« LJ Kirk the winner in the 2010-2011 snow contest | Main | Crow Moon on the rise »

March 18, 2011

Thermometer reaches record 81 degrees at BWI

Baltimore temperatures

Our little one-day "heat wave" has pushed temperatures near Baltimore into the 80s this afternoon.

The official thermometer at BWI-Marshall Airport stood at 81 degrees just before 5 p.m. That seemed likely to stand as the day's high, but was already enough to set a new record for a March 18 in Baltimore. The old mark was 80 degrees, set on March 18, 1989.

It was also the first time Baltimore has reached the 80s since last Oct. 12, when the high was 81 degrees.

Elsewhere, temperatures pushed into the upper 70s and low 80s across the region. It was 82 degrees at the Maryland Science Center at 5 p.m., according to the National Weather Service. It was 81 at Martin State Airport in Middle River, in Frederick, and at The Sun's weather station (top)at Calvert and Centre Streets in Baltimore. Charlottesville, Va. reported 80 degrees.

It was 79 at Dulles Airport, also a new record, according to the National Weather Service. Annapolis reported 77 degrees; so did Reagan National Airport in Washington.

This will be it for this kind of weather for a while. The weekend looks sunny, but there's a cold front pushing through later today, so the weekend highs will only be in the 50s.

Posted by Frank Roylance at 4:59 PM | | Comments (2)
Categories: By the numbers


Bleccch. Waaaaaay too early for heat like this. I don't mind mild spring temperatures, but I don't want to be breaking a sweat in March.

We'll have plenty of uncomfortable days in the summer for people who like that sort of thing. As for me, I don't want to see a day over 65 degrees until at least May.


With yesterday's "heat wave," many of us gardeners are feeling a seductive tug. Can you give us a healthy dose of reality regarding the (statistical) likelihood of frost in the coming weeks?

FR: You need to sit on your hands for a few more weeks. While the average daily lows have now reached 35 degrees for Baltimore, that's just an average. And, you can have a frost with air temperatures above freezing. Victory Seed Co. says the average final frost for Baltimore is April 11. Annapolis, 4/23. Cambridge 4/26. Pocomoke City 5/28. Hagerstown 5/3. Oakland (bless them) 6/5.

Post a comment

All comments must be approved by the blog author. Please do not resubmit comments if they do not immediately appear. You are not required to use your full name when posting, but you should use a real e-mail address. Comments may be republished in print, but we will not publish your e-mail address. Our full Terms of Service are available here.

Verification (needed to reduce spam):

About Frank Roylance
This site is the Maryland Weather archive. The current Maryland Weather blog can be found here.
Frank Roylance is a reporter for The Baltimore Sun. He came to Baltimore from New Bedford, Mass. in 1980 to join the old Evening Sun. He moved to the morning Sun when the papers merged in 1992, and has spent most of his time since covering science, including astronomy and the weather. One of The Baltimore Sun's first online Web logs, the Weather Blog debuted in October 2004. In June 2006 Frank also began writing comments on local weather and stargazing for The Baltimore Sun's print Weather Page. Frank also answers readers’ weather queries for the newspaper and the blog. Frank Roylance retired in October 2011. Maryland Weather is now being updated by members of The Baltimore Sun staff

Sign up for FREE weather alerts*
Get free Baltimore Sun mobile alerts
Sign up for weather text alerts

Returning user? Update preferences.
Sign up for more Sun text alerts
*Standard message and data rates apply. Click here for Frequently Asked Questions.
Maryland Weather Center

Area Weather Stations
Resources and Sun coverage
• Weather news

• Readers' photos

• Data from the The Sun's weather station

• 2011 stargazers' calendar

• Become a backyard astronomer in five simple steps

• Baltimore Weather Archive
Daily airport weather data for Baltimore from 1948 to today

• National Weather Service:
Sterling Forecast Office

• Capital Weather Gang:
Washington Post weather blog

• CoCoRaHS:
Community Collaborative Rain, Hail and Snow Network. Local observations by volunteers

• Weather Bug:
Webcams across the state

• National Data Buoy Center:
Weather and ocean data from bay and ocean buoys

• U.S. Drought Monitor:
Weekly maps of drought conditions in the U.S.

• USGS Earthquake Hazards Program:
Real-time data on earthquakes

• Water data:
From the USGS, Maryland

• National Hurricane Center

• Air Now:
Government site for air quality information

• NWS Climate Prediction Center:
Long-term and seasonal forecasts

• U.S. Climate at a Glance:
NOAA interactive site for past climate data, national, state and city

• Clear Sky Clock:
Clear sky alerts for stargazers


• Hubblesite:
Home page for Hubble Space Telescope

• Heavens Above:
Everything for the backyard stargazer, tailored to your location

• NASA Eclipse Home Page:
Centuries of eclipse predictions

• Cruise Critic: Hurricane Zone:
Check to see how hurricanes may affect your cruise schedule

• Warming World:
NASA explains the science of climate change with articles, videos, “data visualizations,” and space-based imagery.

• What on Earth:
NASA blog on current research at the space agency.
Most Recent Comments
Blog updates
Recent updates to news blogs
 Subscribe to this feed
Charm City Current
Stay connected