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Friday, March 29, 2024

March 29, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA FRIDAY, MARCH 29, 2024 ALL TIMES ARE…

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA FRIDAY, MARCH 29, 2024 ALL TIMES ARE IN EASTERN STANDARD TIME (EST) SUNRISE: 0531E SUNSET:  1807E MORNING RAIN LEADS TO EARLY AFTERNOON CLEARING AND BREEZY CONDITIONS… This morning we had rain with a brief period of rain-snow mix that tapered off by the late morning hours. Our precipitation total for today so far is 0.54 inches, which puts us over 9″ for the month. The good news is that by noontime the rain moved out of our area and we had some clearing and brightening of the skies, something that hasn’t been seen in the past couple of days! Temperatures were just slightly above freezing and rebounded just a bit after the rain cleared. With the damp conditions and gusty winds it has felt very raw and chilly for most of the day. As mentioned earlier, it has been much windier than the past couple of days. The wind has been out of the NNW for most of the day with an average speed of about 15 mph. We have had frequent gusts in the 25-30 mph range this morning with our peak gust so far around 40 mph. As of the last observation the wind was still increasing in gust frequency. Visibility has been limited to about 30 miles due to the local foggy conditions on the hill, but has slightly improved once the rain had left the area. Our final visibility observation was about 60 miles. The maximum temperature so far today is 44F degrees, which is 4 degrees below the normal high of 48F. The minimum temperature since midnight is 34F degrees, which is 3 degrees above the normal low of 31F. ————————————————————– Today’s Observations: 7 A.M. Weather: Light rain, scattered stratus, few lower stratus fractus all quadrants Temperature: 36F; Dew Point: 36F; Relative Humidity: 100% Wind: NNW @ 15G25 kts Sea-level pressure: 1002.5 mb; 29.60 in. Hg: falling, then more rapidly Visibility: 30 miles, thin fog all quadrants 6-hr Max temp: 41F 6-hr Min temp: 35F 24-hr Precip:  1.86 inches 24-hr Snowfall: 0.0 inches Snow Depth: 0 inches BHO SA 1155 E9 OVC 30R- 025/36/36/3315G25/960/ THN F ALQDS FEW LWR STRFA ALQDS/ 8/62/ 58010 6037/ 70186 10041 20035 10 A.M. Weather: Light rain-snow, scattered stratus Temperature: 34F; Dew Point: 34F; Relative Humidity: 100% Wind: NNW @ 16G29 kts, peak wind NW @ 38mph at 9:34am Sea-level pressure: 1001.0 mb; 29.56 in. Hg: steady, then falling Visibility: 30 miles, thin fog all quadrants 3-hr Precip:  0.04 inches 3-hr Snowfall: Trace BHO SA 1455 E6 OVC 30R-S- 010/34/34/3316G29/956/ THN F ALQDS PK WND 3233/34/ TOTAL NEW SNW PST 3 HRS TRACE/ 8/6// 58015 6004/ 1 P.M. Weather: Broken stratocumulus, overcast altostratus Temperature: 44F; Dew Point: 34F; Relative Humidity: 57% Wind: NW @ 21G35 kts, peak wind NW @ 40 mph at 12:59pm Sea-level pressure: 998.1 mb; 29.47 in. Hg: falling, then more slowly Visibility: 60 miles 6-hr Max temp: 44F 6-hr Min temp: 34F 6-hr Precip:  0.06 inches 6-hr Snowfall: 0.0 inches Snow Depth: 0 inches BHO SA 1755 E40 BKN 95 OVC 60 981/44/30/3221G35/947/ PK WND 3235/59/ 8/52/ 56029 6006/ 10044 20034 ————————————————————– SUMMARY FOR THURSDAY, MARCH 28, 2024 TEMPERATURE (DEGREES F) MAX…….49   NORMAL…..48 MIN…….42   NORMAL…..31 MEAN……46   NORMAL…..39 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………+7 TOTAL DEPARTURE FOR THE MONTH………………….+144 [+4.9 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024) TOTAL HEATING UNITS FOR YESTERDAY……………19  DEPARTURE……..-7 TOTAL HEATING UNITS FOR THE MONTH…………..694  DEPARTURE……-146 TOTAL HEATING UNITS FOR THE SEASON…………4582  DEPARTURE……-690 TOTAL HEATING UNITS LAST SEASON TO DATE…….4451  DEPARTURE……+131 PEAK WIND GUST (MPH): Note: Instruments designated #1 = Main Tower, #2 = South Tower, F420C, Contacting, Merlin, and Richards are all Main Tower. E=Estimated F420C (Official)……….E23 NNW  @  08:38 P.M. VECTOR #1 (1-Sec)……….23 NNW  @  08:38 P.M. VECTOR #2 (1-Sec)……….22 NNW  @  11:06 P.M. DAVIS #1……………….21 N    @  08:38 P.M. DAVIS #2 ………………20 N    @  08:38 P.M. RMY #1 (Instantaneous)…..22 NNW  @  11:23 P.M. RMY #2 (Instantaneous)…..22 N    @  08:38 P.M. MERLIN…………………29 NNW RICHARDS (C5C) (Inst)……21      @  11:23 P.M. FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL………………15 ENE  @  12:09 P.M. MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..15      @  12:07 P.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16      @  12:07 P.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 ENE  @  12:07 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 ENE  @  12:07 P.M. MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..15 ENE  @  12:07 P.M. MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 NE   @  12:07 P.M. MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16      @  12:07 P.M. AVERAGE WIND SPEED AND DIRECTION: CONTACTING/OFFICIAL…….6.2 N  [148 total miles] VECTOR #1……………..7.0 VECTOR #2……………..7.1 DAVIS #1………………6.6 N DAVIS #2………………6.6 NNE RMY #1………………..6.7 N RMY #2………………..7.1 N RICHARDS (C5C)…………7.3 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..1.86 DEPARTURE…..+1.68 TOTAL PRECIPITATION FOR THE MONTH…………..9.43 DEPARTURE…..+4.42 TOTAL PRECIPITATION FOR THE YEAR (2024)…….19.99 DEPARTURE…..+6.48 SNOWFALL (INCHES) THROUGH THIS MORNING (EST): TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.3 TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE…..-14.2 TOTAL SNOWFALL FOR THE SEASON (2023-2024)……26.1 DEPARTURE…..-40.0 ————————————————————– PRELIMINARY CLIMATE SUMMARY FOR MARCH CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated) 3/1   41/18/30/-1/0.00/0.0/649/96         30 NW  VEC1 30 WNW RMY 33 3/2   50/32/41/+9/1.16/0.0/000/00         44 SSE VEC1 46 SE  RMY 42 3/3   55/42/49/+17/0.24/0.0/130/19        32 SSE VEC1 33 SSE RMY 32 3/4   49/36/43/+11/0.01/0.0/116/17        24 ENE VEC1 22 ENE RMY 23 3/5   42/36/39/+7/0.14/0.0/000/00         21 E   VEC1 21 E   RMY 21 3/6   51/39/45/+12/0.44/0.0/000/00        28 NE  VEC1 28 NE  RMY 29 3/7   42/37/40/+7/1.06/0.0/000/00         44 NNE VEC1 44 NNE RMY 42 3/8   45/32/39/+6/0.00/0.0/682/98         35 NNE VEC1 36 NNE RMY 38 3/9   40/32/36/+3/0.21/0.0/000/00         32 E   VEC1 32 E   RMY 31 3/10  51/36/44/+10/1.07/0.0/245/35        45 WNW VEC1 46 SE  RMY 45 3/11  43/30/37/+3/T/T/515/73              53 NW  VEC1 54 NW  RMY 58 3/12  54/33/44/+10/0.00/0.0/680/96        43 NW  VEC1 41 NW  RMY 45 3/13  54/33/44/+10/0.00/0.0/667/94        26 SSE VEC1 25 NNW RMY 25 3/14  58/36/47/+12/0.00/0.0/627/88        23 ENE VEC1 22 NE  RMY 21 3/15  44/37/41/+6/0.02/0.0/000/00         24 N   VEC1 23 NNW RMY 25 3/16  58/36/47/+12/0.00/0.0/510/71        29 S   VEC1 26 S   RMY 26 3/17  59/40/50/+14/0.04/0.0/390/54        38 NW  VEC1 38 NW  RMY 40 3/18  49/33/41/+5/0.00/0.0/558/77         38 W   VEC1 37 W   RMY 38 3/19  46/30/38/+2/0.00/0.0/575/79         44 NW  VEC1 43 NW  RMY 46 3/20  51/29/40/+3/0.11/T/190/26           50 WNW VEC1 50 WNW RMY 51 3/21  38/24/31/-6/T/T/704/96              53 WNW VEC1 53 WNW RMY 52 3/22  40/21/31/-6/T/T/427/58              29 WNW VEC1 29 WNW RMY 32 3/23  44/30/37/-1/2.49/T/000/00           48 NNW VEC1 47 NNW RMY 51 3/24  41/23/32/-6/0.00/0.0/460/62         38 NNW VEC1 39 NNW RMY 42 3/25  39/31/25/-3/0.00/0.0/343/46         41 ENE VEC1 41 NE  RMY 40 3/26  36/32/34/-5/0.15/0.0/000/00         38 NE  VEC1 38 NE  RMY 39 3/27  53/36/45/+6/0.10/0.0/038/05         23 NE  VEC1 24 NE  RMY 23 3/28  49/42/46/+7/1.72/0.0/…/..         23 NNW VEC1 23 NNW RMY 55 3/29 The low since midnight is XXF, the daily normal low is 31F. ————————————————————– MARCH DAILY RECORDS TO DATE NONE… ————————————————————– DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated) RECORDS FOR MARCH 29 HIGH 85 IN 1945 LOW -2 IN 1923 PRECIP 2.78 INS. IN 1984 SNOWFALL 13.5 INS. IN 1984 PEAK GUST 95 MPH ENE IN 1984 RECORDS FOR MARCH 30 HIGH 83 IN 1977 LOW 10 IN 1887 PRECIP 2.92 INS. IN 2010 SNOWFALL 3.9 INS. IN 1957 PEAK GUST 60 MPH NW IN 1999 TODAY’S REPORT PREPARED BY: Amanda Joly
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