Deer Valley weather in October

In October, Deer Valley sees average daytime highs of 86°F and overnight lows near 62°F, with 0.7 in of rain across 2.1 wet days and about 11.2 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 91°F in the first days to 80°F by the end. The sky is clear or mostly clear about 77% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of October to 10 h 42 min by month's end. Set against the rest of the year, October is Deer Valley's 2nd-clearest and 5th-windiest month. For the whole year in context, see Deer Valley's year-round climate.

Daytime high
86°
6th warmest
Overnight low
62°
7th coldest
Rainfall
0.7 in
2.1 wet days
Daylight
11 h 06 min
6:39 AM – 5:48 PM
Cloud cover
21%
2nd clearest
Wind
6 mph
5th windiest
Solar energy
5 kWh/m²
Travel score
6.6
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 91°F in the first days to 80°F by the end.

A typical October day in Deer Valley reaches about 86°F in the afternoon and slips back to 62°F overnight — a 24°F spread between the day's warmth and the night's chill. On most days the high lands between 75°F and 95°F. Set against its neighbours, October runs about 11°F cooler than September and about 13°F warmer than November.

40°60°80°100°151015202531
Avg high (°F)Avg low (°F)
19268
29268
39167
49167
59066
69066
78965
88965
98965
108864
118864
128764
138763
148763
158662
168662
178562
188561
198561
208460
218460
228360
238359
248259
258258
268158
278158
288057
298057
308056
317956

How October really feels in Deer Valley

Once humidity and wind are folded in, October averages 6 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
6
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Deer Valley weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan65° / 43°1.43.6107.2
Feb68° / 46°1.64.410.77.4
Mar74° / 51°1.13.111.78.3
Apr82° / 57°0.31.312.87.8
May91° / 66°0.10.713.74.8
Jun100° / 75°0.10.314.21.4
Jul103° / 82°0.73140.3
Aug101° / 81°0.93.913.30.8
Sep96° / 74°0.83.112.22.7
Oct86° / 62°0.72.111.26.6
Nov73° / 51°0.82.210.38.5
Dec64° / 43°1.23.49.86.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 77% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 10% of October, with mostly cloudy or overcast conditions the remaining 13%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
19010
29010
39010
49010
58911
68911
79010
88911
98911
108911
118911
128812
138812
148812
158812
168713
178713
188713
198614
208614
218614
228515
238515
248515
258515
268515
278416
288416
298416
308317
318317

Chance of precipitation in October

Any precipitation

Deer Valley gets around 0.7 in of rain over 2.1 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 7% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
76
86
96
106
116
126
136
146
156
166
177
187
197
207
217
227
237
247
257
267
277
287
297
306
316

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
187742
287742
390631
490631
590631
690631
790631
892530
993520
1093520
1193520
1294420
1394420
1494420
1595410
1695410
1795410
1895410
1995410
2095410
2197300
2297300
2397300
2497300
2597300
2698200
2798200
2898200
2998200
3099100
3199100

Wind in October

Winds average 6 mph in October.

Across October, daily wind ranges from about 6 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 min at the start of October to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over October. Sunrise moves from 6:27 AM to 6:52 AM, and sunset from 6:08 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:276:08
211.66:286:06
311.66:296:05
411.66:306:03
511.56:306:02
611.56:316:01
711.56:325:59
811.46:335:58
911.46:345:57
1011.46:345:55
1111.36:355:54
1211.36:365:53
1311.26:375:52
1411.26:385:50
1511.26:385:49
1611.16:395:48
1711.16:405:47
1811.16:415:46
1911.06:425:44
2011.06:435:43
2111.06:435:42
2210.96:445:41
2310.96:455:40
2410.96:465:39
2510.86:475:38
2610.86:485:37
2710.86:495:36
2810.86:505:35
2910.76:505:34
3010.76:515:33
3110.76:525:32

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5 kWh/m².

For context, solar energy here swings from a low near 3.12 kWh/m² to a high of 8.48 kWh/m² in June across the year — October's 5 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.5Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.0Bright
175.0Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.7Bright
234.7Bright
244.6Bright
254.6Bright
264.5Bright
274.5Bright
284.5Bright
294.4Bright
304.4Bright
314.3Bright
Planning a trip in October

Is October a good time to visit Deer Valley?

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

6.6
Sightseeing
7th-best month of the year
8.5
Beach & pool
2nd-best month of the year

October is a reasonable time to visit Deer Valley for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Deer Valley in October

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

In October, Deer Valley sees daytime highs around 86°F and nights near 62°F. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Deer Valley in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Deer Valley peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 14UV 11Dec 20UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5Moderate
Apr7High
May9Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Deer Valley in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Deer Valley is worst in June — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodGoodJun 1917 µg/m³Dec 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar11Good
Apr12Moderate
May12Moderate
Jun17Moderate
Jul15Moderate
Aug12Good
Sep11Good
Oct13Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Deer Valley?

Deer Valley sits at 33.7°N, 112.1°W, 1,375 ft above sea level, in United States. The nearest listed city is Peoria, 9.3 mi away.

Topography around Deer Valley

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

Within 2 miles, the terrain around Deer Valley has only modest variations in elevation — a maximum elevation change of 568 ft around an average of 1,391 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,299 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,133 ft.

The land around Deer Valley is covered by artificial surfaces (53%) and shrubs (22%) within 2 miles, artificial surfaces (49%) and shrubs (30%) within 10 miles, and shrubs (55%) within 50 miles.

2 miles
568 ft
10 miles
1,299 ft
50 miles
7,133 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrain
October weather nearby: Peoria 9.3 mi · Sun City 9.9 mi · Glendale 11 mi · El Mirage 12 mi · Sun City West 12 mi · Surprise 12 mi · Anthem 12 mi · Maryvale 13 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 Deer Valley (33.6839°, -112.1349°, elevation 1,375 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).