A major winter allergen in the southern United States, particularly Texas. Releases massive amounts of pollen in December through February, causing "cedar fever".

Season December to March
Peak December to February

In a typical year, Mountain Cedar Pollen season runs December to March, peaking around December to February.

No tracked city is currently reporting measurable Mountain Cedar Pollen, which is typical when it is out of season.

Mountain Cedar Pollen season by country

Typical windows from our country pollen calendars; the weather shifts them earlier or later each year.

CountrySeasonPeak
United StatesNov–FebDec–Jan