South Texas Weather

Soil Water Content (in/ft)

Soil Texture Field Capacity Wilting Point Available Water Content
Coarse Sand 1.20 0.90 0.30
Fine Sand 1.50 0.75 0.75
Loamy Sand 2.20 1.35 0.85
Loamy Fine Sand 2.50 1.25 1.25
Sandy Loam 2.70 1.30 1.40
Fine Sandy Loam 3.40 1.70 1.70
Sandy Clay Loam 4.00 2.20 1.80
Loam 4.00 2.00 2.00
Silt 4.10 2.10 2.00
Silt Loam 4.30 1.90 2.40
Silty Clay Loam 4.60 2.20 2.40
Clay Loam 4.80 2.40 2.40
Silty Clay 4.80 2.90 1.90
Clay 4.80 3.00 1.80
Peat Mucks 5.00 2.60 2.40

FC - Field Capacity

PWP - Permanent Wilting Point

RD - Root Depth

MAD - Maximum Allowable Depletion

AD - Allowable Depletion

IW - Initial Water (%)

Available Water (in) = (FC - PWP)*RD

Allowable Depletion (in) = (FC - PWP)*MAD

Initial Water (in) = ((FC - PWP)*IW + PWP)*RD

Irrigate below this level (in) = (FC - AD)*RD


Howdy!

This site is run by the Texas A&M AgriLife Research Center District 12 Office. Our aim is to provide the public with weather data recorded from our weather stations placed around the RGV.

Texas A&M AgriLife
Research | 2415 E Hwy 83 | Weslaco, TX 78596
Phone: (956)968-5585 | Fax: (956)969-5620