The climate of Casper (Wyoming
- United States of America)
Casper is a large city located centrally in the state of Wyoming.
Casper is located in Natrona County on the banks of the North Platte
River. The city is located at the foot of the Casper Mountain in the
northern part of the Laramie Mountain Range. Casper is a good example
of a boom town. Many of these cities could be found in this region at
the beginning of the 1900s. After the Salt Creek Oil Field was
discovered population figures rapidly increased. Nowadays uranium is
mined here as well as coal.
Casper has a cold steppe climate influenced by the Laramie Mountain
Range. Because the city is located on the leeward side temperatures
are slightly higher here than in most parts of Wyoming. During the
summer temperatures may reach tropical values. However, during the
evening temperatures rapidly drop. Winters are cold. During the winter
longer periods with subzero temperatures during the night are not
uncommon. Average annual precipitation figures are low.
Climate information
The figures below are based on long term weather and climate records.
They are an average for Casper:
average maximum
temperature (°C)
average
minimum
temperature (°C)
average
hours of sunshine
per day
average days with
precipitation
per month
average
mm precipitation
per month
average
sea
temperature (°C)
January
1
-11
6
7
n/a
February
4
-9
7
8
n/a
March
8
-6
8
9
n/a
April
14
-1
9
10
n/a
May
20
3
9
11
n/a
June
26
8
11
9
n/a
July
31
12
11
9
n/a
August
30
10
10
8
n/a
September
24
5
9
7
n/a
October
17
0
7
6
n/a
November
8
-5
6
7
n/a
December
2
-10
5
8
n/a
= 0-5 mm ●
= 6-30 mm ●
= 31-60 mm ●
= 61-100 mm ●
= 101-200 mm ●
=
over 200 mm = 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches
More climate information
Climate figures are very useful but don’t present a general impression
of the climate and the eventual weather circumstances within a certain
period. The figures don’t always reflect the chance of wintry weather,
extreme heat or hurricanes. That is why we offer useful extra climate
information for each month of the year:
Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.
this site in Dutch
= 0-5 mm ●
= 6-30 mm ●
= 31-60 mm ●
= 61-100 mm ●
= 101-200 mm ●
=
over 200 mm
= 0-0.2 inches ● 
= 0.2-1.2 inches ● 
= 1.2-2.4 inches ● 
= 2.5-4 inches ● 
= 4.1-8 inches ● 
= over 8 inches
