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

Planting zone for 96015 — Canby, CA

ZIP code 96015 (Canby, Modoc County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is June 1 and the first fall frost September 16.

Where ZIP 96015 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.

Zone7a0 to 5 °F
Coldest night−17.8 to −15 °C
Last frostJun 1
First frostSep 16
2012 zone6a

Was 6a on the 2012 map — a full zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Canby, 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 in Canby, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostJune 1median — 50% chance of a later frost
Safe for tender plantsJune 20only 10% chance of frost after
First fall frostSeptember 16median — 10% chance by Sep 1
Growing season106 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 12 and returns around September 28.

From the NOAA station Canby 3 Sw, CA — 6 miles away, elevation 4,311 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 96015

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 20 – May 4
SpinachSow outdoors · Apr 20 – May 11
Broccoli, cabbageStart indoors · Mar 23 – Apr 6
Broccoli, cabbageTransplant · May 11 – May 25
Onion setsPlant outdoors · May 4 – May 18
PotatoesPlant outdoors · May 11 – May 25
LettuceSow outdoors · May 4 – May 18
Carrots, beetsSow outdoors · May 11 – May 25
TomatoesStart indoors · Apr 6 – Apr 20
TomatoesTransplant · Jun 8 – Jun 22
Peppers, eggplantStart indoors · Mar 23 – Apr 6
Peppers, eggplantTransplant · Jun 15 – Jun 29
BeansSow outdoors · Jun 8 – Jun 22
Sweet cornSow outdoors · Jun 8 – Jun 22
Cucumbers, squashSow outdoors · Jun 8 – Jun 22
Fall lettuce, spinachSow outdoors · Jul 22 – Aug 5
GarlicPlant cloves · Sep 2 – Oct 7
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Jun 1) and first fall frost (Sep 16) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 96015 came on Mar 9 — 23 days earlier than the 1991–2020 average (Apr 1).

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 Canby, CA

The soil mapped at the center of ZIP 96015 is Deven — very stony clay loam, well drained.

TextureVery stony clay loamholds water and nutrients; slow to drain and warm up
pH6.7neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Deven-Rock outcrop complex, 2 to 30 percent slopes.

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 96015; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Canby, CA

Summer high88 °Faverage high, July
Winter low20 °Faverage low, January
Hot days33days a year at 90 °F or more
Freezing nights192nights a year at 32 °F or less
Growing degree days1,875base 50 °F — the season’s usable heat
Longest day15 h 11 mindaylight on June 21
Shortest day9 h 10 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation11.7 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 42 °F, low 20 °F 42°20° JanFebruary: average high 48 °F, low 23 °F 48°23° FebMarch: average high 53 °F, low 27 °F 53°27° MarApril: average high 59 °F, low 30 °F 59°30° AprMay: average high 69 °F, low 37 °F 69°37° MayJune: average high 78 °F, low 43 °F 78°43° JunJuly: average high 88 °F, low 48 °F 88°48° JulAugust: average high 87 °F, low 45 °F 87°45° AugSeptember: average high 80 °F, low 38 °F 80°38° SepOctober: average high 67 °F, low 28 °F 67°28° OctNovember: average high 52 °F, low 23 °F 52°23° NovDecember: average high 41 °F, low 20 °F 41°20° Dec

Precipitation by month inches

0″1″2″January: 1.31 in precipitation 1.3 JanFebruary: 1.09 in precipitation 1.1 FebMarch: 1.38 in precipitation 1.4 MarApril: 1.47 in precipitation 1.5 AprMay: 1.26 in precipitation 1.3 MayJune: 0.70 in precipitation 0.7 JunJuly: 0.29 in precipitation 0.3 JulAugust: 0.27 in precipitation 0.3 AugSeptember: 0.35 in precipitation 0.3 SepOctober: 0.89 in precipitation 0.9 OctNovember: 1.20 in precipitation 1.2 NovDecember: 1.47 in precipitation 1.5 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Canby 3 Sw, CA (6 mi away); precipitation: Alturas Municipal Airport, CA (16 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

961016b
Alturas, CA · 19 mi
960547a
Lookout, CA · 21 mi
960067a
Adin, CA · 26 mi
961166b
Likely, CA · 28 mi
961086b
Davis Creek, CA · 31 mi
960097a
Bieber, CA · 32 mi
960687a
Nubieber, CA · 33 mi
961196b
Madeline, CA · 37 mi

California planting zones →

Questions about 96015

What planting zone is ZIP code 96015?

ZIP code 96015 (Canby, CA) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Canby, CA?

The median last spring frost (32 °F) near 96015 is June 1; after June 20 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Canby 3 Sw station.

When is the first frost in Canby, CA?

The median first fall frost near 96015 is September 16, giving a median frost-free growing season of 106 days.

When should I plant tomatoes in 96015?

Start tomato seeds indoors around Apr 6 – Apr 20 and set transplants outside around Jun 8 – Jun 22, one to three weeks after the median last frost.

How much rain and snow does 96015 get?

About 11.7 inches of precipitation a year (NOAA 1991–2020 normals, Alturas Municipal Airport station).

How hot do summers get in Canby, CA?

The average high peaks at 88 °F in July, with about 33 days a year at 90 °F or more.

What kind of soil does 96015 have?

The USDA soil survey maps Deven at the center of ZIP 96015: very stony clay loam, well drained, pH about 6.7 (neutral).

Did spring come early in Canby, CA in 2026?

Spring leaf-out near 96015 came on Mar 9 in 2026, 23 days earlier than the 1991–2020 average (Apr 1), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Canby, CA?

Long-day onions: the longest day near 96015 is 15 h 11 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 96015 change?

Yes. The 2012 USDA map put 96015 in zone 6a; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.