Colorado
frost date references.
Explore the historical NOAA stations behind the dates. See which references support a seasonal model, and where that model would be misleading.
Find your local climate reference
Choose a state, then search its cities, towns and Census-designated places.
Choose a state to search the national Census place inventory.
Census places are not ZIP codes. A nearby station is a reference, not a garden-level measurement. Distance and data limitations are shown before any calculation.
Colorado weather stations
36 references do not support an ordinary annual freeze calendar.
Akron 4 E
Seasonal referenceConditional spring median May 8
Explore probability datesAkron Washington Co AP
Seasonal referenceConditional spring median May 6
Explore probability datesAlamosa 1e
Seasonal referenceConditional spring median May 30
Explore probability datesAlamosa San Luis AP
Seasonal referenceConditional spring median Jun 7
Explore probability datesAllenspark 3nw
Seasonal referenceConditional spring median Jun 14
Explore probability datesAltenbern
Seasonal referenceConditional spring median May 25
Explore probability datesAntero Rsvr
Read the source statusYear-round freeze risk
Explore probability datesArapahoe 12s
Seasonal referenceConditional spring median May 5
Explore probability datesArapahoe 14n
Seasonal referenceConditional spring median May 9
Explore probability datesAspen 1sw
Seasonal referenceConditional spring median Jun 2
Explore probability datesAspen Pitkin Co AP
Seasonal referenceConditional spring median May 31
Explore probability datesBailey
Seasonal referenceConditional spring median Jun 16
Explore probability datesChoose crops with
regional guidance.
A freeze date does not establish crop suitability. Our vegetable guides keep maturity, soil-temperature and planting-calendar sources tied to their actual regions.