GivingTuesday · December 1 · Help keep 141 years of weather observations going.

Give now
Sign In Become a Member
Daily Discussions

Monday, November 9, 2026

November 9, 2026

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, NOVEMBER 9, 2026 ALL TIMES ARE…

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

MONDAY, NOVEMBER 9, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0628E
SUNSET:  1628E

MAINLY OVERCAST TODAY WITH A FEW VERY LIGHT RAIN SHOWERS THIS
MORNING….

The day started on the dry side, but with mainly cloudy skies.
A few very light rain showers developed between 9-10am and have
continued off and on into early this afternoon. The rain has been
very light, and thus has only amounted to a trace.

Temperatures are once again near seasonable norms for today, at
least in terms of daytime readings which have reached the mid 50s.
The overnight low was still considerably above normal in the mid
40s. Normal lows should be in the mid 30s. Dew points have slowly
risen from the mid 30s early this morning to the mid 40s by early
this afternoon. This rise is mostly due to the light precipitation
moving through the area.

Winds have been pretty steady, but not as strong as yesterday.
They have mostly been out of a westerly direction, averaging at
around 12mph for the day so far. The peak gust for the day so far
is 28mph, which occurred just before 12:45pm this afternoon.

Visibility has been decent for the most part, generally between
50-60 miles throughout the day. It has dropped a bit lower at
times due to the rain, but such occurrences have been brief.

The maximum temperature so far today is 56F, which is 4 degrees
above the normal high of 52F. The minimum temperature since
midnight is 45F, which is 9 degrees above the normal low of 36F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Broken altocumulus
Temperature: 46F; Dew Point: 36F; Relative Humidity: 67%
Wind: W @ 10G16 kts
Sea-level pressure: 1005.4 mb; 29.69 in. Hg: falling, then rising
Visibility: 60 miles
6-hr Max temp: 46F
6-hr Min temp: 45F
24-hr Precip: 0.00 inches
BHO SA 1155 E85 BKN 60 054/46/36/2610G16/969/ 8/050 53004 10046 20045

10 A.M.
Weather: Overcast altostratus, few breaks in overcast distant ESE-S,
few stratocumulus distant WNW-NNW, very light rain
Temperature: 49F; Dew Point: 40F; Relative Humidity: 71%
Wind: W @ 10G16 kts
Sea-level pressure: 1005.6 mb; 29.70 in. Hg: falling, then rising
Visibility: 50 miles
3-hr Precip: Trace
BHO SA 1455 E80 OVC 50R- 056/49/40/2710G16/970/ FEW BINOVC DSNT ESE-S
FEW SC DSNT WNW-NNW HIER CLDS VSBL DSNT ESE-S R-B08 PCPN VRY LGT/
8/52/ 50002 6000/

1 P.M.
Weather: Broken stratocumulus, broken altocumulus/altostratus,
virga all quadrants
Temperature: 54F; Dew Point: 41F; Relative Humidity: 62%
Wind: WNW @ 12G20 kts
Sea-level pressure: 1005.5 mb; 29.69 in. Hg: falling, then rising
Visibility: 60 miles
6-hr Max temp: 56F
6-hr Min temp: 46F
6-hr Precip: Trace
BHO SA 1755 E50 BKN 120 BKN 60 055/54/41/2912G20/969/ VIRGA ALQDS
R-E26/ 8/570 55001 6000/ 10056 20046

————————————————————–

SUMMARY FOR SUNDAY, NOVEMBER 8, 2026

TEMPERATURE (DEGREES F)
MAX…….55   NORMAL…..53
MIN…….43   NORMAL…..36
MEAN……49   NORMAL…..45

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+4
TOTAL DEPARTURE FOR THE MONTH (NOV)…………………+94 [+11.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2026 THRU JUN 2027)
TOTAL HEATING UNITS FOR YESTERDAY…………….16  DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH (NOV)……….59  DEPARTURE…….-96
TOTAL HEATING UNITS FOR THE SEASON…………..521  DEPARTURE……-146
TOTAL HEATING UNITS LAST SEASON TO DATE………560  DEPARTURE…….-39

PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated *=Last of multiple occurrences

F420C (Official)………..37 WNW  @   10:53 A.M.
VECTOR #1 (1-Sec)……….35 WNW  @   11:35 A.M.
VECTOR #2 (1-Sec)……….39 WNW  @   11:35 A.M.
DAVIS #1……………….36 WNW  @   11:35 A.M.
DAVIS #2 ………………37 NW   @   11:35 A.M.
RMY #1 (Instantaneous)…..37 WNW  @   11:57 A.M.
RMY #2 (Instantaneous)…..40 WNW  @   11:35 A.M.
MERLIN…………………33 NW
RICHARDS (C5C) (Inst)……36 WNW  @   11:35 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………25 WNW  @   11:30 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..24 WNW  @   11:56 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..28 WNW  @   11:37 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………25 W    @   10:36 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………28 WNW  @   11:37 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..24 WNW  @   11:31 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..27 WNW  @   11:37 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………24 WNW  @   11:31 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….13.3 WNW [319 total miles] VECTOR #1……………..13.2
VECTOR #2……………..14.3
DAVIS #1………………13.7 W
DAVIS #2…………………M
RMY #1………………..13.0 W
RMY #2………………..13.5 W
RICHARDS (C5C)…………13.3

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH (NOV)……..3.58 DEPARTURE…..+2.41
TOTAL PRECIPITATION FOR THE YEAR (2026)…….43.28 DEPARTURE…..-2.05

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING AT 7 A.M………..0.0 DEPARTURE…….0.0
TOTAL SNOWFALL FOR THE MONTH (NOV)…………..0.0 DEPARTURE……-0.3
TOTAL SNOWFALL FOR THE SEASON (JUL-JUN)………0.0 DEPARTURE……-1.0

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY
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

11/1  57/35/46/-1/0.00/0.0/619/100       28 SW  VEC1 28 SW  RMY 27
11/2  70/45/58/+11/0.00/0.0/605/98       25 W   VEC1 26 W   RMY 26
11/3  74/52/63/+17/0.00/0.0/301/49       22 SW  VEC1 22 WSW RMY 23
11/4  76/53/65/+19/0.00/0.0/593/97       29 SW  VEC1 30 SW  RMY 30
11/5  70/58/64/+18/T/0.0/231/38          35 SW  VEC1 35 SW  RMY 36
11/6  65/60/63/+18/2.46/0.0/000/00       36 S   VEC1 36 S   RMY 35 TSTM
11/7  60/45/53/+8/0.98/0.0/000/00        23 WSW VEC1 22 W   RMY 23
11/8  55/43/49/+4/0.14/0.0/…/..        37 WNW VEC1 35 WNW RMY 37

11/9 The low since midnight is 45F, the daily normal low is 36F.

————————————————————–

NOVEMBER DAILY RECORDS TO DATE

11/5 RECORD HIGH MINIMUM TEMPERATURE OF 58F;
BEATING THE OLD RECORD OF 57F SET IN 1948 AND 2022

11/6 RECORD PRECIPITATION OF 2.46″;
BEATING THE OLD RECORD OF 1.72″ SET IN 1907

————————————————————–

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

RECORDS FOR NOVEMBER 9
HIGH 74 IN 2020
LOW 17 IN 1971
PRECIP 1.37 INCHES IN 1969
SNOWFALL 0.5 IN 1892
PEAK GUST 73e S IN 1943

RECORDS FOR NOVEMBER 10
HIGH 75 IN 1931
LOW 20 IN 2004
PRECIP 2.11 INCHES IN 1888
SNOWFALL 2.2 IN 1987
PEAK GUST 83e S IN 1942

TODAY’S REPORT PREPARED BY: Matt Douglas

Please follow and like us:
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