Cheyenne is a city of 65,000 inhabitants, located in central-western United States, in the state of Wyoming, of which it is the capital and the largest city, on a plateau 1,850 meters (6,070 feet) above sea level and at 41 degrees north latitude.
, often descends. Thanks to this wind, the temperature can exceed 15 °C (59 °F) even in the middle of winter.
On the other hand, for several months a year, cold winds can arrive from Canada.
The city's latitude, however, is not high, and the sun's rays at high altitudes are very strong.
between night and day, as well as rapid changes in weather and temperature, depending on the prevailing air mass.
in Cheyenne is not abundant: just 390 millimeters (15.5 inches) per year. Winter is the driest season, while the rainiest period goes from May to July, due to afternoon thunderstorms, sometimes accompanied by hail.
Although the climate is fairly dry, the period in which it can snow is long (generally from mid-October to late April), so the amount of
Cold spells can be intense, and accompanied by blizzard blasts. Generally, the temperature reaches -20 °C (-4 °F) every year, but sometimes it can reach -30 °C (-22 °F) or below. In recent decades, the coldest record is -33.3 °C (-27.9 °F), set in December 1990. In December 2022, the temperature dropped by 22 degrees Celsius (30 degrees Fahrenheit) in half an hour, going from 6 °C to -16 °C (43 °F to 3 °F) from 1:05 p.m. to 1:35 p.m.
, between night and day, there are almost 20 degrees Celsius of difference (and sometimes even more).
Given the high daily temperature range, even during the hottest periods, nights remain cool. Moreover, being that the humidity is low, the heat of day is bearable (but, as mentioned, the sun beats down hard).
During heat waves, temperatures can reach or exceed 35 °C (95 °F). The heat record is 37.8 °C (100 °F), set in late June 1954 and in July 2022.
, it can get cold at night and warm during the day. Although it can snow in April and October, the snow generally
often shines all year round, and shines for a total of 3,000 hours. In particular, the winter sunshine is remarkable.
. Here are the average temperatures.
January is generally a very cold month. The average temperature is of
-1.5 °C, with a minimum of
-7.5 °C and a maximum of
4.4 °C.
On the coldest nights of the month, the temperature usually drops to around
-21 °C. However, it dropped to
-28.3 °C in January 2009.
On the warmest days of the month, the temperature usually reaches around
14.5 °C. However, it reached
21.1 °C in January 2015.
Precipitation amounts to only
9 mm, distributed over 3 days.
The day lasts on average 9 hours and 35 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 52%.
The average wind speed is of
22.4 kph.
February is generally a very cold month. The average temperature is of
-1.4 °C, with a minimum of
-7.6 °C and a maximum of
4.8 °C.
On the coldest nights of the month, the temperature usually drops to around
-20 °C. However, it dropped to
-31.1 °C in February 2011.
On the warmest days of the month, the temperature usually reaches around
15.5 °C. However, it reached
20.6 °C in February 2017.
Precipitation amounts to
13.2 mm, distributed over 4 days.
The day lasts on average 10 hours and 40 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 54%.
The average wind speed is of
21.7 kph.
March is generally a cold month. However, there are remarkable differences between night and day. The average temperature is of
2.8 °C, with a minimum of
-3.8 °C and a maximum of
9.5 °C.
On the coldest nights of the month, the temperature usually drops to around
-14 °C. However, it dropped to
-26.7 °C in March 2019.
On the warmest days of the month, the temperature usually reaches around
20.5 °C. However, it reached
24.4 °C in March 2015.
Precipitation amounts to
24.3 mm, distributed over 5 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 51%.
The average wind speed is of
21.5 kph.
April is generally a quite cold month. However, there are remarkable differences between night and day. The average temperature is of
6 °C, with a minimum of
-0.6 °C and a maximum of
12.7 °C.
On the coldest nights of the month, the temperature usually drops to around
-8.5 °C. However, it dropped to
-17 °C in April 1997.
On the warmest days of the month, the temperature usually reaches around
24 °C. However, it reached
28.9 °C in April 2020.
Precipitation amounts to
45.4 mm, distributed over 7 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 52%.
The average wind speed is of
21.2 kph.
May is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of
11.2 °C, with a minimum of
4.5 °C and a maximum of
18 °C.
On the coldest nights of the month, the temperature usually drops to around
-3.5 °C. However, it dropped to
-12.8 °C in May 2013.
On the warmest days of the month, the temperature usually reaches around
28 °C. However, it reached
32.8 °C in May 2000.
Precipitation amounts to
62.1 mm, distributed over 9 days.
The day lasts on average 14 hours and 30 minutes. So the days are long.
There are on average 9.5 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 55%.
The average wind speed is of
18.7 kph.
June 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
9.7 °C and a maximum of
24.8 °C.
On the coldest nights of the month, the temperature usually drops to around
3.5 °C. However, it dropped to
-1.1 °C in June 2001.
On the warmest days of the month, the temperature usually reaches around
32.5 °C. However, it reached
37.2 °C in June 2018.
Precipitation amounts to
54.9 mm, distributed over 7 days.
The day lasts on average 15 hours and 5 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 10 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 49%.
The average wind speed is of
17.4 kph.
July, the warmest month of the year, is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
21.2 °C, with a minimum of
13.4 °C and a maximum of
28.9 °C.
On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
5 °C in July 1993.
On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
37 °C in July 2003.
Precipitation amounts to
53.5 mm, distributed over 7 days.
The day lasts on average 14 hours and 50 minutes. So the days are long.
There are on average 10 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 47%.
The average wind speed is of
15.8 kph.
August is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
20.1 °C, with a minimum of
12.4 °C and a maximum of
27.8 °C.
On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
2.8 °C in August 2016.
On the warmest days of the month, the temperature usually reaches around
33.5 °C. However, it reached
36.7 °C in August 2008.
Precipitation amounts to
38.6 mm, distributed over 6 days.
The day lasts on average 13 hours and 40 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 47%.
The average wind speed is of
15.6 kph.
September is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
15.3 °C, with a minimum of
7.7 °C and a maximum of
22.9 °C.
On the coldest nights of the month, the temperature usually drops to around
0 °C. However, it dropped to
-4.5 °C in September 1995.
On the warmest days of the month, the temperature usually reaches around
31.5 °C. However, it reached
35 °C in September 1995.
Precipitation amounts to
37.4 mm, distributed over 5 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 47%.
The average wind speed is of
16.5 kph.
October is generally a quite mild month. However, there are remarkable differences between night and day. The average temperature is of
8 °C, with a minimum of
1 °C and a maximum of
15.1 °C.
On the coldest nights of the month, the temperature usually drops to around
-8.5 °C. However, it dropped to
-18.3 °C in October 1991.
On the warmest days of the month, the temperature usually reaches around
26 °C. However, it reached
28.9 °C in October 2011.
Precipitation amounts to
25.4 mm, distributed over 5 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 51%.
The average wind speed is of
18.8 kph.
November is generally a cold month. The average temperature is of
2.2 °C, with a minimum of
-4.1 °C and a maximum of
8.6 °C.
On the coldest nights of the month, the temperature usually drops to around
-16 °C. However, it dropped to
-26.7 °C in November 1993.
On the warmest days of the month, the temperature usually reaches around
19.5 °C. However, it reached
23.9 °C in November 1999.
Precipitation amounts to
15.4 mm, distributed over 4 days.
The day lasts on average 9 hours and 50 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 52%.
The average wind speed is of
20.5 kph.
December, the coldest month of the year, is generally a very cold month. The average temperature is of
-1.8 °C, with a minimum of
-7.7 °C and a maximum of
4 °C.
On the coldest nights of the month, the temperature usually drops to around
-20 °C. However, it dropped to
-29 °C in December 2005.
On the warmest days of the month, the temperature usually reaches around
15 °C. However, it reached
18.9 °C in December 1998.
Precipitation amounts to
12.3 mm, distributed over 3 days.
The day lasts on average 9 hours and 20 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 5.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 53%.
The average wind speed is of
21.9 kph.