Monday, May 23, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, MAY 23, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0416E
SUNSET: 1907E
RECORD HEAT YESTERDAY, MUCH LESS HUMID AND SEASONABLE TODAY….
Yesterday featured record warmth for the hill. First we
set a new record high minimum for the date with a low of
68F, this broke the previous record of 67F which was set
back in 1992.
We also tied the record high for the date with a high of
93F. This was also previously set back in 1911.
A strong to severe thunderstorm developed just to the
northwest of the Observatory yesterday afternoon. While
this storm was bringing down trees in sections of Boston,
here on the hill we only got a few rain drops out of it
and an outflow boundary gust to 40mph out of the NNW.
Thunder could be heard here on the hill, as such it will
go down as a thunderstorm day.
A line of storms pushed through western portions of the
region last evening, but the line completely dissipated
before reaching here. As such not a drop of rain accompanied
the cold front.
The lack of rainfall is really starting to become concerning
with the Drought Monitor now having eastern Massachusetts
and Rhode Island classified as abnormally dry. The rainfall
deficits here on the hill are running -1.84″ for the month,
and is now -4.34″ for the year to date.
Today has been a rather pleasant day, despite a lot of
cloud cover this morning. Drier air and much more reasonable
temperatures is making for ideal weather for outdoor
activity.
The wind was a bit gusty this morning, but has since diminished
to light northerly early this afternoon. The average speed for
the day so far is around 11mph.
Visibility has been very good all day holding between 60-70
miles.
The high so far today is 72F, which is 3 degrees above the
normal maximum of 69F. The low since midnight is 58F, which
is 8 degrees above the normal minimum of 50F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Broken altocumulus, thin overcast cirrus, few stratocumulus
all quadrants
Temperature: 59F; Dew Point: 46F; Relative Humidity: 61%
Wind: N @ 14G22 kts
Sea-level pressure: 1020.0 mb; 30.12 in. Hg: rising, then more slowly
Visibility: 60 miles
6-hr Max temp: 67F
6-hr Min temp: 58F
24-hr Precip: Trace
BHO SA 1155 E75 BKN 250 -OVC 60 200/59/46/3514G22/012/ FEW SC ALQDS/
8/551 51021 70000 10067 20058
10 A.M.
Weather: Overcast stratocumulus, clearing line distant
SW-NW, sun dimly visibile
Temperature: 65F; Dew Point: 49F; Relative Humidity: 56%
Wind: N @ 8 kts
Sea-level pressure: 1021.6 mb; 30.17 in Hg: rising, then more slowly
Visibility: 60 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 E30 OVC 60 216/65/49/0108/017/ CLRNG LINE DSNT SW-NW
SUN DMLY VSBL/ 8/5// 51016
1 P.M.
Weather: Scattered stratocumulus, scattered altocumulus,
thin broken cirrus
Temperature: 71F, Dew point: 51F; Relative Humidity: 49%
Wind: N @ 5 kts, wind light
Sea-level pressure: 1020.9 mb; 30.15 in Hg, falling, then more rapidly
Visibility: 70 miles
6-hr Max temp: 72F
6-hr Min temp: 59F
6-hr Precip: 0.00 ins.
BHO SA 1755 45 SCT 80 SCT E250 -BKN 70 209/71/51/0105/015/ WND LGT/
8/551 58007 10072 20059
————————————————————–
SUMMARY FOR SUNDAY, MAY 22, 2022
TEMPERATURE (DEGREES F)
MAX…….93R NORMAL…..68
MIN…….68R NORMAL…..50
MEAN……81 NORMAL…..59
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……+22
TOTAL DEPARTURE FOR THE MONTH………………+55 [+2.3 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…….-23
TOTAL HEATING UNITS FOR THE SEASON……….5545 DEPARTURE……-546
TOTAL HEATING UNITS LAST SEASON TO DATE…..5502 DEPARTURE…….+43
COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY………….16 DEPARTURE…….+15
TOTAL COOLING UNITS FOR THE MONTH………….47 DEPARTURE…….+34
TOTAL COOLING UNITS FOR THE SEASON…………47 DEPARTURE…….+31
TOTAL COOLING UNITS LAST SEASON TO DATE…….11 DEPARTURE…….+36
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….40 NNW @ 4:42 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..42 @ 4:42 P.M.
DAVIS #2 ………………37 S @ 2:59 P.M.
RMY #2 (Instantaneous)…..41 NNW @ 4:42 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………………26 NW @ 8:26 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..27 @ 8:26 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………28 W @ 8:26 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..27 NW @ 8:26 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……..12.5 WSW [299 total miles]
VECTOR #2………………13.2
DAVIS #2……………….13.1 SW
RMY #2…………………13.3 SW
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…..-1.84
TOTAL PRECIPITATION FOR THE YEAR………….17.06 DEPARTURE…..-4.34
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 93/68/81/+22/T/…/.. 40 NNW AERO N/A RMY 41
5/23 The low since midnight is 58F, 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.
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 MAY 23
HIGH 92F IN 1964,1992
LOW 38F IN 1976
PRECIP 1.60 INS IN 1919
PEAK GUST 49e MPH W IN 1945
RECORDS FOR MAY 24
HIGH 92F IN 1964
LOW 35F IN 1956
PRECIP 2.13 INS IN 1951
PEAK GUST 54 MPH NNE IN 2005
TODAY’S REPORT PREPARED BY: Matt Douglas
