Monthly weather forecast and climate Phoenix , AZ. The city of Phoenix, Arizona at dusk. January , like December , in Phoenix , Arizona , is another comfortable winter month, with temperature in the range of an average high of In Phoenix, the average high-temperature is essentially the same as in December - a still enjoyable Weather in January ».
The last month of the winter, February , is also an enjoyable month in Phoenix , Arizona , with average temperature fluctuating between In Phoenix, the average high-temperature in February is almost the same as in January - a still comfortable Weather in February ».
The first month of the spring, March , is a moderately hot month in Phoenix , Arizona , with average temperature fluctuating between In Phoenix, Arizona, the average high-temperature in March slightly increases, from a comfortable Weather in March ».
April , the same as March , is another warm spring month in Phoenix , Arizona , with average temperature ranging between max In Phoenix, the average high-temperature in April slightly increases, from a moderately hot Weather in April ».
May , the last month of the spring, in Phoenix , is a tropical month, with average temperature fluctuating between In Phoenix, the average high-temperature slightly increases, from a moderately hot Weather in May ». June , the first month of the summer, in Phoenix , is a very hot month, with average temperature ranging between min In June, the average high-temperature rises, from a hot Weather in June ».
July , the same as June , is another torrid summer month in Phoenix , Arizona , with average temperature varying between July is the warmest month, with an average high-temperature of Weather in July ». August , the last month of the summer, in Phoenix , is another very hot month, with average temperature fluctuating between In Phoenix, the average high-temperature in August is essentially the same as in July - a still very hot 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 low of In September, the average high-temperature slightly decreases, from a torrid Weather in September ». October , the same as September , is a moderately hot autumn month in Phoenix , Arizona , with average temperature fluctuating between Tourists are unlikely to visit Phoenix in November.
Those willing to visit at these times will likely find it the least expensive month. Humidity and temperatures combine to make this season feel warm. Highs range from Rain is extremely rare with 0 to 1 days of significant precipitation per month.
Spring is the second busiest for tourism, which makes it a good time for those looking for things to do. The middle-year months have hot weather with high temperatures that are extremely hot. These months see moderate precipitation with 0 to 3 days of precipitation per month. June — August is the slowest season for tourism in Phoenix, so lodging and other accommodations may cost less than usual. Fall daily highs range from It rains or snows a barely noticeable amount: 0 to 1 days per month.
Tourism is fairly slow during these months due to the weather, so hotels may be lower priced. Weather is somewhat cool this time of year in Phoenix to be enjoyable for warm weather travelers. The average high during this season is between Sidewalks just don't get that hot. Try a solar oven if you need to cook an egg outdoors. Spicy food won't lower your body temperature. In fact, some chilies will increase your metabolic rate. The water or other beverages people drink in an attempt to cool off is likely what makes them feel better.
Remember, water, and lots of it, is essential for warding off dehydration in high temperatures. Rosendahl, The ten-year average daily receipt of solar energy at Phoenix is shown in curve D. The large drop in energy receipt during July is directly traceable to the increase in cloudiness curve E during this period.
The depletion of solar energy due to clouds is also apparent during the winter months, although less spectacularly so. The continued depression of the averaged receipts of solar energy into August is due to the increased water vapor in the atmosphere curve F, from Reitan, Also shown is the ten-year average daily precipitation at Phoenix curve G.
It is seen that the largest average daily receipts occur in July and August. Rainfall plays a significant role in that a portion of the solar energy reaching the ground is used to evaporate moisture. Curve B is the average daily temperature at Phoenix. This is due primarily to the thermal lag of the earth. The flattening of the temperature curve during August is due to the energy absorbed by the enhanced rainfall during that time. Daily total Horizontal Solar Energy Receipts, Reitan, C.
Bulletin American Meteorological Society, 41, Rosendahl, H. The selection of the U. Army Signal Service to take such observations was dictated by the availability of communications facilities which the Signal Service had developed during the Civil War and were continuing to develop for protection against the Indians after the war.
Another Act of Congress, on June 10, , extended these services throughout the entire United States. The Bureau directed its attention mainly toward establishing a network of field stations. Faced with the growth of public interest, civic pride and the need to provide the best coverage for its forecasting and warning services with limited funds, the Weather Bureau could only slowly grant requests to establish weather stations in a rapidly expanding Nation. Tucson followed in September of that year, and it was not until four years later that the small community of Phoenix rated a full station.
Records had been kept in Phoenix by the Signal Service beginning on January 28, , and Signal Service personnel continued to take observations until they transferred the station on the corner of Center and Washington Streets to the Weather Bureau on August 6, In the office was moved to the southwest corner of 1st Avenue and Adams where it remained until it moved into the Federal Building on the southwest corner of 1st Avenue and Van Buren in March On October 21, , it moved to the Federal Building at Central and Fillmore where it stayed until it was closed on october 22, Meanwhile, the development of air transportation and teletype communications in the s and s altered and redirected somewhat the purpose of the Weather Bureau as first defined by the law in In support of this new means of transportation, another Weather Bureau office was established atSky Harbor Airport on May 2, , and observations were taken there also until July when Department of Commerce radio operators took over the program.
The Weather Bureau returned again to this station in January and has managed the station ever since that time. Just as an increase in wind makes the cold air more unbearable, so does an increase in the moisture content of the air make the high summer temperatures more uncomfortable.
In most sections of the country, people look forward to summer. In the desert southwest, however, summer is the most undesirable time of the year. The Heat Index Graph, devised by the National Weather Service, uses temperature and humidity values to determine the heat index. The areas of the graph are labeled: very warm, hot, very hot, and extremely hot.
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