Baoding, Hebei, China

Frost dates for Baoding

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

1 April

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

Median first autumn frost

7 November

The far end of the outdoor season.

Frost-free season

220 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	22 Mar	1 Apr	13 Apr	14 Mar	27 Apr
First of autumn	25 Oct	7 Nov	15 Nov	14 Oct	20 Nov
Frost-free days	238	220	195	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	13 Mar	21 Mar	1 Apr	27 Feb	13 Apr
First of autumn	1 Nov	14 Nov	22 Nov	27 Oct	30 Nov
Frost-free days	255	238	214	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	23 Feb	10 Mar	22 Mar	17 Feb	24 Mar
First of autumn	8 Nov	22 Nov	30 Nov	28 Oct	6 Dec
Frost-free days	280	258	231	every year on record saw this

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	-8.1°C	2.5°C	31
February	-4.7°C	6.8°C	27.2
March	-0.1°C	15.1°C	17.1
April	6.8°C	23.3°C	1.3
May	13.8°C	30.2°C	0
June	19.7°C	34.3°C	0
July	22.6°C	34.5°C	0
August	21.3°C	32.3°C	0
September	15.6°C	28°C	0
October	7.6°C	20.8°C	0.6
November	-0.3°C	11.4°C	16.5
December	-6°C	4°C	30.7

Turn these dates into a planting calendar →

Nearby

Compare with places close by

Shijiazhuang Zone 7b 126 km Last frost 31 Mar First 9 Nov Beijing Zone 7a 140 km Last frost 8 Apr First 27 Oct Tianjin Zone 7a 151 km Last frost 7 Apr First 30 Oct Sanhe Zone 7a 185 km Last frost 8 Apr First 27 Oct Datong Zone 5b 231 km Last frost 5 May First 2 Oct Tangshan Zone 7a 249 km Last frost 8 Apr First 26 Oct