Day Street backyard

garden of yarnivore

San Francisco, CA, USA Autumn

All of yarnivore's gardens

Growing now

1 planting

Harvested

0 times this year

What's growing in my backyard in SF.

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Growing now

lemon

by yarnivore

Jobs to do in this garden

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Temperature

Experimental · new and might be flaky

This year is a little warmer than usual

The average air temperature since 1 January is 14.2 °C, which is 0.7 °C above the usual 13.5 °C for this date.

Air temperature each month, this year and usually

10.0 °C

20.0 °C

JanJ

FebF

MarM

AprA

MayM

JunJ

JulJ

AugA

SepS

OctO

NovN

DecD

Usual for the month
This year

Soil temperature each month, this year and usually

10.0 °C

20.0 °C

30.0 °C

JanJ

FebF

MarM

AprA

MayM

JunJ

JulJ

AugA

SepS

OctO

NovN

DecD

Usual for the month
This year

Warmest month

September

16.3 °C on average

Coldest month

January

10.1 °C on average

Soil this month

15.1 °C

mean this month, top 7 cm

Records in the last 30 years

Hottest day

36.5 °C

2 Sep 2017. This year: 29.7 °C

Coldest night

-0.9 °C

24 Dec 1998. This year: 5.2 °C

Warmest soil

28.7 °C

23 Jul 2006. This year: 24.1 °C

Coldest soil

2.1 °C

24 Dec 1998. This year: 8.3 °C

Show the monthly figures

Month	Air, usual	Air, this year	Soil, usual	Soil, this year
Jan	10.1 °C	11.1 °C	10.0 °C	10.6 °C
Feb	10.6 °C	12.2 °C	10.9 °C	12.2 °C
Mar	11.3 °C	14.7 °C	12.6 °C	16.5 °C
Apr	12.0 °C	13.6 °C	14.6 °C	15.7 °C
May	13.3 °C	13.6 °C	17.6 °C	17.1 °C
Jun	14.7 °C	14.5 °C	20.4 °C	18.9 °C
Jul	15.2 °C	14.5 °C	21.8 °C	18.6 °C
Aug	16.0 °C	15.5 °C	22.0 °C	19.0 °C
Sep	16.3 °C	16.4 °C	21.1 °C	19.2 °C
Oct	15.1 °C	15.8 °C	17.7 °C	17.3 °C
Nov	12.5 °C	14.7 °C	13.0 °C	15.1 °C
Dec	10.3 °C	–	10.0 °C	–

Experimental: this feature is new and might be flaky. These figures are from 25 km weather-model data, not readings from a station at your garden, so your own rain and temperatures can differ. Check your national weather service before relying on them.

Weather data by Open-Meteo.com (CC BY 4.0)

Frost

Experimental · new and might be flaky

Frost danger starts soon

The usual first frost is 5 Jan, in 52 days. It has come as early as 10 Dec.

The frost season

Frost danger

5 Jan – 15 Jan

DecD2026

JanJ2027

FebF

MarM

AprA

MayM

JunJ

JulJ

AugA

SepS

OctO

NovN

DecD

JanJ2028

FebF

Usual frost danger
Possible: as early or late as it has come

Usual last frost

15 Jan

has come as late as 24 Feb

Next frost danger starts

5 Jan

as early as 10 Dec, 417 days from now

Experimental: this feature is new and might be flaky. These dates are estimates from 25 km weather-model data, not readings from a station at your garden, so a cold spot can be colder. They may be wrong, so check your national weather service and ask local growers before relying on them.

Weather data by Open-Meteo.com (CC BY 4.0)