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Saturday, March 30, 2024

March 30, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SATURDAY, MARCH 30, 2024 ALL TIMES ARE…

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SATURDAY, MARCH 30, 2024 ALL TIMES ARE IN EASTERN STANDARD TIME (EST) SUNRISE: 0529E SUNSET:  1808E A BIT WINDY, BUT SUNNY AND DRY… Skies have been mostly clear throughout the day today, save a few distant stratocumulus and cirrus. Following the active stretch we have been in for the past several days, a dry and sunny day like today is always appreciated. The abundant sunshine has allowed us to climb nicely in regard to temperature. Beginning in the mid 30s this morning, we have made it into the low 50s by early afternoon. Winds have been quite busy up here today! Our average speed to this point is 18mph, primarily out of the west-northwest. The peak gust of around 45mph took place a bit before 8am. As the air is dry, visibility has been great today, rising from 60 to 80 miles. That said, standing on the roof to enjoy the view is a below average experience due to those gusty winds. The maximum temperature so far today is 52F degrees, which is 3 degrees above the normal high of 49F. The minimum temperature since midnight is 34F degrees, which is 3 degrees above the normal low of 31F. It should come as no surprise that March has been quite wet! As of 7am this morning, we have received 9.49″ for the month to date. This places us at the 6th wettest March on record. See below for the rankings as compiled by our Chief Scientist, Mike Iacono. BHO Highest March Precipitation, inches (1886-2024): 1) 18.81 in 2010 2) 13.07 in 2001 3) 10.96 in 1968 4) 10.02 in 1983 5) 9.53 in 1953 6) 9.49 in 2024 (through 3/30) 7) 9.00 in 1984 8) 8.72 in 1993 9) 8.68 in 2018 10) 8.09 in 1956 Despite a February that was quite dry, the combination of a wet January and March have also placed us within the top 10 for wettest Jan-Mar periods. With a total of 20.05″ since January 1st as of 7am this morning, this lands us in 6th place for record wettest January-March. Below are the rankings, again compiled by our Chief Scientist, Mike Iacono. BHO Highest Jan-Mar Precipitation, inches (1886-2024): 1) 27.91 in 2010 2) 23.18 in 1956 3) 21.70 in 1983 4) 21.21 in 1958 5) 21.03 in 1953 6) 20.05 in 2024 (through 3/30) 7) 20.00 in 1998 8) 19.70 in 1936 9) 19.61 in 1984 10) 19.53 in 1999 ————————————————————– Today’s Observations: 7 A.M. Weather: Clear, few stratocumulus all quadrants, few cirrus distant NNW-E Temperature: 36F; Dew Point: 23F; Relative Humidity: 58% Wind: NW @ 16G32 kts, peak wind 38mph WNW @ 6:42am Sea-level pressure: 1002.9 mb; 29.62 in. Hg: rising unsteadily Visibility: 60 miles 6-hr Max temp: 36F 6-hr Min temp: 34F 24-hr Precip:  0.06 inches 24-hr Snowfall: Trace Snow Depth: 0 inches BHO SA 1155 CLR 60 029/36/23/3116G32/962/ FEW SC ALQDS FEW CI DSNT NNW-E PK WND 3033/42/ TOTAL NEW SNW PAST 24 HRS TRACE/ 8/501 52012 70006 10036 20034 10 A.M. Weather: Clear, few stratocumulus distant all quadrants, few cirrus distant N-E Temperature: 44F; Dew Point: 23F; Relative Humidity: 44% Wind: NW @ 18G24 kts, peak wind 36mph NW @ 9:23am Sea-level pressure: 1003.8 mb; 29.64 in. Hg: rising unsteadily Visibility: 70 miles 3-hr Precip:  0.00 inches 3-hr Snowfall: 0.0 inches BHO SA 1455 CLR 70 038/44/23/3018G24/964/ FEW SC DSNT ALQDS FEW CI DSNT N-E PK WND 3131/23/ 8/501 52009 1 P.M. Weather: Clear, few cirrus distant SSE-WSW Temperature: 52F; Dew Point: 30F; Relative Humidity: 42% Wind: WNW @ 17G28 kts, peak wind 39mph WNW @ 12:41pm Sea-level pressure: 1003.5 mb; 29.63 in. Hg: falling, then steady Visibility: 80 miles 6-hr Max temp: 52F 6-hr Min temp: 36F 6-hr Precip:  0.00 inches 6-hr Snowfall: 0.0 inches Snow Depth: 0 inches BHO SA 1755 CLR 80 035/52/30/2917G28/963/ FEW CI DSNT SSE-WSW PK WND 2934/41/ 8/001 56003 10052 20036 ————————————————————– SUMMARY FOR FRIDAY, MARCH 29, 2024 TEMPERATURE (DEGREES F) MAX…….50   NORMAL…..48 MIN…….34   NORMAL…..31 MEAN……42   NORMAL…..40 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………+2 TOTAL DEPARTURE FOR THE MONTH………………….+146 [+4.8 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024) TOTAL HEATING UNITS FOR YESTERDAY……………23  DEPARTURE……..-2 TOTAL HEATING UNITS FOR THE MONTH…………..717  DEPARTURE……-148 TOTAL HEATING UNITS FOR THE SEASON…………4605  DEPARTURE……-692 TOTAL HEATING UNITS LAST SEASON TO DATE…….4475  DEPARTURE……+130 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)……….E48 NW   @  04:24 P.M. VECTOR #1 (1-Sec)……….48 NW   @  07:31 P.M. VECTOR #2 (1-Sec)……….54 WNW  @  07:31 P.M. DAVIS #1……………….46 NW   @  04:24 P.M. DAVIS #2 ………………49 NW   @  04:24 P.M. RMY #1 (Instantaneous)…..52 NW   @  04:24 P.M. RMY #2 (Instantaneous)…..54 NW   @  04:24 P.M. MERLIN…………………47 NW RICHARDS (C5C) (Inst)……49      @  07:31 P.M. FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL………………32 NW   @  04:25 P.M. MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..31      @  04:24 P.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..34      @  04:24 P.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………32 WNW  @  04:24 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………34 NW   @  07:33 P.M. MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..30 NW   @  04:24 P.M. MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..33 NW   @  04:24 P.M. MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………31      @  04:24 P.M. AVERAGE WIND SPEED AND DIRECTION: CONTACTING/OFFICIAL……18.7 NNW [449 total miles] VECTOR #1…………….17.6 VECTOR #2…………….19.0 DAVIS #1……………..18.2 NW DAVIS #2……………..18.5 NNW RMY #1……………….17.1 NW RMY #2……………….18.4 NW RICHARDS (C5C)………..17.9 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.06 DEPARTURE…..-0.11 TOTAL PRECIPITATION FOR THE MONTH…………..9.49 DEPARTURE…..+4.31 TOTAL PRECIPITATION FOR THE YEAR (2024)…….20.05 DEPARTURE…..+6.37 SNOWFALL (INCHES) THROUGH THIS MORNING (EST): TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………TRACE DEPARTURE……-0.3 TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE…..-14.5 TOTAL SNOWFALL FOR THE SEASON (2023-2024)……26.1 DEPARTURE…..-40.3 ————————————————————– 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/+7/1.72/0.0/000/00         23 NNW VEC1 23 NNW RMY 22 3/29  50/34/42/+2/0.54/T/…/..           48 NW  VEC1 48 NW  RMY 52 3/30 The low since midnight is 34F, 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 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 RECORDS FOR MARCH 31 HIGH 89 IN 1998  [RECORD HIGH FOR MONTH] LOW 16 IN 1923 PRECIP 2.89 IN 1987 SNOWFALL 15.0 IN 1997 PEAK GUST 81 MPH SSE IN 1987 TODAY’S REPORT PREPARED BY: Joshua Polen
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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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