Find out more about our data sources. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 16°C (61°F) is normal.  MEAN             77.5              75.9     1.6                        font-family: Cambria, Calibri; font-size: xx-large; MAXIMUM     90.0              88.3     1.7                        .style2 {  DAYS >= .01        16              17.4    -1.4                        Sunlight in August at Phoenix lasts for 13 hours and 20 minutes a …  DEGREE_DAYS  PRECIPITATION (INCHES) Questions? Monthly: 1981-2010 normals History: 2007-2019 In fact, the complete lack of rainfall in Phoenix exceeded 100 days by the beginning of December and became one of the longer rain-free streaks in the climate history of the city. The Phoenix weather forecast calls for possibly record high temperatures on Aug. 20 and 21. A series of tables gives August data by year for temperature and precipitation. .style46 {font-size: medium} } .style57 {color: #0000FF; font-weight: bold; }  TOTALS           4.96              8.03   -3.07                        } National Oceanic and Atmospheric Administration. .style12 {font-size: 18px; } .style29 {font-family: "Times New Roman", Times, serif; font-weight: bold; font-style: italic; font-size: large; }  DAYS MAX >= 90    192             168.8    23.2                        font-size: xx-large;  WEATHER CONDITIONS. .style54 {font-size: 12pt; }  RECORD Monthly averages Phoenix Longitude: -112.013, Latitude: 33.4311 Average weather Phoenix, AZ - 85034.   US Dept of Commerce font-size: x-large;  PRECIPITATION (INCHES) The year 2017 ended up being the all-time warmest year recorded in the history of central Arizona (Phoenix), as well as the warmest ever recorded for southwest Arizona (Yuma). Please select one of the following: Phoenix NWS Watch, Warning, Advisory Product Criteria. The metropolitan area is the 11th largest by population in the United States, with approximately 4.73 million people as of 2017. NUMBER OF DAYS WITH  August is in the summer in Phoenix and is typically the 2nd warmest month of the year. Phoenix is the seat of Maricopa County and the largest city in the state at 517.9 square miles (1,341 km 2), more than twice the size of … MINIMUM     64.9              63.4     1.5                         DAYS >= .50         3               4.5    -1.5                        August is in the summer in Phoenix and is typically the 2nd warmest month of the year. 53 F Phoenix Sky Harbor International Airport Station | Report. Phoenix Daily Records for August 2017 0.33" on Aug 13 Set Record Wettest. TEMPERATURE (F) In fact, the year will go down as one of the top 2 warmest for the state as a whole after all data are compiled.  HEATING TOTAL     434               687    -253                          Free Long Range Weather Forecast for Phoenix, Arizona. font-size: large; Typically on 18 days this month the sky is mainly clear, with at most 30 percent cloud cover. font-size: large; Please try another search. C° F° The August weather guide for Phoenix, Arizona shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. .style3 { Phoenix Weather for August 2020. } Cloudy skies and cool temps for your Friday in the Valley with a high near 65° 4 hours ago  LOWEST             35   01/28        35       0                        The sun's rays reach the ground in Phoenix during 85 percent of daylight hours on average in August, for a total of 352 hours in the month.  DAYS MIN <= 32      0               0.1    -0.1                        The climate in Phoenix during August can be summarized as warm, humid and a little damp. .style32 {font-family: "Times New Roman", Times, serif; font-size: 18px; } Montly weather forecast in Phoenix on Yandex.Weather. US Dept of Commerce Daytime maximum temperatures average around a hot 40°C (104°F), whilst at night 25°C (78°F) is normal. While extreme heat was certainly a major impact, the total number of 100 and 110 degree days in Phoenix and Yuma were not particularly unusual (ironically, both cities had exactly the same number of 100 & 110 degree days). TOTAL    0.92   08/03 TO 08/03                                   HIGH             122   06/26/1990                                     Calendar overview of Months Weather Forecast. The Old Farmer's Almanac's extended forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to … Our weather forecast can give you a great sense of what to expect of the weather in Phoenix in August.  AVERAGE RH (PERCENT)     32 Multiple locations were found. National Weather Service  GREATEST The Star Phoenix offers information on latest national and international events & more.  ................................................. 49 F Phoenix Sky Harbor International Airport Station | Report. Get the monthly weather forecast for Phoenix, AZ, including daily high/low, historical averages, to help you plan ahead.   SINCE 7/1        194               401    -207                        See long range weather forecasts for the next 60 days for the Desert Southwest Region.  DAYS >= .10         7               8.6    -1.6                        } The other predominant weather story in 2017 was the prolonged periods without rainfall. The situation is deteriorating compared to the previous month since in july there is an average of 1.1in of precipitation over 5 days. Not only from an annual record setting average, but also periodically on a daily basis.  AVG. .style8 {font-size: large} font-size: xx-large; NWS Phoenix2727 E Washington StNWS PAB 1TAPhoenix, AZ 85034(602) 275-0073Comments? Please try another search. Weather forecast in mobile app. 90 °F on Aug 28 Set Record High Low. MAXIMUM     89.1              86.7     2.4                        National Weather Service                            12/26/1911                                     .style35 { } After a relatively quiet Thanksgiving across much of the U.S., the weather pattern is about to turn quite turbulent in the coming days.  RECORD In addition to being a little hotter than normal, Phoenix saw significantly more rain than usual in August 2017.   SINCE 1/1       5068              4651     417                        Answer 1 of 7: I'm planning on booking a trip to the JW Marriot Desert Ridge the end of August staying through early September and am concerned about the rain. Sorry, the location you searched for was not found.  DAYS MAX >= 100   109                       Sorry, the location you searched for was not found.   MINIMUM         0.03   2002                                            DAYS >= 1.00        0               1.3    -1.3                        Please help!!! font-weight: bold; Average Weather in August in Phoenix Arizona, United States.  .............................................................. font-family: 'Courier New';                          01/20/1883                                     Multiple locations were found. We will review the data in question.  RAIN                      8     LIGHT RAIN                23 .style40 {font-size: large; font-weight: bold; color: #804000; } font-size: 14pt; In Phoenix, the summers are sweltering and dry, the winters are cool, and it is mostly clear year round. Welcome to the number one resource for things to do in the Phoenix Metro area.  RECORD } The numbers here describe what the August weather in Phoenix, Arizona was like for every year since 2010.  COOLING TOTAL    5212              4608     604                        The first 3 months of the year began very optimistically, however Monsoon rainfall was very spotty and the last 4 months of the year turned exceptionally dry.  WIND (MPH) font-style: italic; Report Station. .style23 {font-family: "Times New Roman", Times, serif; font-style: italic; font-weight: bold; font-size: x-large; } Use this monthly calendar to view weather averages, such as average temperature 14 days ahead of today, as well as the historical weather patterns over the past year. font-style: italic; NWS } }  AVG. Please select one of the following: 2017 Phoenix & Yuma Climate Year in Review, Phoenix NWS Watch, Warning, Advisory Product Criteria, (Data courtesy of Western Region Climate Center), National Oceanic and Atmospheric Administration. font-style: italic; Morning Weather Forecast - 12/11/20. Forecast - Phoenix.  DEGREE_DAYS .style7 { November 27, 2020, 8:30 PM November 27, 2020, 7:29 PM Tonight, Partly cloudy and light winds. Heat was obviously one of the biggest stories in 2017.  HIGHEST GUST SPEED/DIRECTION    48/060    DATE  09/02   .style42 {font-size: x-large}  HIGHEST           120   06/20       115       5                        Day by day forecast. Here's why and a look at the records set so far in 2019.  DAYS MAX >= 90    196             174.8    21.2                          24 HR.  DAYS MAX <= 32      0               0.0     0.0                                   NWS Phoenix2727 E Washington StNWS PAB 1TAPhoenix, AZ 85034(602) 275-0073Comments? Records for Phoenix began in 1896, first taken in downtown and since moved to Sky Harbor airport in the 1950s. .style38 { All NOAA, .style1 {  HEATING TOTAL     618               935    -317                          .style33 { Please Contact Us.   MINIMUM         2.82   2002                                           Information about regional climates.  DAYS >= .50         1               1.9    -0.9                         GREATEST .style37 {font-size: small} The other predominant weather story in 2017 …  AVG. The weather in august in Phoenix (Arizona) is relatively dry (with 1.2in of rainfall over 5 days).  DAYS >= .01        26              36.6   -10.6                        Whether you're one of the Valley's 4 million residents or 16 million annual visitors, we want to help you fully experience the diverse culture, entertaining activities and astonishing 300 … Read latest breaking news, updates, and headlines. font-family: Cambria, Calibri; Today’s and tonight’s Phoenix, AZ weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com TEMPERATURE (F)  HIGHEST           119   06/20       114       5                        MINIMUM     65.4              63.5     1.9                         AVG. color: #0000FF; Weather in Phoenix in August: air temperature, number of sunny days, precipitation, air pressure and humidity. font-size: large; .style36 { While extreme heat was certainly a major impact, the total number of 100 and 110 degree days in Phoenix and Yuma were not particularly unusual (ironically, both cities had exactly the same number of 100 & 110 degree days). .style4 {  DAYS MAX <= 32      0               0.0     0.0                        font-weight: bold; font-weight: bold; font-size: x-large;  WIND (MPH) color: #FF0000; color: #804000; 113 °F on Aug 26 Tied Record High  WEATHER CONDITIONS. .style60 {color: #333333}.   LOW               16   01/07/1913                                      DAYS MIN <= 0       0               0.0     0.0                        The climate is very hot in this city in august.   LOW               22   01/24/1937                                     See Hour-by-hour Forecast for upcoming weather.  DAYS >= .10        13              18.7    -5.7                        Thank you for reporting this station. Records in Yuma began in 1878. Report Station. Watch Queue Queue                          1956                                            RECORD  TOTALS           2.31              3.56   -1.25                        TOTAL    0.83   02/18 TO 02/18                                 This video is unavailable.  MEAN             77.3              75.1     2.2                        Average Weather in Phoenix Arizona, United States. High & Low Weather Summary for August 2018 Temperature Humidity Pressure; High: 113 °F (Aug 6, 2:51 pm) 94% (Aug 10, 12:51 am) 30.00 "Hg … }  DAYS >= 1.00        0               0.5    -0.5                         DAYS MIN <= 32      0               0.4    -0.4                                                      font-family: Cambria, Calibri; Station Data.  AVERAGE RH (PERCENT)     35 NWS  AVERAGE WIND SPEED              7.1 .style58 {  HIGHEST GUST SPEED/DIRECTION    62/030    DATE  07/16    THUNDERSTORM             14     HEAVY RAIN                 4   24 HR. .style59 {color: #000000} font-weight: bold;   Questions? Last updated Friday at 02:15. } color: #FF0000; The historical averages for Scottsdale for the month of August are mid-upper 80's for the lows, and 105/106 for the average highs.   font-weight: bold; Additional climate information can be found on our climate page. August 2018 Weather in Phoenix — Graph °F. See weather overview.  COOLING TOTAL    5068              4650     418                        All NOAA. .style39 {font-size: large; font-weight: bold; }   MAXIMUM        11.41   1905                                           Watch Queue Queue. Weather warnings issued.   We will review the data in question. ... 2017: 31: 31: 2016: 31: 31: 2015: 31: 31: 2014: 31: 31: 2013: 31: 30: 2012: 31: 31: 2011: 31: 31: 2010: 31: 30: Rain. font-style: italic;  LOWEST             34   12/22        36      -2                        Phoenix, AZ Weather Calendar star_ratehome.   National Oceanic and Atmospheric Administration Melting weather records in August, Phoenix sees hottest summer on record ... Tuesday, June 20, 2017 in Phoenix. National Oceanic and Atmospheric Administration If you’re planning to visit Phoenix in the near future, we highly recommend that you review the weather forecast specifically for Phoenix before you arrive.   SINCE 7/1        139               304    -165                        Yuma Daily Records for August 2017 89 °F on Aug 2 Tied Record High Low. The highest day temperature in August 2020 was 117°F.The lowest night temperature was 86°F.The average values for day and night temperatures during August were 111.1°F и 95.2°F respectivly. ☂ Online precipitation map and other weather maps. Temperatures are up to 106°F. Thank you for reporting this station. In fact, Phoenix experienced its 4th hottest temperature ever recorded on Jun 20th. Phoenix, AZ Weather Calendar star_ratehome. font-size: 10.0pt; Phoenix - Weather warnings issued 14-day forecast. } Weather reports from August 2017 in Phoenix, Arizona, USA with highs and lows No telling what the temps will be when you are there, but if you are planning on hiking, I'd make sure that the hikes were very early morning ones. .style41 {font-size: large; font-weight: bold; color: #008000; } Please Contact Us. Phoenix weather averages (imperial / metric) .style55 { Thank you!   MAXIMUM        19.73   1905                                             SINCE 1/1       5212              4607     605                        font-style: italic;  FOG W/VIS <= 1/4 MILE     0.  AVERAGE WIND SPEED              6.4   HIGH             124   07/28/1995                                     2017 2018 2019 2020. Is it true that time of the year experiences heavy rainfall? 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