San Tan Valley weather in March

In March, San Tan Valley sees average daytime highs of 75°F and overnight lows near 50°F, with 1.1 in of rain across 3 wet days and about 11.7 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 71°F in the first days to 78°F by the end. The sky is clear or mostly clear about 61% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is San Tan Valley's 7th-clearest and 4th-windiest month. For the whole year in context, see San Tan Valley's year-round climate.

Daytime high: 75°; 8th warmest
Overnight low: 50°; 4th coldest
Rainfall: 1.1 in; 3 wet days
Daylight: 11 h 42 min; 6:43 AM – 6:28 PM
Cloud cover: 34%; 7th clearest
Wind: 6 mph; 4th windiest
Solar energy: 5.95 kWh/m²
Travel score: 8.4; out of 10

San Tan Valley is unincorporated community in Pinal County, Arizona, United States of America.

Founded: 2009

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

← February San Tan Valley year-round climate April →Best places to visit in March

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 71°F in the first days to 78°F by the end.

A typical March day in San Tan Valley reaches about 75°F in the afternoon and slips back to 50°F overnight — a 25°F spread between the day's warmth and the night's chill. On most days the high lands between 63°F and 86°F. Set against its neighbours, March runs about 7°F warmer than February and about 8°F cooler than April.

	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)	71	71	71	72	72	73	73	73	74	74	74	75	75	75	76	76	76	76	77	77	77	77	77	77	77	78	78	78	78	78	78
Avg low (°F)	47	47	47	48	48	48	49	49	49	49	49	50	50	50	51	51	51	51	51	51	52	52	52	52	52	52	52	53	53	53	53

	Avg high (°F)	Avg low (°F)
1	71	47
2	71	47
3	71	47
4	72	48
5	72	48
6	73	48
7	73	49
8	73	49
9	74	49
10	74	49
11	74	49
12	75	50
13	75	50
14	75	50
15	76	51
16	76	51
17	76	51
18	76	51
19	77	51
20	77	51
21	77	52
22	77	52
23	77	52
24	77	52
25	77	52
26	78	52
27	78	52
28	78	53
29	78	53
30	78	53
31	78	53

How March really feels in San Tan Valley

Once humidity and wind are folded in, March 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

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

San Tan Valley weather by month

How March compares with the rest of the year at a glance. March is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Daylight (hours)	Travel score
Jan	65° / 43°	1.5	4.2	10.1	7.2
Feb	69° / 46°	1.6	4.4	10.8	7.5
Mar	75° / 50°	1.1	3	11.7	8.4
Apr	83° / 56°	0.3	1.4	12.8	7.5
May	92° / 65°	0.2	0.7	13.7	4.4
Jun	101° / 74°	0.1	0.6	14.2	1.0
Jul	103° / 81°	0.8	3.8	14	0.3
Aug	101° / 80°	1.1	4.9	13.2	0.8
Sep	97° / 74°	1.0	3.2	12.2	2.5
Oct	87° / 62°	0.7	2.4	11.2	6.3
Nov	74° / 51°	0.7	2.5	10.3	8.5
Dec	65° / 43°	1.3	4.3	9.8	7.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 61% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 12% of March, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up 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 (%)	69	69	70	70	71	72	72	72	73	73	73	73	74	74	74	74	74	74	73	73	73	72	73	73	73	73	74	74	74	75	76
Cloudier (%)	31	31	30	30	29	28	28	28	27	27	27	27	26	26	26	26	26	26	27	27	27	28	27	27	27	27	26	26	26	25	24

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	70	30
4	70	30
5	71	29
6	72	28
7	72	28
8	72	28
9	73	27
10	73	27
11	73	27
12	73	27
13	74	26
14	74	26
15	74	26
16	74	26
17	74	26
18	74	26
19	73	27
20	73	27
21	73	27
22	72	28
23	73	27
24	73	27
25	73	27
26	73	27
27	74	26
28	74	26
29	74	26
30	75	25
31	76	24

Chance of precipitation in March

Any precipitation

San Tan Valley gets around 1.1 in of rain over 3 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 10% and peaks near 14% 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 (%)	14	14	13	13	13	13	12	12	12	11	11	11	11	10	10	10	9	9	9	9	9	9	9	9	9	9	8	8	8	8	8

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

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March 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 March

Winds average 6 mph in March.

Across March, 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	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	5	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 March

DaylightNight

Daylight runs from about 11 h 12 min at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over March. Sunrise moves from 7:02 AM to 6:23 AM, and sunset from 6:16 PM to 6:39 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)	11.2	11.3	11.3	11.3	11.4	11.4	11.4	11.5	11.5	11.5	11.6	11.6	11.6	11.7	11.7	11.7	11.8	11.8	11.9	11.9	11.9	12.0	12.0	12.0	12.1	12.1	12.1	12.2	12.2	12.2	12.3
Sunrise (AM)	7:02	7:01	7:00	6:59	6:58	6:56	6:55	6:54	6:53	6:51	6:50	6:49	6:47	6:46	6:45	6:43	6:42	6:41	6:39	6:38	6:37	6:35	6:34	6:33	6:31	6:30	6:28	6:27	6:26	6:24	6:23
Sunset (PM)	6:16	6:17	6:18	6:19	6:19	6:20	6:21	6:22	6:23	6:23	6:24	6:25	6:26	6:27	6:27	6:28	6:29	6:30	6:30	6:31	6:32	6:33	6:33	6:34	6:35	6:36	6:36	6:37	6:38	6:39	6:39

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.2	7:02	6:16
2	11.3	7:01	6:17
3	11.3	7:00	6:18
4	11.3	6:59	6:19
5	11.4	6:58	6:19
6	11.4	6:56	6:20
7	11.4	6:55	6:21
8	11.5	6:54	6:22
9	11.5	6:53	6:23
10	11.5	6:51	6:23
11	11.6	6:50	6:24
12	11.6	6:49	6:25
13	11.6	6:47	6:26
14	11.7	6:46	6:27
15	11.7	6:45	6:27
16	11.7	6:43	6:28
17	11.8	6:42	6:29
18	11.8	6:41	6:30
19	11.9	6:39	6:30
20	11.9	6:38	6:31
21	11.9	6:37	6:32
22	12.0	6:35	6:33
23	12.0	6:34	6:33
24	12.0	6:33	6:34
25	12.1	6:31	6:35
26	12.1	6:30	6:36
27	12.1	6:28	6:36
28	12.2	6:27	6:37
29	12.2	6:26	6:38
30	12.2	6:24	6:39
31	12.3	6:23	6:39

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.95 kWh/m².

For context, solar energy here swings from a low near 3.19 kWh/m² to a high of 8.45 kWh/m² in June across the year — March's 5.95 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)	5.1	5.2	5.2	5.3	5.3	5.4	5.5	5.5	5.6	5.6	5.7	5.7	5.8	5.8	5.9	6.0	6.0	6.1	6.1	6.2	6.2	6.3	6.3	6.4	6.4	6.5	6.5	6.6	6.6	6.7	6.7
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	5.1	Bright
2	5.2	Bright
3	5.2	Bright
4	5.3	Bright
5	5.3	Bright
6	5.4	Bright
7	5.5	Bright
8	5.5	Bright
9	5.6	Bright
10	5.6	Bright
11	5.7	Bright
12	5.7	Bright
13	5.8	Bright
14	5.8	Bright
15	5.9	Bright
16	6.0	Bright
17	6.0	Intense
18	6.1	Intense
19	6.1	Intense
20	6.2	Intense
21	6.2	Intense
22	6.3	Intense
23	6.3	Intense
24	6.4	Intense
25	6.4	Intense
26	6.5	Intense
27	6.5	Intense
28	6.6	Intense
29	6.6	Intense
30	6.7	Intense
31	6.7	Intense

Planning a trip in March

Is March a good time to visit San Tan Valley?

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

8.4

Sightseeing

2nd-best month of the year

7.0

Beach & pool

4th-best month of the year

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

What to pack for San Tan Valley in March

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

In March, San Tan Valley sees daytime highs around 75°F and nights near 50°F. Worth packing: light clothes and sun protection. About 3 days see rain.

light clothessun protection

UV index in San Tan Valley in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Tan Valley peaks around June 23 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 — every month of the year.

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

	UV index (midday)	Level
Jan	4	Moderate
Feb	5	Moderate
Mar	5	Moderate
Apr	7	Very 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 San Tan Valley in March

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in San Tan Valley is worst in June — around 28 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 12 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)	13	13	14	14	14	28	14	13	13	12	13	13
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	13	Moderate
Feb	13	Moderate
Mar	14	Moderate
Apr	14	Moderate
May	14	Moderate
Jun	28	Moderate
Jul	14	Moderate
Aug	13	Moderate
Sep	13	Moderate
Oct	12	Moderate
Nov	13	Moderate
Dec	13	Moderate

Location & terrain

Where is San Tan Valley?

San Tan Valley sits at 33.2°N, 111.5°W, 1,516 ft above sea level, in United States. The nearest listed city is Queen Creek, 7.5 mi away.

Topography around San Tan Valley

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

Within 2 miles, the terrain around San Tan Valley has only modest variations in elevation — a maximum elevation change of 92 ft around an average of 1,516 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,066 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,251 ft.

The land around San Tan Valley is covered by cropland (40%) and bare terrain (25%) within 2 miles, bare terrain (28%), grassland (27%) and shrubs (25%) within 10 miles, and shrubs (58%) within 50 miles.

2 miles

92 ft

cropland 40%

10 miles

1,066 ft

bare terrain 28%

50 miles

7,251 ft

shrubs 58%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← February San Tan Valley year-round climate April →Best places to visit in March

March weather nearby: Queen Creek 7.5 mi · Florence 14 mi · Apache Junction 16 mi · Gilbert 19 mi · Chandler 20 mi · Mesa 24 mi · Casa Grande 25 mi · Tempe 27 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 San Tan Valley (33.1911°, -111.528°, elevation 1,516 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	71	47
2	71	47
3	71	47
4	72	48
5	72	48
6	73	48
7	73	49
8	73	49
9	74	49
10	74	49
11	74	49
12	75	50
13	75	50
14	75	50
15	76	51
16	76	51
17	76	51
18	76	51
19	77	51
20	77	51
21	77	52
22	77	52
23	77	52
24	77	52
25	77	52
26	78	52
27	78	52
28	78	53
29	78	53
30	78	53
31	78	53

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	70	30
4	70	30
5	71	29
6	72	28
7	72	28
8	72	28
9	73	27
10	73	27
11	73	27
12	73	27
13	74	26
14	74	26
15	74	26
16	74	26
17	74	26
18	74	26
19	73	27
20	73	27
21	73	27
22	72	28
23	73	27
24	73	27
25	73	27
26	73	27
27	74	26
28	74	26
29	74	26
30	75	25
31	76	24

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

	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	71	47
2	71	47
3	71	47
4	72	48
5	72	48
6	73	48
7	73	49
8	73	49
9	74	49
10	74	49
11	74	49
12	75	50
13	75	50
14	75	50
15	76	51
16	76	51
17	76	51
18	76	51
19	77	51
20	77	51
21	77	52
22	77	52
23	77	52
24	77	52
25	77	52
26	78	52
27	78	52
28	78	53
29	78	53
30	78	53
31	78	53

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	70	30
4	70	30
5	71	29
6	72	28
7	72	28
8	72	28
9	73	27
10	73	27
11	73	27
12	73	27
13	74	26
14	74	26
15	74	26
16	74	26
17	74	26
18	74	26
19	73	27
20	73	27
21	73	27
22	72	28
23	73	27
24	73	27
25	73	27
26	73	27
27	74	26
28	74	26
29	74	26
30	75	25
31	76	24

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

	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	71	47
2	71	47
3	71	47
4	72	48
5	72	48
6	73	48
7	73	49
8	73	49
9	74	49
10	74	49
11	74	49
12	75	50
13	75	50
14	75	50
15	76	51
16	76	51
17	76	51
18	76	51
19	77	51
20	77	51
21	77	52
22	77	52
23	77	52
24	77	52
25	77	52
26	78	52
27	78	52
28	78	53
29	78	53
30	78	53
31	78	53

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	70	30
4	70	30
5	71	29
6	72	28
7	72	28
8	72	28
9	73	27
10	73	27
11	73	27
12	73	27
13	74	26
14	74	26
15	74	26
16	74	26
17	74	26
18	74	26
19	73	27
20	73	27
21	73	27
22	72	28
23	73	27
24	73	27
25	73	27
26	73	27
27	74	26
28	74	26
29	74	26
30	75	25
31	76	24

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

	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