Thursday, July 28, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
THURSDAY, JULY 28, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0433E
SUNSET: 1908E
SOME RAIN SHOWERS TO THE WEST AND NORTH, BUT NONE AT THE
SUMMIT….
We’re on a nine-day dry streak as we head into late July.
Today was uneventful, but some showers did miss us during
the 1 P.M. observation!
Visibility has been limited today, averaging 30 miles due to
a persistent haze! Back to the status quo, as yesterday was
a different story.
The yearly rain deficit has now reached 9.11″ below normal!
Most of the area, including the Greater Boston Area, points
north and northwest out to the Worcester area are
under a severe drought.
With only 0.73″ of rain for the month of July so far, we decided
to take a look at the driest Julys on record here at Blue Hill.
Here is the list. If the month ended today, this year would
rank 4th on the list.
BHO Lowest July Precipitation, inches (1885-2021):
1. 0.13 in 1953
2. 0.33 in 1957
3. 0.72 in 1968
4. 0.85 in 1917
5. 0.87 in 1937
6. 0.92 in 1965
7. 1.08 in 1939
8. 1.11 in 1983
9. 1.13 in 1970
10. 1.14 in 1946
Average temperatures for the month are really creeping up the
rankings list despite the seemingly pleasant start to the month.
Through yesterday, the 24-hour adjusted mean temperature is
75.0F. This means if the month ended today, we would be in
second place on the rankings list.
BHO Warmest July 24-Hour Adjusted Mean Temperature, deg F (1885-2021):
1. 75.1 in 2010
2. 74.9 in 1952
3. 74.5 in 2019
4. 74.1 in 1994
74.1 in 2013
5. 74.0 in 2011
74.0 in 2016
6. 73.8 in 1999
7. 73.6 in 2018
73.6 in 2020
The stats above were compiled by our Chief Scientist Mike Iacono.
Drought section written by Assistant Chief Observer,
the one and only Matthew Douglas!!!!
The high so far today is 86F, which is 4 degrees above the
normal maximum of 82F. The low since midnight is 67F, which
is 3 degrees above the normal minimum of 64F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Broken altocumulus, Overcast cirrus, Few breaks
in overcast NE-SE
Temperature: 71F; Dew Point: 67F; Relative Humidity: 87%
Wind: S @ 7 kts
Sea-level pressure: 1012.1 mb; 29.89 in. Hg: rising unsteadily
Visibility: 40 miles
6-hr Max temp: 71F
6-hr Min temp: 67F
24-hr Precip: 0.00 ins.
BHO SA 1155 90 BKN 250 OVC 40 121/71/67/1807/989/ FEW BINOVC
NE-SE/ 8/032 52001 10071 20067
10 A.M.
Weather: Scattered cumulus, Broken altocumulus, Broken cirrostratus
Temperature: 80F; Dew Point: 70F; Relative Humidity: 73%
Wind: SSW @ 8G16 kts
Sea-level pressure: 1011.5 mb; 29.86 in Hg: Rising, then falling
Visibility: 30 miles, hazy
3-hr Precip: 0.00 ins.
BHO SA 1455 20 SCT 75 SCT 110 BKN 250 BKN 30 115/80/70/2008G16/986/
HAZY/ 8/236 58006
1 P.M.
Weather: Broken cumulus, broken altocumulus
Temperature: 84F, Dew point: 74F; Relative Humidity: 63%
Wind: SSW @ 13G22 kts
Sea-level pressure: 1010.4 mb; 29.83 in Hg: falling, then
more rapidly
Visibility: 30 miles, hazy
6-hr Max temp: 85F
6-hr Min temp: 71F
6-hr Precip: 0.00 ins.
BHO SA 1755 40 BKN 110 BKN 30 104/84/74/2013G22/983/ HAZY/
8/230 58011 10086 20071
————————————————————–
SUMMARY FOR WEDNESDAY, JULY 27, 2022
TEMPERATURE (DEGREES F)
MAX…….86 NORMAL…..82
MIN…….61 NORMAL…..64
MEAN……74 NORMAL…..73
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+1
TOTAL DEPARTURE FOR THE MONTH……………….+93 [+3.2 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….0 DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH…………….0 DEPARTURE……..-6
TOTAL HEATING UNITS FOR THE SEASON……………0 DEPARTURE……..-6
TOTAL HEATING UNITS LAST SEASON TO DATE………26 DEPARTURE…….-26
COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….9 DEPARTURE……..+1
TOTAL COOLING UNITS FOR THE MONTH…………..299 DEPARTURE…….+84
TOTAL COOLING UNITS FOR THE SEASON………….454 DEPARTURE……+100
TOTAL COOLING UNITS LAST SEASON TO DATE……..370 DEPARTURE…….+84
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….21 NW @ 4:17 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..22 @ 4:32 P.M.
DAVIS #2 ………………20 SW @ 12:49 P.M.
RMY #2 (Instantaneous)…..20 NW @ 4:53 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………………13 NW @ 4:54 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15 @ 4:37 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 WNW @ 4:47 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 NW @ 4:37 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……..7.6 NW [182 total miles]
VECTOR #2………………8.2
DAVIS #2……………….8.3 WNW
RMY #2…………………8.4 WNW
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……..0.00 DEPARTURE…..-0.12
TOTAL PRECIPITATION FOR THE MONTH…………..0.73 DEPARTURE…..-2.27
TOTAL PRECIPITATION FOR THE YEAR…………..21.12 DEPARTURE…..-9.11
PRELIMINARY CLIMATE SUMMARY FOR JULY 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
7/1 90/63/77/+6/0.00/704/77 33 S AERO N/A RMY 34
7/2 83/67/75/+4/0.25/228/25 25 WSW AERO N/A RMY 26 TSTM
7/3 84/65/75/+3/0.00/547/60 25 WNW AERO N/A RMY 26
7/4 83/60/72/0/0.00/838/92 25 WNW AERO N/A RMY 26
7/5 73/63/68/-4/0.12/027/03 37 SSW AERO N/A RMY 39
7/6 83/64/74/+2/T/701/77 37 SSW AERO N/A RMY 38
7/7 79/62/71/-1/0.00/645/71 27 SSW AERO N/A RMY 29
7/8 85/60/73/+1/0.00/472/52 24 WSW AERO N/A RMY 24
7/9 79/63/71/-2/0.00/843/93 21 N AERO N/A RMY 22
7/10 81/57/69/-4/0.00/851/94 22 SSE AERO N/A RMY 24
7/11 86/60/73/0/0.00/849/94 31 SSW AERO N/A RMY 33
7/12 86/63/75/+2/T/713/79 38 SSW AERO N/A RMY 39
7/13 89/67/78/+5/0.00/820/91 22 WNW AERO N/A RMY 22
7/14 86/64/75/+2/0.14/675/75 26 WNW AERO N/A RMY 27
7/15 85/61/73/0/0.00/862/96 21 S AERO N/A RMY 22
7/16 84/63/74/+1/0.00/439/49 25 SSW AERO N/A RMY 26
7/17 89/65/77/+4/0.00/662/74 31 SSW AERO N/A RMY 33 TSTM
7/18 80/68/74/+1/0.22/009/01 35 SSW AERO N/A RMY 36
7/19 91/70/81/+8/T/714/80 37 WNW AERO N/A RMY 38
7/20 96/72/84/+11/0.00/801/90 23 WNW AERO N/A RMY 23
7/21 92/71/82/+9/0.00/693/78 39 SSW AERO N/A RMY 41
7/22 94/72/83/+10/0.00/834/94 25 W AERO N/A RMY 25
7/23 96/72/84/+11/0.00/850/96 22 W AERO N/A RMY 22
7/24 99/73/86/+13/0.00/830/94 39 SW AERO N/A RMY 41
7/25 88/74/81/+8/T/291/33 37 SW AERO N/A RMY 41
7/26 83/66/75/+2/0.00/…/.. 24 W AERO N/A RMY 25
7/27 86/61/74/+1/0.00/…/.. 21 NW AERO N/A RMY 20
7/28 The low since midnight is 67F, the daily normal low is 64F
DAILY RECORDS
07/24/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 99F,
PREVIOUS RECORD WAS 96F SET IN 1987.
07/24/2022: TIED RECORD HIGH MINIMUM OF 73F, ALSO SET IN 1952
07/25/2022: TIED RECORD HIGH MINIMUM OF 74F, ALSO SET IN 2001
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR JULY 28
HIGH 97F IN 1931
LOW 49F IN 1903
PRECIP 3.32 INS IN 1911
PEAK GUST 62 MPH SW IN 2006
RECORDS FOR JULY 29
HIGH 97F IN 1949
LOW 53F IN 1888,1914
PRECIP 1.53 INS IN 1901
PEAK GUST 40e MPH E IN 1941
TODAY’S REPORT PREPARED BY: Benjamin Turner/ Caleb Kohane
