Weather in Arizona

Calculated from weather data of Phoenix Sky Harbor International Airport (KPHX) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	67.0	66.0	64.0	69.0	67.0	68.0
February	71.0	72.0	69.0	72.0	73.0	71.0
March	78.0	77.0	73.0	80.0	77.0	75.0
April	89.0		88.0	90.0	90.0	87.0
May	95.0		96.0	97.0	96.0	99.0
June	105.0		102.0	106.0	108.0	105.0
July	108.0		114.0	107.0	104.0	110.0
August	106.0		109.0	103.0	103.0	110.0
September	101.0		103.0	101.0	100.0	104.0
October	90.0		94.0	88.0	87.0	94.0
November	78.0		80.0	72.0	82.0	80.0
December	68.0		72.0	63.0	69.0	68.0
Average	86.0	72.0	89.0	88.0	88.0	89.0

16th highest temperature of United States

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	47.0	47	45	47	46	46
February	49.0	52	47	48	50	48
March	55.0	54	52	55	53	55
April	63.0		61	63	64	62
May	70.0		71	71	71	74
June	81.0		76	83	83	80
July	87.0		92	87	85	89
August	86.0		89	84	83	89
September	80.0		80	82	79	80
October	67.0		70	68	64	68
November	56.0		59	49	58	56
December	48.0		50	47	50	45
Average	64.0	51.0	66.0	66.0	65.0	66.0

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
86 °F or warmer	0	202	199	198	199
77 °F or warmer	28	247	246	264	237
68 °F or warmer	59	310	308	324	316
32 °F or colder	0	0	0	0	0

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	1.9	5	5	0	3	1
February	2.7	3	1	1	0	2
March	1.5	3	3	1	0	3
April	0.0		0	0	0	0
May	0.1		0	0	0	0
June	0.1		0	0	1	0
July	0.8		0	1	3	0
August	0.4		0	1	1	0
September	1.1		1	1	3	0
October	0.7		0	0	0	0
November	0.5		1	0	0	0
December	2.1		2	4	3	1
Average	1.2	3.5	1.0	0.7	1.1	0.5

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	2024	2023	2022	2021	2020
January	5.7	6	6	6	6	4
February	7.0	7	9	7	7	7
March	7.1	7	7	8	8	7
April	7.5		7	8	8	7
May	7.4		8	7	7	7
June	7.0		7	7	8	7
July	7.1		7	7	6	7
August	6.5		7	6	6	6
September	6.5		7	6	6	6
October	6.5		6	7	7	6
November	5.5		6	6	5	5
December	5.2		5	5	5	6
Average	6.6	6.6	6.8	6.8	6.6	6.3

Average wind speed

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

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	SE	SE	E	E	E
February	S	S	E	W	E
March	S	SW	SW	S	S
April		SW	SW	SW	S
May		S	SW	S	SW
June		S	S	SW	S
July		W	W	S	W
August		S	SW	SE	W
September		S	SE	SE	SE
October		SE	E	SE	SE
November		E	SE	E	S
December		E	SE	SE	E

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 2.7 %.

Which month is the driest in Arizona?

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