Ozona-Sonora'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)
Jul 12, 2025 - Sat 0.10 81 73 61 7.36 0.05 7.58 5.71
Jul 11, 2025 - Fri 0.23 89 72 45 19.15 0.00 6.48 7.10
Jul 10, 2025 - Thu 0.27 90 69 36 29.38 0.00 3.59 9.53
Data Summary 0.60 90 69 47 55.88 0.05 5.88 7.45  
Detailed Crop Weather Data
Date Average Temp
(f)
Dew Point
(f)
Max Dewpoint
(f)
Min Dewpoint
(f)
Wind Run
(miles/day)
Soil Temp
(f)
Jul 12, 2025 - Sat 76 69 72 64 489 78
Jul 11, 2025 - Fri 79 66 70 59 658 79
Jul 10, 2025 - Thu 79 65 68 60 559 79
Data Summary 78 66 72 59 1,706 78
Heat Units
Date Corn
(heat units)
Cotton
(heat units)
Sorghum
(heat units)
50 Degree
(heat units)
55 Degree
(heat units)
60 Degree
(heat units)
Jul 12, 2025 - Sat 27 17 22 27 22 17
Jul 11, 2025 - Fri 29 20 25 30 25 20
Jul 10, 2025 - Thu 27 19 24 29 24 19
Data Summary 83 56 71 86 71 56
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Jul 12, 2025 - Sat 0 0
Jul 11, 2025 - Fri 0 0
Jul 10, 2025 - Thu 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 0 0
Nov 30 30
Dec 108 108
Jan 301 411
Feb 146 219
Mar 20 20
Total 605 788

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