Jones County, Iowa · Frost dates
Jones County frost dates.
First-frost, last-frost, and growing-season length for Jones County, Iowa. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-18
- 20%
- 05-12
- 50%
- 05-01
- 80%
- 04-23
- 90%
- 04-18
First fall frost
- 10%
- 09-21
- 20%
- 09-26
- 50%
- 10-04
- 80%
- 10-14
- 90%
- 10-18
28°F — killing freeze
Last spring freeze
- 10%
- 05-06
- 20%
- 05-01
- 50%
- 04-21
- 80%
- 04-12
- 90%
- 04-06
First fall freeze
- 10%
- 10-01
- 20%
- 10-06
- 50%
- 10-16
- 80%
- 10-25
- 90%
- 10-30
Growing season length (days, 28°F threshold)
- Short year
- 148
- Median
- 178
- Long year
- 207
Source NOAA station
ANAMOSA 1 WNW, IA US
9.1 mi · 30 yrs of record (1991–2020) · 805 ft elev.
Data from ANAMOSA 1 WNW, IA US, 9.1 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
14-day free trial. No credit card. Cancel anytime.