Green Valley weather in October

In October, Green Valley sees average daytime highs of 81°F and overnight lows near 56°F, with 0.7 in of rain across 2.8 wet days and about 11.2 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 86°F in the first days to 76°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 48 min by month's end. Set against the rest of the year, October is Green Valley's 2nd-clearest and 6th-windiest month. For the whole year in context, see Green Valley's year-round climate.

Daytime high: 81°; 6th warmest
Overnight low: 56°; 7th coldest
Rainfall: 0.7 in; 2.8 wet days
Daylight: 11 h 12 min; 6:33 AM – 5:45 PM
Cloud cover: 23%; 2nd clearest
Wind: 6 mph; 6th windiest
Solar energy: 5.23 kWh/m²
Travel score: 7.9; out of 10

Green Valley is census-designated place in Pima County, Arizona, United States.

Density: 256/km²; people per km²

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

← September Green Valley year-round climate November →Best places to visit in October

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 86°F in the first days to 76°F by the end.

A typical October day in Green Valley reaches about 81°F in the afternoon and slips back to 56°F overnight — a 25°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 89°F. Set against its neighbours, October runs about 7°F cooler than September and about 11°F warmer than November.

	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)	86	86	86	85	85	85	84	84	84	83	83	83	82	82	82	81	81	80	80	80	79	79	79	78	78	77	77	77	76	76	76
Avg low (°F)	62	62	61	61	60	60	59	59	58	58	58	57	57	57	56	56	56	55	55	55	54	54	53	53	53	52	52	52	51	51	51

	Avg high (°F)	Avg low (°F)
1	86	62
2	86	62
3	86	61
4	85	61
5	85	60
6	85	60
7	84	59
8	84	59
9	84	58
10	83	58
11	83	58
12	83	57
13	82	57
14	82	57
15	82	56
16	81	56
17	81	56
18	80	55
19	80	55
20	80	55
21	79	54
22	79	54
23	79	53
24	78	53
25	78	53
26	77	52
27	77	52
28	77	52
29	76	51
30	76	51
31	76	51

How October really feels in Green Valley

Once humidity and wind are folded in, October 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

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

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

Green Valley weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Daylight (hours)	Travel score
Jan	63° / 38°	1.0	3.9	10.2	6.6
Feb	65° / 41°	1.0	4	10.8	7.1
Mar	71° / 46°	0.7	3	11.8	8.2
Apr	78° / 51°	0.2	1.5	12.8	8.8
May	87° / 58°	0.1	1.1	13.6	6.4
Jun	95° / 67°	0.3	2	14	3.4
Jul	93° / 72°	2.5	11.5	13.9	3.0
Aug	91° / 70°	2.3	11.6	13.2	3.6
Sep	89° / 66°	1.4	5.6	12.2	5.1
Oct	81° / 56°	0.7	2.8	11.2	7.9
Nov	71° / 46°	0.6	2.5	10.4	8.3
Dec	62° / 38°	1.1	4.2	10	6.4

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.

	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 (%)	89	89	89	89	89	89	88	88	88	87	87	87	88	88	88	87	87	86	86	86	86	86	86	86	86	85	85	85	84	84	84
Cloudier (%)	11	11	11	11	11	11	12	12	12	13	13	13	12	12	12	13	13	14	14	14	14	14	14	14	14	15	15	15	16	16	16

	Clearer (%)	Cloudier (%)
1	89	11
2	89	11
3	89	11
4	89	11
5	89	11
6	89	11
7	88	12
8	88	12
9	88	12
10	87	13
11	87	13
12	87	13
13	88	12
14	88	12
15	88	12
16	87	13
17	87	13
18	86	14
19	86	14
20	86	14
21	86	14
22	86	14
23	86	14
24	86	14
25	86	14
26	85	15
27	85	15
28	85	15
29	84	16
30	84	16
31	84	16

Chance of precipitation in October

Any precipitation

Green Valley gets around 0.7 in of rain over 2.8 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 9% and peaks near 11% on the wettest days.

	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 (%)	11	11	10	10	10	10	10	10	9	9	9	9	9	9	9	9	8	8	8	8	8	8	8	8	8	8	7	7	7	7	7

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

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 95% 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 (%)	84	85	87	88	89	90	91	92	93	93	93	95	95	96	96	96	97	97	97	98	98	98	98	98	99	99	99	99	99	99	100
Comfortable (%)	11	10	10	9	9	8	8	7	6	6	6	5	5	4	4	4	3	3	3	2	2	2	2	2	1	1	1	1	1	1	0
Humid (%)	4	4	3	3	2	2	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Muggy (%)	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	84	11	4	1
2	85	10	4	1
3	87	10	3	0
4	88	9	3	0
5	89	9	2	0
6	90	8	2	0
7	91	8	1	0
8	92	7	1	0
9	93	6	1	0
10	93	6	1	0
11	93	6	1	0
12	95	5	0	0
13	95	5	0	0
14	96	4	0	0
15	96	4	0	0
16	96	4	0	0
17	97	3	0	0
18	97	3	0	0
19	97	3	0	0
20	98	2	0	0
21	98	2	0	0
22	98	2	0	0
23	98	2	0	0
24	98	2	0	0
25	99	1	0	0
26	99	1	0	0
27	99	1	0	0
28	99	1	0	0
29	99	1	0	0
30	99	1	0	0
31	100	0	0	0

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.

	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)	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	6	6
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

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

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 min at the start of October to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over October. Sunrise moves from 6:22 AM to 6:45 AM, and sunset from 6:04 PM to 5:30 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)	11.7	11.7	11.6	11.6	11.6	11.5	11.5	11.5	11.4	11.4	11.4	11.3	11.3	11.3	11.2	11.2	11.2	11.1	11.1	11.1	11.0	11.0	11.0	11.0	10.9	10.9	10.9	10.8	10.8	10.8	10.8
Sunrise (AM)	6:22	6:23	6:24	6:24	6:25	6:26	6:26	6:27	6:28	6:28	6:29	6:30	6:31	6:31	6:32	6:33	6:34	6:34	6:35	6:36	6:37	6:38	6:38	6:39	6:40	6:41	6:42	6:42	6:43	6:44	6:45
Sunset (PM)	6:04	6:02	6:01	6:00	5:59	5:57	5:56	5:55	5:53	5:52	5:51	5:50	5:49	5:47	5:46	5:45	5:44	5:43	5:42	5:41	5:40	5:39	5:38	5:37	5:36	5:35	5:34	5:33	5:32	5:31	5:30

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.7	6:22	6:04
2	11.7	6:23	6:02
3	11.6	6:24	6:01
4	11.6	6:24	6:00
5	11.6	6:25	5:59
6	11.5	6:26	5:57
7	11.5	6:26	5:56
8	11.5	6:27	5:55
9	11.4	6:28	5:53
10	11.4	6:28	5:52
11	11.4	6:29	5:51
12	11.3	6:30	5:50
13	11.3	6:31	5:49
14	11.3	6:31	5:47
15	11.2	6:32	5:46
16	11.2	6:33	5:45
17	11.2	6:34	5:44
18	11.1	6:34	5:43
19	11.1	6:35	5:42
20	11.1	6:36	5:41
21	11.0	6:37	5:40
22	11.0	6:38	5:39
23	11.0	6:38	5:38
24	11.0	6:39	5:37
25	10.9	6:40	5:36
26	10.9	6:41	5:35
27	10.9	6:42	5:34
28	10.8	6:42	5:33
29	10.8	6:43	5:32
30	10.8	6:44	5:31
31	10.8	6:45	5:30

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.23 kWh/m².

For context, solar energy here swings from a low near 3.45 kWh/m² to a high of 8.29 kWh/m² in June across the year — October's 5.23 kWh/m² falls in the middle.

	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)	5.7	5.7	5.7	5.7	5.6	5.6	5.6	5.5	5.5	5.5	5.4	5.4	5.4	5.3	5.3	5.3	5.2	5.2	5.1	5.1	5.0	5.0	5.0	4.9	4.9	4.8	4.8	4.8	4.7	4.7	4.7
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.7	Bright
2	5.7	Bright
3	5.7	Bright
4	5.7	Bright
5	5.6	Bright
6	5.6	Bright
7	5.6	Bright
8	5.5	Bright
9	5.5	Bright
10	5.5	Bright
11	5.4	Bright
12	5.4	Bright
13	5.4	Bright
14	5.3	Bright
15	5.3	Bright
16	5.3	Bright
17	5.2	Bright
18	5.2	Bright
19	5.1	Bright
20	5.1	Bright
21	5.0	Bright
22	5.0	Bright
23	5.0	Bright
24	4.9	Bright
25	4.9	Bright
26	4.8	Bright
27	4.8	Bright
28	4.8	Bright
29	4.7	Bright
30	4.7	Bright
31	4.7	Bright

Planning a trip in October

Is October a good time to visit Green Valley?

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

7.9

Sightseeing

4th-best month of the year

8.3

Beach & pool

2nd-best month of the year

October is one of the better times to visit Green Valley for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Green Valley in October

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

In October, Green Valley sees daytime highs around 81°F and nights near 56°F. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Green Valley in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Green Valley peaks around June 22 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	4	5	6	9	9	12	11	11	10	7	5	4
Level	Moderate	High	High	Very high	Very high	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	4	Moderate
Feb	5	High
Mar	6	High
Apr	9	Very high
May	9	Very high
Jun	12	Extreme
Jul	11	Extreme
Aug	11	Extreme
Sep	10	Very high
Oct	7	High
Nov	5	Moderate
Dec	4	Moderate

Location & terrain

Where is Green Valley?

Green Valley sits at 31.9°N, 111.0°W, 2,904 ft above sea level, in United States. The nearest listed city is Sahuarita, 7.5 mi away.

Topography around Green Valley

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

Within 2 miles, the terrain around Green Valley has only modest variations in elevation — a maximum elevation change of 351 ft around an average of 2,940 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,159 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,277 ft.

The land around Green Valley is covered by shrubs (46%) and artificial surfaces (33%) within 2 miles, shrubs (78%) within 10 miles, and shrubs (80%) within 50 miles.

2 miles

351 ft

shrubs 46%

10 miles

3,159 ft

shrubs 78%

50 miles

7,277 ft

shrubs 80%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← September Green Valley year-round climate November →Best places to visit in October

October weather nearby: Sahuarita 7.5 mi · Drexel Heights 20 mi · Vail 21 mi · Tucson 25 mi · Rio Rico 27 mi · Flowing Wells 30 mi · Catalina Foothills 31 mi · Tanque Verde 31 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 Green Valley (31.8543°, -110.9937°, elevation 2,904 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).

	Avg high (°F)	Avg low (°F)
1	86	62
2	86	62
3	86	61
4	85	61
5	85	60
6	85	60
7	84	59
8	84	59
9	84	58
10	83	58
11	83	58
12	83	57
13	82	57
14	82	57
15	82	56
16	81	56
17	81	56
18	80	55
19	80	55
20	80	55
21	79	54
22	79	54
23	79	53
24	78	53
25	78	53
26	77	52
27	77	52
28	77	52
29	76	51
30	76	51
31	76	51

	Clearer (%)	Cloudier (%)
1	89	11
2	89	11
3	89	11
4	89	11
5	89	11
6	89	11
7	88	12
8	88	12
9	88	12
10	87	13
11	87	13
12	87	13
13	88	12
14	88	12
15	88	12
16	87	13
17	87	13
18	86	14
19	86	14
20	86	14
21	86	14
22	86	14
23	86	14
24	86	14
25	86	14
26	85	15
27	85	15
28	85	15
29	84	16
30	84	16
31	84	16

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	84	11	4	1
2	85	10	4	1
3	87	10	3	0
4	88	9	3	0
5	89	9	2	0
6	90	8	2	0
7	91	8	1	0
8	92	7	1	0
9	93	6	1	0
10	93	6	1	0
11	93	6	1	0
12	95	5	0	0
13	95	5	0	0
14	96	4	0	0
15	96	4	0	0
16	96	4	0	0
17	97	3	0	0
18	97	3	0	0
19	97	3	0	0
20	98	2	0	0
21	98	2	0	0
22	98	2	0	0
23	98	2	0	0
24	98	2	0	0
25	99	1	0	0
26	99	1	0	0
27	99	1	0	0
28	99	1	0	0
29	99	1	0	0
30	99	1	0	0
31	100	0	0	0

	Avg high (°F)	Avg low (°F)
1	86	62
2	86	62
3	86	61
4	85	61
5	85	60
6	85	60
7	84	59
8	84	59
9	84	58
10	83	58
11	83	58
12	83	57
13	82	57
14	82	57
15	82	56
16	81	56
17	81	56
18	80	55
19	80	55
20	80	55
21	79	54
22	79	54
23	79	53
24	78	53
25	78	53
26	77	52
27	77	52
28	77	52
29	76	51
30	76	51
31	76	51

	Clearer (%)	Cloudier (%)
1	89	11
2	89	11
3	89	11
4	89	11
5	89	11
6	89	11
7	88	12
8	88	12
9	88	12
10	87	13
11	87	13
12	87	13
13	88	12
14	88	12
15	88	12
16	87	13
17	87	13
18	86	14
19	86	14
20	86	14
21	86	14
22	86	14
23	86	14
24	86	14
25	86	14
26	85	15
27	85	15
28	85	15
29	84	16
30	84	16
31	84	16

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	84	11	4	1
2	85	10	4	1
3	87	10	3	0
4	88	9	3	0
5	89	9	2	0
6	90	8	2	0
7	91	8	1	0
8	92	7	1	0
9	93	6	1	0
10	93	6	1	0
11	93	6	1	0
12	95	5	0	0
13	95	5	0	0
14	96	4	0	0
15	96	4	0	0
16	96	4	0	0
17	97	3	0	0
18	97	3	0	0
19	97	3	0	0
20	98	2	0	0
21	98	2	0	0
22	98	2	0	0
23	98	2	0	0
24	98	2	0	0
25	99	1	0	0
26	99	1	0	0
27	99	1	0	0
28	99	1	0	0
29	99	1	0	0
30	99	1	0	0
31	100	0	0	0

	Avg high (°F)	Avg low (°F)
1	86	62
2	86	62
3	86	61
4	85	61
5	85	60
6	85	60
7	84	59
8	84	59
9	84	58
10	83	58
11	83	58
12	83	57
13	82	57
14	82	57
15	82	56
16	81	56
17	81	56
18	80	55
19	80	55
20	80	55
21	79	54
22	79	54
23	79	53
24	78	53
25	78	53
26	77	52
27	77	52
28	77	52
29	76	51
30	76	51
31	76	51

	Clearer (%)	Cloudier (%)
1	89	11
2	89	11
3	89	11
4	89	11
5	89	11
6	89	11
7	88	12
8	88	12
9	88	12
10	87	13
11	87	13
12	87	13
13	88	12
14	88	12
15	88	12
16	87	13
17	87	13
18	86	14
19	86	14
20	86	14
21	86	14
22	86	14
23	86	14
24	86	14
25	86	14
26	85	15
27	85	15
28	85	15
29	84	16
30	84	16
31	84	16

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	84	11	4	1
2	85	10	4	1
3	87	10	3	0
4	88	9	3	0
5	89	9	2	0
6	90	8	2	0
7	91	8	1	0
8	92	7	1	0
9	93	6	1	0
10	93	6	1	0
11	93	6	1	0
12	95	5	0	0
13	95	5	0	0
14	96	4	0	0
15	96	4	0	0
16	96	4	0	0
17	97	3	0	0
18	97	3	0	0
19	97	3	0	0
20	98	2	0	0
21	98	2	0	0
22	98	2	0	0
23	98	2	0	0
24	98	2	0	0
25	99	1	0	0
26	99	1	0	0
27	99	1	0	0
28	99	1	0	0
29	99	1	0	0
30	99	1	0	0
31	100	0	0	0