Evans weather in August

In August, Evans sees average daytime highs of 86°F and overnight lows near 59°F, with 1.2 in of rain across 6.6 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 86°F through the month. The sky is clear or mostly clear about 45% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 12 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Evans's 6th-clearest and 10th-windiest month. For the whole year in context, see Evans's year-round climate.

Daytime high
86°
2nd warmest
Overnight low
59°
11th coldest
Rainfall
1.2 in
6.6 wet days
Daylight
13 h 36 min
5:14 AM – 6:51 PM
Cloud cover
47%
6th clearest
Wind
5 mph
10th windiest
Solar energy
6.48 kWh/m²
Travel score
5.5
out of 10

Evans is home rule municipality in Weld County, Colorado.

Density
783/km²
people per km²
Founded
1867

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 86°F through the month.

A typical August day in Evans reaches about 86°F in the afternoon and slips back to 59°F overnight — a 27°F spread between the day's warmth and the night's chill. On most days the high lands between 77°F and 94°F. Set against its neighbours, August runs about 2°F cooler than July and about 8°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18761
28761
38760
48760
58760
68760
78760
88760
98760
108760
118660
128659
138659
148659
158659
168659
178659
188659
198659
208658
218658
228658
238658
248558
258558
268558
278557
288557
298557
308457
318456

How August really feels in Evans

Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 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
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Evans weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan41° / 19°0.42.93.39.40.2
Feb45° / 21°0.43.43.410.41.2
Mar55° / 29°1.15.43.211.74.0
Apr62° / 36°1.98.52.7135.5
May71° / 45°2.69.80.614.26.6
Jun82° / 55°1.67.3014.86.4
Jul88° / 61°1.47.5014.64.7
Aug86° / 59°1.26.6013.65.5
Sep78° / 50°1.14.60.312.37.7
Oct64° / 38°1.25.11.410.96.5
Nov51° / 27°0.63.82.99.82.9
Dec41° / 20°0.42.939.20.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 24% of August, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26436
36436
46436
56634
66634
76733
86733
96733
106832
116832
126832
136931
146931
156931
166931
177030
187030
197030
207030
216931
227030
237030
247030
257129
267129
277228
287327
297327
307426
317327

Chance of precipitation in August

Any precipitation

Evans gets around 1.2 in of rain over 6.6 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 21% and peaks near 28% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
428
528
627
727
826
926
1025
1125
1224
1323
1422
1521
1620
1720
1819
1918
2018
2117
2217
2316
2415
2515
2614
2714
2814
2914
3014
3114

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
169256
269256
369256
469256
571245
671245
772244
873234
974233
1075223
1176213
1278202
1379192
1480182
1580182
1682171
1783161
1883161
1984151
2084151
2185141
2285141
2387130
2487130
2588120
2688120
2789110
2889110
2990100
3090100
319190

Wind in August

Winds average 5 mph in August.

Across August, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 12 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over August. Sunrise moves from 5:00 AM to 5:29 AM, and sunset from 7:10 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:007:10
214.15:017:09
314.15:027:08
414.15:037:07
514.05:047:05
614.05:057:04
714.05:067:03
813.95:077:02
913.95:077:01
1013.85:086:59
1113.85:096:58
1213.85:106:57
1313.75:116:55
1413.75:126:54
1513.75:136:53
1613.65:146:51
1713.65:156:50
1813.55:166:48
1913.55:176:47
2013.55:186:46
2113.45:196:44
2213.45:206:43
2313.35:216:41
2413.35:226:39
2513.25:236:38
2613.25:246:36
2713.25:256:35
2813.15:266:33
2913.15:276:32
3013.05:286:30
3113.05:296:28

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.48 kWh/m².

For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 7.29 kWh/m² in June across the year — August's 6.48 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.4Intense
216.4Intense
226.4Intense
236.3Intense
246.3Intense
256.3Intense
266.2Intense
276.2Intense
286.2Intense
296.1Intense
306.1Intense
316.0Intense
Planning a trip in August

Is August a good time to visit Evans?

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

5.5
Sightseeing
5th-best month of the year
7.6
Beach & pool
1st-best month of the year

August is a reasonable time to visit Evans for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Evans in August

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

In August, Evans sees daytime highs around 86°F and nights near 59°F. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Evans in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Evans peaks around July 13 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 13UV 11Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar6High
Apr6High
May7Very high
Jun10Extreme
Jul11Extreme
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Evans in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Evans is worst in October — around 30 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (November, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodOct 1528 µg/m³Nov 2310 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar14Moderate
Apr11Good
May11Good
Jun12Good
Jul14Moderate
Aug19Moderate
Sep17Moderate
Oct30Moderate
Nov10Good
Dec11Good
Location & terrain

Where is Evans?

Evans sits at 40.4°N, 104.7°W, 4,652 ft above sea level, in United States. The nearest listed city is Greeley, 3.1 mi away.

Topography around Evans

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

Within 2 miles, the terrain around Evans has only modest variations in elevation — a maximum elevation change of 213 ft around an average of 4,685 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 495 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,869 ft.

The land around Evans is covered by artificial surfaces (35%) and grassland (30%) within 2 miles, cropland (51%) and grassland (35%) within 10 miles, and grassland (60%) and cropland (21%) within 50 miles.

2 miles
213 ft
10 miles
495 ft
50 miles
9,869 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Greeley 3.1 mi · Windsor 13 mi · Loveland 21 mi · Fort Collins 25 mi · Longmont 26 mi · Brighton 28 mi · Erie 29 mi · Lafayette 34 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 Evans (40.3764°, -104.6922°, elevation 4,652 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).