126

COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….5  DEPARTURE……..+3
TOTAL COOLING UNITS FOR THE MONTH……………19  DEPARTURE……..+5
TOTAL COOLING UNITS FOR THE SEASON…………..56  DEPARTURE…….+14
TOTAL COOLING UNITS LAST SEASON TO DATE………45  DEPARTURE…….+11

PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated

F420C (Official)……….E26 WNW  @  11:48 P.M.
VECTOR #1 (1-Sec)……….27 WNW  @  11:48 P.M.
VECTOR #2 (1-Sec)……….25 WNW  @  11:48 P.M.
DAVIS #1……………….26 W    @  11:48 P.M.
DAVIS #2 ………………26 WNW  @  11:48 P.M.
RMY #1 (Instantaneous)…..27 WNW  @  11:48 P.M.
RMY #2 (Instantaneous)…..27 WNW  @  11:48 P.M.
MERLIN…………………24 W
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………19 WNW  @  11:51 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..19      @  11:49 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..20      @  11:49 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………20 W    @  11:49 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………19 WNW  @  11:49 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..18 W    @  11:49 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..19 WNW  @  11:49 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….6.4 WNW [154 total miles] VECTOR #1……………..7.0
VECTOR #2……………..7.4
DAVIS #1………………6.6 W
DAVIS #2………………6.8 WNW
RMY #1………………..6.7 WNW
RMY #2………………..7.3 WNW
RICHARDS (C5C)…………OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.14 DEPARTURE…..-0.03
TOTAL PRECIPITATION FOR THE MONTH…………..0.15 DEPARTURE…..-0.98
TOTAL PRECIPITATION FOR THE YEAR (2024)…….30.97 DEPARTURE…..+7.24

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PRELIMINARY CLIMATE SUMMARY FOR JUNE CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY GUST
PEAK GUST: F420C (Official)
VEC1: Vector #1 1-second gust
RMY:  R.M. Young #1 wind gust recording system (Instantaneous)
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M:    Missing data

6/1  79/53/66/+4/0.00/878/97             18 WNW VEC1 20 NW  RMY 20
6/2  83/52/68/+6/0.00/780/86             21 W   VEC1 21 W   RMY 21
6/3  78/57/68/+6/0.00/626/69             22 NE  VEC1 22 NE  RMY 21
6/4  75/55/65/+2/0.00/817/90             20 SSW VEC1 19 SSW RMY 19
6/5  84/56/70/+7/T/564/62                29 SW  VEC1 28 SW  RMY 29
6/6  74/60/67/+4/0.01/…/..             20 SSE VEC1 20 SSE RMY 20
6/7  80/60/70/+6/0.14/…/..             26 WNW VEC1 27 WNW RMY 27

6/8 The low since midnight is 54F, the daily normal low is 55F.

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JUNE DAILY RECORDS TO DATE

NONE.

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

RECORDS FOR JUNE 8
HIGH 94F IN 1984
LOW 37F IN 1932
PRECIP 1.11 INS IN 1923
PEAK GUST 86e MPH WNW IN 1946 [Record for month]

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

TODAY’S REPORT PREPARED BY: Joshua Polen