Sign In Become a Member
Donate
Daily Discussions

Tuesday, September 24, 2019

September 24, 2019

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

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
TUESDAY, SEPTEMBER 24, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

COOLER AND MUCH LESS HUMID TODAY…

After yesterday’s hot and humid weather, a cold front moved
through overnight bringing with it showers and thunderstorms to
the area. Only 0.04″ of rain fell at the Observatory just after
midnight.

Today has transitioned into a top notch day. A mix of sun and
clouds has been the theme with lowering dew points. A westerly
breeze has only added to the cooler feel of the day.

The high so far today has been 75F, which is still 6 degrees
above the normal high of 69F. The low since midnight was 62F,
which is 10 degrees above our normal low of 52F.

Today’s Observations:

7 A.M.
Weather: Clear; few stratus fractus distant ESE-S, few moderate cumulus
distant W-N, altocumulus layer distant NE-SE-S, few altocumulus W-NW
Temperature: 63F; Dew Point: 61F; Wind: W at 10 kts, gusting to 18 kts
Sea-level pressure: 29.73 ins. Hg, rising, then more slowly
Visibility: 60 miles
6-hr Max temp: 66F
6-hr Min temp: 62F
24-hr Precip: 0.04 ins.
BHO SA 1155 CLR 60 069/63/61/2610G18/973/ FEW STFRA DSNT ESE-S
FEW MDT CU DSNT W-N AC LYR DSNT NE-SE-S FEW AC DSNT W-NW/
8/530 51006 70004 10066 20062

10 A.M.
Weather: Scattered cumulus, scattered cirrus; cumulonimbus distant WNW-NW
Temperature: 72F; Dew Point: 56F; Wind: W at 13 kts, gusting to 20 kts
Sea-level pressure: 29.73 ins. Hg, steady, then falling
Visibility: 60 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 30 SCT 200 SCT 60 067/72/56/2813G20/973/ CB DSNT
WNW-NW/ 8/904 58002

1 P.M.
Weather: Scattered cumulus, cumulonimbus distant N-NNE, few cirrus distant
W-NW and NE-E
Temperature: 74F; Dew Point: 54F; Wind: W at 9 kts
Sea-level pressure: 29.71 ins. Hg, falling, then steady
Visibility: 70 miles
6-hr Max temp: 75F
6-hr Min temp: 62F
6-hr Precip: 0.00 ins.
BHO SA 1755 40 SCT 70 060/74/54/2709/971/ CB DSNT N-NNE FEW CI
DSNT W-NW AND NE-E/ 8/901 55007 10075 20062

SUMMARY FOR MONDAY, SEPTEMBER 23, 2019

TEMPERATURE (DEGREES F)
MAX…..88   NORMAL…..69
MIN…..65   NORMAL…..52
MEAN….77   NORMAL…..60

DEPARTURE FROM 30-YEAR NORMAL…………………+17
TOTAL DEPARTURE FOR THE MONTH………………… +1 [-0.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON AUG TO JUL)
TOTAL HEATING UNITS FOR YESTERDAY……………0   DEPARTURE………-6
TOTAL HEATING UNITS FOR THE MONTH…………..64   DEPARTURE………-4
TOTAL HEATING UNITS FOR THE SEASON………….76   DEPARTURE……..-11
TOTAL HEATING UNITS LAST SEASON TO DATE……..44   DEPARTURE……..+32

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..12   DEPARTURE……..+11
TOTAL COOLING UNITS FOR THE MONTH…………..53   DEPARTURE………-1
TOTAL COOLING UNITS FOR THE SEASON…………672   DEPARTURE……..+81
TOTAL COOLING UNITS LAST SEASON TO DATE…….855   DEPARTURE…….-183

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..29 SSW AT  2:54 P.M.
AERO…………………….28 SSW AT  2:53 P.M.
ASOS…………………….30 SSW AT  2:54 P.M.
DAVIS……………………31 S   AT  2:50 P.M. RMY 29
FASTEST MILE FOR YESTERDAY………………….22 SSW AT  2:54 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….22 SSW AT  3:07 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………21 SSW AT  2:53 P.M.
AVERAGE WIND SPEED AND DIRECTION…………….14.6 SSW
ASOS…………………….14.8
DAVIS……………………13.8 SSW [212 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.04  DEPARTURE……-0.11
ASOS…………..0.03
TOTAL PRECIPITATION FOR THE MONTH……….1.02  DEPARTURE……-2.00
ASOS…………..0.98
TOTAL PRECIPITATION FOR THE YEAR……….38.17  DEPARTURE……+0.12
ASOS………….38.02

PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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

9/01  73/56/65/-3/0.00/…/..                21 ENE AERO 14 ENE RMY 18
9/02  75/57/66/-2/0.37/…/..                39 W   AERO 41 W   RMY 41
9/03  77/61/69/+2/0.00/…/..                18 S   AERO 16 S   RMY N/A
9/04  83/61/72/+5/0.00/…/..                30 SW  AERO 28 SW  RMY 30
9/05  68/54/61/-6/0.00/…/..                23 NW  AERO 17 NW  RMY N/A
9/06  65/56/61/-6/0.03/…/..                37 ENE AERO 36 ENE RMY 36
9/07  70/51/61/-5/0.27/…/..                37 N   AERO 37 N   RMY N/A
9/08  73/53/63/-3/0.00/…/..                25 W   AERO 21 W   RMY N/A
9/09  71/54/63/-3/0.00/…/..                17 SE  AERO 16 SE  RMY 16
9/10  73/57/65/0/0.00/…/..                 25 S   AERO 25 S   RMY N/A
9/11  83/63/73/+8/0.00/…/..                31 SW  AERO 32 SW  RMY N/A
9/12  70/52/61/-4/0.11/…/..                29 ENE AERO 28 ENE RMY 28
9/13  65/49/57/-7/0.00/…/..                29 ENE AERO 27 ENE RMY 27
9/14  69/49/59/-5/0.19/…/..                36 S   AERO 37 S   RMY 37
9/15  78/62/70/+6/0.00/…/..                24 W   AERO 23 W   RMY 22
9/16  72/54/63/0/0.00/…/..                 25 WNW AERO 23 WNW RMY 25
9/17  67/49/58/-5/0.00/…/..                23 NW  AERO 23 N   RMY N/A
9/18  61/49/55/-7/0.00/…/..                26 NE  AERO 25 NE  RMY 25
9/19  67/43/55/-7/0.00/…/..                17 NE  AERO 18 NE  RMY N/A
9/20  78/50/64/+2/0.00/…/..                21 W   AERO 18 W   RMY 20
9/21  83/60/72/+11/0.00/…/..               21 WNW AERO 18 WNW RMY N/A
9/22  85/62/74/+13/0.00/…/..               24 SW  AERO 23 SW  RMY 25
9/23  88/65/77/+17/0.00/…/..               29 SSW AERO 28 SSW RMY 29

9/24  The low since midnight is 62F, normal daily minimum is 52F

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR SEPTEMBER 24
HIGH 87F IN 1959
LOW 33F IN 1885,1950,1963
PRECIP 1.19 INCHES IN 1955
PEAK GUST 54e MPH SW IN 1940

RECORDS FOR SEPTEMBER 25
HIGH 87F IN 1970
LOW 31F IN 1950
PRECIP 2.68 INCHES IN 1961
PEAK GUST 63 MPH SSW IN 1991

TODAY’S REPORT PREPARED BY: Matt Douglas

Please follow and like us:
error
fb-share-icon
Tweet
fb-share-icon
←
→
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
↓ Scroll to read the full Policy — the agreement checkbox will unlock at the bottom