Casper weather in March

In March, Casper sees average daytime highs of 42°F and overnight lows near 22°F, with 1.5 in of precipitation across 7.1 wet days and about 11.6 hours of daylight. It is the 8th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 36°F in the first days to 46°F by the end. The sky is clear or mostly clear about 32% of the time in March, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of March to 12 h 24 min by month's end. Set against the rest of the year, March is Casper's 10th-clearest and 5th-windiest month. For the whole year in context, see Casper's year-round climate.

Daytime high
42°
8th warmest
Overnight low
22°
4th coldest
Precipitation
1.5 in
7.1 wet days
Daylight
11 h 36 min
6:26 AM – 6:04 PM
Cloud cover
55%
10th clearest
Wind
8 mph
5th windiest
Solar energy
5.15 kWh/m²
Travel score
0.5
out of 10

Casper is city in and county seat of Natrona County, Wyoming, United States.

Density
868/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 36°F in the first days to 46°F by the end.

A typical March day in Casper reaches about 42°F in the afternoon and slips back to 22°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 28°F and 56°F. Set against its neighbours, March runs about 10°F warmer than February and about 8°F cooler than April.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
13516
23616
33617
43717
53718
63818
73819
83919
94020
104020
114121
124121
134222
144222
154223
164323
174323
184424
194424
204424
214424
224424
234524
244525
254525
264525
274525
284625
294625
304625
314626

How March really feels in Casper

Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 31 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
31
17 feel bitter (≤ 14°F)

The story in March is cold — wind chill drags the overnight "feels like" below the raw low.

Casper weather by month

How March compares with the rest of the year at a glance. March is the 8th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan29° / 12°0.85.65.79.20.0
Feb32° / 13°1.05.95.810.20.0
Mar42° / 22°1.57.1611.60.5
Apr50° / 29°2.310.8713.12.3
May62° / 39°2.711.12.314.45.0
Jun75° / 49°1.46.30.115.17.5
Jul84° / 56°0.74.5014.86.5
Aug82° / 55°0.64.1013.87.3
Sep71° / 46°1.15.60.712.37.5
Oct55° / 33°1.874.110.84.0
Nov41° / 22°1.15.75.59.50.4
Dec30° / 13°0.95.66.18.90.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 20% of March, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35644
45644
55644
65545
75545
85545
95446
105446
115347
125347
135248
145149
155149
165050
175050
184951
194951
204951
214852
224852
234951
244951
254951
264951
274951
285050
295050
305149
315149

Chance of precipitation in March

Any precipitationSnow

Casper gets around 1.5 in of rain and snow over 7.1 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 23% and peaks near 30% on the wettest days, and about 6 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
12021
22021
32020
41920
51920
61920
71920
82020
92020
102020
112120
122120
132120
142219
152219
162219
172319
182318
192318
202418
212419
222519
232619
242620
252720
262821
272821
282922
292922
302923
313023

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, March lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in March

Winds average 8 mph in March.

Across March, daily wind ranges from about 8 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 10 h 54 min at the start of March to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over March. Sunrise moves from 6:51 AM to 5:59 AM, and sunset from 5:46 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:515:46
211.06:505:47
311.06:485:48
411.06:465:49
511.16:455:51
611.16:435:52
711.26:415:53
811.26:405:54
911.36:385:56
1011.36:365:57
1111.46:355:58
1211.46:335:59
1311.56:316:00
1411.56:296:02
1511.66:286:03
1611.66:266:04
1711.76:246:05
1811.76:226:06
1911.86:206:08
2011.86:196:09
2111.96:176:10
2211.96:156:11
2312.06:136:12
2412.06:116:14
2512.16:106:15
2612.16:086:16
2712.26:066:17
2812.26:046:18
2912.36:026:19
3012.36:006:21
3112.45:596:22

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.15 kWh/m².

For context, solar energy here swings from a low near 2.16 kWh/m² to a high of 7.76 kWh/m² in June across the year — March's 5.15 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.6Bright
44.6Bright
54.7Bright
64.7Bright
74.8Bright
84.8Bright
94.8Bright
104.9Bright
114.9Bright
125.0Bright
135.0Bright
145.1Bright
155.1Bright
165.2Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.3Bright
225.4Bright
235.4Bright
245.5Bright
255.5Bright
265.6Bright
275.6Bright
285.6Bright
295.7Bright
305.7Bright
315.8Bright
Planning a trip in March

Is March a good time to visit Casper?

Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.5
Sightseeing
8th-best month of the year
0.0
Beach & pool
8th-best month of the year

March is a weaker month for outdoor sightseeing in Casper.

What to pack for Casper in March

From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In March, Casper sees daytime highs around 42°F and nights near 22°F. Pack a warm layer and a heavy coat. Worth having: sun protection. About 7 days see rain.

a warm layera heavy coatsun protection

UV index in Casper in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Casper peaks around July 11 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 10Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr6High
May8Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low
Location & terrain

Where is Casper?

Casper sits at 42.9°N, 106.3°W, 5,118 ft above sea level, in United States. The nearest listed city is Gillette, 106 mi away.

Topography around Casper

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Casper.

Within 2 miles, the terrain around Casper has only modest variations in elevation — a maximum elevation change of 282 ft around an average of 5,180 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,173 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,770 ft.

The land around Casper is covered by grassland (49%) and artificial surfaces (32%) within 2 miles, grassland (81%) within 10 miles, and grassland (91%) within 50 miles.

2 miles
282 ft
10 miles
3,173 ft
50 miles
4,770 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Gillette 106 mi · Laramie 114 mi · Sheridan 137 mi · Cheyenne 142 mi · Fort Collins 170 mi · Rock Springs 172 mi · Rapid City 176 mi · Estes Park 177 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Casper (42.8666°, -106.3131°, elevation 5,118 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).