Weather in Cheyenne

Planning your day in the city of Cheyenne? Check out the very latest weather data, forecasts, and useful charts right here in this section.

The climate in Cheyenne, USA, is characterised as dry continental, which means distinct seasons and significant temperature fluctuations throughout the year. One of the main climatic features of the city is the very low level of precipitation all year round.

Winters in Cheyenne are cold, with average temperatures below freezing, especially in January and February, when minimum values can drop to -6.9°C and -8.9°C respectively. Summers are warm and sunny, with average maximum temperatures of +28.6°C in July and +27.7°C in August. Spring and autumn are transitional seasons with moderate temperatures; in spring, particularly in May, there is a slight increase in the number of rainy days (up to 16), although the total amount of precipitation remains insignificant (3 mm).

It is important to note that Cheyenne receives an extremely small amount of precipitation throughout the year – averaging from 0 to 3 mm per month. This makes Cheyenne attractive for those who prefer dry weather, but it is worth being prepared for significant temperature changes not only between seasons but also throughout the day.

The climate in Cheyenne is characterised by significant annual temperature fluctuations. The hottest months are traditionally July, with an average temperature of +21.4°C and maximum values reaching +28.6°C, and August, where the average temperature is +20.6°C, and the daily maximum can reach +27.7°C. Conversely, the coldest months are February, with an average temperature of -3.4°C and minimum night frosts down to -8.9°C, and January, where the average temperature holds at -2.2°C, and the minimum can drop to -6.9°C.

The summer months in Cheyenne, especially July and August, offer warm and at times hot weather. Daytime temperatures often range from +25°C to almost +29°C, making this time pleasant for outdoor activities. However, it is worth paying attention to significant diurnal fluctuations: nights can be noticeably cooler. For example, in July, the difference between the average maximum (+28.6°C) and average minimum (+14.3°C) temperature is more than 14 degrees. A similar trend is observed in June and August, where the difference between daytime warmth and nighttime cool is also quite substantial.

The winter period in Cheyenne, covering December, January, and February, is characterised by frosty weather. Average temperatures during these months are below freezing, with frequent night frosts. In January and February, the thermometer can drop to -6.9°C and -8.9°C at night respectively. During the day, the air temperature may rise slightly above freezing, for example, to +2.5°C in January or +2.2°C in February, but overall winter remains cold. Diurnal temperature fluctuations are also present, although less pronounced than in summer; for instance, in December the difference between the average maximum (+4.5°C) and minimum (-4.9°C) is about 9 degrees.

Cheyenne observes pronounced seasonality in the distribution of precipitation throughout the year. The wettest month is May, when an average of 3 mm of precipitation falls and there are about 16 days with precipitation. This indicates that spring, especially its end, brings the greatest amount of moisture. Conversely, December stands out as the driest month, with minimal precipitation (0 mm) and only 5 days when it is possible.

A distinct peak in precipitation occurs in late spring and early summer. After May, June and July also demonstrate a relatively high frequency of precipitation, with 13 rainy days in each, although the total amount of precipitation decreases slightly (2 mm). Winter months (December, January, February) and early autumn (August, September) are characterised as drier periods, both in terms of the amount of falling precipitation and the number of days with it.

The nature of precipitation changes depending on the season. Given the average temperatures, it can be assumed that in the winter months (roughly from November to March, especially in January and February with temperatures significantly below freezing), precipitation most likely falls in the form of snow. During the rest of the year, from April to October, when temperatures are positive, precipitation mainly comes in the form of rain. The frequency of precipitation is highest in May, when rain or other types of precipitation may occur approximately every other day, while in the driest months, such as December, precipitation is a rarer phenomenon.

When planning a trip to Cheyenne, it is important to consider the changeable weather throughout the year and be prepared for temperature fluctuations. The key principle when packing your suitcase should be layering. Even in warm months, evenings can be cool, and in winter the temperature drops significantly below freezing. Regardless of the season, be sure to take comfortable walking shoes, as they will be useful for exploring the city.

In winter (December-February), Cheyenne is cold, with average temperatures dropping below freezing (from -0.2°C to -3.4°C), and night temperatures can reach -9°C. You will need a warm winter jacket, hat, gloves, scarf, and waterproof insulated shoes. Although the total amount of precipitation is small (0-1 mm), there can be up to 7 wet days per month, which may mean light snow. In summer (June-August), the weather is warm, with the average temperature hovering around 18-21°C, with highs up to 28°C. Pack light clothing, sunscreen, sunglasses, and a hat. However, do not forget a light jacket or sweater for evening walks and in case of summer rains – despite the small amount of precipitation (1-2 mm), there can be up to 13 rainy days in a month.

Spring (March-May) and autumn (September-November) are transitional periods. In spring, the temperature gradually rises from cool in March (average +1.1°C) to moderate in May (+11.2°C), while May can be quite wet (up to 16 days with precipitation). In autumn, on the contrary, it gets colder. For these seasons, a mid-season jacket (possibly windproof), sweaters, long and short-sleeved t-shirts are ideal. An umbrella or light raincoat will also not go amiss, especially in spring. In general, Cheyenne is characterised by small volumes of precipitation but regular wet days, so light protection from rain or snow will be useful almost all year round.