Qingdao, Shandong, China

Frost dates for Qingdao

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

9 March

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

Median first autumn frost

14 December

The far end of the outdoor season.

Frost-free season

280 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	23 Feb	9 Mar	20 Mar	19 Feb	25 Mar
First of autumn	1 Dec	14 Dec	28 Dec	26 Nov	30 Dec
Frost-free days	308	280	256	every year on record saw this

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	29 Jan	14 Feb	9 Mar	15 Jan	12 Mar
First of autumn	8 Dec	18 Dec	30 Dec	4 Dec	1 Jan
Frost-free days	335	307	274	every year on record saw this

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	22 Jan	8 Feb	15 Feb	9 Jan	20 Feb
First of autumn	19 Dec	26 Dec	31 Dec	16 Dec	31 Dec
Frost-free days	343	321	307	8 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	-0.4°C	3.7°C	16.7
February	0.4°C	4.9°C	12.2
March	3.4°C	8.8°C	2.9
April	8°C	13.6°C	0
May	13.6°C	18.9°C	0
June	18.9°C	23.2°C	0
July	23.3°C	26.6°C	0
August	24.4°C	27.7°C	0
September	20.7°C	24.8°C	0
October	15.2°C	19.8°C	0
November	8.7°C	13.2°C	0.1
December	2.4°C	6.4°C	7.2

Turn these dates into a planting calendar →

Nearby

Compare with places close by

Zhu Cheng City Zone 7b 88 km Last frost 31 Mar First 12 Nov Weifang Zone 7b 135 km Last frost 1 Apr First 12 Nov Yantai Zone 8b 183 km Last frost 27 Mar First 26 Nov Lianyungang Zone 8b 194 km Last frost 22 Mar First 25 Nov Linyi Zone 7b 215 km Last frost 30 Mar First 12 Nov Zibo Zone 7b 222 km Last frost 3 Apr First 7 Nov Dongying Zone 7b 229 km Last frost 3 Apr First 13 Nov Laiwu Zone 7a 245 km Last frost 4 Apr First 7 Nov