Kostroma, Kostroma Oblast Weather by Month and Climate Averages

How much rain does Kostroma get?

Kostroma gets 610 mm of precipitation in an average year, spread over about 171 days with measurable rain. That is more rainy days than 80% of Russia.

June is the wettest month, with 76 mm. February is the driest, with 29 mm. January has the most rainy days, about 21.

Kostroma weather by month

Kostroma weather in January

In January, Kostroma averages a high of -6°C and a low of -12°C. It gets 41 mm of precipitation over about 21 rainy days. The sun is out about 8% of daylight hours. The January record high is 7°C (2007) and the record low is -42°C (1987).

Kostroma weather in February

In February, Kostroma averages a high of -5°C and a low of -11°C. It gets 29 mm of precipitation over about 15 rainy days. The sun is out about 16% of daylight hours. The February record high is 7°C (2020) and the record low is -35°C (2006).

Kostroma weather in March

In March, Kostroma averages a high of 1°C and a low of -6°C. It gets 31 mm of precipitation over about 13 rainy days. The sun is out about 34% of daylight hours. The March record high is 18°C (2007) and the record low is -27°C (2021).

Kostroma weather in April

In April, Kostroma averages a high of 10°C and a low of 1°C. It gets 34 mm of precipitation over about 11 rainy days. The sun is out about 40% of daylight hours. The April record high is 27°C (2000) and the record low is -16°C (1998).

Kostroma weather in May

In May, Kostroma averages a high of 18°C and a low of 7°C. It gets 49 mm of precipitation over about 11 rainy days. The sun is out about 42% of daylight hours. The May record high is 32°C (2015) and the record low is -4°C (1978). May is one of the most comfortable months to visit.

Kostroma weather in June

In June, Kostroma averages a high of 22°C and a low of 11°C. It gets 76 mm of precipitation over about 13 rainy days. The sun is out about 53% of daylight hours. The June record high is 33°C (1999) and the record low is -1°C (2017).

Kostroma weather in July

In July, Kostroma averages a high of 24°C and a low of 14°C. It gets 72 mm of precipitation over about 12 rainy days. The sun is out about 46% of daylight hours. The July record high is 37°C (2010) and the record low is 3°C (2015). July is one of the most comfortable months to visit.

Kostroma weather in August

In August, Kostroma averages a high of 22°C and a low of 12°C. It gets 73 mm of precipitation over about 12 rainy days. The sun is out about 46% of daylight hours. The August record high is 37°C (2010) and the record low is 1°C (2015). August is one of the most comfortable months to visit.

Kostroma weather in September

In September, Kostroma averages a high of 16°C and a low of 7°C. It gets 58 mm of precipitation over about 12 rainy days. The sun is out about 33% of daylight hours. The September record high is 28°C (2002) and the record low is -6°C (1996).

Kostroma weather in October

In October, Kostroma averages a high of 7°C and a low of 2°C. It gets 60 mm of precipitation over about 15 rainy days. The sun is out about 19% of daylight hours. The October record high is 23°C (1999) and the record low is -16°C (2014).

Kostroma weather in November

In November, Kostroma averages a high of 0°C and a low of -4°C. It gets 49 mm of precipitation over about 16 rainy days. The sun is out about 9% of daylight hours. The November record high is 14°C (2013) and the record low is -29°C (1984).

Kostroma weather in December

In December, Kostroma averages a high of -4°C and a low of -9°C. It gets 40 mm of precipitation over about 19 rainy days. The sun is out about 9% of daylight hours. The December record high is 9°C (2008) and the record low is -44°C (1978).

Sunshine, humidity and wind in Kostroma

June is the sunniest month in Kostroma, with sunshine about 53% of daylight hours. January is the cloudiest, at 8%. Over the year the sun shines about 30% of daylight hours. Kostroma is cloudier than 65% of Russia.

Humidity peaks in December at 88% and is lowest in April at 60%.

Kostroma has about 5 days a year above 32°C. Kostroma is hotter than 66% of Russia.

First and last freeze in Kostroma

The first fall freeze in Kostroma typically comes around October 1, and the last spring freeze around May 2. That leaves a frost-free growing season of about 152 days.

Kostroma weather records

The hottest temperature on record at the Kostroma station is 37°C, on July 29, 2010. The coldest is -44°C, on December 31, 1978.

The wettest day on record brought 80 mm of rain, on June 28, 1997.

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

The annual mean temperature has changed by +0.3°C per decade since 1970.

The best time to visit Kostroma

The most comfortable time to visit is typically May and July to August, when daytime highs sit near 21°C.

Winter (December–February) is cold, with average highs around -5°C and lows near -11°C.

Spring (March–May) is chilly, with average highs around 10°C and lows near 1°C.

Summer (June–August) is warm, with average highs around 23°C and lows near 12°C. It can feel humid.

Autumn (September–November) is chilly, with average highs around 8°C and lows near 1°C.

Kostroma climate questions

How much rain does Kostroma get?

Kostroma gets 610 mm of precipitation in an average year, over about 171 rainy days.

What is the wettest month in Kostroma?

June is the wettest month in Kostroma, with 76 mm. February is the driest, with 29 mm.

How many rainy days does Kostroma have a year?

Kostroma has about 171 days with measurable rain in an average year. January has the most, about 21.

What is the hottest month in Kostroma?

July is the warmest month in Kostroma, with an average high of 24°C.

What is the coldest month in Kostroma?

January is the coldest month in Kostroma, with an average low of -12°C.

What is the record high temperature in Kostroma?

The record high at the Kostroma station is 37°C, set on July 29, 2010. The record low is -44°C, on December 31, 1978.

What is the sunniest month in Kostroma?

June is the sunniest month in Kostroma, with sunshine about 53% of daylight hours. January is the cloudiest.

When is the first frost in Kostroma?

The first fall freeze in Kostroma typically comes around October 1. The last spring freeze is around May 2.

What is the best time to visit Kostroma?

The most comfortable time to visit is typically May and July to August, when daytime highs sit near 21°C.