Cheyenne weather in May

In May, Cheyenne sees average daytime highs of 64°F and overnight lows near 42°F, with 3.0 in of precipitation across 12.3 wet days and about 14.3 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 59°F in the first days to 69°F by the end. The sky is clear or mostly clear about 21% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 42 min by month's end. Set against the rest of the year, May is Cheyenne's 12th-clearest and 8th-windiest month. For the whole year in context, see Cheyenne's year-round climate.

Daytime high: 64°; 5th warmest
Overnight low: 42°; 8th coldest
Precipitation: 3.0 in; 12.3 wet days
Daylight: 14 h 18 min; 4:47 AM – 7:04 PM
Cloud cover: 64%; 12th clearest
Wind: 10 mph; 8th windiest
Solar energy: 6.63 kWh/m²
Travel score: 5.3; out of 10

Cheyenne is capital city of the U.S. state of Wyoming and seat of Laramie County.

Density: 1,021/km²; people per km²
Founded: 1867

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

← April Cheyenne year-round climate June →Best places to visit in May

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 59°F in the first days to 69°F by the end.

A typical May day in Cheyenne reaches about 64°F in the afternoon and slips back to 42°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 49°F and 78°F. Set against its neighbours, May runs about 9°F warmer than April and about 12°F cooler than June.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°F)	58	59	59	60	60	60	61	61	62	62	62	63	63	64	64	64	65	65	65	65	66	66	67	67	67	67	68	68	69	69	70
Avg low (°F)	36	36	37	37	37	38	38	38	39	39	40	40	40	41	41	42	42	42	43	43	43	44	44	44	45	45	45	46	46	46	47

	Avg high (°F)	Avg low (°F)
1	58	36
2	59	36
3	59	37
4	60	37
5	60	37
6	60	38
7	61	38
8	61	38
9	62	39
10	62	39
11	62	40
12	63	40
13	63	40
14	64	41
15	64	41
16	64	42
17	65	42
18	65	42
19	65	43
20	65	43
21	66	43
22	66	44
23	67	44
24	67	44
25	67	45
26	67	45
27	68	45
28	68	46
29	69	46
30	69	46
31	70	47

How May really feels in Cheyenne

Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 8 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

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

Cheyenne weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	38° / 21°	0.5	3.9	3.8	9.4	0.0
Feb	40° / 21°	0.7	4.8	4.8	10.4	0.1
Mar	49° / 27°	1.4	6.6	5.1	11.7	2.1
Apr	55° / 32°	2.4	10	5.4	13.1	3.4
May	64° / 42°	3.0	12.3	1.5	14.3	5.3
Jun	76° / 51°	2.1	10.2	0	14.9	6.8
Jul	83° / 57°	1.6	9.3	0	14.7	6.3
Aug	81° / 56°	1.5	8.2	0	13.6	6.9
Sep	73° / 47°	1.5	6	0.4	12.3	7.5
Oct	59° / 36°	1.5	6.9	2.7	10.9	5.1
Nov	47° / 27°	0.8	4.7	4.4	9.7	1.7
Dec	38° / 21°	0.7	4.2	4.5	9.1	0.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 57%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	43	43	42	42	43	43	43	44	44	43	43	43	43	43	43	43	43	43	42	42	42	42	43	43	43	43	45	45	46	46	48
Cloudier (%)	57	57	58	58	57	57	57	56	56	57	57	57	57	57	57	57	57	57	58	58	58	58	57	57	57	57	55	55	54	54	52

	Clearer (%)	Cloudier (%)
1	43	57
2	43	57
3	42	58
4	42	58
5	43	57
6	43	57
7	43	57
8	44	56
9	44	56
10	43	57
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	43	57
19	42	58
20	42	58
21	42	58
22	42	58
23	43	57
24	43	57
25	43	57
26	43	57
27	45	55
28	45	55
29	46	54
30	46	54
31	48	52

Chance of precipitation in May

Any precipitationSnow

Cheyenne gets around 3.0 in of rain and snow over 12.3 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 40% and peaks near 42% on the wettest days, and about 2 days bring snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	39	40	40	40	39	39	39	38	38	37	37	37	37	38	38	38	39	39	40	40	41	41	41	42	42	42	42	42	42	41	41
Snow chance (%)	12	11	11	10	10	9	8	8	7	6	6	6	6	6	5	5	5	5	4	4	4	3	3	3	2	2	2	1	1	1	1

	Rain chance (%)	Snow chance (%)
1	39	12
2	40	11
3	40	11
4	40	10
5	39	10
6	39	9
7	39	8
8	38	8
9	38	7
10	37	6
11	37	6
12	37	6
13	37	6
14	38	6
15	38	5
16	38	5
17	39	5
18	39	5
19	40	4
20	40	4
21	41	4
22	41	3
23	41	3
24	42	3
25	42	2
26	42	2
27	42	2
28	42	1
29	42	1
30	41	1
31	41	1

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

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

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in May

Winds average 10 mph in May.

Across May, daily wind ranges from about 9 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (mph)	11	11	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	9	9	9
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (mph)	Feels
1	11	light breeze
2	11	light breeze
3	10	light breeze
4	10	light breeze
5	10	light breeze
6	10	light breeze
7	10	light breeze
8	10	light breeze
9	10	light breeze
10	10	light breeze
11	10	light breeze
12	10	light breeze
13	10	light breeze
14	10	light breeze
15	10	light breeze
16	10	light breeze
17	10	light breeze
18	10	light breeze
19	10	light breeze
20	10	light breeze
21	10	light breeze
22	10	light breeze
23	10	light breeze
24	10	light breeze
25	10	light breeze
26	10	light breeze
27	10	light breeze
28	10	light breeze
29	9	light breeze
30	9	light breeze
31	9	light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:04 AM to 4:35 AM, and sunset from 6:49 PM to 7:18 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	13.7	13.8	13.8	13.9	13.9	13.9	14.0	14.0	14.1	14.1	14.1	14.2	14.2	14.2	14.3	14.3	14.3	14.4	14.4	14.4	14.5	14.5	14.5	14.5	14.6	14.6	14.6	14.6	14.7	14.7	14.7
Sunrise (AM)	5:04	5:03	5:02	5:00	4:59	4:58	4:57	4:55	4:54	4:53	4:52	4:51	4:50	4:49	4:48	4:47	4:46	4:45	4:44	4:43	4:42	4:41	4:40	4:40	4:39	4:38	4:38	4:37	4:36	4:36	4:35
Sunset (PM)	6:49	6:50	6:51	6:52	6:53	6:54	6:55	6:56	6:57	6:58	6:59	7:00	7:01	7:02	7:03	7:04	7:05	7:06	7:07	7:08	7:09	7:10	7:11	7:12	7:13	7:14	7:15	7:16	7:16	7:17	7:18

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.7	5:04	6:49
2	13.8	5:03	6:50
3	13.8	5:02	6:51
4	13.9	5:00	6:52
5	13.9	4:59	6:53
6	13.9	4:58	6:54
7	14.0	4:57	6:55
8	14.0	4:55	6:56
9	14.1	4:54	6:57
10	14.1	4:53	6:58
11	14.1	4:52	6:59
12	14.2	4:51	7:00
13	14.2	4:50	7:01
14	14.2	4:49	7:02
15	14.3	4:48	7:03
16	14.3	4:47	7:04
17	14.3	4:46	7:05
18	14.4	4:45	7:06
19	14.4	4:44	7:07
20	14.4	4:43	7:08
21	14.5	4:42	7:09
22	14.5	4:41	7:10
23	14.5	4:40	7:11
24	14.5	4:40	7:12
25	14.6	4:39	7:13
26	14.6	4:38	7:14
27	14.6	4:38	7:15
28	14.6	4:37	7:16
29	14.7	4:36	7:16
30	14.7	4:36	7:17
31	14.7	4:35	7:18

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.63 kWh/m².

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 7.28 kWh/m² in June across the year — May's 6.63 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	6.5	6.5	6.5	6.5	6.5	6.5	6.6	6.6	6.6	6.6	6.6	6.6	6.6	6.6	6.6	6.6	6.6	6.6	6.6	6.6	6.7	6.7	6.7	6.7	6.7	6.7	6.8	6.8	6.8	6.8	6.9
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	6.5	Intense
2	6.5	Intense
3	6.5	Intense
4	6.5	Intense
5	6.5	Intense
6	6.5	Intense
7	6.6	Intense
8	6.6	Intense
9	6.6	Intense
10	6.6	Intense
11	6.6	Intense
12	6.6	Intense
13	6.6	Intense
14	6.6	Intense
15	6.6	Intense
16	6.6	Intense
17	6.6	Intense
18	6.6	Intense
19	6.6	Intense
20	6.6	Intense
21	6.7	Intense
22	6.7	Intense
23	6.7	Intense
24	6.7	Intense
25	6.7	Intense
26	6.7	Intense
27	6.8	Intense
28	6.8	Intense
29	6.8	Intense
30	6.8	Intense
31	6.9	Intense

Planning a trip in May

Is May a good time to visit Cheyenne?

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

5.3

Sightseeing

5th-best month of the year

1.8

Beach & pool

5th-best month of the year

May is a reasonable time to visit Cheyenne for sightseeing.

What to pack for Cheyenne in May

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

In May, Cheyenne sees daytime highs around 64°F and nights near 42°F. Pack sun protection. Worth having: a warm layer and rain gear. About 12 days see rain.

sun protectiona warm layerrain gear

UV index in Cheyenne in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cheyenne peaks around July 13 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	3	7	6	8	10	11	9	7	5	3	2
Level	Low	Moderate	High	High	Very high	Extreme	Extreme	Very high	Very high	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	2	Low
Feb	3	Moderate
Mar	7	High
Apr	6	High
May	8	Very high
Jun	10	Extreme
Jul	11	Extreme
Aug	9	Very high
Sep	7	Very high
Oct	5	Moderate
Nov	3	Moderate
Dec	2	Low

Air quality in Cheyenne in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Cheyenne is worst in September — around 15 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (November, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	7	8	10	9	10	10	11	14	15	13	6	6
Level	Good	Good	Good	Good	Good	Good	Good	Moderate	Moderate	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	7	Good
Feb	8	Good
Mar	10	Good
Apr	9	Good
May	10	Good
Jun	10	Good
Jul	11	Good
Aug	14	Moderate
Sep	15	Moderate
Oct	13	Moderate
Nov	6	Good
Dec	6	Good

Location & terrain

Where is Cheyenne?

Cheyenne sits at 41.1°N, 104.8°W, 6,089 ft above sea level, in United States. The nearest listed city is Fort Collins, 41 mi away.

Topography around Cheyenne

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

Within 2 miles, the terrain around Cheyenne has only modest variations in elevation — a maximum elevation change of 184 ft around an average of 6,099 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 984 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,801 ft.

The land around Cheyenne is covered by artificial surfaces (57%) and grassland (32%) within 2 miles, grassland (90%) within 10 miles, and grassland (83%) within 50 miles.

2 miles

184 ft

artificial surfaces 57%

10 miles

984 ft

grassland 90%

50 miles

5,801 ft

grassland 83%

treesgrasslandcroplandartificial surfacesbare terrainwater

← April Cheyenne year-round climate June →Best places to visit in May

May weather nearby: Fort Collins 41 mi · Laramie 42 mi · Windsor 46 mi · Greeley 50 mi · Loveland 53 mi · Evans 53 mi · Estes Park 64 mi · Longmont 69 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

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 Cheyenne (41.14°, -104.8203°, elevation 6,089 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°F)	Avg low (°F)
1	58	36
2	59	36
3	59	37
4	60	37
5	60	37
6	60	38
7	61	38
8	61	38
9	62	39
10	62	39
11	62	40
12	63	40
13	63	40
14	64	41
15	64	41
16	64	42
17	65	42
18	65	42
19	65	43
20	65	43
21	66	43
22	66	44
23	67	44
24	67	44
25	67	45
26	67	45
27	68	45
28	68	46
29	69	46
30	69	46
31	70	47

	Clearer (%)	Cloudier (%)
1	43	57
2	43	57
3	42	58
4	42	58
5	43	57
6	43	57
7	43	57
8	44	56
9	44	56
10	43	57
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	43	57
19	42	58
20	42	58
21	42	58
22	42	58
23	43	57
24	43	57
25	43	57
26	43	57
27	45	55
28	45	55
29	46	54
30	46	54
31	48	52

	Rain chance (%)	Snow chance (%)
1	39	12
2	40	11
3	40	11
4	40	10
5	39	10
6	39	9
7	39	8
8	38	8
9	38	7
10	37	6
11	37	6
12	37	6
13	37	6
14	38	6
15	38	5
16	38	5
17	39	5
18	39	5
19	40	4
20	40	4
21	41	4
22	41	3
23	41	3
24	42	3
25	42	2
26	42	2
27	42	2
28	42	1
29	42	1
30	41	1
31	41	1

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	58	36
2	59	36
3	59	37
4	60	37
5	60	37
6	60	38
7	61	38
8	61	38
9	62	39
10	62	39
11	62	40
12	63	40
13	63	40
14	64	41
15	64	41
16	64	42
17	65	42
18	65	42
19	65	43
20	65	43
21	66	43
22	66	44
23	67	44
24	67	44
25	67	45
26	67	45
27	68	45
28	68	46
29	69	46
30	69	46
31	70	47

	Clearer (%)	Cloudier (%)
1	43	57
2	43	57
3	42	58
4	42	58
5	43	57
6	43	57
7	43	57
8	44	56
9	44	56
10	43	57
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	43	57
19	42	58
20	42	58
21	42	58
22	42	58
23	43	57
24	43	57
25	43	57
26	43	57
27	45	55
28	45	55
29	46	54
30	46	54
31	48	52

	Rain chance (%)	Snow chance (%)
1	39	12
2	40	11
3	40	11
4	40	10
5	39	10
6	39	9
7	39	8
8	38	8
9	38	7
10	37	6
11	37	6
12	37	6
13	37	6
14	38	6
15	38	5
16	38	5
17	39	5
18	39	5
19	40	4
20	40	4
21	41	4
22	41	3
23	41	3
24	42	3
25	42	2
26	42	2
27	42	2
28	42	1
29	42	1
30	41	1
31	41	1

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	58	36
2	59	36
3	59	37
4	60	37
5	60	37
6	60	38
7	61	38
8	61	38
9	62	39
10	62	39
11	62	40
12	63	40
13	63	40
14	64	41
15	64	41
16	64	42
17	65	42
18	65	42
19	65	43
20	65	43
21	66	43
22	66	44
23	67	44
24	67	44
25	67	45
26	67	45
27	68	45
28	68	46
29	69	46
30	69	46
31	70	47

	Clearer (%)	Cloudier (%)
1	43	57
2	43	57
3	42	58
4	42	58
5	43	57
6	43	57
7	43	57
8	44	56
9	44	56
10	43	57
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	43	57
19	42	58
20	42	58
21	42	58
22	42	58
23	43	57
24	43	57
25	43	57
26	43	57
27	45	55
28	45	55
29	46	54
30	46	54
31	48	52

	Rain chance (%)	Snow chance (%)
1	39	12
2	40	11
3	40	11
4	40	10
5	39	10
6	39	9
7	39	8
8	38	8
9	38	7
10	37	6
11	37	6
12	37	6
13	37	6
14	38	6
15	38	5
16	38	5
17	39	5
18	39	5
19	40	4
20	40	4
21	41	4
22	41	3
23	41	3
24	42	3
25	42	2
26	42	2
27	42	2
28	42	1
29	42	1
30	41	1
31	41	1

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100