January 2025

[TheClimateChanger]

55 minutes ago, LibertyBell said:

I'd want to experience the 1780s for this and also for that volcanic eruption in Iceland that caused the mammoth winter of 1782-83 which I'm convinced was more snowy than any winter that has happened since.

 

No snowfall measurements from that winter anywhere?

 

The winter of 1797-1798 must have pretty solid as well. Fine sleighing conditions, no doubt. The Tidewater Region probably had more snow in this 10-day stretch than they've had in the entire 21st century. 

Excerpt from "Why the Weather?" by Charles Frankin Brooks (1924).

Some more details:

[Stormlover74]

6 years ago

 

 

[LibertyBell]

6 minutes ago, TheClimateChanger said:

The winter of 1797-1798 must have pretty solid as well. Fine sleighing conditions, no doubt. The Tidewater Region probably had more snow in this 10-day stretch than they've had in the entire 21st century. 

Excerpt from "Why the Weather?" by Charles Frankin Brooks (1924).

Some more details:

100 inches of snow in 10 days in Norfolk, Va? WOW !

and the revenge of the coastal in the second snow storm, 40 inches in Norfolk in one night and 0 inches 25 miles inland!

 

[BoulderWX]

6 hours ago, Snowshack said:

Hope that doesnt greenlight another dumping of road salt

100% agree. Im looking forward to the rain to finally get rid of it all. 

[donsutherland1]

Parts of the Great Lakes region saw exceptional warmth today. Some highlights:

Green Bay: 53° (old record: 42°, 1989)
La Crosse: 58° (old record: 48°, 1890 and 1931) ***New January monthly record***
Madison: 57° (old record: 47°, 1974)
Milwaukee: 56° (old record: 53°, 1988)
Minneapolis: 52° (old record: 48°, 1879 and 1989)
Prairie du Chien: 60° (old record: 52°, 1903)
Rochester, MN: 56° (old record: 48°, 1919)
Waupaca: 56° (old record: 47°, 1974)

Some of this warm air will sweep into the Northeast tomorrow. As a result, January will end with a rebound in temperatures. New York City will see temperatures reach the lower and middle 40s. Farther south, Washington, D.C. could have a high in the middle or perhaps upper 50s.

Rain will also develop. New York City and Philadelphia will likely see a general 0.25"-0.75" rainfall. Upstate New York State and northern New England could see snow and ice.

January 2025 is on course to become New York City's coldest January since January 2022. January 2022 had a mean temperature of 30.3°. January 2022 was far snowier with 15.3" monthly snowfall in New York City vs. 2025's 3.0". In contrast, January 2024 (2.3") and January 2023 (Trace) saw even less snowfall than January 2025. In fact, five of the six past years have seen less snowfall in New York City than January 2025.

The first few days of February will see cooler readings, but moderation will follow after the coming weekend.

The AO is now positive and is expected to remain predominantly positive through at least the first week of February. As a result, prospects for a 6" or above snowstorm in the New York City area will be limited. Since 1950, just 2 of 19 (11%) of storms with an AO of +2.000 or above during January 15-February 15 saw 6" or more of snow in New York City. Opportunities for a 6" or above snowstorm could persist for parts of southern New England, including Boston, through the first week of February. There is substantial uncertainty concerning the AO following the first week of February. The spread among ensemble members is currently a remarkable 8 sigma.   

The ENSO Region 1+2 anomaly was -0.4°C and the Region 3.4 anomaly was -0.9°C for the week centered around January 22. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.08°C and the ENSO Region 3.4 anomaly has averaged -0.80°C. La Niña conditions are underway and will likely persist into the start of spring.

The SOI was +11.83 yesterday.

The preliminary Arctic Oscillation (AO) was +0.425 today.

Based on sensitivity analysis applied to the latest guidance, there is an implied near 100% probability that New York City will have a colder than normal January (1991-2020 normal). January will likely finish with a mean temperature near 31.0° (2.9° below normal).