Steve Seman

Director of Online Programs & Associate Teaching Professor of Meteorology & Atmos. Science @psumeteo. @WeatherWorldPSU. #Weather. Cincinnati #Reds. #PennState.

[Steve Seman @SteveSeman]

Pretty wild that State College has two record lowest max temps in the last 10 days (49º back on May 14, 51º yesterday), and sandwiched in between was a near record high (90º on May 18). #pawx

[PSU Meteorology and Atmospheric Science @psumeteo]

Penn State won the 2025-2026 WxChallenge North American collegiate weather forecasting competition! The top-5 forecasters on the team have their name engraved on the WxChallenge trophy. L to R: Steve Seman, Luke LeBel, Braedon Stouffer, and Grant LaChat (Alex Massa -not pictured)

[Steve Seman @SteveSeman]

Looks like Philadelphia has hit at least 98º today. That's going to be a new record for the month of May pending official data #pawx

[Steve Seman @SteveSeman]

@seckhardt It's exceedingly rare outside of meteorological summer. Only 3 instances -- all in early September.

98º would be a May monthly record, though!

[Steve Seman @SteveSeman]

@ScoreboardRich Maloney, Nolan, Soto, Browning

[Steve Seman @SteveSeman]

@JoanneFOX5 Congratulations!

[Steve Seman @SteveSeman]

Impressive chill this morning even at stations that didn't set records.

34º in Philadelphia and 26º in State College both mark the coldest morning this late in the season since 1989. #pawx

[Ben Reppert @WxReppert]

New daily record lows were set this morning in Allentown (24°), Scranton (24°), Williamsport (25°) and Harrisburg (29°)

@WeatherWorldPSU #pawx

[Steve Seman @SteveSeman]

It is time.

[Steve Seman @SteveSeman]

Central PA hasn't been near the seat of the heat lately, but it got impressively warm for March ahead of the storms yesterday. 82º in State College was a daily record, and the first time in the 80s in March since 1998.

Ties for the 5th highest March temp on record, too #pawx

[Weather World @WeatherWorldPSU]

A tribute to the late Dr. John Dutton, who was instrumental in helping to launch Weather World as a standalone show in 1983: https://t.co/sOtI0Yw5D1 @jmnese @WPSU @pcntv @PSUEMS @psumeteo

[Steve Seman @SteveSeman]

Winds absolutely ripping in NW Ohio today. Multiple sustained wind reports of 50+ mph at Findlay Airport, with gusts as high as 71 mph #ohwx

[Steve Seman @SteveSeman]

@JamieOber8590 Ha, I wondered this as well, and was surprised to find it was last winter, though Dec 2024 and Feb 2025 negative anomalies were really small. Before that, I think it's 2013-2014. Winter of 2014-2015 was just as cold, but December was above normal, Jan/Feb WAY below normal

[Steve Seman @SteveSeman]

The most remarkable thing weatherwise about this winter in State College wasn't the cold (ranked 40th coldest). It was dry weather. We had just 4.52" of liquid-equivalent precipitation December-February, which ranks as the 8th driest meteorological winter on record. #pawx

[Steve Seman @SteveSeman]

How cold was this winter in Central PA? It was so cold that State College had its...<checks notes>...40th coldest winter on record.

There was an impressive ~3 weeks of cold from mid-Jan to early Feb, but seasonal temps overall were closer to middle of the pack than extreme #pawx

[Weather World @WeatherWorldPSU]

Think it's been a cold and snowy winter in Pennsylvania? @jmnese offers some perspective in this week's edition of #WxYz: https://t.co/YcjyETl0jB @WPSU @pcntv

[Steve Seman @SteveSeman]

Even with the biggest snowstorm in several years a few weeks ago, State College has fallen behind normal snowfall to date.

Normal snowfall through February 11: 26.5"
Snow this cold season: 24.3"

#pawx

[Steve Seman @SteveSeman]

Lows through 7AM:

PSU COOP site on campus: -2ºF
KUNV: 0ºF
My backyard: -10ºF
#pawx

[Steve Seman @SteveSeman]

Bold forecast by @NWSStateCollege for tonight! We haven't been double-digits below zero in State College since 1994! #pawx

[Steve Seman @SteveSeman]

Bold forecast by @NWSStateCollege for tonight! We haven't been double-digits below zero in State College since 1994! #pawx

[Steve Seman @SteveSeman]

Yesterday also might have been the last chance this winter for a single-digit high in State College. The next week to 10 days looks much more seasonable, and by late February, climatology makes it tough to do. #pawx

[Steve Seman @SteveSeman]

As impressive as the recent cold stretch has been, State College still hasn't managed a day with a single-digit high. Yesterday was one of the better chances, but we made it to 13ºF.

We haven't had a day with a high in the single digits since 2018. #pawx

[Steve Seman @SteveSeman]

As impressive as the recent cold stretch has been, State College still hasn't managed a day with a single-digit high. Yesterday was one of the better chances, but we made it to 13ºF.

We haven't had a day with a high in the single digits since 2018. #pawx