- WinterDec–Feb47°68°
- December45°67°
- January46°68°
- February49°71°
- SpringMar–May61°86°
- March54°78°
- April60°86°
- May69°95°
- SummerJun–Aug82°105°
- June78°104°
- July84°107°
- August83°105°
- AutumnSep–Nov65°89°
- September78°100°
- October65°90°
- November53°77°
Phoenix, AZ Weather by Month and Climate Averages
Phoenix, AZ gets 7.2 in of precipitation a year over about 33 rainy days. July is the warmest month (average high 107°F) and December the coldest (average low 45°F).
Phoenix climate at a glance
Desert climate
Phoenix, AZ has hot summers and warm winters. Daytime highs range from about 67°F in December to 107°F in July. August is usually the wettest month. The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 72°F.
How much rain does Phoenix get?
Phoenix gets 7.2 in of precipitation in an average year, spread over about 33 days with measurable rain. That is fewer rainy days than 91% of the US.
August is the wettest month, with 0.9 in. June is the driest, with 0.0 in. August has the most rainy days, about 5.
The longest dry spell in the last five years lasted 159 days, to January 28, 2025.
See where Phoenix ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in Arizona.
Phoenix weather by month
Phoenix weather in January
In January, Phoenix averages a high of 68°F and a low of 46°F. It gets 0.9 in of precipitation over about 4 rainy days. The sun is out about 62% of daylight hours. The January record high is 88°F (1971) and the record low is 19°F (1971). January is one of the most comfortable months to visit.
Phoenix weather in February
In February, Phoenix averages a high of 71°F and a low of 49°F. It gets 0.9 in of precipitation over about 4 rainy days. The sun is out about 70% of daylight hours. The February record high is 92°F (1986) and the record low is 28°F (1985). February is one of the most comfortable months to visit.
Phoenix weather in March
In March, Phoenix averages a high of 78°F and a low of 54°F. It gets 0.8 in of precipitation over about 3 rainy days. The sun is out about 65% of daylight hours. The March record high is 105°F (2026) and the record low is 30°F (1971). March is one of the most comfortable months to visit.
Phoenix weather in April
In April, Phoenix averages a high of 86°F and a low of 60°F. It gets 0.2 in of precipitation over about 2 rainy days. The sun is out about 82% of daylight hours. The April record high is 105°F (1989) and the record low is 39°F (1979).
Phoenix weather in May
In May, Phoenix averages a high of 95°F and a low of 69°F. It gets 0.1 in of precipitation over about 1 rainy days. The sun is out about 88% of daylight hours. The May record high is 113°F (1983) and the record low is 45°F (1975).
Phoenix weather in June
In June, Phoenix averages a high of 104°F and a low of 78°F. It gets 0.0 in of precipitation over about 1 rainy days. The sun is out about 80% of daylight hours. The June record high is 122°F (1990) and the record low is 56°F (1971).
Phoenix weather in July
In July, Phoenix averages a high of 107°F and a low of 84°F. It gets 0.9 in of precipitation over about 4 rainy days. The sun is out about 59% of daylight hours. The July record high is 121°F (1995) and the record low is 68°F (1984).
Phoenix weather in August
In August, Phoenix averages a high of 105°F and a low of 83°F. It gets 0.9 in of precipitation over about 5 rainy days. The sun is out about 60% of daylight hours. The August record high is 118°F (2025) and the record low is 64°F (2008).
Phoenix weather in September
In September, Phoenix averages a high of 100°F and a low of 78°F. It gets 0.6 in of precipitation over about 3 rainy days. The sun is out about 80% of daylight hours. The September record high is 117°F (2024) and the record low is 55°F (1978).
Phoenix weather in October
In October, Phoenix averages a high of 90°F and a low of 65°F. It gets 0.6 in of precipitation over about 2 rainy days. The sun is out about 83% of daylight hours. The October record high is 113°F (2024) and the record low is 34°F (1971).
Phoenix weather in November
In November, Phoenix averages a high of 77°F and a low of 53°F. It gets 0.6 in of precipitation over about 2 rainy days. The sun is out about 75% of daylight hours. The November record high is 99°F (2020) and the record low is 31°F (1979). November is one of the most comfortable months to visit.
Phoenix weather in December
In December, Phoenix averages a high of 67°F and a low of 45°F. It gets 0.7 in of precipitation over about 4 rainy days. The sun is out about 65% of daylight hours. The December record high is 86°F (1980) and the record low is 26°F (1978). December is one of the most comfortable months to visit.
Sunshine, humidity and wind in Phoenix
May is the sunniest month in Phoenix, with sunshine about 88% of daylight hours. July is the cloudiest, at 59%. Over the year the sun shines about 72% of daylight hours. Phoenix is sunnier than 99% of the US.
Humidity peaks in January at 47% and is lowest in May at 14%.
Wind averages 6 mph over the year, and July is the windiest month at 7 mph.
Phoenix has about 173 days a year above 90°F. Phoenix is hotter than 99% of the US.
Thunderstorms occur on about 23 days a year.
See where Phoenix ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.
Phoenix weather records
The hottest temperature on record at the Phoenix station is 122°F, on June 26, 1990. The coldest is 19°F, on January 7, 1971.
The wettest day on record brought 3.3 in of rain, on September 8, 2014.
33 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.9°F per decade since 1970.
The best time to visit Phoenix
The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 72°F.
Winter (December–February) is warm, with average highs around 68°F and lows near 47°F.
Spring (March–May) is hot, with average highs around 86°F and lows near 61°F.
Summer (June–August) is hot, with average highs around 105°F and lows near 82°F.
Autumn (September–November) is hot, with average highs around 89°F and lows near 65°F.
Monthly climate
| Month | Precip | Rain days | Wind | Humidity | Sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|
| January | 0.87 in | 4 | 5 mph | 47% | 62% | 88° | 19° |
| February | 0.87 in | 4 | 6 mph | 36% | 70% | 92° | 28° |
| March | 0.83 in | 3 | 6 mph | 34% | 65% | 105° | 30° |
| April | 0.22 in | 2 | 7 mph | 18% | 82% | 105° | 39° |
| May | 0.13 in | 1 | 7 mph | 14% | 88% | 113° | 45° |
| June | 0.02 in | 1 | 7 mph | 15% | 80% | 122° | 56° |
| July | 0.91 in | 4 | 7 mph | 26% | 59% | 121° | 68° |
| August | 0.93 in | 5 | 7 mph | 31% | 60% | 118° | 64° |
| September | 0.57 in | 3 | 6 mph | 26% | 80% | 117° | 55° |
| October | 0.56 in | 2 | 6 mph | 24% | 83% | 113° | 34° |
| November | 0.57 in | 2 | 5 mph | 28% | 75% | 99° | 31° |
| December | 0.74 in | 4 | 5 mph | 39% | 65% | 86° | 26° |
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Phoenix climate questions
How much rain does Phoenix get?
Phoenix gets 7.2 in of precipitation in an average year, over about 33 rainy days.
What is the wettest month in Phoenix?
August is the wettest month in Phoenix, with 0.9 in. June is the driest, with 0.0 in.
How many rainy days does Phoenix have a year?
Phoenix has about 33 days with measurable rain in an average year. August has the most, about 5.
What is the hottest month in Phoenix?
July is the warmest month in Phoenix, with an average high of 107°F.
What is the coldest month in Phoenix?
December is the coldest month in Phoenix, with an average low of 45°F.
What is the record high temperature in Phoenix?
The record high at the Phoenix station is 122°F, set on June 26, 1990. The record low is 19°F, on January 7, 1971.
What is the sunniest month in Phoenix?
May is the sunniest month in Phoenix, with sunshine about 88% of daylight hours. July is the cloudiest.
What is the best time to visit Phoenix?
The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 72°F.
Source: NOAA GHCN-Daily station PHOENIX AP (7 km away).
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Normals from NOAA GHCN-Daily station PHOENIX AP.