Rockwall's 3 Day Weather Summary Sponsored by North Texas Municipal 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 20, 2025 - Fri 0.24 93 78 47 22.41 0.00 4.59 6.88
Jun 19, 2025 - Thu 0.22 93 77 48 21.68 0.00 3.96 4.00
Jun 18, 2025 - Wed 0.21 93 78 47 17.10 0.00 7.60 4.98
Data Summary 0.67 93 77 47 61.19 0.00 5.38 5.29  
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 20, 2025 - Fri 85 72 74 71 122 0
Jun 19, 2025 - Thu 85 72 75 70 99 0
Jun 18, 2025 - Wed 84 71 73 69 125 0
Data Summary 84 71 75 69 346 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 20, 2025 - Fri 32 25 30 35 30 25
Jun 19, 2025 - Thu 31 25 30 35 30 25
Jun 18, 2025 - Wed 32 25 30 35 30 25
Data Summary 95 75 90 105 90 75
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Jun 20, 2025 - Fri 0 0
Jun 19, 2025 - Thu 0 0
Jun 18, 2025 - Wed 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 53 53
Dec 136 145
Jan 241 413
Feb 169 276
Mar 37 37
Total 636 924

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