Twin Falls County, Idaho · Frost dates
Twin Falls County frost dates.
First-frost, last-frost, and growing-season length for Twin Falls County, Idaho. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 05-28
- 20%
- 05-21
- 50%
- 05-09
- 80%
- 04-29
- 90%
- 04-25
First fall frost
- 10%
- 09-20
- 20%
- 09-25
- 50%
- 10-04
- 80%
- 10-15
- 90%
- 10-20
28°F — killing freeze
Last spring freeze
- 10%
- 05-11
- 20%
- 05-05
- 50%
- 04-25
- 80%
- 04-14
- 90%
- 04-08
First fall freeze
- 10%
- 09-29
- 20%
- 10-03
- 50%
- 10-15
- 80%
- 10-25
- 90%
- 10-30
Growing season length (days, 28°F threshold)
- Short year
- 141
- Median
- 173
- Long year
- 205
Source NOAA station
TWIN FALLS SUN VLY RGNL AP, ID US
12.8 mi · 30 yrs of record (1991–2020) · 4151 ft elev.
Data from TWIN FALLS SUN VLY RGNL AP, ID US, 12.8 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
14-day free trial. No credit card. Cancel anytime.