Ladonia Old's 3 Day Weather Summary Sponsored by Upper Trinity Regional Water District
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)
Jun 19, 2025 - Thu 0.23 90 74 53 26.51 0.00 1.24 3.98
Jun 18, 2025 - Wed 0.21 89 72 54 22.42 0.00 8.46 7.94
Jun 17, 2025 - Tue 0.26 88 75 53 28.88 0.00 3.56 8.10
Data Summary 0.70 90 72 53 77.81 0.00 4.42 6.67  
Detailed Crop Weather Data
Date Average Temp
(f)
Dew Point
(f)
Max Dewpoint
(f)
Min Dewpoint
(f)
Wind Run
(miles/day)
Soil Temp
(f)
Jun 19, 2025 - Thu 82 72 74 71 85 0
Jun 18, 2025 - Wed 81 71 73 64 126 0
Jun 17, 2025 - Tue 82 71 73 68 138 0
Data Summary 81 71 74 64 349 0
Heat Units
Date Corn
(heat units)
Cotton
(heat units)
Sorghum
(heat units)
50 Degree
(heat units)
55 Degree
(heat units)
60 Degree
(heat units)
Jun 19, 2025 - Thu 30 22 27 32 27 22
Jun 18, 2025 - Wed 29 21 26 31 26 21
Jun 17, 2025 - Tue 30 22 27 32 27 22
Data Summary 89 65 80 95 80 65
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Jun 19, 2025 - Thu 0 0
Jun 18, 2025 - Wed 0 0
Jun 17, 2025 - Tue 0 0
Data Summary 0 0
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 9 9
Nov 83 86
Dec 184 200
Jan 229 459
Feb 184 308
Mar 56 56
Total 745 1118

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