Mary is a city of 125,000 inhabitants, located in the south-east of Turkmenistan, in the province of the same name, on the banks of the river
(from which the weather data are taken), and nearby the ruins of the ancient city of
is decidedly scarce, amounting to 160 millimeters (6.3 inches) per year. In summer it basically never rains.
, from December to February, is quite mild during the day, though with cold nights, during which the temperature often drops below freezing. The average temperature in January is around 5 °C (41 °F).
There are quite mild periods, during which the temperature can reach or exceed 15 °C (59 °F), especially in December and February, and more rarely in January.
Due to the arid climate, both rain and snowfall are quite rare, and in any case generally not abundant.
, the temperature drops once every few years to -10 °C (14 °F), and more rarely to -15 °C (5 °F) or below. The coldest record is -26 °C (-14.8 °F), set in January 1969. That winter, the daily average was -5.6 °C (21.9 °F) in January and -5.4 °C (22.3 °F) in February.
, from June to August, is very hot and sunny. The average in July is 31 °C (88 °F).
On the hottest days, the temperature exceeds 42 °C (107.5 °F). The heat record is 46.6 °C (115.9 °F), set in July 2021.
. Here are the average temperatures.
January, the coldest month of the year, is generally a quite cold month. The average temperature is of
5 °C, with a minimum of
0 °C and a maximum of
10.1 °C.
On the coldest nights of the month, the temperature usually drops to around
-6.5 °C. However, it dropped to
-22.2 °C in January 2008.
On the warmest days of the month, the temperature usually reaches around
21 °C. However, it reached
26 °C in January 2007.
Precipitation amounts to
22 mm, distributed over 7 days.
The day lasts on average 9 hours and 55 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 74%. Hence, the air is normally humid.
February is generally a quite mild month. The average temperature is of
7 °C, with a minimum of
1.5 °C and a maximum of
12.6 °C.
On the coldest nights of the month, the temperature usually drops to around
-6.5 °C. However, it dropped to
-17.5 °C in February 2014.
On the warmest days of the month, the temperature usually reaches around
23.5 °C. However, it reached
30.1 °C in February 2016.
Precipitation amounts to
29 mm, distributed over 6 days.
The day lasts on average 10 hours and 50 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 67%.
March is generally a mild month. The average temperature is of
12.5 °C, with a minimum of
6.4 °C and a maximum of
18.6 °C.
On the coldest nights of the month, the temperature usually drops to around
-1.5 °C. However, it dropped to
-6.3 °C in March 1998.
On the warmest days of the month, the temperature usually reaches around
30 °C. However, it reached
36 °C in March 2010.
Precipitation amounts to
34 mm, distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 58%.
April is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
18.8 °C, with a minimum of
12 °C and a maximum of
25.6 °C.
On the coldest nights of the month, the temperature usually drops to around
4 °C. However, it dropped to
0 °C in April 1994.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
40.1 °C in April 1994.
Precipitation amounts to
24 mm, distributed over 4 days.
The day lasts on average 13 hours and 10 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 52%.
May is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
24.6 °C, with a minimum of
17.3 °C and a maximum of
32 °C.
On the coldest nights of the month, the temperature usually drops to around
10.5 °C. However, it dropped to
3.5 °C in May 1992.
On the warmest days of the month, the temperature usually reaches around
39.5 °C. However, it reached
42.2 °C in May 1998.
Precipitation amounts to
10 mm, distributed over 2 days.
The day lasts on average 14 hours and 10 minutes. So the days are long.
There are on average 9.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 41%.
June is generally a very hot month. However, there are remarkable differences between night and day. The average temperature is of
29.2 °C, with a minimum of
21.6 °C and a maximum of
36.8 °C.
On the coldest nights of the month, the temperature usually drops to around
16.5 °C. However, it dropped to
10.2 °C in June 2000.
On the warmest days of the month, the temperature usually reaches around
42 °C. However, it reached
45.8 °C in June 2016.
Precipitation amounts to only
0.9 mm, distributed over 0 days.
The day lasts on average 14 hours and 40 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 11 hours of sunshine per day. So, the sun shines 77% of the time.
The average humidity is 32%. Hence, the air is normally dry.
July, the hottest month of the year, is generally a very hot month. However, there are remarkable differences between night and day. The average temperature is of
31.2 °C, with a minimum of
23.7 °C and a maximum of
38.6 °C.
On the coldest nights of the month, the temperature usually drops to around
19 °C. However, it dropped to
15.5 °C in July 2006.
On the warmest days of the month, the temperature usually reaches around
43.5 °C. However, it reached
46.5 °C in July 2019.
Precipitation amounts to only
0 mm, so on average it never rains in the whole month.
The day lasts on average 14 hours and 30 minutes. So the days are long.
There are on average 11.5 hours of sunshine per day. So, the sun shines 80% of the time.
The average humidity is 30%. Hence, the air is normally dry.
August is generally a very hot month. However, there are remarkable differences between night and day. The average temperature is of
29 °C, with a minimum of
21.1 °C and a maximum of
37 °C.
On the coldest nights of the month, the temperature usually drops to around
15 °C. However, it dropped to
10.2 °C in August 1996.
On the warmest days of the month, the temperature usually reaches around
42 °C. However, it reached
44.8 °C in August 2002.
Precipitation amounts to only
0.3 mm, distributed over 0 days.
The day lasts on average 13 hours and 35 minutes.
There are on average 11 hours of sunshine per day. So, the sun shines 82% of the time.
The average humidity is 29%. Hence, the air is normally dry.
September is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
23.5 °C, with a minimum of
15.2 °C and a maximum of
31.9 °C.
On the coldest nights of the month, the temperature usually drops to around
9 °C. However, it dropped to
3.8 °C in September 2020.
On the warmest days of the month, the temperature usually reaches around
38.5 °C. However, it reached
44 °C in September 1996.
Precipitation amounts to only
0.5 mm, distributed over 0 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 35%. Hence, the air is normally dry.
October is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
17.2 °C, with a minimum of
9.3 °C and a maximum of
25.1 °C.
On the coldest nights of the month, the temperature usually drops to around
2 °C. However, it dropped to
-2 °C in October 1995.
On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
41 °C in October 2015.
Precipitation amounts to only
6 mm, distributed over 2 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 46%.
November is generally a mild month. The average temperature is of
10.5 °C, with a minimum of
4.2 °C and a maximum of
16.8 °C.
On the coldest nights of the month, the temperature usually drops to around
-3.5 °C. However, it dropped to
-11.5 °C in November 2016.
On the warmest days of the month, the temperature usually reaches around
28 °C. However, it reached
34.8 °C in November 2009.
Precipitation amounts to
16 mm, distributed over 5 days.
The day lasts on average 10 hours and 10 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 63%.
December is generally a quite cold month. The average temperature is of
6 °C, with a minimum of
1 °C and a maximum of
11.1 °C.
On the coldest nights of the month, the temperature usually drops to around
-7 °C. However, it dropped to
-17.8 °C in December 2012.
On the warmest days of the month, the temperature usually reaches around
22 °C. However, it reached
28.7 °C in December 2016.
Precipitation amounts to
15 mm, distributed over 6 days.
The day lasts on average 9 hours and 35 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 4 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 73%. Hence, the air is normally humid.