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Wednesday, January 4, 2017

January 4, 2017

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

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY WEDNESDAY, JANUARY 4, 2017 ALL TIMES ARE IN EASTERN STANDARD TIME SLOW DRYING PROCESS TODAY AFTER YESTERDAY’S RAINSTORM The air has slowly been drying out today, with low clouds, fog, and drizzle this morning giving way to dry conditions this afternoon. Rain, which began early yesterday and came down heavy at times in the evening, totaled 1.17 ins. in the 24 hours ending at the 7:00 A.M. observation, for a storm total of 1.22 ins.  Winds were gusty as well, with a peak gust of 39mph from the ENE yesterday afternoon, at which time winds were averaging over 20mph.  The wind has shifted to the west and southwest today, aiding in the drying process.  Temperatures remain on the mild side, reaching a high of 43F by early afternoon and likely to go a little higher.  While the cloud ceiling has gradually lifted today, the sky has remained mostly cloudy with no sunshine observed through 1:00 P.M. It appears 2016 will go down as the 2nd warmest year on record here at the Observatory.  A list of our ten warmest years, along with preliminary statistics for December, are below. BLUE HILL OBSERVATORY WARMEST ANNUAL TEMPERATURE 1885-2016 (deg F) 1) 51.7 in 2012 2) 51.2 in 2016 3) 51.0 in 2010 4) 50.9 in 1999 5) 50.8 in 1998 6) 50.6 in 2006 7) 50.5 in 1953 8) 50.4 in 2011 9) 50.3 in 1990, 1991 PRELIMINARY STATS FOR DECEMBER 2016 TEMPERATURE, Deg. F Avg. Max. 39.5 [+0.4] Avg. Min. 25.3 [+1.7] Mean      32.4 [+1.1] 24-hour corrected mean: 32.1 Max. for month: 56F on 27th Min. for month:  1F on 16th HEATING DEGREE DAYS Total heating units: 1002 [-41] Total for the season: 2032 [-273] Total for last season: 1656 PRECIPITATION, Inches Total: 2.83 [-2.06] Greatest in 24 hrs: 0.87 in. on 29th-30th SNOWFALL, Inches Total: 7.8 [-5.6] Greatest in 24 hrs: 4.3 in. on 17th WIND, mph Avg. uncorrected wind speed: 13.4 Avg. corrected wind speed: 13.7 Prevailing wind direction: W at 19% Peak gust and direction: 51 SW on 27th SUNSHINE: Campbell-Stokes card minutes: 8604 mins. of possible 16470 mins. or 52% Astronomical total minutes: 8881 mins. of possible 16991 mins. or 52% Today’s Observations: 7 A.M. Weather: Light drizzle, broken stratus fractus, overcast stratus, lower stratus fractus drifting below summit, higher clouds visible distant SW-NW, conditions variable Temperature: 35F; Dew Point: 35F; Wind: W at 10 kts Sea-level pressure: 29.39 ins. Hg, rising then more rapidly Visibility: 10 miles, except 5 miles ENE-SE, 30 miles SW-NW 6-hr Max temp: 43F 6-hr Min temp: 35F 24-hr precip: 1.17 ins. BHO SA 1155 E2 BKN 10 OVC 10L- 952/35/35/2710/939/ LWR STFRA DRFTG BLO SMT HIER CLOUDS VSBL DSNT SW-NW CONDTNS VRBL PCPN VRY LGT VSBY ENE-SE 5 SW-NW 30/ 8/7// 53016 ASOS 60004 MANUAL 70117 ASOS 70123 10043 20035 10 A.M. Weather: Broken stratocumulus, overcast stratus Temperature: 39F; Dew Point: 38F; Wind: SW at 10 kts Sea-level pressure: 29.44 ins. Hg, rising then more rapidly Visibility: 35 miles 3-hr precip: Trace BHO SA 1455 E5 BKN 10 OVC 35 969/39/38/2310/944/ 8/6// 53017 MANUAL 6000/ 1 P.M. Weather: Scattered stratus/stratus fractus, broken altocumulus, broken cirrus Temperature: 43F; Dew Point: 39F; Wind: SW at 9 kts, Wind: Direction variable SSW-W Sea-level pressure: 29.38 ins. Hg, rising then falling Visibility: 75 miles, except 40 miles SW-WNW 6-hr Max temp: 43F 6-hr Min temp: 35F 6-hr precip: Trace BHO SA 1755 15 SCT E75 BKN 250 BKN 75 949/43/39/2309/938/ VSBY SW-WNW 40 WND 20V26/ 8/731 58020 MANUAL 6000/ 10043 20035 SUMMARY FOR TUESDAY, JANUARY 3, 2017 TEMPERATURE (DEGREES F) MAX…..42   NORMAL…..35 MIN…..37   NORMAL…..18 MEAN….40   NORMAL…..26 DEPARTURE FROM 30-YEAR NORMAL…………………..+14 TOTAL DEPARTURE FOR THE MONTH…………………..+29 [+9.5 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY…………..25   DEPARTURE………-14 TOTAL HEATING UNITS FOR THE MONTH…………..86   DEPARTURE………-29 TOTAL HEATING UNITS FOR THE SEASON………..2118   DEPARTURE……..-302 TOTAL HEATING UNITS LAST SEASON TO DATE……1752   DIFFERENCE…….+366 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY……………….39 ENE AT 3:45 P.M.* ASOS……………………43 E   AT 3:45 P.M. DAVIS…………………..37 ENE AT 3:45 P.M. RMY 34 FASTEST MILE FOR YESTERDAY…………………29 ENE AT 3:46 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE………………30 ENE AT 3:46 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE……………..26 ENE AT 3:46 P.M. AVERAGE WIND SPEED AND DIRECTION………….18.0 E ASOS………………….17.9 DAVIS…………………15.4 ENE [77 deg.] *Last of several occurrences PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….1.17  DEPARTURE……+1.02 ASOS…………..1.23 TOTAL PRECIPITATION FOR THE MONTH……….1.31  DEPARTURE……+0.87 ASOS…………..1.37 TOTAL PRECIPITATION FOR THE YEAR………..1.31  DEPARTURE……+0.87 ASOS…………..1.37 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0  DEPARTURE…….-0.6 TOTAL SNOWFALL FOR THE MONTH…………….0.0  DEPARTURE…….-1.7 TOTAL SNOWFALL FOR THE SEASON……………7.8  DEPARTURE…….-9.9 PRELIMINARY CLIMATE SUMMARY FOR DECEMBER-JANUARY CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST AERO: Aerovane wind recording system 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 M:    Missing data 12/1  55/39/47/+10/0.20/0.0/385/69          36 W   AERO 37 W   RMY 36 12/2  48/34/41/+5/0.00/0.0/535/96           32 W   AERO 32 W   RMY N/A 13/3  44/31/38/+2/0.00/0.0/445/80           37 WNW AERO 39 WNW RMY 40 12/4  39/27/33/-2/0.00/0.0/355/64           25 NW  AERO 25 NW  RMY N/A 12/5  36/27/32/-3/0.13/0.4/000/00           26 W   AERO 25 W   RMY 29 12/6  42/30/36/+1/0.00/0.0/392/71           22 W   AERO 21 W   RMY N/A 12/7  39/34/37/+3/0.10/0.0/000/00           21 E   AERO 21 E   RMY N/A 12/8  40/29/35/+1/0.00/0.0/033/06           30 W   AERO 31 W   RMY 33 12/9  35/21/28/-6/0.00/0.0/549/100          35 W   AERO 36 WNW RMY 34 12/10 27/17/22/-11/0.00/0.0/544/99          26 WNW AERO 27 WNW RMY 29 12/11 33/16/25/-8/0.06/0.4/411/75           17 SSW AERO 15 SW  RMY N/A 12/12 41/27/34/+1/0.35/0.9/038/07           29 ESE AERO 29 SE  RMY 30 12/13 41/30/36/+4/0.00/0.0/427/78           25 WSW AERO 25 W   RMY 27 12/14 40/26/33/+1/0.00/0.0/530/97           30 WNW AERO 31 WNW RMY N/A 12/15 29/13/21/-11/T/T/420/77               50 W   AERO 62 W   RMY 56 12/16 18/01/10/-21/0.00/0.0/485/89          39 WNW AERO 51 WNW RMY N/A 12/17 36/18/27/-4/0.60/4.3/000/00           25 SSW AERO 28 SSW RMY N/A 12/18 55/30/43/+12/0.05/0.0/000/00          47 WSW AERO 53 S   RMY 53 12/19 30/17/24/-6/0.00/0.0/273/50           26 WNW*AERO 28 NW  RMY 26 12/20 32/13/23/-7/0.00/0.0/359/66           28 SSE AERO 29 SSW RMY N/A 12/21 40/25/33/+3/0.00/0.0/354/65           28 SSE AERO 28 SSW RMY 30 12/22 38/29/34/+5/T/T/033/06                28 SSE AERO 29 S   RMY 30 12/23 44/29/37/+8/0.00/0.0/512/94           25 WNW AERO 25 WNW RMY N/A 12/24 41/34/38/+9/0.39/0.0/033/06           30 SSW AERO 31 SSW RMY 30 12/25 43/25/34/+6/0.00/0.0/545/100          35 NW  AERO 37 NW  RMY 36 12/26 46/20/33/+5/…./0.0/425/78           39 S   AERO 40 S   RMY N/A 12/27 56/35/46/+18/…./0.0/169/31          51 SW  AERO 55 SW  RMY N/A 12/28 40/29/35/+7/0.00/0.0/207/38           31 W   AERO 32 W   RMY 26 12/29 40/28/34/+7/0.87/1.8/000/00           38 NW  AERO 44 NW  RMY 42 TSTM 12/30 37/26/32/+5/0.00/0.0/323/59           46 W   AERO 55 WSW RMY 50 12/31 43/23/32/+5/…./0.0/099/18           46 SSW AERO 51 SSW RMY 50 1/1   41/29/35/+8/…./0.0/…/..           35 W   AERO 36 W   RMY 34 1/2   38/29/34/+7/…./0.0/…/..           21 E   AERO 20 E   RMY N/A 1/3   42/37/40/+14/…./0.0/000/00          39 ENE AERO 41 ENE RMY 34 1/4 Low temp since midnight is 35F; normal low is now 18F DAILY RECORDS FOR DECEMBER 2016 None. DAILY RECORDS FOR JANUARY 2017 None so far. DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JANUARY 4 HIGH 60F IN 2000 LOW -8F IN 1904, 1981 PRECIP 1.79 INS. IN 1982 SNOW 8.6 INS. 1923, 1941 PEAK GUST 84 MPH S IN 1982 RECORDS FOR JANUARY 5 HIGH 61F IN 2007 LOW -9F IN 1981 PRECIP 0.98 INS. IN 1993 SNOW 4.5 INS. IN 1891 PEAK GUST 70 MPH WNW IN 1959 TODAY’S REPORT PREPARED BY: Jonathan O’Brien
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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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