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.
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.
, 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.
, the temperature drops to around -25 °C (-13 °F) or below almost every year, and can sometimes drop below -30 °C (-22 °F).
The coldest 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).
, 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).
in which the temperature exceeds 30 °C (86 °F). The hottest 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).
. Here are the average temperatures.
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.