Weather in Arizona

Calculated from weather data of Phoenix Sky Harbor International Airport (KPHX) between 2021 and 2025.

Maximum temperatures (°F)

Month	Average	2025	2024	2023	2022	2021
January	67.0	67.0	66.0	64.0	69.0	67.0
February	71.0	79.0	72.0	69.0	72.0	73.0
March	78.0	80.0	77.0	73.0	80.0	77.0
April	88.0		87.0	88.0	90.0	90.0
May	95.0	95.0	96.0	96.0	97.0	96.0
June	106.0		108.0	102.0	106.0	108.0
July	108.0		112.0	114.0	107.0	104.0
August	107.0		109.0	109.0	103.0	103.0
September	102.0		106.0	103.0	101.0	100.0
October	91.0		98.0	94.0	88.0	87.0
November	78.0		76.0	80.0	72.0	82.0
December	69.0		75.0	72.0	63.0	69.0
Average	88.0	80.0	90.0	89.0	88.0	88.0

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2025	2024	2023	2022	2021
January	47.0	45	47	45	47	46
February	49.0	54	52	47	48	50
March	55.0	57	54	52	55	53
April	63.0		62	61	63	64
May	71.0	72	71	71	71	71
June	81.0		85	76	83	83
July	88.0		91	92	87	85
August	86.0		89	89	84	83
September	80.0		83	80	82	79
October	67.0		72	70	68	64
November	56.0		52	59	49	58
December	48.0		50	50	47	50
Average	65.0	57.0	67.0	66.0	66.0	65.0

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2025	2024	2023	2022	2021
86 °F or warmer	35	199	202	199	198
77 °F or warmer	65	256	247	246	264
68 °F or warmer	96	327	310	308	324
32 °F or colder	0	0	0	0	0

Precipitation (%)

Month	Average	2025	2024	2023	2022	2021
January	1.7	0	5	5	0	3
February	2.4	0	3	1	1	0
March	1.6	3	3	3	1	0
April	0.0		0	0	0	0
May	0.2	1	1	0	0	0
June	0.1		0	0	0	1
July	0.8		0	0	1	3
August	0.3		0	0	1	1
September	0.9		0	1	1	3
October	0.6		0	0	0	0
November	0.5		0	1	0	0
December	1.9		0	2	4	3
Average	0.9	1.2	0.9	1.0	0.7	1.1

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (miles per hour)

Month	Average	2025	2024	2023	2022	2021
January	5.8	6	6	6	6	6
February	6.9	6	7	9	7	7
March	7.2	8	7	7	8	8
April	7.4		7	7	8	8
May	7.4	8	7	8	7	7
June	7.0		7	7	7	8
July	7.1		7	7	7	6
August	6.6		7	7	6	6
September	6.6		8	7	6	6
October	6.4		6	6	7	7
November	5.4		5	6	6	5
December	5.1		5	5	5	5
Average	6.7	6.9	6.6	6.8	6.8	6.6

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2025	2024	2023	2022	2021
January	E	SE	SE	E	E
February	S	S	S	E	W
March	SW	S	SW	SW	S
April		SW	SW	SW	SW
May	S	SW	S	SW	S
June		S	S	S	SW
July		W	W	W	S
August		S	S	SW	SE
September		SE	S	SE	SE
October		S	SE	E	SE
November		W	E	SE	E
December		SE	E	SE	SE

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Arizona weather Q&A

What is the warmest month in Arizona?

The warmest month is July with an average temperature of 108 °F over the past years.

What is the coldest month in Arizona?

The coldest month is January with an average daytime temperature of 67 °F in the past few years.

Which month is the wettest in Arizona?

Chance of precipitation is the highest in February with a probability of around 2.4 %.

Which month is the driest in Arizona?

The least rainfall and snow can be expected in April. The probability is about 0.1 %.