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Compare the Climate and Weather in Phoenix and Tucson

This page lets you compare and contrast the weather and climate in Phoenix and Tucson year round.

You can drill down to a specific season, month, and even day by clicking the graphs or using the navigation panel.

You can compare up to 6 locations. Add more locations using the search box below or by clicking the map.

Phoenix
Arizona, United States
Tucson
Arizona, United States
Map

Average High and Low Temperature

Compare: History
Compare the Average High and Low Temperature in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F110°F110°F8545107657742102421053898NowNowTucsonTucsonPhoenixPhoenix
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
High Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Phoenix 67°F71°F78°F86°F95°F104°F106°F104°F99°F88°F75°F66°F
Tucson 66°F70°F76°F83°F92°F100°F100°F97°F94°F85°F74°F66°F
Low Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Phoenix 46°F49°F54°F61°F70°F79°F85°F84°F77°F65°F53°F46°F
Tucson 42°F45°F49°F55°F63°F72°F77°F75°F70°F60°F49°F43°F

Phoenix

Compare: History
Average Hourly Temperature in PhoenixJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcoolwarmwarmhotswelteringcomfortablecoldcoldcomfortable

Tucson

Compare: History
Average Hourly Temperature in TucsonJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoldcoolcoolwarmhotswelteringcoldcomfortablevery coldvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies

Compare: History
Compare the Chance of Clearer Skies in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%866255NowNowTucsonTucsonPhoenixPhoenix
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).

Cloud Cover Categories in Phoenix

Compare: History
Cloud Cover Categories in PhoenixJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowclearovercastmostly clearmostly cloudy

Cloud Cover Categories in Tucson

Compare: History
Cloud Cover Categories in TucsonJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowclearovercastmostly clearmostly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
Clearer Skies Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Phoenix 66%63%70%75%79%84%70%71%84%80%72%66%
Tucson 65%63%70%76%79%83%62%63%80%80%72%66%

Daily Chance of Precipitation

Compare: History
Compare the Daily Chance of Precipitation in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%191423NowNowPhoenixPhoenix
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Phoenix 3.2d3.1d3.0d1.3d0.6d0.7d4.4d5.6d3.2d2.0d2.3d3.3d
Tucson 3.6d3.4d3.0d1.5d1.1d2.4d10.6d11.7d5.3d2.8d2.5d3.9d

Average Monthly Rainfall

Compare: History
Compare the Average Monthly Rainfall in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in1.10.12.2NowNowTucsonTucsonPhoenixPhoenix
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
Rainfall Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Phoenix 1.0″1.1″0.9″0.3″0.1″0.1″0.6″1.0″0.7″0.5″0.7″1.0″
Tucson 1.0″1.0″0.7″0.3″0.1″0.4″1.9″2.0″1.2″0.7″0.6″1.0″

Hours of Daylight

Compare: History
Compare the Hours of Daylight in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr14.49.9NowNowPhoenixPhoenix
The number of hours during which the Sun is at least partly above the horizon.
Daylight Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Phoenix 10.2h11.0h12.0h13.1h13.9h14.3h14.1h13.3h12.3h11.3h10.4h10.0h
Tucson 10.3h11.1h12.0h13.0h13.8h14.2h14.0h13.3h12.3h11.3h10.5h10.1h

Chance of Muggy Conditions

Compare: History
Compare the Chance of Muggy Conditions in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%24NowNowTucsonTucson
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).

Humidity Comfort Levels in Phoenix

Compare: History
Humidity Comfort Levels in PhoenixJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowmuggymuggyhumidhumiddrydrycomfortablecomfortable

Humidity Comfort Levels in Tucson

Compare: History
Humidity Comfort Levels in TucsonJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowmuggymuggyhumidhumiddrydrycomfortablecomfortable
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
Muggy days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Phoenix 0.0d0.0d0.0d0.0d0.0d0.5d5.0d6.9d3.1d0.3d0.0d0.0d
Tucson 0.0d0.0d0.0d0.0d0.0d0.6d4.5d5.9d2.2d0.1d0.0d0.0d

Average Wind Speed

Compare: History
Compare the Average Wind Speed in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph7.55.78.75.3NowNowTucsonTucsonPhoenixPhoenix
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Phoenix 6.96.76.97.47.47.36.55.86.36.66.86.8
Tucson 8.38.18.38.68.47.86.15.56.67.58.28.3

Wind Direction in Phoenix

Compare: History
Wind Direction in PhoenixJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth

Wind Direction in Tucson

Compare: History
Wind Direction in TucsonJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwesteastsouthnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Tourism Score

Compare: History
Compare the Tourism Score in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.72.67.4NowNowTucsonTucsonPhoenixPhoenix
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score

Compare: History
Compare the Beach/Pool Score in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.10.37.5NowNowTucsonTucsonPhoenixPhoenix
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season

Compare: History
Compare the Growing Season in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowTucsonTucsonPhoenixPhoenix
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days

Compare: History
Compare the Growing Degree Days in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°FNowNowTucsonTucsonPhoenixPhoenix
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy

Compare: History
Compare the Average Daily Incident Shortwave Solar Energy in Phoenix and TucsonJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh8.53.1NowNowTucsonTucsonPhoenixPhoenix
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Phoenix 3.54.45.97.38.18.47.46.76.25.03.83.2
Tucson 3.74.76.17.58.38.36.96.36.15.24.03.4

This report illustrates the typical weather for Phoenix and Tucson year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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