Upper Santa Cruz River and Altar Valleys storm history

High temperatures in Southeastern Arizona were 4 degrees below normal, causing Low HeatRisk. A Nogales CWOP site reached a high temperature of 87 degrees Fahrenheit. The Pima County Medical Examiner found that heat was the contributing factor in the cause of death for an individu…

High temperatures in Southeastern Arizona were 4 degrees above normal, causing Minor HeatRisk. The Tucson International Airport reached a high temperature of 99 degrees Fahrenheit. The Pima County Medical Examiner found that heat was a factor in the cause of death for an individu…

Temperatures in Southeastern Arizona was 10 degrees above normal with Major HeatRisk. The high temperature at Nogales International Airport was 95 degrees Fahrenheit. The Pima County Medical Examiner found that the cause of death for an individual in Nogales was heat contributed.

High temperatures in Southeastern Arizona were 1 degree below normal, causing Low HeatRisk. Nogales International Airport reached a high temperature of 91 degrees. The Pima County Medical Examiner found that the cause of death for an individual in Nogales, AZ had heat as a contri…

Cold morning temperatures near normal across Southeastern Arizona. A weather station in Rio Rico reached a low temperature of 26 degrees Fahrenheit. The Pima County Medical Examiner confirmed that hypothermia was the primary factor in the cause of death for an individual in Rio R…

Cold morning temperatures were near normal across Southeastern Arizona. Nogales International Airport reached a low temperature of 35 degrees Fahrenheit. The Pima County Medical Examiner confirmed that environmental cold exposure was the primary factor in the cause of death for a…

Hot temperatures about 12 degrees above normal were experienced in Nogales on September 30, causing the Moderate Heat Risk category to be reached. Nogales International Airport topped out at 99 degrees on September 30. The Pima County Medical Examiner confirmed that heat was the …

Hot temperatures about 3 to 5 degrees above normal were experienced in Nogales on September 7, causing the Moderate Heat Risk category to be reached. The Nogales International Airport topped out at 93 degrees on September 7. The Pima County Medical Examiner confirmed that heat wa…

Hot temperatures about 4 to 7 degrees above normal were experienced in the Arivaca and Sasabe areas, causing the moderate Heat Risk category to be reached. The Pima County Medical Examiner determined that heat was the primary cause of death for one individual found in the desert …

Hot temperatures 4 to 9 degrees degrees above normal were experienced across Santa Cruz County resulting in moderate Heat Risk. The Pima County Medical Examiner determined that heat was the primary cause of death of one individual found in the desert near Nogales on July 25.

Hot temperatures 7 to 12 degrees above normal were experienced in the Upper Santa Cruz River and Altar Valleys July 8 through July 11 causing the Major Heat Risk category to be reached. The Pima County Medical Examiner confirmed that heat was the primary factor in the death of on…

Hot temperatures 7 to 15 degrees above normal caused the Moderate Heat Risk category to be reached in Santa Cruz County where temperatures below 5000 feet topped out in the 90s. The Pima County Medical Examiner determined heat to be the primary cause of death for two individuals …

Hot temperatures around 8 degrees above normal caused the Moderate Heat Risk category to be reached in northern Santa Cruz County where temperatures topped out in the upper 90s. The Pima County Medical Examiner determined that heat was a contributing factor in the death an elderl…

Very hot temperatures of 7 to 14 degrees above normal caused the Major Heat Risk category to be reached across southeast Pima County, south central Pinal County and the lower elevations of Santa Cruz County August 27-29. Record highs included 111 degrees at Picacho Peak; 108 at S…

Very hot temperatures of 8 to 13 degrees above normal caused the Major Heat Risk category to be reached across the Tohono O'odham Nation, southeast Pima County, and the lower elevations of Santa Cruz County August 4-6. Record highs at Sells included 109 degrees on August 4 and 5;…

Very hot temperatures of 8 to 13 degrees above normal caused the Major Heat Risk category to be reached in the Altar Valley and Santa Cruz County July 15-30. Record highs at Sasabe included 111 degrees on July 19-21; 109 on July 16-18 and 26-28. Record highs at the Nogales Airpor…

Hot temperatures 3 to 5 degrees above normal and near 100 degrees caused the Moderate Heat Risk category to be reached in the Altar Valley of Pima County and in Santa Cruz County on July 12. The Pima County Medical Examiner determined heat to be the primary cause of death for one…

Very hot temperatures of 7 to 10 degrees above normal caused the Major Heat Risk category to be reached the first eight days of July. Record highs of 106 degrees on July 6 and 105 on July 3 and 7 occurred at the Nogales Airport and 106 degrees on July 3 at Sasabe. The hottest tem…

Very hot temperatures 6 to 11 degrees above normal were experienced in the lower elevations of Cochise, Graham, Greenlee, Santa Cruz and southeast Pinal counties June 26-27, causing the Major Heat Risk category to be reached. Some of the hottest temperatures during the period wer…

Cold low temperatures in the high single digits to teens, or 15 to 25 degrees below normal, occurred in Patagonia with the lowest temperature of 9 degrees recorded the morning of January 24. The Pima County Medical Examiner determined that hypothermia was the primary cause of dea…

Hot high temperatures in the lower 90s, or 2 to 5 degrees above normal, occurred on August 30. This was just below the Moderate Heat Risk category. The Pima County Medical Examiner confirmed that heat was the primary cause of death for one individual found in the desert northeast…

Hot high temperatures in the lower 90s, or 2 to 5 degrees above normal, occurred on August 29. This was just below the Moderate Heat Risk category. The Pima County Medical Examiner confirmed that heat was the primary cause of death for one individual found in the desert northeast…

Hot high temperatures around 100 degrees, or 5 degrees above normal, occurred on July 11, causing the Moderate Heat Risk category to be reached. The Pima County Medical Examiner confirmed that heat was the primary cause of death for one individual found in the desert north of Nog…

Very hot high temperatures of 102 to 109 degrees occurred and caused the High Heat Risk category to be reached. Nogales airport set a record with 105 degrees on the 10th and Sasabe reached 109 degrees on the 11th and 12th. The Pima County Medical Examiner confirmed that heat was …

Hot temperatures 15 degrees above normal, in the mid to upper 90s, were experienced in Pima County on April 18 causing the Moderate Heat Risk category to be reached. The Pima County Medical Examiner confirmed that heat was the primary cause of death for one individual found in th…

Hot temperatures 4 to 6 degrees above normal, in the upper 90s, were experienced in the lower elevations of Santa Cruz County causing the Moderate Heat Risk category to be reached on September 12. The Pima County Medical Examiner confirmed that heat was the primary cause of death…

Very hot high temperatures of 106 to 119 degrees, or 8 to 13 degrees above normal, occurred in the lower elevations of southeast Arizona June 12-20, and caused the High Heat Risk category to be reached. New record daily high temperature records were established at numerous sites …

Hot temperatures, 5 to 10 degrees above normal, were experienced on June 6-7 with high temperatures in the upper 90s to 100 degrees, causing the Moderate Heat Risk category to be reached. The Pima County Medical Examiner confirmed that heat was the primary cause of death for thre…

Hot temperatures 12 to 14 degrees above normal occurred in southeast Pima County and Santa Cruz County, causing the High Heat Risk category to be reached September 4. Record high temperatures were set at Sasabe (105) and Nogales Airport (104). The Pima County Medical Examiner con…

Hot and above normal temperatures around 100 degrees occurred in parts of Santa Cruz County causing the Moderate Heat Risk category to be reached on August 17. The Pima County Medical Examiner confirmed that heat was the primary cause of death for one adult male near Patagonia.

Very hot temperatures 10 to 15 degrees above normal occurred in parts of southeast Arizona, causing the High Heat Risk category to be reached August 13 through August 16. Record high temperatures were tied or set at most locations on multiple days during the period. The hottest r…

Above normal temperatures around 105 degrees occurred in southeast Pima County causing the Moderate Heat Risk category to be reached on August 10th. The Pima County Medical Examiner confirmed that heat was the primary cause of death for one adult male just east of the Baboquivari…

Above normal temperatures occurred in Pima County on July 21st. High temperatures included 103 degrees at the Tucson International Airport, 102 at Sells and 101 at Sasabe. The Pima County Medical Examiner confirmed that heat was the primary cause of death for an adult male 4 mile…

Very hot temperatures 6 to 18 degrees above normal occurred in the lower elevations of southeast Arizona, causing the High Heat Risk category to be reached July 10 through July 13. A number of daily high temperature records were tied or broken. Safford Airport recorded its highes…

Above normal temperatures occurred in Santa Cruz and eastern Pima counties on July 8th. High temperatures included 108 degrees at the Tucson International Airport, 106 at Sells and 103 at Nogales. The Pima County Medical Examiner confirmed that heat was the primary cause of death…

Above normal temperatures occurred in southeast Arizona on August 27th. High temperatures included 105 degrees at the Tucson International Airport, 107 degrees at Sells and 104 degrees (record high) at Sasabe. The Pima County Medical Examiner confirmed that heat was the primary c…

Very hot temperatures occurred on August 20th and 21st, with respective high temperatures of 111 and 113 degrees at Ajo, 109 and 111 degrees (both records) at Picacho, 111 degrees on both days at Sells, 113 degrees on both days (both were records) at Organ Pipe National Monument,…

Above normal temperatures occurred in southern Pima County on September 10th and 11th. Sells recorded high temperatures of 102 degrees on the 10th and 104 on the 11th, while Sasabe reached 101 degrees on both days. The Pima County Medical Examiner confirmed that heat was the prim…

Well above normal temperatures occurred in southeast Arizona on June 22nd and 23rd. Temperatures as hot as 108 degrees occurred at Ajo, Picacho and Safford Airport with 107 at Sasabe (record) and Sells and 106 at Tucson International Airport and Green Valley. The Pima County Medi…

Well above normal temperatures occurred in southeast Arizona on June 13th. Several new record high temperatures were established including 110 degrees at Picacho, 109 at Safford Airport, 107 at Duncan and 105 at Sasabe. Other high temperatures included 107 at Sells. The Pima Coun…

For the month of November, Pima county ranked the 25th driest and Santa Cruz county ranked the 20th driest for the period of record. Soil moisture readings increased to range between the 30th through 80th percentile for the month of November.

For the month of October, Pima county ranked the 13th driest for the period of record and Santa Cruz county ranked the 11th driest for the period of record. Soil moisture readings increased to range between the 30th through 70th percentile for the month of October.

For the month of September, Pima county ranked the 4th driest and Santa Cruz county ranked the 3rd driest for the period of record. Soil moisture readings increased to range between the 10th through 30th percentile for the month of September. For the month of September, Santa Cru…

For the month of August, Pima county ranked the 21st driest and Santa Cruz county ranked the 5th driest for the period of record. Soil moisture readings decreased to range between the 5th through 10th percentile for the month of August.

Extreme Drought (D3) continued in the Upper Santa Cruz and Altar Valleys in the month of July. For the month of July, Pima county ranked the 19th driest and Santa Cruz county ranked the 13th driest for the period of record. Soil moisture readings increased to range between the 30…

The Ranch Wildfire began on June 4th, near Lochiel, AZ, and was active until June 26th. The Ranch Wildfire was determined to be human caused, reached a total of 2751 acres, and no structures were damaged.

Extreme Drought (D3) continued in the upper Santa Cruz River and Altar Valleys in the month of June. For the month of June, Pima county ranked the 20th wettest and Santa Cruz county ranked the 23rd wettest for the period of record. Soil moisture readings increased to between the …

The extreme (D3) drought category continued in Santa Cruz County during May. The drought area remained the same. For the month of May, Santa Cruz county ranked the 1st driest for the period of record. Soil moisture readings continued below the 1st percentile for the month of Apri…

The extreme (D3) drought category continued in Santa Cruz County during April. The drought area remained the same. For the month of April, Santa Cruz county ranked the 47th driest for the period of record. Soil moisture readings continued below the 1st percentile for the month of…

Mesonet CW4232 Patagonia measured a maximum non thunderstorm wind gust of 58 mph.