Bengbu, Anhui, China

Frost dates for Bengbu

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

19 March

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

Median first autumn frost

19 November

The far end of the outdoor season.

Frost-free season

245 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	6 Mar	19 Mar	2 Apr	27 Feb	15 Apr
First of autumn	8 Nov	19 Nov	28 Nov	2 Nov	7 Dec
Frost-free days	267	245	220	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	27 Feb	9 Mar	22 Mar	18 Feb	26 Mar
First of autumn	13 Nov	27 Nov	4 Dec	3 Nov	9 Dec
Frost-free days	280	264	236	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	9 Feb	23 Feb	13 Mar	28 Jan	22 Mar
First of autumn	24 Nov	7 Dec	18 Dec	17 Nov	31 Dec
Frost-free days	313	288	256	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	-3°C	7.3°C	26.5
February	-1°C	10.6°C	17.8
March	3.5°C	16.6°C	5.9
April	9.4°C	23°C	0.1
May	15.2°C	28.4°C	0
June	20.3°C	31.8°C	0
July	24.1°C	32.5°C	0
August	23.4°C	32.1°C	0
September	18.1°C	28.7°C	0
October	11.5°C	23.2°C	0
November	4.5°C	16.3°C	4.8
December	-1.6°C	9.3°C	21.6

Turn these dates into a planting calendar →

Nearby

Compare with places close by

Huainan Zone 8b 49 km Last frost 16 Mar First 23 Nov Suzhou Zone 8a 85 km Last frost 21 Mar First 17 Nov Chuzhou Zone 8b 112 km Last frost 20 Mar First 20 Nov Suicheng Zone 8a 119 km Last frost 25 Mar First 15 Nov Hefei Zone 8b 120 km Last frost 13 Mar First 24 Nov Huaibei Zone 8a 126 km Last frost 23 Mar First 15 Nov Tongshan Zone 8a 139 km Last frost 23 Mar First 15 Nov Xuzhou Zone 8a 141 km Last frost 24 Mar First 16 Nov