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Sunday, May 22, 2022

May 22, 2022

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SUNDAY, MAY 22, 2022 ALL TIMES ARE…

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

SUNDAY, MAY 22, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0416E
SUNSET:  1906E

RECORD HEAT TODAY AT BLUE HILL, VERY HUMID AS WELL….

The overnight low early this morning was 68F, which if it
holds until midnight tonight, will establish a new record
high minimum for the date. The previous record was 67F set
back in 1992.

The mercury has reached 93F so far early this afternoon,
which ties the record high for the date which was previously
set back in 1911.

To go along with the heat, the dew point has been in the
upper 60s all day making for very humid conditions today.
The heat index at the 1 P.M. observation was a steamy 96F!

The wind has been blowing out of the south-southwest since
late morning with an increase in speed into early this
afternoon. The average speed for the day so far is around
13mph with a peak gust of 31mph occurring just after 11:30 A.M.

Visibility has been limited all day, holding between 15-20
miles thanks to hazy conditions, some of which is due to
high levels of pine pollen. As a matter of fact clouds of
pollen can be seen coming off the trees when there is a
gust of wind.

The high so far today is 93F, which is 25 degrees above the
normal maximum of 68F. The low since midnight is 68F, which
is 18 degrees above the normal minimum of 50F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few cirrus distant SW-NW
Temperature: 75F; Dew Point: 66F; Relative Humidity: 74%
Wind: WSW @ 6 kts, wind light
Sea-level pressure: 1016.3 mb; 30.01 in. Hg: rising, then more slowly
Visibility: 15 miles, hazy
6-hr Max temp: 75F
6-hr Min temp: 68F
24-hr Precip: Trace
BHO SA 1155 CLR 15 163/75/66/2506/001/ FEW CI DSNT SW-NW HAZY
WND LGT/ 8/001 51008 70000 10075 20068

10 A.M.
Weather: Clear, few cirrus distant WSW-NNW
Temperature: 89F; Dew Point: 68F; Relative Humidity: 50%
Wind: SSW @ 7 kts
Sea-level pressure: 1015.3 mb; 29.98 in Hg: falling, then more rapidly
Visibility: 20 miles, hazy
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 20 153/89/68/2107/998/ FEW CI DSNT WSW-NNW HAZY/
8/001 58010

1 P.M.
Weather: Thin scattered cirrus, cumulonimbus distant NNW-N,
few cumulus all quadrants
Temperature: 92F, Dew point: 68F; Relative Humidity: 46%
Wind: SW @ 14G23 kts, peak wind SW 30mph at 11:59 A.M.
Sea-level pressure: 1013.4 mb; 29.93 in Hg, falling, then more rapidly
Visibility: 20 miles, hazy
6-hr Max temp: 93F
6-hr Min temp: 75F
6-hr Precip:  0.00 ins.
BHO SA 1755 250 -SCT 20 134/92/68/2214G23/993/ CB DSNT NNW-N
FEW CU ALQDS HAZY PK WND 2326/59/ 8/301 58019 10093 20075

————————————————————–

SUMMARY FOR SATURDAY, MAY 21, 2022

TEMPERATURE (DEGREES F)
MAX…….86     NORMAL…..68
MIN…….57     NORMAL…..50
MEAN……72     NORMAL…..59

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……+13
TOTAL DEPARTURE FOR THE MONTH………………+33 [+1.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY…………..0  DEPARTURE……..-7
TOTAL HEATING UNITS FOR THE MONTH…………181  DEPARTURE…….-16
TOTAL HEATING UNITS FOR THE SEASON……….5545  DEPARTURE……-539
TOTAL HEATING UNITS LAST SEASON TO DATE…..5502  DEPARTURE…….+43

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………..7  DEPARTURE……..+6
TOTAL COOLING UNITS FOR THE MONTH………….31  DEPARTURE…….+19
TOTAL COOLING UNITS FOR THE SEASON…………31  DEPARTURE…….+16
TOTAL COOLING UNITS LAST SEASON TO DATE……..4  DEPARTURE…….+27

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….32 SSW @  5:59 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..33     @  5:59 P.M.
DAVIS #2 ………………28 S   @  6:21 P.M.
RMY #2 (Instantaneous)…..33 SSW @  5:59 P.M.
ASOS………..OUT OF SERVICE D/T RENOVATIONS
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………22 SSW @  6:21 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22     @  6:21 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 SSW @  8:01 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..22 SSW @  6:21 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……..OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY #1 AVERAGE……OUT OF SERVICE D/T RENOVATIONS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….. 8.6 S [207 total miles] VECTOR #2……………… 9.5
DAVIS #2………………. 9.1 SSW
RMY #2………………… 9.6 SSW
RMY #1……….OUT OF SERVICE D/T RENOVATIONS
ASOS…………OUT OF SERVICE D/T RENOVATIONS
VECTOR #1…….OUT OF SERVICE D/T RENOVATIONS
DAVIS #1……..OUT OF SERVICE D/T RENOVATIONS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……TRACE  DEPARTURE…..-0.12
TOTAL PRECIPITATION FOR THE MONTH………….0.78  DEPARTURE…..-1.72
TOTAL PRECIPITATION FOR THE YEAR………….17.06  DEPARTURE…..-4.22

PRELIMINARY CLIMATE SUMMARY FOR MAY 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
M:    Missing data

5/01  69/40/55/+2/0.00/786/93             25 SSE AERO 25 SSE RMY 27
5/02  58/42/50/-4/0.21/059/07             21 NE  AERO 19 NE  RMY 20
5/03  57/43/50/-4/0.23/229/27             23 ENE AERO 22 ENE RMY 24
5/04  52/45/49/-5/0.14/000/00             19 NW  AERO 18 SE  RMY 19
5/05  70/46/58/+3/0.00/666/78             23 NNW AERO 21 NNW RMY 23
5/06  63/49/56/+1/0.00/051/06             20 S   AERO 18 S   RMY 21
5/07  49/42/46/-9/0.00/112/13             48 ENE AERO 51 ENE RMY 50
5/08  51/40/46/-9/0.00/621/72             43 ENE AERO N/A    RMY 47
5/09  54/39/47/-9/0.00/838/97             43 ENE AERO N/A    RMY 46
5/10  57/43/50/-6/0.00/866/100            44 ENE AERO N/A    RMY 46
5/11  58/43/51/-5/0.00/182/21             36 NE  AERO N/A    RMY 38
5/12  68/48/58/+1/T/487/56                17 ENE AERO N/A    RMY 18
5/13  82/56/69/+12/0.00/619/71            33 SSW AERO N/A    RMY 34
5/14  85/63/74/+17/0.02/621/71            33 SW  AERO N/A    RMY 34
5/15  78/62/70/+13/0.03/394/45            23 SW  AERO N/A    RMY 24
5/16  83/58/71/+13/0.07/623/71            40 SSW AERO N/A    RMY 45 TSTM
5/17  74/53/64/+6/T/…/..                44 W   AERO N/A    RMY 47
5/18  73/49/61/+3/0.00/…/..             39 NW  AERO N/A    RMY 41
5/19  60/52/56/-2/T/…/..                26 S   AERO N/A    RMY 28
5/20  75/49/62/+3/0.05/…/..             27 S   AERO N/A    RMY 28
5/21  86/57/72/+13/0.03/…/..            32 SSW AERO N/A    RMY 33

5/22  The low since midnight is 68F, the daily normal low is 50F

DAILY RECORDS

05/14/2022: NEW HIGH MINIMUM TEMPERATURE RECORD OF 63F,
PREVIOUS RECORD WAS 60F SET IN 1944.

05/14/2022: TIED RECORD HIGH OF 85F, PREVIOUSLY SET IN 1961

05/15/2022: NEW RECORD HIGH MINIMUM WAS SET OF 62F,
PREVIOUS RECORD WAS 58F set in 1896, 1961, and 2004.

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

RECORDS FOR MAY 22
HIGH 93F IN 1911
LOW 35F IN 1907
PRECIP 3.75 INCHES IN 1920
PEAK GUST 49e MPH SSW IN 1947

RECORDS FOR MAY 23
HIGH 92F IN 1964,1992
LOW 38F IN 1976
PRECIP 1.60 INS IN 1919
PEAK GUST 49e MPH W IN 1945

TODAY’S REPORT PREPARED BY: Matt Douglas

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Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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