World Resorts USA Casper Weather

Casper weather in January

Weather in Casper: January

Average day temperature: 28.3°F
Average night temperature: 17.8°F
Number of sunny days: 14 days
Day length: 9.1 - 9.9 hours
Number of rainy days: 0 days
Precipitation totals: 0.4 in.

Air temperature in January, °F

Show year:
2025
2024
2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
-18
-9
0
9
18
27
36
45
54
Day temperature   
Night temperature

The highest day temperature during January of 2025 was 38°F. At the same time the lowest night temperature was -9°F. Daily and nightly averages during January were 26.5°F and 13.4°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
45%
32%
23%

Mostly all days in January are sunny but cloudy days are also possible.

Precipitation total in January, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.2
0.3
0.5
0.7
0.8
1.0
1.2

Precipitation total value in Casper in January is 0.4 in. Other months of the year show relatively similar values.

Wind speed in January, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.3
4.5
6.8
9.0
11.3
13.5
15.8
13.1
12.0
9.4
9.4
8.9
8.6
9.8
10.5
11.2
11.6
12.3
13.1
12.0
9.4
9.4
8.9
8.6
9.8
10.5
11.2
11.6
12.3
11.4

The average wind speed value in January is 11.4 mph

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.0
4.1
6.1
8.2
10.2
12.3
14.3
16.4
6.1
6.5
7.9
10.3
10.9
11.9
11.4
9.1
8.2
7.1
6.5
6.1
6.5
7.9
10.3
10.9
11.9
11.4
9.1
8.2
7.1
6.5
5.8

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 5.8.

Best time for vacation in Casper

Sunniest months:
July 25 days
August 23 days
September 23 days
Warmest months:
July 85.4 °F
August 83.6 °F
June 76.7 °F
Coldest months:
January 28.3 °F
February 29.0 °F
December 34.3 °F
Rainiest months:
May 2 days
October 1 day
June 1 day
Windiest months:
December 13.1 mph
February 12.3 mph
November 12.0 mph

Casper on a weather map

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Name
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24 Hours Forecast
Casper
Local time: 16:24
April 04, friday
1800
37°F
SW
9 mph
2100
27°F
SW
8 mph
April 05, saturday
0000
23°F
SW
5 mph
0300
19°F
NW
3 mph
0600
18°F
NE
4 mph
0900
30°F
NE
8 mph
1200
41°F
E
9 mph
1500
46°F
E
9 mph
Units of measurement: °C / °F