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Chandler, Arizona climate

BWh Hot desert

Chandler has a seasonal warm-temperate climate (Hot desert, Köppen BWh). The hottest month is July with an average daily high near 103°F, while the coldest is December averaging around 44°F at night. Precipitation totals about 10 inches a year and is strongly seasonal — January alone averages 1.4 inches while June barely receives 0.14 inches.

☀️ Summers

Very hot

Highs near 103°F in July.

About 156 days a year above 90 °F

❄️ Winters

Cool

Lows near 44°F in December.

About 3 freezing nights a year

🌧️ Rain

Fairly dry

About 10 in of rain a year.

Wettest in January

⛅ Sky & trend

Fairly sunny

More sun than cloud through the year.

+0.1 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Chandler climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	64	67	74	82	91	101	103	102	97	87	74	63
Avg temp (°F)	54	57	62	69	78	87	92	91	85	75	63	54
Avg low (°F)	45	46	51	56	65	73	80	80	74	63	51	44
Precipitation (in)	1.4	1.3	1.3	0.3	0.2	0.1	0.8	1.3	0.8	0.6	0.7	1.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	64	67	74	82	91	101
Avg temp (°F)	54	57	62	69	78	87
Avg low (°F)	45	46	51	56	65	73
Precipitation (in)	1.4	1.3	1.3	0.3	0.2	0.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	103	102	97	87	74	63
Avg temp (°F)	92	91	85	75	63	54
Avg low (°F)	80	80	74	63	51	44
Precipitation (in)	0.8	1.3	0.8	0.6	0.7	1.2

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	4	4	3	1	1	0.3	3	4	2	2	2	3
Days with high ≥ 90°F (days)	—	—	1	8	21	28	28	29	26	14	0.6	—
Days with low ≤ 32°F (days)	1	0.3	—	—	—	—	—	—	—	—	0.3	2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	4	4	3	1	1	0.3
Days with high ≥ 90°F (days)	—	—	1	8	21	28
Days with low ≤ 32°F (days)	1	0.3	—	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	3	4	2	2	2	3
Days with high ≥ 90°F (days)	28	29	26	14	0.6	—
Days with low ≤ 32°F (days)	—	—	—	—	0.3	2

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	42	44	38	30	25	20	46	45	29	27	32	42
Clear days (≤ 30% cloud)	14	12	15	18	21	23	10	11	18	20	17	14
Partly cloudy days (30–70%)	9	8	9	8	8	5	14	14	8	6	7	8
Cloudy days (≥ 70%)	8	8	7	4	3	2	8	7	4	5	5	8
Relative humidity (%)	47	45	40	31	23	16	29	35	32	30	35	45
Wind speed (mph)	4.3	4.3	4.4	4.9	4.9	5.0	4.5	4.0	4.3	4.4	4.4	4.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	42	44	38	30	25	20
Clear days (≤ 30% cloud)	14	12	15	18	21	23
Partly cloudy days (30–70%)	9	8	9	8	8	5
Cloudy days (≥ 70%)	8	8	7	4	3	2
Relative humidity (%)	47	45	40	31	23	16
Wind speed (mph)	4.3	4.3	4.4	4.9	4.9	5.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	46	45	29	27	32	42
Clear days (≤ 30% cloud)	10	11	18	20	17	14
Partly cloudy days (30–70%)	14	14	8	6	7	8
Cloudy days (≥ 70%)	8	7	4	5	5	8
Relative humidity (%)	29	35	32	30	35	45
Wind speed (mph)	4.5	4.0	4.3	4.4	4.4	4.2

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Fountain Hills (NOAA GHCN station USC00023190), about 35 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →