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Monday, September 30, 2024

September 30, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, SEPTEMBER 30, 2024 ALL TIMES ARE…

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, SEPTEMBER 30, 2024 ALL TIMES ARE IN EASTERN STANDARD TIME (EST) SUNRISE: 0541E SUNSET:  1726E SUNSHINE THROUGH THIN HIGH CLOUDS WITH ABOVE NORMAL TEMPERATURES…. As we close out the month of September, today has featured mainly sunny skies with only some high thin cirrus clouds along with dots of stratocumulus and cumulus clouds around. The clouds haven’t been enough to inhibit the sunshine that much today. So all in all, it’s been quite a nice day. Today will finish on the dry side, as such, the total rainfall for the month is 1.83″, which is 2.23″ below normal for the month. So despite the decent amount of rainfall that fell late last week, we will be finishing the month on quite a dry note. Temperatures today have warmed into the lower 70s, which is now a few degrees above normal (the normal high for today’s date is 67F). The dew point briefly pushed near 60 degrees mid to late this morning, but has since dropped back into the mid 50s this afternoon. So after a bit of a humid feel earlier, it has become quite pleasant this afternoon. The wind has generally been on the light side today, even going calm for a time this morning. The average speed for the day so far is only around 5mph. The peak gust for the day so far is 16mph, which occurred just before noon-time. Visibility has been somewhat limited today, this morning by thin fog, and this afternoon by haziness. The view has been 40-50 miles all day. The maximum temperature so far today is 71F, which is 4 degrees above the normal high of 67F. The minimum temperature since midnight is 54F, which is 4 degrees above the normal low of 50F. ————————————————————– Today’s Observations: 7 A.M. Weather: Thin broken cirrus, few cumulus offshore distant NE-SE-SSW, few altocumulus distant WNW-NNE, patchy ground fog all quadrants Temperature: 58F; Dew Point: 57F; Relative Humidity: 96% Wind: Calm Sea-level pressure: 1018.7 mb; 30.08 in. Hg: rising unsteadily Visibility: 50 miles 6-hr Max temp: 58F 6-hr Min temp: 54F 24-hr Precip:  0.00 inches BHO SA 1155 E250 -BKN 50 187/58/57/0000/008/ FEW CU OFFSHR DSNT NE-SE-SSW FEW AC DSNT WNW-NNE PTCHY GF ALQDS WND CALM/ 8/251 52014 10058 20054 10 A.M. Weather: Thin broken cirrus, few stratocumulus all quadrants, thin smoke layer along horizon NW-NE Temperature: 66F; Dew Point: 60F; Relative Humidity: 79% Wind: ENE @ 4 kts, wind light Sea-level pressure: 1019.6 mb; 30.11 in. Hg: rising, then more slowly Visibility: 40 miles, hazy 3-hr Precip: 0.00 inches BHO SA 1455 E250 -BKN 40 196/66/60/0604/011/ FEW SC ALQDS THN K LYR ALG HZN NW-NE HAZY WND LGT/ 8/501 51009 1 P.M. Weather: Thin broken cirrus, few stratocumulus distant E-ESE, few cumulus distant SW-NW-NNE Temperature: 70F; Dew Point: 55F; Relative Humidity: 59% Wind: ENE @ 7G13 kts Sea-level pressure: 1018.5 mb; 30.08 in. Hg: falling, then more rapidly Visibility: 50 miles 6-hr Max temp: 71F 6-hr Min temp: 58F 6-hr Precip: 0.00 inches BHO SA 1755 E250 -BKN 50 185/70/55/0607G13/008/ FEW SC DSNT E-ESE FEW CU DSNT SW-NW-NNE/ 8/801 58011 10071 20058 ————————————————————– SUMMARY FOR SUNDAY, SEPTEMBER 29, 2024 TEMPERATURE (DEGREES F) MAX…….64  NORMAL…..68 MIN…….55  NORMAL…..51 MEAN……60  NORMAL…..59 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+1 TOTAL DEPARTURE FOR THE MONTH…………………….+24 [+0.6 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025) TOTAL HEATING UNITS FOR YESTERDAY…………….5  DEPARTURE……..-2 TOTAL HEATING UNITS FOR THE MONTH……………57  DEPARTURE…….-36 TOTAL HEATING UNITS FOR THE SEASON…………..68  DEPARTURE…….-43 TOTAL HEATING UNITS LAST SEASON TO DATE………89  DEPARTURE…….-21 COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024) TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE……..-1 TOTAL COOLING UNITS FOR THE MONTH……………63  DEPARTURE…….-11 TOTAL COOLING UNITS FOR THE SEASON………….757  DEPARTURE…….+88 TOTAL COOLING UNITS LAST SEASON TO DATE……..689  DEPARTURE…….+68 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)……….E16 ENE  @   07:04 A.M. VECTOR #1 (1-Sec)……….15 NE   @   07:06 A.M. VECTOR #2 (1-Sec)……….15 NE   @   09:00 A.M. DAVIS #1……………….15 ENE  @   07:03 A.M. DAVIS #2 ………………15 ENE  @   09:00 A.M. RMY #1 (Instantaneous)…..15 ENE  @   09:00 A.M. RMY #2 (Instantaneous)…..15 NE   @   09:00 A.M. MERLIN…………………14 ENE RICHARDS (C5C) (Inst)…..OTS FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL……………….9 NE   @   05:39 A.M. MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..10      @   11:41 A.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..10      @   05:03 A.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………10 NE   @   11:41 A.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………10 ENE  @   04:55 A.M. MAXIMUM 2-MINUTE RMY #1 AVERAGE………………9 NE   @   11:41 A.M. MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..10 NE   @   04:54 A.M. MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS AVERAGE WIND SPEED AND DIRECTION: CONTACTING/OFFICIAL……..5.2 ENE [124 total miles] VECTOR #1………………5.6 VECTOR #2………………6.0 DAVIS #1……………….5.6 E DAVIS #2……………….5.4 E RMY #1…………………5.7 E RMY #2…………………5.9 E RICHARDS (C5C)………….OTS PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.15 TOTAL PRECIPITATION FOR THE MONTH…………..1.83 DEPARTURE…..-2.07 TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.04 DEPARTURE…..+4.53 ————————————————————– 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/058/08                28 ENE VEC1 27 NE  RMY 27 9/24  61/51/56/-5/0.01/087/12             25 ENE VEC1 22 ENE RMY 24 9/25  65/56/61/0/0.00/029/04              18 E   VEC1 18 ESE RMY 18 9/26  67/56/62/+2/0.42/000/00             26 S   VEC1 26 S   RMY 29 9/27  77/60/69/+9/0.00/450/63             17 W   VEC1 17 W   RMY 15 9/28  72/57/65/+6/0.00/441/62             20 E   VEC1 20 E   RMY 21 9/29  64/55/60/1/0.00/014/02              16 ENE VEC1 15 NE  RMY 15 9/30  The low since midnight is 54F, the daily normal low is 50F. ————————————————————– 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 30 HIGH 84F IN 1986 LOW 31F IN 1992 PRECIP 2.44 INCHES IN 2015 PEAK GUST 71 MPH S IN 2020 RECORDS FOR OCTOBER 1 HIGH 85F IN 1927 LOW 30F IN 1992 PRECIP 1.63 INCHES IN 2014 PEAK GUST 68e MPH SSE IN 1977 TODAY’S REPORT PREPARED BY: Matt Douglas
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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
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