The combination of abundant tropical moisture, a series of upper level disturbances and seabreeze boundary provided for scattered showers and thunderstorms over Deep South Texas and the Rio Grande Valley during the first two weeks of the month. Isolated strong thunderstorms rumbled through, producing periods of locally heavy rainfall. Heaviest rains occurred over the western counties, mainly over Zapata County. Rainfall amounts of 3.75 inches were reported at Falcon Dam from the 1st through the 14th. Rainfall estimates indicated rainfall amounts of 2 to 4 inches falling over Zapata, western Starr and extreme western Jim Hogg counties. A few areas of Hidalgo, Willacy and Cameron also received beneficial rains, however rainfall amounts were much less, averaging 1 inch or less.
The first half of the month rains stabilized drought conditions, and bought time for degradation which arrived to begin July. At the end of May, Drought conditions had lessened to Moderate D1 over nearly all of Zapata and western Jim Hogg counties. Severe drought extended across western Starr, eastern Jim Hogg and western Brooks counties. Extreme drought covered the rest of the area all the way to the coast, with pockets of exceptional drought indicated over western Hidalgo and coastal Kenedy counties.
Late month hot, rain-free, and dry (humidity) weather east of Zapata County - a result of the return of La Canicula, or the atmospheric high pressure that provides hot and dry conditions typically from mid July to mid August -  set the stage for slightly degraded conditions along the coast and in portions of the ranchlands of Jim Hogg and Brooks County by the start of July.

Drought in COASTAL CAMERON, TEXAS
From 01-JUN-13 00:00:00 to 30-JUN-13 23:59:00 (CST-6)
Property damage: 0.00K
Reported by: Drought Monitor

While some areas of Coastal Cameron County received beneficial rains, totals were generally an inch or less and did little to alleviate drought conditions. Extreme (D3) drought conditions continued through much of June.

Drought in COASTAL WILLACY, TEXAS
From 01-JUN-13 00:00:00 to 30-JUN-13 23:59:00 (CST-6)
Property damage: 0.00K
Reported by: Drought Monitor

While some areas of Coastal Willacy County received beneficial rains, totals were generally an inch or less and did little to alleviate drought conditions. Extreme (D3) drought conditions continued through much of June.

Drought in WILLACY, TEXAS
From 01-JUN-13 00:00:00 to 30-JUN-13 23:59:00 (CST-6)
Property damage: 0.00K
Reported by: Drought Monitor

While some areas of Willacy County received beneficial rains, totals were generally an inch or less and did little to alleviate drought conditions. Extreme (D3) drought conditions continued through much of June.

Drought in KENEDY, TEXAS
From 01-JUN-13 00:00:00 to 30-JUN-13 23:59:00 (CST-6)
Property damage: 0.00K
Reported by: Drought Monitor

Despite areas of Kenedy County receiving between an inch and two inches of rainfall during the first half of the month, the rainfall did little to improve drought conditions across Kenedy County. The majority of the county remained in Exceptional (D4) drought conditions, with areas of Extreme (D3) drought conditions along the eastern and southern county borders.

Drought in HIDALGO, TEXAS
From 01-JUN-13 00:00:00 to 30-JUN-13 23:59:00 (CST-6)
Property damage: 0.00K
Reported by: Drought Monitor

While some areas of Hidalgo County received beneficial rains, totals were generally an inch or less and did little to alleviate drought conditions. Most of Hidalgo County remained in Extreme (D3) drought conditions, except for an area of Exceptional (D4) drought conditions stretching from the southwest corner of the county into the center of the county.

Drought in ZAPATA, TEXAS
From 01-JUN-13 00:00:00 to 25-JUN-13 23:59:00 (CST-6)
Property damage: 0.00K
Reported by: Drought Monitor

Locally heavy rainfall of 2 to 4 inches fell across Zapata County during the first two weeks of June. This very beneficial rain allowed for Moderate (D1) drought conditions to continue across much of the county except for the very far southern tip of the county which  held onto Severe (D2) drought conditions.

Drought in BROOKS, TEXAS
From 01-JUN-13 00:00:00 to 30-JUN-13 23:59:00 (CST-6)
Property damage: 0.00K
Reported by: Drought Monitor

Very isolated showers and thunderstorms across Brooks County during June dropped less than a quarter inch of rain. While any rain that fell was beneficial, it did little to improve drought conditions across Brooks County.  The northwestern half of the county remained affected by Severe (D2) drought conditions, while the southeastern half of Brooks County remained in Extreme (D3) drought conditions.

Drought in JIM HOGG, TEXAS
From 01-JUN-13 00:00:00 to 30-JUN-13 23:59:00 (CST-6)
Property damage: 0.00K
Reported by: Drought Monitor

While most of Jim Hogg County saw little in the way of rainfall during much of June, isolated areas in extreme western Jim Hogg County received from two to four inches of rain during the first two weeks.  This rain allowed for the western half of Jim Hogg County to remain in Moderate (D1) drought conditions, while the eastern half of the county experienced Severe (D2) drought conditions.

Drought in STARR, TEXAS
From 01-JUN-13 00:00:00 to 30-JUN-13 23:59:00 (CST-6)
Property damage: 0.00K
Reported by: Drought Monitor

Areas of beneficial rain fell across Starr County throughout the first half of month. An estimated 2 to 4 inches fell across the western half of the county, with 3.75 inches reported at Falcon Dam.  Throughout the month of June, the county remained split, with Exceptional (D4) drought conditions in the southeastern corner, Extreme (D3) drought conditions in the middle third of the county, Severe (D2) drought conditions in the northern third of the county, with an area of Moderate (D1) drought conditions along the far north and western edges of the county.

Drought in CAMERON, TEXAS
From 01-JUN-13 00:00:00 to 30-JUN-13 23:59:00 (CST-6)
Property damage: 0.00K
Reported by: Drought Monitor

While some areas of Cameron County received beneficial rains, totals were generally an inch or less and did little to alleviate drought conditions. Extreme (D3) drought conditions continued through much of June.