Wednesday, June 1, 2022

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

WEDNESDAY, JUNE 1, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0410E
SUNSET:  1915E

OVERCAST AND COOL WITH RAIN SHOWERS DEVELOPING….

Showers and thunderstorms overnight left 0.25″ of much needed
rain in the gauge. A mere drop in the bucket compared to the
amount of the deficit for the year, but every little bit
helps.

Today has featured overcast skies with a cool east wind
keeping temperatures down. We did manage to sneak into the
low 60s before rain showers moved into the area early this
afternoon. An additional 0.06″ had fallen by the 1 P.M.
observation.

The wind has been rather light today, mostly under 10mph,
however a recent gust to 15mph was recorded. The average
speed for the day so far is only around 5mph.

Visibility peaked at around 50 miles today, but lowered to
around 8 miles during the showers at the 1 P.M. observation.

The high so far today is 62F, which is 9 degrees below the
normal maximum of 71F. The low since midnight is 52F, which
is 1 degree below the normal minimum of 53F.

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PRELIMINARY STATS FOR MAY 2022

TEMPERATURE, Deg. F
Avg. Max. 70.0 [+3.2] Avg. Min. 50.5 [+2.3] Mean      60.3 [+2.8] 24-hour corrected mean: 58.9
Max. for month: 93F on the 22nd
Min. for month: 39F on the 9th

HEATING DEGREE DAYS
Total heating units:    202 [-056] Total for the season:  5566 [-579] Total for last season: 5578

COOLING DEGREE DAYS
Total cooling units:     60 [+035] Total for the season:    60 [+032] Total for last season:   29

PRECIPITATION, Inches
Total: 1.30 [-2.52] Greatest in 24 hrs: 0.44 on the 2nd-3rd

SNOWFALL, Inches
Total: 0.0 [0.0] Greatest in 24 hrs: N/A

WIND, mph
Avg. uncorrected wind speed: 10.9 mph
Avg. corrected wind speed:   11.4 mph
Prevailing wind direction:   SSW [17%] Peak gust and direction:  48 ENE on the 7th

SUNSHINE:
Campbell-Stokes card minutes: 14910 of a possible 26226, or 57%
Astronomical total minutes: 15469 of a possible 27179, or 57%

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Today’s Observations:

7 A.M.
Weather: Overcast altostratus, few stratus fractus SE-S,
few stratocumulus S-W-NW
Temperature: 55; Dew Point: 52F; Relative Humidity: 90%
Wind: E @ 3 kts, wind light
Sea-level pressure: 1017.6 mb; 30.05 in. Hg: rising, then more slowly
Visibility: 40 miles, thin fog
6-hr Max temp: 55F
6-hr Min temp: 52F
24-hr Precip: 0.25 ins.
BHO SA 1155 E42 OVC 40 176/55/52/0803/005/ FEW STFRA SE-S
FEW SC S-W-NW THN F ALQDS WND LGT/ 8/72/ 51003 6001/ 70025
10055 20052

10 A.M.
Weather: Overcast altostratus, few stratocumulus all quadrants
Temperature: 59F; Dew Point: 52F; Relative Humidity: 72%
Wind: E @ 3 kts, wind light
Sea-level pressure: 1017.0 mb; 30.03 in Hg: falling, then more slowly
Visibility: 50 miles
3-hr Precip: Trace
BHO SA 1455 E45 OVC 50 170/59/52/1003/003/ FEW SC ALQDS RW-B24E33
WND LGT/ 8/52/ 56006 6000/

1 P.M.
Weather: Broken stratocumulus, overcast nimbostratus, light rain shower
Temperature: 58F, Dew point: 54F; Relative Humidity: 86%
Wind: E @ 7 kts
Sea-level pressure: 1015.5 mb; 29.99 in Hg: falling, then more slowly
Visibility: 8 miles, thin fog
6-hr Max temp: 62F
6-hr Min temp: 55F
6-hr Precip: 0.06 ins.
BHO SA 1755 E30 BKN 42 OVC 8RW- 155/58/54/0807/999/ RW-B44
THN F ALQDS/ 8/52/ 56015 6006/ 10062 20055

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SUMMARY FOR TUESDAY, MAY 31, 2022

TEMPERATURE (DEGREES F)
MAX…….81     NORMAL…..71
MIN…….52     NORMAL…..53
MEAN……67     NORMAL…..62

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….+5
TOTAL DEPARTURE FOR THE MONTH………………+88 [+2.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY…………..0  DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH…………202  DEPARTURE…….-56
TOTAL HEATING UNITS FOR THE SEASON……….5566  DEPARTURE……-579
TOTAL HEATING UNITS LAST SEASON TO DATE…..5578  DEPARTURE…….-12

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………..2  DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH………….60  DEPARTURE…….+35
TOTAL COOLING UNITS FOR THE SEASON…………60  DEPARTURE…….+32
TOTAL COOLING UNITS LAST SEASON TO DATE…….29  DEPARTURE…….+31

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….39 ENE @  8:32 A.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..42     @  8:31 A.M.
DAVIS #2 ………………37 ENE @  8:32 A.M.
RMY #2 (Instantaneous)…..39 ENE @  8:32 A.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………………28 ENE @  8:33 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..28     @  8:32 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………28 ENE @  8:32 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..28 ENE @  8:32 A.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…….11.3 ENE [270 total miles] VECTOR #2……………..11.9
DAVIS #2………………12.0 ENE
RMY #2………………..11.7 ENE
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…….0.25  DEPARTURE…..+0.09
TOTAL PRECIPITATION FOR THE MONTH………….1.30  DEPARTURE…..-2.54
TOTAL PRECIPITATION FOR THE YEAR………….17.59  DEPARTURE…..-5.03

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/722/82                44 W   AERO N/A    RMY 47
5/18  73/49/61/+3/0.00/803/91             39 NW  AERO N/A    RMY 41
5/19  60/52/56/-2/T/000/00                26 S   AERO N/A    RMY 28
5/20  75/49/62/+3/0.05/390/44             27 S   AERO N/A    RMY 28
5/21  86/57/72/+13/0.03/426/48            32 SSW AERO N/A    RMY 33
5/22  93/68/81/+22/T/792/89               40 NNW AERO N/A    RMY 41 TSTM
5/23  73/56/65/+6/0.00/437/49             33 N   AERO N/A    RMY 34
5/24  62/48/55/-5/0.00/643/72             30 ENE AERO N/A    RMY 30
5/25  73/47/60/0/0.00/743/83              25 S   AERO N/A    RMY 26
5/26  70/48/59/-1/0.00/664/74             34 SSW AERO N/A    RMY 38
5/27  79/57/68/+8/T/278/31                39 SW  AERO N/A    RMY 39
5/28  73/59/66/+5/0.28/063/07             27 SW  AERO N/A    RMY 27
5/29  77/53/65/+4/0.00/792/88             21 S   AERO N/A    RMY 22
5/30  86/57/72/+11/0.00/812/90            28 WSW AERO N/A    RMY 29
5/31  81/52/67/+5/0.24/750/83             39 ENE AERO N/A    RMY 39 TSTM

6/01 The low since midnight is 52F, the daily normal low is 53F

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.

05/22/2022: NEW HIGH MINIMUM TEMPERATURE RECORD OF 68F,
PREVIOUS RECORD WAS 67F SET IN 1992.

05/22/2022: TIED RECORD HIGH OF 93F, PREVIOUSLY SET IN 1911

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

RECORDS FOR JUNE 1
HIGH 90F IN 1937,2013
LOW 36F IN 1945 [Record for month] PRECIP 2.28 INS IN 1992
PEAK GUST 51e MPH SE IN 1952

RECORDS FOR JUNE 2
HIGH 91F IN 1895
LOW 41F IN 1907, 1929
PRECIP 2.36 INS IN 1982
SNOWFALL TRACE IN 1907 (ICE PELLETS)
PEAK GUST 63 MPH NW IN 2000

TODAY’S REPORT PREPARED BY: Matt Douglas