Deer Valley weather in January

In January, Deer Valley sees average daytime highs of 65°F and overnight lows near 43°F, with 1.4 in of rain across 3.6 wet days and about 10 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 63°F in the first days to 66°F by the end. The sky is clear or mostly clear about 57% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of January to 10 h 18 min by month's end. Set against the rest of the year, January is Deer Valley's 11th-clearest and 8th-windiest month. For the whole year in context, see Deer Valley's year-round climate.

Daytime high: 65°; 11th warmest
Overnight low: 43°; 2nd coldest
Rainfall: 1.4 in; 3.6 wet days
Daylight: 10 hours; 7:38 AM – 5:38 PM
Cloud cover: 38%; 11th clearest
Wind: 6 mph; 8th windiest
Solar energy: 3.41 kWh/m²
Travel score: 7.2; out of 10

← December Deer Valley year-round climate February →Best places to visit in January

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 63°F in the first days to 66°F by the end.

A typical January day in Deer Valley reaches about 65°F in the afternoon and slips back to 43°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 56°F and 74°F. Set against its neighbours, January runs on par with December and about 3°F cooler than February.

	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)	63	63	63	63	63	63	64	64	64	64	64	64	64	65	65	65	65	65	65	65	65	65	65	65	65	66	66	66	66	66	66
Avg low (°F)	42	42	43	43	43	43	43	43	43	43	43	43	43	44	44	44	44	44	44	44	44	44	44	44	44	44	44	44	44	44	44

	Avg high (°F)	Avg low (°F)
1	63	42
2	63	42
3	63	43
4	63	43
5	63	43
6	63	43
7	64	43
8	64	43
9	64	43
10	64	43
11	64	43
12	64	43
13	64	43
14	65	44
15	65	44
16	65	44
17	65	44
18	65	44
19	65	44
20	65	44
21	65	44
22	65	44
23	65	44
24	65	44
25	65	44
26	66	44
27	66	44
28	66	44
29	66	44
30	66	44
31	66	44

How January really feels in Deer Valley

Once humidity and wind are folded in, January 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

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

Deer Valley weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Daylight (hours)	Travel score
Jan	65° / 43°	1.4	3.6	10	7.2
Feb	68° / 46°	1.6	4.4	10.7	7.4
Mar	74° / 51°	1.1	3.1	11.7	8.3
Apr	82° / 57°	0.3	1.3	12.8	7.8
May	91° / 66°	0.1	0.7	13.7	4.8
Jun	100° / 75°	0.1	0.3	14.2	1.4
Jul	103° / 82°	0.7	3	14	0.3
Aug	101° / 81°	0.9	3.9	13.3	0.8
Sep	96° / 74°	0.8	3.1	12.2	2.7
Oct	86° / 62°	0.7	2.1	11.2	6.6
Nov	73° / 51°	0.8	2.2	10.3	8.5
Dec	64° / 43°	1.2	3.4	9.8	6.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 31%.

	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 (%)	68	68	68	68	67	67	68	68	69	69	70	69	69	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70
Cloudier (%)	32	32	32	32	33	33	32	32	31	31	30	31	31	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30

	Clearer (%)	Cloudier (%)
1	68	32
2	68	32
3	68	32
4	68	32
5	67	33
6	67	33
7	68	32
8	68	32
9	69	31
10	69	31
11	70	30
12	69	31
13	69	31
14	70	30
15	70	30
16	70	30
17	70	30
18	70	30
19	70	30
20	70	30
21	70	30
22	70	30
23	70	30
24	70	30
25	70	30
26	70	30
27	70	30
28	70	30
29	70	30
30	70	30
31	70	30

Chance of precipitation in January

Any precipitation

Deer Valley gets around 1.4 in of rain over 3.6 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 12% and peaks near 13% 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 (%)	12	12	12	12	12	13	13	13	13	13	12	12	12	12	12	11	11	11	11	11	11	11	11	11	11	10	10	10	10	11	11

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

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January 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 January

Winds average 6 mph in January.

Across January, daily wind ranges from about 5 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)	5	5	5	5	5	5	5	5	5	5	5	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	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	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 January

DaylightNight

Daylight runs from about 9 h 48 min at the start of January to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:38 AM to 7:32 AM, and sunset from 5:26 PM to 5:52 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)	9.8	9.8	9.8	9.8	9.8	9.8	9.9	9.9	9.9	9.9	9.9	9.9	9.9	10.0	10.0	10.0	10.0	10.0	10.0	10.1	10.1	10.1	10.1	10.2	10.2	10.2	10.2	10.2	10.3	10.3	10.3
Sunrise (AM)	7:38	7:38	7:38	7:38	7:38	7:39	7:39	7:39	7:39	7:39	7:39	7:39	7:39	7:38	7:38	7:38	7:38	7:38	7:37	7:37	7:37	7:36	7:36	7:36	7:35	7:35	7:34	7:34	7:33	7:33	7:32
Sunset (PM)	5:26	5:26	5:27	5:28	5:29	5:29	5:30	5:31	5:32	5:32	5:33	5:34	5:35	5:36	5:37	5:38	5:38	5:39	5:40	5:41	5:42	5:43	5:44	5:45	5:46	5:47	5:48	5:49	5:50	5:51	5:52

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.8	7:38	5:26
2	9.8	7:38	5:26
3	9.8	7:38	5:27
4	9.8	7:38	5:28
5	9.8	7:38	5:29
6	9.8	7:39	5:29
7	9.9	7:39	5:30
8	9.9	7:39	5:31
9	9.9	7:39	5:32
10	9.9	7:39	5:32
11	9.9	7:39	5:33
12	9.9	7:39	5:34
13	9.9	7:39	5:35
14	10.0	7:38	5:36
15	10.0	7:38	5:37
16	10.0	7:38	5:38
17	10.0	7:38	5:38
18	10.0	7:38	5:39
19	10.0	7:37	5:40
20	10.1	7:37	5:41
21	10.1	7:37	5:42
22	10.1	7:36	5:43
23	10.1	7:36	5:44
24	10.2	7:36	5:45
25	10.2	7:35	5:46
26	10.2	7:35	5:47
27	10.2	7:34	5:48
28	10.2	7:34	5:49
29	10.3	7:33	5:50
30	10.3	7:33	5:51
31	10.3	7:32	5:52

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.41 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 — January's 3.41 kWh/m² sits near the bottom.

	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)	3.2	3.2	3.2	3.2	3.2	3.2	3.2	3.3	3.3	3.3	3.3	3.3	3.4	3.4	3.4	3.4	3.4	3.5	3.5	3.5	3.5	3.6	3.6	3.6	3.7	3.7	3.8	3.8	3.8	3.9	3.9
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	3.2	Moderate
2	3.2	Moderate
3	3.2	Moderate
4	3.2	Moderate
5	3.2	Moderate
6	3.2	Moderate
7	3.2	Moderate
8	3.3	Moderate
9	3.3	Moderate
10	3.3	Moderate
11	3.3	Moderate
12	3.3	Moderate
13	3.4	Moderate
14	3.4	Moderate
15	3.4	Moderate
16	3.4	Moderate
17	3.4	Moderate
18	3.5	Moderate
19	3.5	Moderate
20	3.5	Moderate
21	3.5	Moderate
22	3.6	Moderate
23	3.6	Moderate
24	3.6	Moderate
25	3.7	Moderate
26	3.7	Moderate
27	3.8	Moderate
28	3.8	Moderate
29	3.8	Moderate
30	3.9	Moderate
31	3.9	Moderate

Planning a trip in January

Is January a good time to visit Deer Valley?

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

7.2

Sightseeing

5th-best month of the year

2.5

Beach & pool

11th-best month of the year

January is one of the better times to visit Deer Valley for general sightseeing.

What to pack for Deer Valley in January

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

In January, Deer Valley sees daytime highs around 65°F and nights near 43°F. Worth packing: a warm layer. About 4 days see rain.

a warm layer

UV index in Deer Valley in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 3 — 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	5	5	7	9	11	11	11	9	6	4	3
Level	Moderate	Moderate	Moderate	High	Very high	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	5	Moderate
Mar	5	Moderate
Apr	7	High
May	9	Very high
Jun	11	Extreme
Jul	11	Extreme
Aug	11	Extreme
Sep	9	Very high
Oct	6	High
Nov	4	Moderate
Dec	3	Moderate

Air quality in Deer Valley in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January 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).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	10	11	11	12	12	17	15	12	11	13	10	9
Level	Good	Good	Good	Moderate	Moderate	Moderate	Moderate	Good	Good	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	10	Good
Feb	11	Good
Mar	11	Good
Apr	12	Moderate
May	12	Moderate
Jun	17	Moderate
Jul	15	Moderate
Aug	12	Good
Sep	11	Good
Oct	13	Moderate
Nov	10	Good
Dec	9	Good

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

artificial surfaces 53%

10 miles

1,299 ft

artificial surfaces 49%

50 miles

7,133 ft

shrubs 55%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

← December Deer Valley year-round climate February →Best places to visit in January

January 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

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).

	Avg high (°F)	Avg low (°F)
1	63	42
2	63	42
3	63	43
4	63	43
5	63	43
6	63	43
7	64	43
8	64	43
9	64	43
10	64	43
11	64	43
12	64	43
13	64	43
14	65	44
15	65	44
16	65	44
17	65	44
18	65	44
19	65	44
20	65	44
21	65	44
22	65	44
23	65	44
24	65	44
25	65	44
26	66	44
27	66	44
28	66	44
29	66	44
30	66	44
31	66	44

	Clearer (%)	Cloudier (%)
1	68	32
2	68	32
3	68	32
4	68	32
5	67	33
6	67	33
7	68	32
8	68	32
9	69	31
10	69	31
11	70	30
12	69	31
13	69	31
14	70	30
15	70	30
16	70	30
17	70	30
18	70	30
19	70	30
20	70	30
21	70	30
22	70	30
23	70	30
24	70	30
25	70	30
26	70	30
27	70	30
28	70	30
29	70	30
30	70	30
31	70	30

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

	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	63	42
2	63	42
3	63	43
4	63	43
5	63	43
6	63	43
7	64	43
8	64	43
9	64	43
10	64	43
11	64	43
12	64	43
13	64	43
14	65	44
15	65	44
16	65	44
17	65	44
18	65	44
19	65	44
20	65	44
21	65	44
22	65	44
23	65	44
24	65	44
25	65	44
26	66	44
27	66	44
28	66	44
29	66	44
30	66	44
31	66	44

	Clearer (%)	Cloudier (%)
1	68	32
2	68	32
3	68	32
4	68	32
5	67	33
6	67	33
7	68	32
8	68	32
9	69	31
10	69	31
11	70	30
12	69	31
13	69	31
14	70	30
15	70	30
16	70	30
17	70	30
18	70	30
19	70	30
20	70	30
21	70	30
22	70	30
23	70	30
24	70	30
25	70	30
26	70	30
27	70	30
28	70	30
29	70	30
30	70	30
31	70	30

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

	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	63	42
2	63	42
3	63	43
4	63	43
5	63	43
6	63	43
7	64	43
8	64	43
9	64	43
10	64	43
11	64	43
12	64	43
13	64	43
14	65	44
15	65	44
16	65	44
17	65	44
18	65	44
19	65	44
20	65	44
21	65	44
22	65	44
23	65	44
24	65	44
25	65	44
26	66	44
27	66	44
28	66	44
29	66	44
30	66	44
31	66	44

	Clearer (%)	Cloudier (%)
1	68	32
2	68	32
3	68	32
4	68	32
5	67	33
6	67	33
7	68	32
8	68	32
9	69	31
10	69	31
11	70	30
12	69	31
13	69	31
14	70	30
15	70	30
16	70	30
17	70	30
18	70	30
19	70	30
20	70	30
21	70	30
22	70	30
23	70	30
24	70	30
25	70	30
26	70	30
27	70	30
28	70	30
29	70	30
30	70	30
31	70	30

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

	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