unseasonably

American  

[uhn-see-zuh-nuhb-lee] / ʌnˈsi zə nəb li /

adverb

1. in a way or to a degree that is not in keeping with the season or situation; unexpectedly, considering the season.

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Example Sentences

Temperatures will, nonetheless, remain unseasonably warm into early next week, and there is no chance of rain in the near future.

From Los Angeles Times

Several weeks ago, on an unseasonably warm winter afternoon in Chicago, I found myself in the second — or possibly third — thrift shop of the day.

From Salon

After a week of unseasonably warm weather, conditions are expected to cool down Friday, with possible showers over the Ventura and Santa Barbara county mountains through the evening, the weather service said.

From Los Angeles Times

The housing market last spring was unseasonably cool.

From Barron's

The New Year’s streak of unseasonably warm weather in Southern California is about to take a break.

From Los Angeles Times