Monthly weather forecast and climate
Phoenix, AZ

The city of Phoenix, Arizona at dusk
The city of Phoenix, Arizona at dusk
January, the same as December, is another enjoyable winter month in Phoenix, Arizona, with average temperature fluctuating between 47.5°F (8.6°C) and 64.2°F (17.9°C). In January, the average high-temperature is practically the same as in December - a still comfortable 64.2°F (17.9°C). Weather in January »

February, the last month of the winter, in Phoenix, is another comfortable month, with average temperature fluctuating between 50.2°F (10.1°C) and 67.6°F (19.8°C). In Phoenix, the average high-temperature is relatively the same as in January - a still enjoyable 67.6°F (19.8°C). Weather in February »

March, the first month of the spring, in Phoenix, is a moderately hot month, with average temperature ranging between max 76.1°F (24.5°C) and min 55.9°F (13.3°C). In March, the average high-temperature slightly increases, from a comfortable 67.6°F (19.8°C) in February, to a warm 76.1°F (24.5°C). Weather in March »

April, the same as March, is a moderately hot spring month in Phoenix, Arizona, with average temperature ranging between min 61.3°F (16.3°C) and max 83.1°F (28.4°C). In April, the average high-temperature marginally rises, from 76.1°F (24.5°C) in March, to a still warm 83.1°F (28.4°C). Weather in April »

The last month of the spring, May, is a hot month in Phoenix, Arizona, with average temperature ranging between max 90.9°F (32.7°C) and min 67.6°F (19.8°C). In Phoenix, Arizona, the average high-temperature in May marginally rises, from a warm 83.1°F (28.4°C) in April, to a hot 90.9°F (32.7°C). Weather in May »

The first month of the summer, June, is a sweltering month in Phoenix, Arizona, with average temperature fluctuating between 102°F (38.9°C) and 76.6°F (24.8°C). In June, the average high-temperature rises, from a hot 90.9°F (32.7°C) in May, to a sweltering 102°F (38.9°C). Weather in June »

July, like June, in Phoenix, Arizona, is another torrid summer month, with temperature in the range of an average high of 103.6°F (39.8°C) and an average low of 84°F (28.9°C). The warmest month is July, with an average high-temperature of 103.6°F (39.8°C) and an average low-temperature of 84°F (28.9°C). Weather in July »

The last month of the summer, August, is another torrid month in Phoenix, Arizona, with temperature in the range of an average low of 84.7°F (29.3°C) and an average high of 102.6°F (39.2°C). In August, the average high-temperature is almost the same as in July - a still very hot 102.6°F (39.2°C). Weather in August »

September, the first month of the autumn, in Phoenix, is also a sweltering month, with temperature in the range of an average high of 96.3°F (35.7°C) and an average low of 78.8°F (26°C). In Phoenix, the average high-temperature in September marginally drops, from a torrid 102.6°F (39.2°C) in August, to a still very hot 96.3°F (35.7°C). Weather in September »

October, the same as September, is a moderately hot autumn month in Phoenix, Arizona, with average temperature fluctuating between 67.3°F (19.6°C) and 85.1°F (29.5°C). In Phoenix, the average high-temperature decreases, from a sweltering 96.3°F (35.7°C) in September, to a moderately hot 85.1°F (29.5°C). Weather in October »

November, the last month of the autumn, in Phoenix, is also a moderately hot month, with average temperature fluctuating between 56.3°F (13.5°C) and 73.6°F (23.1°C). In November, the average high-temperature decreases, from 85.1°F (29.5°C) in October, to a still warm 73.6°F (23.1°C). Weather in November »

December, the first month of the winter, in Phoenix, is still a comfortable month, with average temperature varying between 63°F (17.2°C) and 47.8°F (8.8°C). The coldest month is December, with an average high-temperature of 63°F (17.2°C) and an average low-temperature of 47.8°F (8.8°C). Weather in December »

How many days does it rain in Phoenix?

In Phoenix, Arizona, during the entire year, the rain falls for 44.6 days and collects up to 5.04" (128mm) of precipitation.

How much does it snow in Phoenix?

In Phoenix, during the entire year, snow aggregates up to 0.04" (1mm).

When it does not snow in Phoenix?

In Phoenix snow does not fall in January through August, October through December.

What is the driest month in Phoenix?

May and June are months with the least rain in Phoenix when the rain falls for 1.3 days and typically aggregates up to 0.08" (2mm) of rain.

What is the month with the highest UV index in Phoenix?

Months with the highest UV index are May through August, with an average maximum UV index of 8.

What is the least humid month in Phoenix?

June is the least humid month in Phoenix, Arizona, with an average relative humidity of 16%.

When are the longest days in Phoenix?

With an average of 14.3h of daylight, June has the longest days of the year.

What month has the most sunshine in Phoenix?

With an average of 12.1h of sunshine, June has the most sunshine of the year.

What is the warmest month in Phoenix?

July is the warmest month in Phoenix, Arizona, with an average high-temperature of 103.6°F (39.8°C) and an average low-temperature of 84°F (28.9°C).

What is the wettest month in Phoenix?

July is the month with the most rainfall in Phoenix. Rain falls for 7.8 days and accumulates 0.75" (19mm) of precipitation.

When does it snow in Phoenix?

September is the only month when snow falls in Phoenix, Arizona.

What is the snowiest month in Phoenix?

The month with the most snowfall in Phoenix, Arizona, is September when snow falls for 0.1 days and typically aggregates up to 0.04" (1mm) of snow.

What is the coldest month in Phoenix?

The coldest month is December, with an average high-temperature of 63°F (17.2°C) and an average low-temperature of 47.8°F (8.8°C).

What is the most humid month in Phoenix?

December is the most humid month in Phoenix, Arizona, with an average relative humidity of 43%.

What is the month with the shortest days in Phoenix?

With an average of 10h of daylight, December has the shortest days of the year in Phoenix, Arizona.

What is the month with the least sunshine in Phoenix?

With an average of 6.8h of sunshine, December has the least sunshine of the year in Phoenix.

What is the month with the lowest UV index in Phoenix?

With an average maximum UV index of 3, December is the month with the lowest UV index in Phoenix, Arizona.
Average temperature - Phoenix, AZ
Average pressure - Phoenix, AZ

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.81").

Average wind speed - Phoenix, AZ

The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is December (4.3mph).

Average rainfall - Phoenix, AZ

The wettest month (with the highest rainfall) is July (0.75").
The driest months (with the least rainfall) are May and June (0.08").

Average rainfall days - Phoenix, AZ
Average snowfall - Phoenix, AZ

The month with the highest snowfall is September (0.04").
Months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0").

Average snowfall days - Phoenix, AZ

The month with the highest number of snowfall days is September (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

Average daylight / Average sunshine - Phoenix, AZ

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

The month with the most sunshine is June (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.8h).

Average sunshine days - Phoenix, AZ

The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (21.1 days).

Average visibility - Phoenix, AZ

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).