Saturday, March 9, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, MARCH 9, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0605E
SUNSET: 1744E
CLOUDS MAKE A RETURN TO BLUE HILL WITH COOL TEMPERATURES AND
LIGHT WIND…
This morning there were peaks of red around sunrise but by the
first observation the clouds filled in and we had overcast
conditions for the remainder of the day. Some fog moved in mid
morning and stuck around throughout the early afternoon.
Temperatures have been steady and slow to increase, mostly due to
the overcast conditions. We started the morning at 33F and have
climbed only a few degrees to 39F by the final observation. Dew
points have been in the low 30s through much of the day.
The wind has been overall light, with the wind changing from the NNE
yesterday to a more south easterly flow today. The average speed so
far for the day has only been around 9mph. Today’s current peak gust
of 22mph occurred just before noon time.
Visibility was about 40 miles in the morning but decreased to 30
miles by mid morning.
The maximum temperature so far today is 39F degrees, which is
3 degrees below the normal high of 42F. The minimum temperature
since midnight is 32F degrees, which is 7 degrees above the normal
low of 25F.
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Today’s Observations:
7 A.M.
Weather: Overcast stratus
Temperature: 33F; Dew Point: 31F; Relative Humidity: 94%
Wind: SE @ 8 kts
Sea-level pressure: 1026.1 mb; 30.30 in. Hg: falling unsteadily
Visibility: 40 miles
6-hr Max temp: 34F
6-hr Min temp: 32F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E12 OVC 40 261/33/31/1208/030/ 8/6// 57014 10034 20032
10 A.M.
Weather: Overcast stratus
Temperature: 34F; Dew Point: 32F; Relative Humidity: 92%
Wind: SE @ 7 kts
Sea-level pressure: 1025.4 mb; 30.28 in. Hg: rising, then falling
Visibility: 20 miles, thin fog
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E9 OVC 30 254/34/32/1407/028/ THN F ALQDS/ 8/6// 58007
1 P.M.
Weather: Overcast stratus
Temperature: 38F; Dew Point: 32F; Relative Humidity: 78%
Wind: SSE @ 6 kts, wind light
Sea-level pressure: 1023.2 mb; 30.22 in. Hg: falling, then slowly
Visibility: 30 miles, thin fog
6-hr Max temp: 39F
6-hr Min temp: 33F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E13 OVC 30 232/38/32/1506/022/ THN F ALQDS WND LGT/
8/6// 56022 10039 20033
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SUMMARY FOR FRIDAY, MARCH 8, 2024
TEMPERATURE (DEGREES F)
MAX…….45 NORMAL…..42
MIN…….32 NORMAL…..24
MEAN……39 NORMAL…..33
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………+6
TOTAL DEPARTURE FOR THE MONTH…………………..+68 [+8.3 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………26 DEPARTURE……..-6
TOTAL HEATING UNITS FOR THE MONTH…………..194 DEPARTURE…….-69
TOTAL HEATING UNITS FOR THE SEASON…………4082 DEPARTURE……-613
TOTAL HEATING UNITS LAST SEASON TO DATE…….3961 DEPARTURE……+121
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)……….E35 NNE @ 03:32 A.M.
VECTOR #1 (1-Sec)……….36 NNE @ 03:31 A.M.
VECTOR #2 (1-Sec)……….36 NNE @ 03:52 A.M.
DAVIS #1……………….31 NNW @ 02:57 A.M.
DAVIS #2 ………………32 NE @ 03:53 A.M.
RMY #1 (Instantaneous)…..38 NNE @ 03:31 A.M.
RMY #2 (Instantaneous)…..37 NNE @ 03:52 A.M.
MERLIN…………………26 NNE
RICHARDS (C5C) (Inst)……34 @ 03:31 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………21 N @ 02:40 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..21 @ 03:32 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22 @ 02:40 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………21 NNE @ 03:32 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 NNE @ 02:41 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..21 NNE @ 03:32 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 N @ 02:40 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………21 @ 03:32 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……11.8 NNE [284 total miles]
VECTOR #1…………….11.7
VECTOR #2…………….10.4
DAVIS #1……………..12.1 ENE
DAVIS #2……………..12.0 ENE
RMY #1……………….11.5 NE
RMY #2……………….11.8 NE
RICHARDS (C5C)………..12.0
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE MONTH…………..3.05 DEPARTURE…..+1.67
TOTAL PRECIPITATION FOR THE YEAR (2024)…….13.61 DEPARTURE…..+3.73
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE……-4.9
TOTAL SNOWFALL FOR THE SEASON (2023-2024)……26.1 DEPARTURE…..-30.7
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PRELIMINARY CLIMATE SUMMARY FOR MARCH CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
3/1 41/18/30/-1/0.00/0.0/649/96 30 NW VEC1 30 WNW RMY 33
3/2 50/32/41/+9/1.16/0.0/000/00 44 SSE VEC1 46 SE RMY 42
3/3 55/42/49/+17/0.24/0.0/130/19 32 SSE VEC1 33 SSE RMY 32
3/4 49/36/43/+11/0.01/0.0/116/17 24 ENE VEC1 22 ENE RMY 23
3/5 42/36/39/+7/0.14/0.0/000/00 21 E VEC1 21 E RMY 21
3/6 51/39/45/+12/0.44/0.0/000/00 28 NE VEC1 28 NE RMY 29
3/7 42/37/40/+7/1.06/0.0/000/00 44 NNE VEC1 44 NNE RMY 42
3/8 45/32/39/+6/0.00/0.0/…/.. 35 NNE VEC1 36 NNE RMY 38
3/9 The low since midnight is 32F, the daily normal low is 25F.
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MARCH DAILY RECORDS TO DATE
NONE…
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR MARCH 9
HIGH 75 IN 2016
LOW 1 IN 2007
PRECIP 2.67 INS. IN 1998
SNOWFALL 6.3 INS. IN 2001
PEAK GUST 102e MPH S IN 1942 [RECORD FOR MONTH]
RECORDS FOR MARCH 10
HIGH 69 IN 1977
LOW 2 IN 1984
PRECIP 2.00 INS. IN 1994
SNOWFALL 5.5 INS. IN 1918
PEAK GUST 80 MPH NW IN 1974
TODAY’S REPORT PREPARED BY: Amanda Joly
