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Average weather, temperature, rainfall, sunshine hours
The climate of Kostroma is
continental (according to the Köppen classification, humid continental climate with warm summers - Dfb), with very cold winters and relatively warm summers.
Kostroma is a city of 270,000 inhabitants, the capital of the oblast of the same name, located in European Russia, at the confluence of the Kostroma and Volga rivers, at almost 58 degrees north latitude and 290 km northeast of Moscow.
Precipitation is not abundant, since it amounts to about 615 millimeters (24 inches) per year. As often happens in cold climates, the rainiest season is summer.
Winter, from November to March, is very cold: the average temperature in January is around -9 °C (16 °F). The sky is often cloudy, and light snow often falls.
The ground is usually covered in snow, although there may be periods when the temperature rises above freezing, usually only slightly, and rain, drizzle or rain mixed with snow can occur.
During
cold spells, the temperature drops to around -25 °C (-13 °F) or below almost every year, and can sometimes drop below -30 °C (-22 °F).
The record is -46.4 °C (-51.2 °F), set in January 1940.
The coldest month was January 1987, with a daily average of -22.1 °C (-7.8 °F).
On the other hand, in the exceptionally mild winter of 2020, the daily average from December to February was -1.7 °C (28.9 °F).
Summer, from June to August, is very mild or pleasantly warm, with an acceptable amount of sunshine, but also with fairly frequent rains and thunderstorms. The average in July is 19 °C (66 °F).
Sometimes there can be
hot periods in which the temperature exceeds 30 °C (86 °F). The record is 37.3 °C (99.1 °F), set in August 1936. In the exceptionally hot summer of 2010, temperatures reached 37.1 °C (98.9 °F) in both July and August, and the average maximum temperature in July was 31.4 °C (88.5 °F).
Kostroma - Climate data
In Kostroma, the
average temperature of the coldest month (January) is of -9.2 °C (15.4 °F), that of the warmest month (July) is of 19 °C (66.2 °F). Here are the average temperatures.
Kostroma - Average temperatures (1991-2018) |
| Month | Min | Max | Mean |
|---|
| January | -12.2 | -6.1 | -9.2 |
|---|
| February | -11.7 | -5.1 | -8.4 |
|---|
| March | -6.3 | 0.9 | -2.7 |
|---|
| April | 0.9 | 10.1 | 5.5 |
|---|
| May | 7.1 | 18.1 | 12.6 |
|---|
| June | 11.2 | 21.6 | 16.4 |
|---|
| July | 13.7 | 24.3 | 19 |
|---|
| August | 11.8 | 21.8 | 16.8 |
|---|
| September | 7.1 | 15.5 | 11.3 |
|---|
| October | 1.7 | 7.4 | 4.5 |
|---|
| November | -4.6 | -0.2 | -2.4 |
|---|
| December | -9.3 | -4.1 | -6.7 |
|---|
| Year | 0.9 | 8.8 | 4.8 |
|---|
amounts to 615 millimeters (24.2 inches) per year: so, it is at an intermediate level. It ranges from 27.7 mm (1.1 in) in the driest month (February) to 77.7 mm (3.1 in) in the wettest one (June). Here is the average precipitation.
Kostroma - Average precipitation| Month | Days |
|---|
| January | 39 | 11 |
|---|
| February | 28 | 7 |
|---|
| March | 30 | 8 |
|---|
| April | 36 | 8 |
|---|
| May | 50 | 9 |
|---|
| June | 78 | 10 |
|---|
| July | 70 | 9 |
|---|
| August | 74 | 10 |
|---|
| September | 57 | 9 |
|---|
| October | 64 | 11 |
|---|
| November | 49 | 10 |
|---|
| December | 41 | 11 |
|---|
| Year | 615 | 113 |
|---|
There are on average around 1745
sunshine hours per year. Here are the average hours of sunshine per day.
Kostroma - Sunshine hours| Month | Average | Total |
|---|
| January | 1 | 35 |
|---|
| February | 2.5 | 70 |
|---|
| March | 4.5 | 135 |
|---|
| April | 6.5 | 195 |
|---|
| May | 8.5 | 255 |
|---|
| June | 9.5 | 280 |
|---|
| July | 9 | 285 |
|---|
| August | 7.5 | 230 |
|---|
| September | 4.5 | 135 |
|---|
| October | 2 | 70 |
|---|
| November | 1 | 30 |
|---|
| December | 0.5 | 20 |
|---|
| Year | 4.8 | 1745 |
|---|
Kostroma - Weather by month
Based on the period 1991-2018
January, the coldest month of the year, is generally a freezing cold month. The average temperature is of
-9.2 °C, with a minimum of
-12.2 °C and a maximum of
-6.1 °C.
On the coldest nights of the month, the temperature usually drops to around
-27 °C. However, it dropped to
-39.1 °C in January 2017.
On the warmest days of the month, the temperature usually reaches around
2 °C. However, it reached
6.6 °C in January 2007.
Precipitation amounts to
39.4 mm, distributed over 11 days.
The day lasts on average 7 hours and 20 minutes. So the days are short.
There are on average 1 hours of sunshine per day. So, the sun shines 15% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is of
13.7 kph.
February is generally a freezing cold month. The average temperature is of -8.4 °C, with a minimum of -11.7 °C and a maximum of -5.1 °C.
On the coldest nights of the month, the temperature usually drops to around -25.5 °C. However, it dropped to -34.8 °C in February 2006.
On the warmest days of the month, the temperature usually reaches around 2 °C. However, it reached 6.3 °C in February 1998.
Precipitation amounts to 27.7 mm, distributed over 7 days.
The day lasts on average 9 hours and 25 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 26% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of 13.7 kph.
March is generally a very cold month. The average temperature is of -2.7 °C, with a minimum of -6.3 °C and a maximum of 0.9 °C.
On the coldest nights of the month, the temperature usually drops to around -16 °C. However, it dropped to -25.4 °C in March 2013.
On the warmest days of the month, the temperature usually reaches around 8 °C. However, it reached 17.9 °C in March 2007.
Precipitation amounts to 30.2 mm, distributed over 8 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of 13 kph.
April is generally a quite cold month. The average temperature is of 5.5 °C, with a minimum of 0.9 °C and a maximum of 10.1 °C.
On the coldest nights of the month, the temperature usually drops to around -7 °C. However, it dropped to -16.1 °C in April 1998.
On the warmest days of the month, the temperature usually reaches around 20.5 °C. However, it reached 26.5 °C in April 2000.
Precipitation amounts to 35.8 mm, distributed over 8 days.
The day lasts on average 14 hours and 25 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 68%.
The average wind speed is of 11.5 kph.
May is generally a mild month. The average temperature is of 12.6 °C, with a minimum of 7.1 °C and a maximum of 18.1 °C.
On the coldest nights of the month, the temperature usually drops to around 0 °C. However, it dropped to -3.5 °C in May 1999.
On the warmest days of the month, the temperature usually reaches around 26.5 °C. However, it reached 32.5 °C in May 2015.
Precipitation amounts to 50.4 mm, distributed over 9 days.
The day lasts on average 16 hours and 40 minutes. So the days are long.
There are on average 8.5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 64%.
The average wind speed is of 11.2 kph.
June is generally a very mild month. The average temperature is of 16.4 °C, with a minimum of 11.2 °C and a maximum of 21.6 °C.
On the coldest nights of the month, the temperature usually drops to around 4.5 °C. However, it dropped to -0.8 °C in June 2017.
On the warmest days of the month, the temperature usually reaches around 28.5 °C. However, it reached 32.9 °C in June 2013.
Precipitation amounts to 77.7 mm, distributed over 10 days.
The day lasts on average 18 hours and 0 minutes. So the days are very long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 9.5 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of 9.7 kph.
July, the warmest month of the year, is generally a warm month. The average temperature is of 19 °C, with a minimum of 13.7 °C and a maximum of 24.3 °C.
On the coldest nights of the month, the temperature usually drops to around 8 °C. However, it dropped to 3.2 °C in July 2015.
On the warmest days of the month, the temperature usually reaches around 30.5 °C. However, it reached 37.1 °C in July 2010.
Precipitation amounts to 70.2 mm, distributed over 9 days.
The day lasts on average 17 hours and 20 minutes. So the days are very long.
There are on average 9 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of 8.6 kph.
August is generally a very mild month. The average temperature is of 16.8 °C, with a minimum of 11.8 °C and a maximum of 21.8 °C.
On the coldest nights of the month, the temperature usually drops to around 5 °C. However, it dropped to 1.3 °C in August 2015.
On the warmest days of the month, the temperature usually reaches around 29 °C. However, it reached 37.1 °C in August 2010.
Precipitation amounts to 73.9 mm, distributed over 10 days.
The day lasts on average 15 hours and 10 minutes. So the days are long.
There are on average 7.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of 9 kph.
September is generally a mild month. The average temperature is of 11.3 °C, with a minimum of 7.1 °C and a maximum of 15.5 °C.
On the coldest nights of the month, the temperature usually drops to around -0.5 °C. However, it dropped to -5.8 °C in September 1996.
On the warmest days of the month, the temperature usually reaches around 24 °C. However, it reached 28.5 °C in September 1995.
Precipitation amounts to 57.4 mm, distributed over 9 days.
The day lasts on average 12 hours and 50 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 35% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of 10.1 kph.
October is generally a quite cold month. The average temperature is of 4.5 °C, with a minimum of 1.7 °C and a maximum of 7.4 °C.
On the coldest nights of the month, the temperature usually drops to around -6.5 °C. However, it dropped to -16.1 °C in October 2014.
On the warmest days of the month, the temperature usually reaches around 16 °C. However, it reached 22.9 °C in October 1999.
Precipitation amounts to 63.8 mm, distributed over 11 days.
The day lasts on average 10 hours and 20 minutes.
There are on average 2 hours of sunshine per day. So, the sun shines 21% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is of 12.6 kph.
November is generally a very cold month. The average temperature is of -2.4 °C, with a minimum of -4.6 °C and a maximum of -0.2 °C.
On the coldest nights of the month, the temperature usually drops to around -15.5 °C. However, it dropped to -26.8 °C in November 1992.
On the warmest days of the month, the temperature usually reaches around 7 °C. However, it reached 13.8 °C in November 2013.
Precipitation amounts to 48.9 mm, distributed over 10 days.
The day lasts on average 7 hours and 55 minutes. So the days are short.
There are on average 1 hours of sunshine per day. So, the sun shines 13% of the time.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is of 12.6 kph.
December is generally a freezing cold month. The average temperature is of -6.7 °C, with a minimum of -9.3 °C and a maximum of -4.1 °C.
On the coldest nights of the month, the temperature usually drops to around -23 °C. However, it dropped to -34.4 °C in December 1997.
On the warmest days of the month, the temperature usually reaches around 3 °C. However, it reached 9.4 °C in December 2008.
Precipitation amounts to 40.9 mm, distributed over 11 days.
The day lasts on average 6 hours and 35 minutes. So the days are short. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 0.5 hours of sunshine per day. So, the sun shines 11% of the time.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is of 13.7 kph.