Guangzhou, Guangdong, China

Frost dates for Guangzhou

The full distribution rather than a single date. Every figure below is a percentile of 30 years of daily minimum temperatures at this location, expressed as the date it fell on.

Median last spring frost

10 January

Half of years are later than this. Not a planting date.

Median first autumn frost

23 December

The far end of the outdoor season.

Frost-free season

348 days

Between those two dates in a median year.

Last and first frost by severity

Read a row as: in this fraction of years, the last frost of spring had already happened by this date. The 90% column is the cautious planting date; the 10% column is the gamble.

Light frost — nights at or below 0°C (32°F). Air temperature reaches freezing. Kills basil, beans and unhardened tomatoes; hardy crops shrug it off.
Frost	1 year in 10	Median	9 years in 10	Earliest	Latest
Last of spring	3 Jan	10 Jan	31 Jan	1 Jan	6 Feb
First of autumn	19 Dec	23 Dec	30 Dec	17 Dec	1 Jan
Frost-free days	361	348	322	19 of 30 years saw none at all

Moderate frost — nights at or below -2.2°C (28°F). Damages half-hardy plants and most blossom. This is the threshold that decides a fruit crop.
Frost	1 year in 10	Median	9 years in 10	Earliest	Latest
Last of spring	—	—	—	—	—
First of autumn	18 Dec	20 Dec	22 Dec	17 Dec	23 Dec
Frost-free days	—	—	—	28 of 30 years saw none at all

Hard frost — nights at or below -4.4°C (24.1°F). Ground freezes and even hardy crops check their growth. Effectively the end of the outdoor year.
Frost	1 year in 10	Median	9 years in 10	Earliest	Latest
Last of spring	—	—	—	—	—
First of autumn	—	—	—	—	—
Frost-free days	—	—	—	30 of 30 years saw none at all

Dates in the southern hemisphere are computed on a growing year that starts in July, which is why "last of spring" falls where it should rather than in the middle of the calendar.

Chance of frost, week by week

Chance of at least one air frost during each week of the year, measured across the full record. The flat stretch in the middle is your frost-free season.

Temperature through the year

Mean monthly temperature across the record. Months shown in blue average at least one air frost.

Monthly means and average number of frost nights.
Month	Mean low	Mean high	Frost nights
January	8.9°C	20.9°C	0.2
February	11.4°C	23.1°C	0
March	15.3°C	26.5°C	0
April	19.4°C	29.3°C	0
May	22.7°C	30.6°C	0
June	25.1°C	31°C	0
July	25.5°C	31.7°C	0
August	25.3°C	31.6°C	0
September	23.5°C	30.8°C	0
October	19.4°C	29°C	0
November	14.8°C	26.3°C	0
December	9.4°C	21.7°C	0.3

Turn these dates into a planting calendar →

Nearby

Compare with places close by

Foshan Zone 10a 16 km Last frost 10 Jan First 23 Dec Dongguan Zone 10a 52 km Last frost 18 Jan First 20 Dec Jiangmen Zone 10b 62 km Last frost 25 Jan First 20 Dec Zhongshan Zone 10b 67 km Last frost 25 Jan First 20 Dec Qingyuan Zone 10a 69 km Last frost 21 Jan First 22 Dec Zhaoqing Zone 10a 81 km Last frost 29 Jan First 27 Dec Bao'an Zone 11a 90 km No reliable frost Zhuhai Zone 11a 99 km No reliable frost