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Friday, October 25, 2024

October 25, 2024

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

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA FRIDAY, OCTOBER 25, 2024 ALL TIMES ARE IN EASTERN STANDARD TIME (EST) SUNRISE: 0610E SUNSET:  1646E SUNSHINE AND A RETURN TO MORE SEASONAL TEMPERATURES…. Today has featured a gorgeous sky with mostly altocumulus off the coast and some fair weather cirrus moving in during the early afternoon. From the observation deck it appears that we are just heading out of peak fall foliage, however, it is still quite a beautiful landscape. Temperatures dipped to 39.5F during the early morning hours, which was the first time we were in below 40 territory since last Thursday. The high pressure system has dominated our weather for quite some time, which is partially to blame for the lack of precipitation as well. The last four months have seen a deficit in our normal values for precipitation, with this month currently at -3.69 inches. While most people appreciate high and dry conditions, we desperately could use some rain! The wind was much more active during the overnight and early morning hours before a shift from the NNW to an easterly flow took over the area. The average speed for the day so far is around 9 mph, though the last few hours it has been around 5 mph. The current peak gust of 20 mph occurred just before 3am. Visibility has been holding steady between 60-70 miles today thanks in part to a dramatic drop in the dew points from yesterday. The maximum temperature so far today is 59F, which is 1 degree above the normal high of 58F. The minimum temperature since midnight is 47F, which is 6 degrees above the normal low of 41F. ————————————————————– Today’s Observations: 7 A.M. Weather: Clear, few altocumulus distant NE-E Temperature: 41F; Dew Point: 36F; Relative Humidity: 79% Wind: NNW @ 10 kts Sea-level pressure: 1019.9 mb; 30.12 in. Hg: rising, then more slowly Visibility: 70 miles 6-hr Max temp: 47F 6-hr Min temp: 40F 24-hr Precip:  0.00 inches BHO SA 1155 CLR 70 199/41/36/3410/012/ FEW AC DSNT NE-E/ 8/050 51013 10047 20040 10 A.M. Weather: Clear, few altocumulus distant NE-E-SE Temperature: 54F; Dew Point: 34F; Relative Humidity: 47% Wind: NE @ 7 kts Sea-level pressure: 1020.4 mb; 30.13 in. Hg: rising, then falling Visibility: 60 miles 3-hr Precip: 0.00 inches BHO SA 1455 CLR 60 204/54/34/0607/013/ FEW AC DSNT NE-E-SE/ 8/050 50005 1 P.M. Weather: Clear, few altocumulus distant NE-E-SE, few altocumulus W, few cirrus all quadrants Temperature: 58F; Dew Point: 35F; Relative Humidity: 42% Wind: SW @ 4 kts, wind light Sea-level pressure: 1018.0 mb; 30.06 in. Hg: falling unsteadily Visibility: 60 miles 6-hr Max temp: 58F 6-hr Min temp: 41F 6-hr Precip: 0.00 inches BHO SA 1755 CLR 60 180/58/35/2304/006/ FEW AC DSNT NE-E-SE FEW AC W FEW CI ALQDS WND LGT/ 8/051 57024 10058 20041 ————————————————————– SUMMARY FOR THURSDAY, OCTOBER 24, 2024 TEMPERATURE (DEGREES F) MAX…….70  NORMAL…..58 MIN…….47  NORMAL…..41 MEAN……59  NORMAL…..50 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………+9 TOTAL DEPARTURE FOR THE MONTH……………………..+62 [+2.4 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025) TOTAL HEATING UNITS FOR YESTERDAY…………….6  DEPARTURE…….-10 TOTAL HEATING UNITS FOR THE MONTH…………..211  DEPARTURE…….-65 TOTAL HEATING UNITS FOR THE SEASON………….281  DEPARTURE……-113 TOTAL HEATING UNITS LAST SEASON TO DATE……..293  DEPARTURE…….-12 COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024) TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE………0 TOTAL COOLING UNITS FOR THE MONTH…………….4  DEPARTURE……..-3 TOTAL COOLING UNITS FOR THE SEASON………….761  DEPARTURE…….+84 TOTAL COOLING UNITS LAST SEASON TO DATE……..704  DEPARTURE…….+57 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)………..26 NNW  @   01:59 P.M. VECTOR #1 (1-Sec)……….26 NNW  @   01:59 P.M. VECTOR #2 (1-Sec)……….27 NNW  @   02:05 P.M. DAVIS #1……………….24 NNW  @   02:07 P.M. DAVIS #2 ………………23 NNE  @   10:07 A.M. RMY #1 (Instantaneous)…..26 NNW  @   02:07 P.M. RMY #2 (Instantaneous)…..26 NNW  @   02:05 P.M. MERLIN…………………23 NNW RICHARDS (C5C) (Inst)…..OTS FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL………………16 NNW  @   02:06 P.M. MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..17      @   02:06 P.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18      @   02:06 P.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 NNW  @   02:07 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………18 N    @   02:06 P.M. MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 NNW  @   01:45 P.M. MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..18 NNW  @   02:06 P.M. MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS AVERAGE WIND SPEED AND DIRECTION: CONTACTING/OFFICIAL……11.0 NNW [264 total miles] VECTOR #1…………….11.0 VECTOR #2…………….11.2 DAVIS #1……………..11.0 NNW DAVIS #2……………..11.1 NNW RMY #1……………….10.8 NNW RMY #2……………….11.2 NW RICHARDS (C5C)………….OTS PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.18 TOTAL PRECIPITATION FOR THE MONTH…………..0.53 DEPARTURE…..-3.69 TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.57 DEPARTURE…..+0.68 ————————————————————– PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 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 10/1   66/55/61/+3/T/134/19               28 ENE VEC1 28 ENE RMY 29 10/2   66/52/59/+1/T/252/36               21 ENE VEC1 20 ENE RMY 20 10/3   72/52/62/+5/0.00/592/85            23 S   VEC1 23 S   RMY 23 10/4   74/54/64/+7/0.00/452/65            23 SW  VEC1 22 SW  RMY 22 10/5   72/52/62/+5/T/457/66               24 NNW VEC1 23 NNW RMY 24 10/6   65/47/56/0/0.00/655/95             20 SE  VEC1 19 SE  RMY 18 10/7   60/51/56/0/0.27/021/03             29 SSE VEC1 29 SSE RMY 31 10/8   64/45/55/0/0.00/663/97             21 NW  VEC1 21 NW  RMY 21 10/9   64/46/55/0/T/639/94                24 W   VEC1 23 WNW RMY 23 10/10  60/42/51/-4/0.00/616/91            36 NW  VEC1 36 NW  RMY 38 10/11  67/40/54/0/0.00/635/94             28 WSW VEC1 27 WSW RMY 27 10/12  71/48/60/+6/0.00/652/97            44 NW  VEC1 43 NW  RMY 45 10/13  50/44/47/-7/0.20/007/01            32 ENE VEC1 32 ENE RMY 30 10/14  51/38/45/-8/0.06/000/00            35 NW  VEC1 34 WNW RMY 36 10/15  55/35/45/-8/0.00/617/93            31 W   VEC1 30 WNW RMY 31 10/16  56/38/47/-5/0.00/615/93            32 NW  VEC1 31 NW  RMY 32 10/17  54/35/45/-7/0.00/421/64            22 NE  VEC1 22 NE  RMY 20 10/18  59/40/50/-2/0.00/656/100           28 NNE VEC1 28 NE  RMY 27 10/19  72/46/59/+8/0.00/653/100           20 WSW VEC1 19 WSW RMY 19 10/20  76/47/62/+11/0.00/650/100          21 WSW VEC1 22 WSW RMY 23 10/21  82/52/67/+16/0.00/628/97           25 WNW VEC1 25 W   RMY 26 10/22  74/58/66/+16/0.00/632/98           18 WNW VEC1 17 WNW RMY 17 10/23  78/53/66/+16/0.00/571/89           35 SSW VEC1 35 SSW RMY 36 10/24  70/47/59/+9/T/…/..               26 NNW VEC1 26 NNW RMY 26 10/25  The low since midnight is 40F, the daily normal low is 41F. ————————————————————– OCTOBER DAILY RECORDS TO DATE 10/21 RECORD HIGH TEMPERATURE OF 82F, OLD RECORD WAS 79F IN 1979 ————————————————————– DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated) RECORDS FOR OCTOBER 25 HIGH 81F IN 1963 LOW 26F IN 1922,1939 PRECIP 2.45 INCHES IN 2005 SNOWFALL 1.2 INCHES IN 1960 PEAK GUST 72 MPH ESE IN 1980 RECORDS FOR OCTOBER 26 HIGH 80F IN 1963 LOW 24F IN 1921,1933 PRECIP 2.23 INCHES IN 2021 SNOW 3.0 INCHES IN 1962 WIND 59 MPH SSE IN 1967 TODAY’S REPORT PREPARED BY: Amanda Joly
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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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