Chenggu, Shaanxi Weather by Month and Climate Averages

How much rain does Chenggu get?

Chenggu gets 838 mm of precipitation in an average year, spread over about 112 days with measurable rain. That is more rainy days than 62% of China.

July is the wettest month, with 146 mm. January is the driest, with 7 mm. September has the most rainy days, about 13.

The longest dry spell in the last five years lasted 52 days, to January 23, 2025.

Chenggu weather by month

Chenggu weather in January

In January, Chenggu averages a high of 8°C and a low of 0°C. It gets 7 mm of precipitation over about 4 rainy days. The sun is out about 41% of daylight hours. The January record high is 21°C (2002) and the record low is -8°C (2016).

Chenggu weather in February

In February, Chenggu averages a high of 11°C and a low of 3°C. It gets 12 mm of precipitation over about 5 rainy days. The sun is out about 34% of daylight hours. The February record high is 23°C (2021) and the record low is -6°C (1980).

Chenggu weather in March

In March, Chenggu averages a high of 16°C and a low of 7°C. It gets 28 mm of precipitation over about 8 rainy days. The sun is out about 32% of daylight hours. The March record high is 31°C (2025) and the record low is -4°C (1986).

Chenggu weather in April

In April, Chenggu averages a high of 22°C and a low of 12°C. It gets 59 mm of precipitation over about 9 rainy days. The sun is out about 28% of daylight hours. The April record high is 34°C (2011) and the record low is 0°C (1980). April is one of the most comfortable months to visit.

Chenggu weather in May

In May, Chenggu averages a high of 26°C and a low of 16°C. It gets 91 mm of precipitation over about 12 rainy days. The sun is out about 31% of daylight hours. The May record high is 37°C (2025) and the record low is 6°C (1986). May is one of the most comfortable months to visit.

Chenggu weather in June

In June, Chenggu averages a high of 29°C and a low of 20°C. It gets 105 mm of precipitation over about 12 rainy days. The sun is out about 29% of daylight hours. The June record high is 38°C (2025) and the record low is 10°C (1980).

Chenggu weather in July

In July, Chenggu averages a high of 31°C and a low of 22°C. It gets 146 mm of precipitation over about 12 rainy days. The sun is out about 32% of daylight hours. The July record high is 41°C (2025) and the record low is 15°C (1973).

Chenggu weather in August

In August, Chenggu averages a high of 30°C and a low of 22°C. It gets 123 mm of precipitation over about 11 rainy days. The sun is out about 32% of daylight hours. The August record high is 41°C (2025) and the record low is 14°C (1977).

Chenggu weather in September

In September, Chenggu averages a high of 25°C and a low of 18°C. It gets 146 mm of precipitation over about 13 rainy days. The sun is out about 32% of daylight hours. The September record high is 38°C (2024) and the record low is 9°C (1971). September is one of the most comfortable months to visit.

Chenggu weather in October

In October, Chenggu averages a high of 19°C and a low of 13°C. It gets 79 mm of precipitation over about 12 rainy days. The sun is out about 25% of daylight hours. The October record high is 30°C (2021) and the record low is -1°C (1986). October is one of the most comfortable months to visit.

Chenggu weather in November

In November, Chenggu averages a high of 13°C and a low of 7°C. It gets 34 mm of precipitation over about 8 rainy days. The sun is out about 36% of daylight hours. The November record high is 25°C (1979) and the record low is -4°C (1975).

Chenggu weather in December

In December, Chenggu averages a high of 8°C and a low of 1°C. It gets 8 mm of precipitation over about 5 rainy days. The sun is out about 45% of daylight hours. The December record high is 18°C (2010) and the record low is -10°C (1991).

Sunshine, humidity and wind in Chenggu

December is the sunniest month in Chenggu, with sunshine about 45% of daylight hours. October is the cloudiest, at 25%. Over the year the sun shines about 33% of daylight hours. Chenggu is cloudier than 84% of China.

Humidity peaks in October at 86% and is lowest in March at 70%.

Chenggu has about 30 days a year above 32°C. Chenggu is hotter than 51% of China.

First and last freeze in Chenggu

The first fall freeze in Chenggu typically comes around November 29, and the last spring freeze around February 23. That leaves a frost-free growing season of about 279 days.

Chenggu weather records

The hottest temperature on record at the Chenggu station is 41°C, on July 16, 2025. The coldest is -10°C, on December 28, 1991.

The wettest day on record brought 119 mm of rain, on July 21, 2008.

62 all-time records have been set at the station since 1970.

The annual mean temperature has changed by +0.4°C per decade since 1970.

The best time to visit Chenggu

The most comfortable time to visit is typically April to May and September to October, when daytime highs sit near 23°C.

Winter (December–February) is chilly, with average highs around 9°C and lows near 1°C.

Spring (March–May) is warm, with average highs around 21°C and lows near 11°C.

Summer (June–August) is hot, with average highs around 30°C and lows near 21°C. It can feel humid.

Autumn (September–November) is mild, with average highs around 19°C and lows near 12°C.

Chenggu climate questions

How much rain does Chenggu get?

Chenggu gets 838 mm of precipitation in an average year, over about 112 rainy days.

What is the wettest month in Chenggu?

July is the wettest month in Chenggu, with 146 mm. January is the driest, with 7 mm.

How many rainy days does Chenggu have a year?

Chenggu has about 112 days with measurable rain in an average year. September has the most, about 13.

What is the hottest month in Chenggu?

July is the warmest month in Chenggu, with an average high of 31°C.

What is the coldest month in Chenggu?

January is the coldest month in Chenggu, with an average low of 0°C.

What is the record high temperature in Chenggu?

The record high at the Chenggu station is 41°C, set on July 16, 2025. The record low is -10°C, on December 28, 1991.

What is the sunniest month in Chenggu?

December is the sunniest month in Chenggu, with sunshine about 45% of daylight hours. October is the cloudiest.

When is the first frost in Chenggu?

The first fall freeze in Chenggu typically comes around November 29. The last spring freeze is around February 23.

What is the best time to visit Chenggu?

The most comfortable time to visit is typically April to May and September to October, when daytime highs sit near 23°C.