Aitkin County, Minnesota · Frost dates
Aitkin County frost dates.
First-frost, last-frost, and growing-season length for Aitkin County, Minnesota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 06-01
- 20%
- 05-27
- 50%
- 05-16
- 80%
- 05-06
- 90%
- 04-30
First fall frost
- 10%
- 09-12
- 20%
- 09-18
- 50%
- 09-28
- 80%
- 10-06
- 90%
- 10-12
28°F — killing freeze
Last spring freeze
- 10%
- 05-21
- 20%
- 05-14
- 50%
- 05-04
- 80%
- 04-24
- 90%
- 04-19
First fall freeze
- 10%
- 09-23
- 20%
- 09-28
- 50%
- 10-08
- 80%
- 10-19
- 90%
- 10-25
Growing season length (days, 28°F threshold)
- Short year
- 125
- Median
- 157
- Long year
- 189
Source NOAA station
AITKIN 2E, MN US
12.9 mi · 30 yrs of record (1991–2020) · 1215 ft elev.
Data from AITKIN 2E, MN US, 12.9 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
14-day free trial. No credit card. Cancel anytime.