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When to plant in South Oroville, CA

Planting dates worked out from South Oroville's own frost records, not a generic zone chart.

Safe to plant out
Apr 11
1 year in 10 has a later frost
Average last frost
Feb 18
about a 50% chance of a later one
Average first fall frost
Dec 4
1 year in 10 by Nov 7
Frost-free days
289
median, 1991–2020

Station used: Oroville · 4.3 km away · station 52 m, town 57 m. How we match towns to stations

This season

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Planting dates for common crops

CropStart indoorsPlant out or sowHarvest from
Tomato Feb 14 – Feb 28 Apr 11 – Apr 25 Jun 5
Sweet pepper Jan 31 – Feb 14 Apr 11 – Apr 25 Jun 10
Lettuce (leaf) Dec 17 – Dec 24 Jan 21 – Feb 4 Mar 2
Peas — Jan 7 – Feb 4 Mar 3
Bush beans — Apr 4 – Apr 25 May 24
Carrot — Jan 28 – Mar 11 Mar 29
Beet — Jan 21 – Mar 4 Mar 12
Potato — Jan 28 – Feb 18 Apr 8
Kale Dec 10 – Dec 24 Jan 21 – Feb 4 Mar 5
Broccoli Dec 10 – Dec 24 Jan 21 – Feb 11 Mar 22
Cucumber Mar 14 – Mar 21 Apr 11 – Apr 25 May 31
Summer squash and zucchini Mar 14 – Mar 21 Apr 11 – Apr 25 May 26
Winter squash Mar 14 – Mar 21 Apr 11 – Apr 25 Jun 30
Sweet corn — Apr 4 – Apr 25 Jun 3
Onion (from sets) — Jan 21 – Feb 11 Apr 21
Garlic — Nov 17 – Dec 15 (fall) following summer
Spinach — Jan 7 – Feb 4 Feb 14
Basil Feb 28 – Mar 14 Apr 11 – Apr 25 Jun 7

Plan all 65 crops for South Oroville

South Oroville's weather over time

How the growing season has shifted here, year by year, from the station's own records.

Jan 1Feb 1Mar 1Apr 1May 1 1960197019801990200020102020
Each year's last spring frostLong-term trend
See the data as a table
YearLast spring frost
1954Mar 14
1955Apr 27
1956Mar 7
1957Mar 22
1958Mar 11
1959Jan 31
1960Mar 1
1961Mar 5
1962Feb 27
1963Jan 25
1964Mar 8
1965Feb 10
1966Mar 3
1967Jan 23
1968Jan 17
1969Mar 13
1970Jan 6
1971Mar 5
1972Mar 26
1973Jan 28
1974Feb 23
1975Feb 21
1983Jan 15
1985Mar 28
1987Jan 18
1991Apr 11
1992Jan 31
1993Jan 14
1994Feb 15
1995Mar 25
1997Mar 15
1998Jan 6
2002Mar 18
2004Jan 4
2006Feb 21
2010May 11
2011Apr 13
2012Mar 7
2013Feb 20
2015Jan 3
2016Jan 29
2017Jan 16
2018Mar 5
2019Feb 18
2020Feb 6
2021Jan 26
2022Feb 25

What this means for you: Since 1954, South Oroville's last spring frost has come about 2 days earlier per decade, on average. The frost-free season has grown by about 5 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.

Source: daily records from Oroville (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

OrovillePalermoThermalitoOroville EastBiggsGridley