Sign In Become a Member
Daily Discussions

Friday, November 21, 2014

November 21, 2014

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, NOVEMBER…

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 DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, NOVEMBER 21, 2014 ALL TIMES ARE IN EASTERN STANDARD TIME A SECOND INSTALLMENT OF ARCTIC AIR ARRIVED OVERNIGHT INTO TODAY TEMPERATURES STRUGGLED TO REACH LOW 30’S WITH GUSTY WINDS WINDY WITH GUSTS FROM WNW 30 TO 35 MPH After a one day break yesterday from the unseasonably cold weather it was back to much colder and windy today.  During yesterday afternoon the thermometer touched 47 degrees but after a 23-degree low this morning the early afternoon readings today were in the low 30’s, barely breaking above freezing. We’re watching for ice formation on the nearby ponds but none is seen as yet. Today’s Observations: 7 A.M. Weather: Clear sky, cumulus/stratocumulus along and offshore to the distant NNE-ESE-SSW Temperature: 23F; Dew Point: 12F; Wind: W at 13 kts Sea-level pressure: 30.03 ins. Hg, rising Visibility: 35 miles, except 45 miles WNW, distant haze 6-hr max temp: 27F 6-hr min temp: 23F 24-hr precip: 0.00 inch BHO SA 1155 CLR 35 168/23/12/2713/003/ CU/SC ALG/OFFSHR DSNT NNE-SSW VSBY WNW 45 DSNT HZ/ 8/500 53020 10027 20023 10 A.M. Weather: Clear, cumulus/stratocumulus generated by cumulus distant W-N-ESE Temperature: 30F; Dew Point: 11F; Wind: WNW at 13G18 kts Sea-level pressure: 30.10 ins. Hg, falling then more quickly Visibility: 50 miles, light distant haze BHO SA 1455 CLR 50 192/30/11/2913G18/010/ CU/SC DSNT W-N-ESE ALG HRZN LGT DSNT HZ GST 23 KTS PST HR/ 8/400 51024 1 P.M. Weather: Scattered cumulus and stratocumulus generated by cumulus Temperature: 33F; Dew Point: 10F; Wind: WNW at 16G24 kts Sea-level pressure: 30.12 ins. Hg, rising slightly Visibility: 60 miles, light distant haze, virga distant WNW-NW 6-hr max temp: 6-hr min temp: 23F 6-hr precip: 0.00 ins. BHO SA 1755 55 SCT 60 200/33/10/3016G24/012/ CU/SCCG ALQDS VIRGA DSNT WNW-NW PK WND 2927/35/ 8/400 53008 10033 20023 SUMMARY FOR THURSDAY, NOVEMBER 20, 2014 TEMPERATURE (DEGREES F) MAX…..47   NORMAL…..49 MIN…..26   NORMAL…..32 MEAN….37   NORMAL…..40 8DEPARTURE FROM 30-YEAR NORMAL…………………….-3 TOTAL DEPARTURE FOR THE MONTH…………………….-35 [-2.0 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY…………..28  DEPARTURE………..+3 TOTAL HEATING UNITS FOR THE MONTH………….467  DEPARTURE……….+35 TOTAL HEATING UNITS FOR THE SEASON…………889  DEPARTURE………-106 TOTAL HEATING UNITS LAST SEASON TO DATE…….897  DIFFERENCE……… -8 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY………………35 WSW AT  2:43 P.M. ASOS…………………..39 WSW AT  2:43 P.M. DAVIS………………….37 SW  AT  2:43 P.M. RMY 41 FASTEST MILE FOR YESTERDAY………………..28 WSW AT  2:44 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE……………..28 WSW AT  2:44 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE…………….26 WSW AT  2:44 P.M. AVERAGE WIND SPEED AND DIRECTION…………14.8 SSW ASOS…………………13.9 DAVIS………………..13.2 WSW (240 degrees) * Last of several occurrences PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE…..-0.16 ASOS…………..0.00 TOTAL PRECIPITATION FOR THE MONTH……….3.70  DEPARTURE…..+0.55 ASOS…………..3.73 TOTAL PRECIPITATION FOR THE YEAR……….45.25  DEPARTURE…..-1.67 ASOS………….45.60 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0  DEPARTURE……-0.1 TOTAL SNOWFALL FOR THE MONTH…………….5.3  DEPARTURE……+4.4 TOTAL SNOWFALL FOR THE SEASON……………5.3  DEPARTURE……+4.1 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/SUN(MIN.)/SUN(%)/ PEAK GUST/RMY GUST RMY:  R.M. Young wind gust recording system TSTM: Thunderstorm day (thunder heard some time during day) ….: Data not yet available, records not finalized 11/1  45/36/41/-5/0.79/0.0/000/00              35 NNE RMY N/A 11/2  37/32/35/-11/0.29/1.8/000/00             46 NW  RMY 49 11/3  50/30/45/-6/0.00/0.0/584/95              39 WNW RMY 43 11/4  61/44/53/+8/0.00/0.0/208/34              28 SSW RMY 32 11/5  66/50/58/+13/0.00/0.0/006/01             29 SSW RMY N/A 11/6  52/45/49/+4/0.58/0.0/000/00              23 NE  RMY 24 11/7  46/34/40/-5/0.00/0.0/079/13              39 NW  RMY 42 11/8  47/30/39/-5/0.00/0.0/555/92              24 W   RMY 25 11/9  56/38/47/+3/0.00/0.0/204/34              23 SSW RMY N/A 11/10 58/40/49/+5/0.00/0.0/592/99              17 S   RMY 20 11/11 61/43/52/+9/0.00/0.0/358/60              22 S   RMY 25 11/12 59/40/50/+7/0.00/0.0/…/..              22 W   RMY 25 11/13 49/32/41/-2/0.08/T/…/..                21 NW  RMY N/A 11/14 41/27/34/-8/0.00/0.0/…/..              23 NW  RMY 27 11/15 37/24/31/-11/0.00/0.0/…/..             23 NW  RMY 23 11/16 39/26/33/-9/0.00/0.0/…/..              17 S   RMY 19 11/17 52/34/43/+2/1.67/0.0/000/00              29 ENE RMY 31 11/18 44/23/34/-7/0.00/0.0/…/..              33 W   RMY 39 11/19 35/19/27/-14/0.00/0.0/…/..             31 WSW RMY N/A 11/20 47/26/37/-3/0.00/0.0/…/..              35 WSW RMY 41 11/21 morning low temp: 23F since midnight; normal low now 32F DAILY RECORDS FOR NOVEMBER 2014: 11/2  – A NEW RECORD DAILY SNOWFALL: 1.8 INCHES; surpasses the previous record of 0.2 ins. in 1906, 1951 11/14 – DAILY SNOWFALL RECORD EQUALED: 3.5 INCHES; ties previous record on this date in 1997 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 21 HIGH 69 IN 1931 LOW 10 IN 1888 PRECIP 2.60 INCHES IN 1950 SNOWFALL 4.0 INS IN 1929 PEAK GUST 69 NW IN 1989 RECORDS FOR NOVEMBER 22 HIGH 70 IN 1931 LOW 12 IN 1987 PRECIP 1.78 INS IN 2005 SNOWFALL 9.0 INS IN 1971 PEAK GUST 70e SE IN 1945 TODAY’S REPORT PREPARED BY: Robert Skilling
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