Ehrenberg, AZ frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 2 a year). Cover tender plants when frost is forecast.
How Ehrenberg compares
- In a typical year, frost nights in Ehrenberg fall between December 19 and January 4. In 1 year in 10 the first frost comes as early as December 5, or the last frost as late as February 10.
- Compared with Lake Havasu City, AZ, 99 km away, the last frost here is 1 day earlier than there.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 16 |
| 50% (median) | January 4 |
| 10% (safe for tender plants) | February 10 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 5 |
| 50% (median) | December 19 |
| 90% (late) | January 5 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Gardening where frost is rare
Ehrenberg, AZ only freezes on a few winter nights, so the usual "plant after the last frost" rule doesn't apply. Heat and rainfall decide the seasons instead:
- Cool-season crops (lettuce, broccoli, peas, carrots) grow best from fall through late winter.
- Warm-season crops (tomatoes, peppers, beans, squash) do best planted in late winter to spring, and again in late summer for a fall crop — midsummer heat can stop tomatoes setting fruit.
- Heat lovers (okra, sweet potatoes, melons) can be planted through spring and early summer.
About these dates
Based on 1991–2020 NOAA climate normals for the Ehrenberg 2 E, AZ weather station, 4 km away (elevation 466 ft (142 m)).
Frost dates near Ehrenberg
- Quartzsite Jan 28 · Dec 6
- Cibola Jan 25 · Dec 12
- Poston Jan 12 · Dec 19
- Bouse Feb 18 · Nov 28
- Parker Jan 12 · Dec 19
- Salome Mar 17 · Nov 19
- Lake Havasu City Jan 5 · Dec 29
- Yuma rare frost
- Roll Feb 13 · Dec 1
- Wenden Mar 4 · Nov 23
Frequently asked questions
When is the last frost in Ehrenberg, AZ?
The median last spring frost in Ehrenberg, AZ is January 4. There is still about a 10% chance of frost after February 10, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Ehrenberg, AZ?
The median first fall frost is December 19, with about a 10% chance of frost before December 5.
How long is the growing season in Ehrenberg, AZ?
About 349 days between the median last spring frost and first fall frost.
What planting zone is Ehrenberg, AZ?
Ehrenberg, AZ is in USDA hardiness zone 9b.