Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 92222 — Bard, CA

ZIP code 92222 (Bard, Imperial County) is in USDA zone 10a: the coldest winter night averages 30 to 35 °F.

Where ZIP 92222 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone10a30 to 35 °F
Coldest night−1.1 to 1.7 °C
Last frostrare
First frostrare
2012 zone10a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 10a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Bard, CA…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates

A 32 °F frost doesn't happen here in most winters. At the nearest station (NOAA station Yuma Quartermaster Depot, AZ — 6 miles away, elevation 161 ft) the median growing season is 362 days. When frost does come, it is a midwinter night or two; cover tender plants when a freeze is forecast.

Frost data: NOAA NCEI U.S. Climate Normals 1991–2020.

When spring arrived in 2026

In 2026, spring leaf-out near 92222 came on Jan 18 — about the same time as the 1991–2020 average (Jan 20).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Soil in Bard, CA

The soil mapped at the center of ZIP 92222 is Kofa — clay, well drained.

TextureClayholds water and nutrients; slow to drain and warm up
pH8.2alkaline; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.75%low — add compost
Hydrologic groupCwater soaks in slowly
Farmland classPrime farmland if irrigatedUSDA classification

Map unit: Kofa clay.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 92222; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Bard, CA

Summer high109 °Faverage high, July
Winter low44 °Faverage low, December
Hot days195days a year at 90 °F or more
Freezing nights4nights a year at 32 °F or less
Growing degree days8,984base 50 °F — the season’s usable heat
Longest day14 h 19 mindaylight on June 21
Shortest day9 h 59 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation3.2 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°90°100°110°120°32 °FJanuary: average high 71 °F, low 45 °F 71°45° JanFebruary: average high 75 °F, low 47 °F 75°47° FebMarch: average high 82 °F, low 52 °F 82°52° MarApril: average high 89 °F, low 56 °F 89°56° AprMay: average high 97 °F, low 62 °F 97°62° MayJune: average high 106 °F, low 69 °F 106°69° JunJuly: average high 109 °F, low 76 °F 109°76° JulAugust: average high 109 °F, low 77 °F 109°77° AugSeptember: average high 104 °F, low 69 °F 104°69° SepOctober: average high 93 °F, low 59 °F 93°59° OctNovember: average high 79 °F, low 50 °F 79°50° NovDecember: average high 69 °F, low 44 °F 69°44° Dec

Precipitation by month inches

0″1″January: 0.41 in precipitation 0.4 JanFebruary: 0.32 in precipitation 0.3 FebMarch: 0.35 in precipitation 0.3 MarApril: 0.13 in precipitation 0.1 AprMay: 0.07 in precipitation 0.1 MayJune: 0.01 in precipitation 0.0 JunJuly: 0.31 in precipitation 0.3 JulAugust: 0.25 in precipitation 0.3 AugSeptember: 0.11 in precipitation 0.1 SepOctober: 0.22 in precipitation 0.2 OctNovember: 0.25 in precipitation 0.3 NovDecember: 0.76 in precipitation 0.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Yuma Quartermaster Depot, AZ (6 mi away); precipitation: Yuma Quartermaster Depot, AZ (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

1 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

8536910a
Yuma, AZ · 6 mi
8536410a
Yuma, AZ · 8 mi
8536710a
Yuma, AZ · 12 mi
8536610a
Yuma, AZ · 13 mi
9228310a
Winterhaven, CA · 15 mi
8535010a
Somerton, AZ · 18 mi
8533610a
Gadsden, AZ · 22 mi
853569b
Wellton, AZ · 22 mi

California planting zones →

Questions about 92222

What planting zone is ZIP code 92222?

ZIP code 92222 (Bard, CA) is in USDA hardiness zone 10a on the 2023 map: the coldest night of an average winter reaches 30 to 35 °F (−1.1 to 1.7 °C).

How much rain and snow does 92222 get?

About 3.2 inches of precipitation a year (NOAA 1991–2020 normals, Yuma Quartermaster Depot station).

How hot do summers get in Bard, CA?

The average high peaks at 109 °F in July, with about 195 days a year at 90 °F or more.

What kind of soil does 92222 have?

The USDA soil survey maps Kofa at the center of ZIP 92222: clay, well drained, pH about 8.2 (alkaline).

Did spring come early in Bard, CA in 2026?

Spring leaf-out near 92222 came on Jan 18 in 2026, about the same as the 1991–2020 average (Jan 20), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Bard, CA?

Intermediate onions: the longest day near 92222 is 14 h 19 min, so day-neutral types bulb best; long-day varieties may not bulb fully.