Sign In Become a Member
Donate
Daily Discussions

Wednesday, September 25, 2024

September 25, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, SEPTEMBER 25, 2024 ALL TIMES ARE…

Agreement required — click “Accept & Continue” below to review and accept the Data Use & Privacy Policy

Access to this content requires acceptance of our Data Use & Privacy Policy.

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

WEDNESDAY, SEPTEMBER 25, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0535E
SUNSET:  1735E

OVERCAST SKIES DOMINATE YET AGAIN, TEMPERATURES CONTINUE BELOW NORMAL….

Clouds are once again in charge of the sky today, the one difference,
we’ve had no form of rain so far today, so it’s been a dry day at
least. We’ve seen a few very brief peeks of sun here and there, but
nothing much to get too excited about.

Temperatures are once again below normal today with readings reaching
the low to mid 60s. A touch warmer than yesterday at least. The normal
high for today’s date is 69F.

The wind is lighter today than it’s been the past few days. The
average speed for the day so far is around 8mph and is still mainly
out of an easterly direction. The peak gust for the day so far is
18mph, which occurred before 1:30am this morning, and again right at
1pm.

Visibility has been holding at around 30-35 miles all day today.

The maximum temperature so far today is 65F, which is 4 degrees below
the normal high of 69F. The minimum temperature since midnight is 56F,
which is 4 degrees above the normal low of 52F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Overcast stratocumulus, few breaks in overcast distant SW-WSW,
few lower stratus fractus distant all quadrants
Temperature: 58F; Dew Point: 52F; Relative Humidity: 81%
Wind: E @ 8 kts
Sea-level pressure: 1024.5 mb; 30.25 in. Hg: rising, then more slowly
Visibility: 30 miles
6-hr Max temp: 58F
6-hr Min temp: 56F
24-hr Precip:  0.01 inches
BHO SA 1155 E37 OVC 30 245/58/52/1008/025/ FEW BINOVC DSNT SW-WSW
FEW LWR STFRA DSNT ALQDS/ 8/5// 51012 70001 10058 20056

10 A.M.
Weather: Overcast stratocumulus, few breaks in overcast WNW and
distant NNE-SE, higher clouds visible WNW and distant NNE-SE
Temperature: 61F; Dew Point: 53F; Relative Humidity: 73%
Wind: ESE @ 5 kts, wind light
Sea-level pressure: 1024.9 mb; 30.27 in. Hg: rising, then falling
Visibility: 30 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 E33 OVC 30 249/61/53/1105/027/ FEW BINOVC WNW AND DSNT
NNE-SE HIER CLDS VSBL WNW AND DSNT NNE-SE HAZY WND LGT/ 8/5// 50004

1 P.M.
Weather: Broken stratocumulus, overcast altostratus, few breaks in
overcast distant NNE-E, few lower stratus fractus all quadrants
Temperature: 63F; Dew Point: 53F; Relative Humidity: 68%
Wind: ESE @ 8 kts
Sea-level pressure: 1024.2 mb; 30.24 in. Hg: falling, then more rapidly
Visibility: 35 miles, hazy
6-hr Max temp: 65F
6-hr Min temp: 58F
6-hr Precip: 0.00 inches
BHO SA 1755 E33 BKN 85 OVC 35 242/63/53/1108/024/ FEW BINOVC DSNT
NNE-E FEW LWR STFRA ALQDS HIER CLDS VSBL DSNT NNE-E HAZY/ 8/52/
58007 10065 20058

————————————————————–

SUMMARY FOR TUESDAY, SEPTEMBER 24, 2024

TEMPERATURE (DEGREES F)
MAX…….61  NORMAL…..70
MIN…….51  NORMAL…..53
MEAN……56  NORMAL…..61

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..-5
TOTAL DEPARTURE FOR THE MONTH……………………..+6 [+0.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….9  DEPARTURE……..+4
TOTAL HEATING UNITS FOR THE MONTH……………45  DEPARTURE…….-17
TOTAL HEATING UNITS FOR THE SEASON…………..56  DEPARTURE…….-24
TOTAL HEATING UNITS LAST SEASON TO DATE………42  DEPARTURE…….+14

COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE MONTH……………59  DEPARTURE…….-10
TOTAL COOLING UNITS FOR THE SEASON………….753  DEPARTURE…….+88
TOTAL COOLING UNITS LAST SEASON TO DATE……..689  DEPARTURE…….+64

PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated

F420C (Official)……….E25 ENE  @   04:45 P.M.
VECTOR #1 (1-Sec)……….22 ENE  @   01:56 P.M.
VECTOR #2 (1-Sec)……….24 ENE  @   12:19 P.M.
DAVIS #1……………….23 E    @   10:22 A.M.
DAVIS #2 ………………23 ENE  @   12:18 P.M.
RMY #1 (Instantaneous)…..24 ENE  @   03:37 P.M.
RMY #2 (Instantaneous)…..25 ENE  @   12:18 P.M.
MERLIN…………………22 E
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………17 ENE  @   04:50 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..15      @   10:57 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17      @   03:38 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 E    @   04:12 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………18 E    @   03:38 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 ENE  @   04:11 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 ENE  @   03:38 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….10.0 ENE [239 total miles] VECTOR #1………………9.6
VECTOR #2……………..10.6
DAVIS #1………………10.5 ENE
DAVIS #2………………10.4 ENE
RMY #1…………………9.9 ENE
RMY #2………………..10.4 NE
RICHARDS (C5C)………….OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.01 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..1.41 DEPARTURE…..-1.74
TOTAL PRECIPITATION FOR THE YEAR (2024)…….42.62 DEPARTURE…..+4.86

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/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

9/1   82/67/75/+6/T/244/31                28 SSW VEC1 27 SW  RMY 28
9/2   79/56/68/-1/0.00/644/82             31 NNW VEC1 31 NNW RMY 32
9/3   74/49/62/-6/0.00/766/98             23 NW  VEC1 23 NNW RMY 23
9/4   80/56/68/0/0.00/732/94              18 ESE VEC1 19 SE  RMY 18
9/5   77/58/68/0/0.00/737/95              20 ESE VEC1 19 ESE RMY 19
9/6   73/58/66/-2/0.00/240/31             22 E   VEC1 21 ENE RMY 23
9/7   77/56/67/0/0.04/301/39              34 WNW VEC1 31 WNW RMY 33
9/8   70/50/60/-7/0.00/753/98             35 W   VEC1 35 W   RMY 34
9/9   75/51/63/-4/0.00/727/95             31 WNW VEC1 28 WNW RMY 30
9/10  78/56/67/+1/0.00/717/94             21 NW  VEC1 20 SW  RMY 21
9/11  78/53/66/0/0.00/714/94              20 S   VEC1 19 S   RMY 18
9/12  82/58/70/+4/0.00/711/94             20 S   VEC1 19 S   RMY 20
9/13  85/59/72/+7/0.00/595/79             21 SSW VEC1 20 SSW RMY 20
9/14  81/61/71/+6/0.00/691/92             21 ENE VEC1 20 ENE RMY 21
9/15  78/60/69/+4/0.00/598/80             23 SE  VEC1 23 SE  RMY 25
9/16  83/55/69/+5/0.00/700/94             22 SSW VEC1 21 SSW RMY 21
9/17  83/55/69/+5/0.00/453/61             16 SW  VEC1 14 S   RMY 15
9/18  77/60/69/+6/0.00/163/22             15 W   VEC1 14 W   RMY 14
9/19  69/60/65/+2/0.10/000/00             30 NE  VEC1 30 NE  RMY 31
9/20  64/58/61/-2/0.12/000/00             38 NE  VEC1 38 NE  RMY 40
9/21  58/55/57/-5/1.13/000/00             35 NNE VEC1 31 NNE RMY 31
9/22  63/54/59/-3/0.01/190/26             35 NE  VEC1 31 NE  RMY 34
9/23  62/52/57/-5/T/…/..                28 ENE VEC1 27 NE  RMY 27
9/24  61/51/56/-5/0.01/…/..             25 ENE VEC1 22 ENE RMY 24

9/25  The low since midnight is 56F, the daily normal low is 52F.

————————————————————–

SEPTEMBER DAILY RECORDS TO DATE

NONE.

————————————————————–

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

RECORDS FOR SEPTEMBER 25
HIGH 87F IN 1970
LOW 31F IN 1950
PRECIP 2.68 INCHES IN 1961
PEAK GUST 63 MPH SSW IN 1991

RECORDS FOR SEPTEMBER 26
HIGH 91F IN 2007
LOW 36F IN 1905,1922,1978
PRECIP 3.84 INCHES IN 1888
PEAK GUST 54e MPH S IN 1977

TODAY’S REPORT PREPARED BY: Matt Douglas

Please follow and like us:
error
fb-share-icon
Tweet
fb-share-icon
←
→
Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
Part I — Data Use Policy
§ 01

Ownership and Proprietary Rights

All observational records, compiled datasets, metadata, database structures, and related materials provided by the Blue Hill Observatory & Science Center are the exclusive property of the Blue Hill Observatory & Science Center. The Observatory has maintained continuous weather observations at the summit of Great Blue Hill since 1885, and the entirety of that record — its compilation, structure, curation, and organization — constitutes a proprietary database protected under applicable United States law, including copyright law and common law database protections.

All rights not expressly granted in this Policy are reserved by the Observatory. No access to or use of Observatory data shall be construed as a waiver of any rights or as a license to use data beyond the scope expressly stated herein.

§ 02

Governing Law and Jurisdiction

This Policy shall be governed by and construed in accordance with the laws of the Commonwealth of Massachusetts, without regard to its conflict of law provisions. For interactions with international users, this Policy shall apply to the maximum extent permitted by applicable local law.

Any dispute arising from or related to this Policy shall be subject to the exclusive jurisdiction of the state and federal courts located in Norfolk County, Massachusetts. By accessing Observatory data, all users consent to personal jurisdiction in Massachusetts and waive any objection to the venue or inconvenience of such forum.

§ 03

Permitted Uses

Observatory data are made available for the following limited, non-commercial purposes only:

  • Personal study and analysis
  • Educational classroom use
  • Student projects
  • Non-commercial academic research
  • Publication of analyses, figures, models, or conclusions derived from the data, subject to the attribution requirements of Section 4

All other uses require prior written authorization from the Observatory.

§ 04

Attribution Requirement

Any use of Observatory data in any published, presented, or publicly distributed work must include the following verbatim acknowledgment:

“Data provided by the Blue Hill Observatory & Science Center, Milton, Massachusetts. Continuous weather observations since 1885.”

Failure to include proper attribution is a material violation of this Policy.

§ 05

Prohibited Uses

Unless explicitly authorized in writing, Users may not:

  • Resell, license, sublicense, or commercially exploit Observatory data in any form
  • Redistribute the dataset in whole or in part to any third party
  • Publish the dataset for download by third parties
  • Host, mirror, or archive the dataset on any external website, repository, or storage service
  • Upload the dataset to any public or institutional data repository
  • Provide the data through APIs, automated services, or subscription platforms
  • Incorporate the data into any commercial product, software, application, or service
  • Use the data for AI or machine learning systems intended for commercial use or external distribution
  • Use the data to create derivative datasets that enable reconstruction of the underlying observations
§ 06

Commercial Licensing

Organizations seeking to use Observatory data for commercial purposes must obtain a license prior to any such use. Licensing inquiries: data@bluehill.org.

§ 07

Automated Access

Automated scraping, bulk harvesting, or systematic downloading of Observatory data is strictly prohibited without prior written authorization.

§ 08

Enforcement and Remedies

Violation of this Policy may result in immediate revocation of data access, pursuit of legal remedies available under United States law, and referral to applicable authorities. The Observatory reserves all rights to seek injunctive relief, damages, and attorneys’ fees in connection with any unauthorized use of its data.

Part II — Privacy Policy
§ 09–10

Scope & Information Collected

This section governs the collection, use, storage, and disclosure of personal information from visitors to the Blue Hill Observatory website and users of its data services. The Observatory may collect contact information (name, email, organization) when voluntarily submitted, usage data including IP addresses and pages visited, and data download records.

§ 11–12

How We Use Information & Retention

Information is used solely for: responding to inquiries and licensing requests; monitoring and enforcing compliance with this Policy; improving website performance; and communicating Observatory news to opted-in users. The Observatory does not sell, rent, or share personal information with third parties for marketing purposes. Data access records may be retained indefinitely for compliance and enforcement purposes.

§ 13

International Users and Data Transfers

The Observatory is located in the United States. International users acknowledge their information will be processed in the United States under U.S. law. Users requiring specific data processing agreements under non-US law must contact data@bluehill.org before accessing data.

§ 14–16

Cookies, Security & Children’s Privacy

The Observatory website may use cookies for analytics and functionality. By continuing to use the site, users consent to cookie use. The Observatory implements reasonable measures to protect personal information but cannot guarantee absolute security. Observatory data services are not directed at children under 13.

Part III — General Provisions
§ 17–20

Modifications, Severability, Entire Agreement & Contact

The Observatory reserves the right to modify this Policy at any time. Updated versions will be posted at bluehill.org. Continued use of Observatory data following any modification constitutes acceptance of the revised Policy. This Policy constitutes the entire agreement between the User and the Observatory. Questions and licensing inquiries: Blue Hill Observatory & Science Center, Milton, Massachusetts — data@bluehill.org

By accessing, downloading, or using any Blue Hill Observatory data or services, you acknowledge that you have read, understood, and agree to be bound by this Policy.
Effective January 1, 2025 · Blue Hill Observatory & Science Center · Milton, Massachusetts
↓ Scroll to read the full Policy — the agreement checkbox will unlock at the bottom