Van Horn South's 3 Day Weather Summary Sponsored by Texas Water Development Board
Date ETo
(in)
Max Temp
(f)
Min Temp
(f)
Min RH
(%)
Solar Rad.
(MJ/m2)
Rainfall
(in)
Wind 4am
(mph)
Wind 4pm
(mph)
Battery
(v)
Feb 12, 2025 - Wed 0.22 66 51 10 17.50 0.00 10.41 11.77
Feb 11, 2025 - Tue 0.23 75 41 5 18.56 0.00 7.10 10.94
Feb 10, 2025 - Mon 0.05 56 40 36 5.98 0.00 4.87 0.00
Data Summary 0.50 75 40 17 42.04 0.00 7.46 7.57  
Detailed Crop Weather Data
Date Average Temp
(f)
Dew Point
(f)
Max Dewpoint
(f)
Min Dewpoint
(f)
Wind Run
(miles/day)
Soil Temp
(f)
Feb 12, 2025 - Wed 58 28 35 20 1,016 60
Feb 11, 2025 - Tue 64 35 43 22 971 60
Feb 10, 2025 - Mon 48 29 34 24 186 56
Data Summary 56 30 43 20 2,173 58
Heat Units
Date Corn
(heat units)
Cotton
(heat units)
Sorghum
(heat units)
50 Degree
(heat units)
55 Degree
(heat units)
60 Degree
(heat units)
Feb 12, 2025 - Wed 8 0 3 8 3 0
Feb 11, 2025 - Tue 8 0 3 8 3 0
Feb 10, 2025 - Mon 0 0 0 0 0 0
Data Summary 16 0 6 16 6 0
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Feb 12, 2025 - Wed 0 0
Feb 11, 2025 - Tue 2 2
Feb 10, 2025 - Mon 10 10
Data Summary 12 12
Chilling Hours for the 2024-2025 Season
October 1, 2024 thru March 31, 2025
Month Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Oct 5 5
Nov 137 147
Dec 241 281
Jan 294 519
Feb 70 78
Total 747 1030

Calculators

Landscape
Crop
Landscape Watering Calculator
1.) ETo (pet)
2.) Plant Coefficient
3.) Adjustment Factor
4.) Effective Rainfall
5.)
Precipitation Rate
Total Run Time
Irrigations/Week
Run Time/Irrigation
Crop Watering Calculator
1.) ETo value from weather data
2.) Select a crop coefficient
FAO Coefficients
Or
Texas High Plains Coefficients
3.) Select a crop growth stage
4.) Crop coefficient from growth stage
5.) Enter your system efficiency
6.) Effective Rainfall
7.)
Precipitation Rate
Total Run Time
Irrigations/Week
Run Time/Irrigation