Last spring frost
Apr 1
Frost Dates for Village of Oak Creek (Big Park), AZ
First fall frost
Nov 17
Growing season
229 days
Hardiness zone
8b
In an average year around Village of Oak Creek (Big Park), AZ, the last spring frost (32°F) is about Apr 1 and the first fall frost is about Nov 17, giving roughly a 229-day growing season. To be safe most years, wait until Mar 6 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | May 1 | Apr 17 | Mar 31 |
| Freeze (32°F) | Apr 19 | Apr 1 | Mar 6 |
| Hard (28°F) | Apr 6 | Mar 6 | Feb 1 |
| Severe (24°F) | Mar 13 | Feb 5 | Jan 2 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 1 | Apr 27 | Apr 24 | Apr 20 | Apr 17 | Apr 14 | Apr 10 | Apr 6 | Mar 31 |
| 32°F | Apr 19 | Apr 13 | Apr 10 | Apr 5 | Apr 1 | Mar 28 | Mar 21 | Mar 15 | Mar 6 |
| 28°F | Apr 6 | Mar 29 | Mar 20 | Mar 12 | Mar 6 | Feb 28 | Feb 22 | Feb 13 | Feb 1 |
| 24°F | Mar 13 | Feb 28 | Feb 20 | Feb 12 | Feb 5 | Jan 30 | Jan 21 | Jan 10 | Jan 2 |
| 20°F | Feb 13 | Feb 3 | Jan 26 | Jan 14 | Jan 8 | Jan 3 | Dec 29 | Dec 21 | Dec 12 |
| 16°F | Jan 31 | Jan 19 | Jan 10 | Jan 6 | Jan 2 | Dec 29 | Dec 22 | Dec 14 | Dec 7 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Oct 18 | Nov 5 | Nov 23 |
| Freeze (32°F) | Oct 28 | Nov 17 | Dec 3 |
| Hard (28°F) | Nov 6 | Nov 27 | Dec 13 |
| Severe (24°F) | Nov 20 | Dec 8 | Dec 25 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 18 | Oct 24 | Oct 29 | Nov 1 | Nov 5 | Nov 9 | Nov 14 | Nov 17 | Nov 23 |
| 32°F | Oct 28 | Nov 3 | Nov 9 | Nov 14 | Nov 17 | Nov 20 | Nov 24 | Nov 28 | Dec 3 |
| 28°F | Nov 6 | Nov 15 | Nov 20 | Nov 24 | Nov 27 | Dec 1 | Dec 4 | Dec 8 | Dec 13 |
| 24°F | Nov 20 | Nov 27 | Dec 1 | Dec 4 | Dec 8 | Dec 11 | Dec 15 | Dec 19 | Dec 25 |
| 20°F | Nov 30 | Dec 6 | Dec 10 | Dec 15 | Dec 20 | Dec 25 | Dec 30 | Jan 6 | Jan 26 |
| 16°F | Dec 3 | Dec 12 | Dec 17 | Dec 24 | Dec 29 | Jan 2 | Jan 6 | Jan 12 | Jan 23 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Sedona, Az, about 8.2 miles away@if(!empty($station['elevation_ft'])), at 4,220 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in Village of Oak Creek (Big Park), AZ?
On average, the last spring frost (32°F) around Village of Oak Creek (Big Park), AZ is about Apr 1. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 6.
When is the first frost in the fall?
The first fall frost around Village of Oak Creek (Big Park), AZ typically arrives about Nov 17. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Apr 1 on average, or Mar 6 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 229 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 86351 Planting calendar → Arizona frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026