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Friday, June 16, 2023

June 16, 2023

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA FRIDAY, JUNE 16, 2023 ALL TIMES ARE…

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

FRIDAY, JUNE 16, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0407E
SUNSET:  1923E

SUNNY, WARM, AND PLEASANT OVERALL ON BLUE HILL…

Today has been a picture perfect day on Great Blue Hill!
Above average temperatures, light wind and sunny conditions
were present. Increasing cloudiness as the day progressed,
however, conditions remained favorable for a nice hike or
bike ride through the trails.

The wind has remained light and variable for most of the day
with winds mostly out of the WNW direction. The highest gust
was recorded at 17 mph during the overnight hours. The average
wind so far has only been about 8 MPH.

Visibility has been steady at 40 miles today due to the hazy
conditions caused by the pine pollen in the air. The forecasted
rain should help clear that out tomorrow and over the weekend.

The high temperature so far today is 78F, this is 2 degrees above
the normal maximum of 76F. The low since midnight is 60F, this is
2 degrees above the normal minimum of 58F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Few altocumulus NE-S, few cirrus NE-S
Temperature: 66F; Dew Point: 58F; Relative Humidity: 76%
Wind: WNW @ 7 kts
Sea-level pressure: 1007.2 mb; 29.74 in. Hg: increasing steadily
Visibility: 40 miles, hazy
6-hr Max temp: 66F
6-hr Min temp: 60F
24-hr Precip:  0.00 inches
BHO SA 1155 CLR 40 072/66/58/2907/974/ FEW AC NE-S FEW CI NE-S
HAZY/ 8/051 52018 10066 20060

10 A.M.
Weather: Scattered cumulus all quadrants, few stratocumulus
Temperature: 76F; Dew Point: 57F; Relative Humidity: 52%
Wind: WNW @ 4 kts, wind light and variable
Sea-level pressure: 1007.6 mb; 29.75 in. Hg: increasing unsteadily
Visibility: 40 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 40 076/76/57/2904/975/ SCT CU ALQDS FEW SC SSW
HAZY WND L/V/ 8/23/ 52004

1 P.M.
Weather: Scattered cumulus all quadrants, few stratocumulus all
quadrants, virga distant NNW
Temperature: 78F; Dew Point: 57F; Relative Humidity: 49%
Wind: WSW @ 4 kts, wind light and variable
Sea-level pressure: 1005.8 mb; 29.70 in. Hg: falling unsteadily
Visibility: 40 miles
6-hr Max temp: 78F
6-hr Min temp: 66F
6-hr Precip:  0.00 inches
BHO SA 1755 CLR 40 058/78/57/2504/970/ SCT CU ALQDS FEW SC ALQDS
VIRGA DSNT NNW HAZY/ WND L/V/ 8/250 57017 10078 20066

————————————————————–

SUMMARY FOR THURSDAY, JUNE 15, 2023

TEMPERATURE (DEGREES F)
MAX…….77   NORMAL…..75
MIN…….56   NORMAL…..58
MEAN……67   NORMAL…..66

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………+1
TOTAL DEPARTURE FOR THE MONTH………………..-32 [-2.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….0  DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE MONTH……………78  DEPARTURE…….+27
TOTAL HEATING UNITS FOR THE SEASON…………5274  DEPARTURE……-922
TOTAL HEATING UNITS LAST SEASON TO DATE…….5589  DEPARTURE……-315

COOLING DEGREE DAYS (SEASON: JAN 2023 THRU DEC 2023)
TOTAL COOLING UNITS FOR YESTERDAY…………….2  DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE MONTH……………31  DEPARTURE……..-6
TOTAL COOLING UNITS FOR THE SEASON…………..62  DEPARTURE……..-3
TOTAL COOLING UNITS LAST SEASON TO DATE………98  DEPARTURE…….-36

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

F420C (Official)……….E23 WNW   @  04:22 P.M.
VECTOR #1 (1-Sec)……….22 WNW   @  04:29 P.M.
VECTOR #2 (1-Sec)……….23 WNW   @  04:21 P.M.
DAVIS #1……………….23 W     @  04:29 P.M.
DAVIS #2 ………………21 WNW   @  04:22 P.M.
RMY #1 (Instantaneous)…..22 WNW   @  04:22 P.M.
RMY #2 (Instantaneous)…..22 WNW   @  04:21 P.M.
MERLIN…………………20 W
RICHARDS (C5C) (Inst)……23       @  04:22 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………23 WNW @  03:17 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..14     @  03:21 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17     @  10:23 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………15 W   @  03:21 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 WNW @  10:24 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..13 WNW @  03:21 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 WNW @  10:22 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………14     @  03:21 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………. 8.8 WNW [212 total miles] VECTOR #1……………….. 9.0
VECTOR #2……………….. 9.4
DAVIS #1………………… 9.0 W
DAVIS #2………………… 9.3 WNW
RMY #1………………….. 8.7 WNW
RMY #2………………….. 9.5 WNW
RICHARDS (C5C)…………… 9.2

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.16
TOTAL PRECIPITATION FOR THE MONTH…………..1.70 DEPARTURE…..-0.72
TOTAL PRECIPITATION FOR THE YEAR…………..22.45 DEPARTURE…..-2.57

————————————————————–

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   88/56/72/+10/0.00/859/95            21 WSW  VEC1 21 WSW RMY 21
6/2   91/53/72/+10/0.53/634/70            37 ENE  VEC1 39 ENE RMY 37 TSTM
6/3   53/43/48/-14/0.16/000/00            36 NE   VEC1 38 NE  RMY 36
6/4   52/43/48/-15/0.17/009/01            30 N    VEC1 32 N   RMY 29
6/5   58/47/53/-10/0.08/027/03            22 N    VEC1 24 N   RMY 23
6/6   72/50/61/-2/T/582/64                31 NNW  VEC1 31 NNW RMY 26 TSTM
6/7   65/50/58/-6/0.00/301/33             28 NW   VEC1 29 NW  RMY 29
6/8   64/51/58/-6/T/191/21                13 WNW  VEC1 13 WNW RMY 10
6/9   64/49/57/-7/0.47/210/23             20 WNW  VEC1 21 ESE RMY 20 TSTM
6/10  67/51/59/-6/0.05/365/40             26 WNW  VEC1 26 WNW RMY 26 TSTM
6/11  80/55/68/+3/0.00/823/90             23 S    VEC1 24 S   RMY 24
6/12  79/60/70/+5/0.15/439/48             32 SSE  VEC1 33 SSE RMY 31
6/13  78/59/69/+3/0.03/421/46             26 SE   VEC1 27 SE  RMY 24
6/14  78/57/68/+2/0.06/…/..             38 S    VEC1 39 S   RMY 39 TSTM
6/15  77/56/67/+1/0.00/…/..             23 WNW  VEC1 22 WNW RMY 22

6/16  The low since midnight is 60F, the daily normal low is 58F

DAILY RECORDS

06/02/2023: TIED RECORD HIGH MAXIMUM TEMPERATURE OF 91F,
ALSO SET IN 1895

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

RECORDS FOR JUNE 16
HIGH 92F IN 1891
LOW 44F IN 1926
PRECIP 2.17 INS IN 1931
PEAK GUST 55 MPH W IN 1958

RECORDS FOR JUNE 17
HIGH 93F IN 1894
LOW 44F IN 1920
PRECIP 2.79 INS 2001 (Sub-Tropical storm ALLISON)
PEAK GUST 55e MPH S IN 1977

TODAY’S REPORT PREPARED BY: Amanda Joly

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Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
Part I — Data Use Policy
§ 01

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§ 02

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§ 05

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Effective January 1, 2025 · Blue Hill Observatory & Science Center · Milton, Massachusetts
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