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Thursday, October 31, 2024

October 31, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA THURSDAY, OCTOBER 31, 2024 ALL TIMES ARE…

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA THURSDAY, OCTOBER 31, 2024 ALL TIMES ARE IN EASTERN STANDARD TIME (EST) SUNRISE: 0617E SUNSET:  1638E MAINLY SUNNY WITH NEAR RECORD WARM TEMPERATURES ON THIS HALLOWEEN…. Other than cirrus clouds painting the sky, it has been a mainly sunny day after some early morning patchy fog across the low lying areas surrounding Blue Hill. Temperatures started the day on the warm side, missing the record high minimum for the day by only 2 degrees with a low of 57F. Of course it was only up from there with readings reaching the low 70s by late this morning, and getting into the mid 70s early this afternoon. The record high for today is 79F set in 1946, but it appears we’ll fall short of reaching this value today. Stay tuned! The dew point has been holding in the mid 50s, so it does feel a bit sticky, especially compared to earlier this week when dew point values were in the 20s and 30s. Winds have been fairly steady today, mainly out of the west-southwest averaging at around 13mph. The peak gust so far for the day is 24mph, which occurred way back at around 12:45am. Visibility has been somewhat limited today, first by thin fog early this morning, and then by general haziness for the balance of the day. The view improved from 20 miles early this morning to around 35-40 miles by early this afternoon. The maximum temperature so far today is 76F, which is 20 degrees above the normal high of 56F. The minimum temperature since midnight is 57F, which is 18 degrees above the normal low of 39F. As we all know, it’s been a rather dry month across the region. The month of October is currently ranking as 6th driest on record here at Blue Hill. Here is the list of rankings as compiled by our Chief Scientist Mike Iacono. BHO Lowest October Precipitation, inches (1885-2024): 1) 0.22 in 1924 2) 0.39 in 1994 3) 0.50 in 1946 4) 0.61 in 1935 5) 0.63 in 1897 6) 0.76 in 2024 7) 0.79 in 2001 8) 1.09 in 2013 ————————————————————– Today’s Observations: 7 A.M. Weather: Thin broken cirrus Temperature: 58F; Dew Point: 53F; Relative Humidity: 82% Wind: WSW @ 12 kts Sea-level pressure: 1019.6 mb; 30.11 in. Hg: rising, then steady Visibility: 20 miles, thin fog 6-hr Max temp: 58F 6-hr Min temp: 57F 24-hr Precip:  0.00 inches BHO SA 1155 E250 -BKN 20 196/58/53/2512/011/ PTCHY GF SSE-WNW THN F ALQDS/ 8/001 51001 10058 20057 10 A.M. Weather: Thin broken cirrus Temperature: 71F; Dew Point: 56F; Relative Humidity: 58% Wind: W @ 7 kts Sea-level pressure: 1019.6 mb; 30.11 in. Hg: rising, then falling Visibility: 30 miles, hazy 3-hr Precip: 0.00 inches BHO SA 1455 E250 -BKN 30 196/71/56/2607/011/ HAZY/ 8/001 50000 1 P.M. Weather: Broken altocumulus/castellanus, broken cirrus Temperature: 75F; Dew Point: 55F; Relative Humidity: 51% Wind: WSW @ 6 kts, wind light Sea-level pressure: 1017.8 mb; 30.06 in. Hg: falling, then more rapidly Visibility: 40 miles, hazy 6-hr Max temp: 75F 6-hr Min temp: 58F 6-hr Precip: 0.00 inches BHO SA 1755 E100 BKN 250 BKN 40 178/75/55/2406/006/ HAZY WND LGT/ 8/081 58018 10075 20058 ————————————————————– SUMMARY FOR WEDNESDAY, OCTOBER 30, 2024 TEMPERATURE (DEGREES F) MAX…….71  NORMAL…..56 MIN…….46  NORMAL…..39 MEAN……59  NORMAL…..48 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+11 TOTAL DEPARTURE FOR THE MONTH……………………..+69 [+2.1 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025) TOTAL HEATING UNITS FOR YESTERDAY…………….6  DEPARTURE…….-12 TOTAL HEATING UNITS FOR THE MONTH…………..303  DEPARTURE…….-73 TOTAL HEATING UNITS FOR THE SEASON………….373  DEPARTURE……-121 TOTAL HEATING UNITS LAST SEASON TO DATE……..327  DEPARTURE…….+46 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……..715  DEPARTURE…….+46 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)………..28 SSE  @   03:14 A.M. VECTOR #1 (1-Sec)……….31 SSE  @   03:14 A.M. VECTOR #2 (1-Sec)……….28 SSE  @   05:00 A.M. DAVIS #1……………….28 SSE  @   03:15 A.M. DAVIS #2 ………………30 S    @   04:27 A.M. RMY #1 (Instantaneous)…..28 SSE  @   05:02 A.M. RMY #2 (Instantaneous)…..28 SSE  @   05:02 A.M. MERLIN…………………26 SE RICHARDS (C5C) (Inst)…..OTS FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL………………20 SSE  @   03:20 A.M. MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..21      @   05:02 A.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..21      @   04:56 A.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………20 SSE  @   05:02 A.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………19 S    @   05:15 P.M. MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..20 SSE  @   05:02 A.M. MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 SSE  @   04:56 A.M. MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS AVERAGE WIND SPEED AND DIRECTION: CONTACTING/OFFICIAL……..12.2 SSW [293 total miles] VECTOR #1………………12.5 VECTOR #2………………12.8 DAVIS #1……………….12.0 S DAVIS #2……………….12.5 S RMY #1…………………12.1 S RMY #2…………………12.9 S RICHARDS (C5C)………….OTS PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.17 TOTAL PRECIPITATION FOR THE MONTH…………..0.76 DEPARTURE…..-4.55 TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.80 DEPARTURE…..-0.18 ————————————————————– 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/346/54               26 NNW VEC1 26 NNW RMY 26 10/25  61/40/51/+2/0.00/636/100           20 NNW VEC1 21 NNW RMY 20 10/26  64/43/54/+5/0.00/495/78            37 W   VEC1 39 W   RMY 41 10/27  53/36/45/-4/0.00/625/99            28 W   VEC1 29 WNW RMY 30 10/28  50/36/43/-5/0.00/560/89            20 NNW VEC1 21 NNW RMY 22 10/29  53/38/46/-2/0.01/157/25            24 SSE VEC1 25 SSE RMY 24 10/30  71/46/59/+11/0.22/249/40           28 SSE VEC1 31 SSE RMY 28 10/31 The low since midnight is 57F, the daily normal low is 39F. ————————————————————– 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 31 HIGH 79F IN 1946 LOW 22F IN 1904 PRECIP 3.74 INCHES IN 1991 SNOWFALL TRACE IN 1906 PEAK GUST 70e S IN 1945 RECORDS FOR NOVEMBER 1 HIGH 75 IN 2003 LOW 22 IN 1913,1923 PRECIP 2.37 INCHES IN 1988 SNOWFALL TRACE IN 1906,1951,2023 PEAK GUST 78 ESE IN 1997 TODAY’S REPORT PREPARED BY: Matt Douglas
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