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Saturday, June 15, 2019

June 15, 2019

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

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, JUNE 15, 2019 ALL TIMES ARE IN EASTERN STANDARD TIME MOSTLY SUNNY AND SEASONABLY WARM TODAY… Partial middle and high level clouds earlier this morning drifted away to leave a mostly sunny sky by early afternoon. The visibility has been very good near 70 miles all day with some light distant haze partly obscuring the most distant mountains. The air has dried from the rain on Thursday with the dew point holding in the upper 40s today and the relative humidity dropping to near 30%. The wind has picked up since sunrise with a peak gust to 29 kts, 33 mph, from the SSW at 14:33 PM EST. The high so far today is 79F, four degrees above the daily normal maximum of 75F, and the low since midnight is 54F, three degrees below the daily normal minimum of 57F. PRELIMINARY STATS FOR MAY 2019 TEMPERATURE, Deg. F Avg. Max. 63.5 [-2.8] Avg. Min. 46.0 [-1.8] Mean      54.8 [-2.2] 24-hour corrected mean: 54.4 Max. for month: 85F on the 26th Min. for month: 36F on the 12th HEATING DEGREE DAYS Total heating units:    318 [+50] Total for the season:  6219 [-84] Total for last season: 5847 COOLING DEGREE DAYS Total cooling units:   8 [-14] Total for the season:  8 [-16] Total for last season: 62 PRECIPITATION, Inches Total: 4.61 [+0.50] Greatest in 24 hrs: 1.24 ins. on the 13th-14th SNOWFALL, Inches Total: Trace [+/-0.0] Greatest in 24 hrs: Trace [12th] WIND, mph Avg. uncorrected wind speed: 10.5 Avg. corrected wind speed: 11.1 Prevailing wind direction: S at 13% Peak gust and direction: 47 NW on 24th SUNSHINE: Campbell-Stokes card minutes: 10362 minutes of possible 26226 or 40% Astronomical total minutes:   10733 minutes of possible 27166 or 40% Today’s Observations: 7 A.M. Weather: Scattered altocumulus (2 layers), thin scattered cirrus, few cirrocumulus overhead-NE Temperature: 62F; Dew Point: 49F; Wind: W at 10 kts Sea-level pressure: 30.11 ins. Hg, rising then more slowly Visibility: 70 miles, light distant haze 6-hr Max temp: 62F 6-hr Min temp: 54F 24-hr Precip: 0.00 ins. BHO SA 1155 120 SCT 150 SCT 250 -SCT 70 196/62/49/2610/011/ FEW CC OVHD-NE LGT DSNT HZ/ 8/031 51017 10062 20054 10 A.M. Weather: Scattered altocumulus, thin broken cirrus Temperature: 74F; Dew Point: 46F; Wind: SW at 12G18 kts Sea-level pressure: 30.08 ins. Hg, falling then more quickly Visibility: 65 miles, light distant haze 3-hr Precip: 0.00 ins. BHO SA 1455 150 SCT 250 –BKN 65 187/74/46/2312G18/008/ LGT DSNT HZ/ 8/071 58009 1 P.M. Weather: Thin scattered cirrus, few altocumulus all quadrants, few altocumulus lenticularis W-NW Temperature: 78F; Dew Point: 47F; Wind: SW at 13G19 kts Sea-level pressure: 30.01 ins. Hg, falling then more quickly Visibility: 70 miles 6-hr Max temp: 79F 6-hr Min temp: 62F 6-hr Precip: 0.00 ins. BHO SA 1755 250 –SCT 70 163/78/47/2213G19/001/ FEW AC ALQDS FEW ACSL W-NW PK WND 2226/34/ 8/041 58024 10079 20062 SUMMARY FOR FRIDAY, JUNE 14, 2019 TEMPERATURE (DEGREES F) MAX…..72   NORMAL…..75 MIN…..50   NORMAL…..57 MEAN….61   NORMAL…..66 DEPARTURE FROM 30-YEAR NORMAL………………….-5 TOTAL DEPARTURE FOR THE MONTH………………….+4 [+0.1 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY……………4   DEPARTURE………+1 TOTAL HEATING UNITS FOR THE MONTH…………..31   DEPARTURE……..-20 TOTAL HEATING UNITS FOR THE SEASON………..6250   DEPARTURE…….-104 TOTAL HEATING UNITS LAST SEASON TO DATE……5905   DIFFERENCE……+345 COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY……………0   DEPARTURE………-3 TOTAL COOLING UNITS FOR THE MONTH…………..21   DEPARTURE……..-12 TOTAL COOLING UNITS FOR THE SEASON………….29   DEPARTURE……..-28 TOTAL COOLING UNITS LAST SEASON TO DATE……..78   DEPARTURE……..-49 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY………………..38 W   AT  6:53 P.M. AERO…………………….39 W   AT  6:55 P.M.* ASOS…………………….38 W   AT  6:53 P.M. DAVIS……………………38 WSW AT  4:46 P.M.  RMY 38 FASTEST MILE FOR YESTERDAY………………….28 W   AT  4:47 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE……………….28 W   AT  4:48 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE………………29 WSW AT  5:36 P.M. AVERAGE WIND SPEED AND DIRECTION…………..15.1 W ASOS…………………..14.6 DAVIS………………….14.8 SW [229 deg.] * Last of several occurrences PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE…….-0.15 ASOS…………..0.00 TOTAL PRECIPITATION FOR THE MONTH……….2.24  DEPARTURE…….-0.04 ASOS…………..2.27 TOTAL PRECIPITATION FOR THE YEAR……….28.03  DEPARTURE…….+3.09 ASOS………….28.00 PRELIMINARY CLIMATE SUMMARY FOR MAY 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 05/01 57/40/49/-4/0.00/0.0/025/03           21 S   AERO 21 SSE  RMY 21 05/02 45/41/43/-10/0.02/0.0/000/00          21 NE  AERO 21 SSW  RMY 20 05/03 60/43/52/-1/…./0.0/000/00           23 S   AERO 23 S    RMY 22 05/04 54/46/50/-4/…./0.0/000/00           14 ENE AERO 14 ENE  RMY 17 05/05 52/44/48/-6/0.00/0.0/000/00           18 NE  AERO 20 NE   RMY N/A 05/06 58/44/51/-3/…./0.0/505/59           25 NE  AERO 26 ENE  RMY 24 05/07 72/41/57/+2/0.12/0.0/566/66           30 S   AERO 29 S    RMY 30 05/08 67/48/58/+3/0.00/0.0/758/88           20 NE  AERO 20 NE   RMY 19 05/09 60/43/52/-3/0.00/0.0/492/57           21 SE  AERO 21 E    RMY 22 05/10 61/46/54/-1/0.16/0.0/043/05           35 S   AERO 37 S    RMY 37 05/11 68/50/59/+3/…./0.0/763/88           26 NW  AERO M  M    RMY N/A 05/12 50/36/43/-13/0.68/T/000/00            30 ENE AERO M  M    RMY N/A 05/13 52/38/45/-11/…./0.0/113/13          35 E   AERO M  M    RMY 34 05/14 44/38/41/-16/…./0.0/000/00          26 NNE AERO M  M    RMY 25 05/15 58/40/49/-8/…./0.0/587/67           28 NW  AERO M  M    RMY 28 05/16 68/46/57/0/…./0.0/615/70            17 NW  AERO M  M    RMY 19 05/17 64/49/57/0/…./0.0/062/07            22 WNW AERO 21 WNW  RMY 25 05/18 72/49/61/+3/…./0.0/811/92           26 SSE AERO 25 SSE  RMY 29 05/19 69/50/60/+2/…./0.0/345/39           39 S   AERO 43 SSE  RMY 42 05/20 85/52/69/11/…./0.0/408/46           35 SW  AERO 40 SW   RMY 39 05/21 69/52/61/+2/0.00/0.0/843/95           40 NW  AERO 46 NW   RMY 45 05/22 68/49/59/0/0.00/0.0/862/97            32 NNW AERO 29 NW   RMY N/A 05/23 68/48/58/-1/…./0.0/080/09           36 SSW AERO 37 SSW  RMY 40 05/24 68/47/58/-1/…./0.0/000/00           47 NW  AERO 47 NW   RMY 51 05/25 75/47/61/+1/…./0.0/617/69           M  M   AERO 35 SSW  RMY 39 05/26 85/49/67/+7/…./0.0/645/72           40 W   AERO 38 W    RMY 39 05/27 76/57/67/+7/…./0.0/798/89           30 NE  AERO 22 NE   RMY 27 05/28 57/48/53/-8/…./0.0/009/01           26 E   AERO 22 ESE  RMY 25 05/29 51/45/48/-13/…./0.0/000/00          21 NNW AERO 21 NNW  RMY N/A 05/30 63/46/55/-6/…./0.0/000/00           23 S   AERO 23 S    RMY 25 05/31 72/54/63/2/…./0.0/786/87            28 N   AERO 23 N    RMY 26 PRELIMINARY CLIMATE SUMMARY FOR JUNE CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/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 06/01 71/54/63/+1/0.00/…/..               21 E   AERO 20 E   RMY 18 06/02 75/51/63/+1/…./…/..               23 S   AERO 21 S   RMY N/A 06/03 69/50/60/-2/…./…/..               41 W   AERO 39 W   RMY 43 06/04 70/45/58/-5/0.00/…/..               29 W   AERO 23 W   RMY N/A 06/05 81/57/69/+6/…./…/..               33 SSW AERO 33 SSW RMY N/A 06/06 75/64/70/+6/…./…/..               28 SSW AERO 28 SSW RMY N/A 06/07 80/59/70/+6/0.00/…/..               23 S   AERO 23 S   RMY 22 06/08 78/57/68/+4/0.00/…/..               23 ENE AERO 21 SW  RMY 21 06/09 78/55/67/+3/0.00/…/..               22 S   AERO 21 S   RMY 21 06/10 79/54/67/+2/…./…/..               26 SSE AERO 25 SSE RMY 33 06/11 73/58/66/+1/…./…/..               32 NW  AERO 30 NW  RMY 35 06/12 75/52/64/-1/…./…/..               25 SSW AERO 25 S   RMY 28 06/13 55/49/52/-13/…./…/..              36 NE  AERO 35 NE  RMY 35 06/14 72/50/61/-5/0.00/…/..               38 W   AERO 39 W   RMY 38 06/15 Low temp since midnight is 54F; normal low is 57F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JUNE 15 HIGH 94F IN 1988 LOW 42F IN 1959, 1978 PRECIP 2.04 INS IN 1903 PEAK GUST 52 MPH SW IN 1972 RECORDS FOR JUNE 16 HIGH 92F IN 1891, 1967 LOW 44F IN 1926 PRECIP 2.17 INS IN 1931 PEAK GUST 55 MPH W IN 1958 TODAY’S REPORT PREPARED BY: Mike Iacono
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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
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  • 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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