Windsor weather in August

In August, Windsor sees average daytime highs of 84°F and overnight lows near 57°F, with 1.5 in of rain across 6.7 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 84°F through the month. The sky is clear or mostly clear about 41% 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 Windsor's 6th-clearest and 12th-windiest month. For the whole year in context, see Windsor's year-round climate.

Daytime high
84°
2nd warmest
Overnight low
57°
11th coldest
Rainfall
1.5 in
6.7 wet days
Daylight
13 h 36 min
5:15 AM – 6:52 PM
Cloud cover
49%
6th clearest
Wind
4 mph
12th windiest
Solar energy
6.45 kWh/m²
Travel score
6.2
out of 10

Windsor is town in Larimer and Weld counties in Colorado, United States.

Density
510/km²
people per km²
Founded
1882

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 84°F through the month.

A typical August day in Windsor reaches about 84°F in the afternoon and slips back to 57°F overnight — a 27°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 92°F. Set against its neighbours, August runs about 2°F cooler than July and about 8°F warmer than September.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
18558
28558
38558
48558
58458
68458
78458
88458
98458
108457
118457
128457
138457
148457
158457
168457
178457
188456
198456
208456
218456
228356
238356
248356
258356
268356
278355
288355
298255
308255
318255

How August really feels in Windsor

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.

Windsor weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan41° / 19°0.644.29.40.1
Feb44° / 20°0.74.94.610.40.9
Mar53° / 27°1.56.94.311.73.4
Apr60° / 34°2.59.63.7134.9
May69° / 43°3.411.60.714.26.1
Jun79° / 52°2.18.7014.86.7
Jul86° / 58°1.77.7014.65.5
Aug84° / 57°1.56.7013.66.2
Sep76° / 49°1.55.80.312.37.6
Oct63° / 37°1.66.9210.96.0
Nov50° / 27°1.05.34.29.72.6
Dec41° / 20°0.63.849.20.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 26% of August, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26238
36238
46238
56337
66436
76436
86436
96535
106535
116634
126634
136733
146733
156733
166733
176733
186733
196733
206733
216733
226733
236832
246832
256832
266931
276931
287030
297030
307129
317129

Chance of precipitation in August

Any precipitation

Windsor gets around 1.5 in of rain over 6.7 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
327
427
526
626
725
825
924
1024
1123
1223
1322
1421
1521
1620
1720
1820
1919
2019
2119
2218
2318
2417
2517
2617
2716
2816
2916
3016
3116

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 (%)
167294
267294
368293
468293
569283
670282
771272
872262
973252
1075241
1176231
1277221
1378211
1479201
1580191
1682180
1783170
1883170
1984160
2084160
2185150
2286140
2386140
2487130
2587130
2688120
2788120
2889110
2989110
3090100
319190

Wind in August

Winds average 4 mph in August, the calmest month.

Across August, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

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 5:30 AM, and sunset from 7:11 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:007:11
214.15:017:10
314.15:027:09
414.15:037:08
514.05:047:07
614.05:057:05
714.05:067:04
813.95:077:03
913.95:087:02
1013.95:097:00
1113.85:106:59
1213.85:116:58
1313.75:126:56
1413.75:136:55
1513.75:146:54
1613.65:156:52
1713.65:166:51
1813.55:176:49
1913.55:186:48
2013.55:196:47
2113.45:206:45
2213.45:216:44
2313.35:226:42
2413.35:236:40
2513.25:246:39
2613.25:256:37
2713.25:266:36
2813.15:276:34
2913.15:286:32
3013.05:296:31
3113.05:306:29

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.45 kWh/m².

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 7.32 kWh/m² in June across the year — August's 6.45 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.4Intense
206.4Intense
216.4Intense
226.3Intense
236.3Intense
246.3Intense
256.2Intense
266.2Intense
276.2Intense
286.1Intense
296.1Intense
306.1Intense
316.0Intense
Planning a trip in August

Is August a good time to visit Windsor?

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

6.2
Sightseeing
3rd-best month of the year
7.7
Beach & pool
1st-best month of the year

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

What to pack for Windsor in August

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

In August, Windsor sees daytime highs around 84°F and nights near 57°F. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Windsor 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 Windsor 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 Windsor 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 Windsor 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 Windsor?

Windsor sits at 40.5°N, 104.9°W, 4,797 ft above sea level, in United States. The nearest listed city is Loveland, 11 mi away.

Topography around Windsor

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

Within 2 miles, the terrain around Windsor has only modest variations in elevation — a maximum elevation change of 131 ft around an average of 4,790 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 633 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,780 ft.

The land around Windsor is covered by grassland (31%), cropland (27%) and artificial surfaces (23%) within 2 miles, grassland (39%) and cropland (38%) within 10 miles, and grassland (57%) within 50 miles.

2 miles
131 ft
10 miles
633 ft
50 miles
9,780 ft
treesgrasslandcroplandartificial surfacesbare terrainwatermoss and lichen
August weather nearby: Loveland 11 mi · Greeley 11 mi · Fort Collins 12 mi · Evans 13 mi · Longmont 24 mi · Erie 30 mi · Estes Park 34 mi · Brighton 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 Windsor (40.4775°, -104.9014°, elevation 4,797 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).