Rockwall's 7 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)
Sep 20, 2025 - Sat 0.15 91 73 37 14.50 0.00 1.21 3.91
Sep 19, 2025 - Fri 0.15 90 73 42 15.88 0.00 0.00 3.47
Sep 18, 2025 - Thu 0.14 95 71 32 16.49 0.00 0.00 1.78
Sep 17, 2025 - Wed 0.13 95 74 28 17.13 0.00 0.00 1.81
Sep 16, 2025 - Tue 0.13 94 71 34 17.17 0.00 0.00 1.94
Sep 15, 2025 - Mon 0.13 92 72 37 16.01 0.00 0.19 1.58
Sep 14, 2025 - Sun 0.15 91 72 41 15.56 0.00 2.21 5.47
Data Summary 0.99 95 71 35 112.74 0.00 0.52 2.85  
Detailed Crop Weather Data
Date Average Temp
(f)
Dew Point
(f)
Max Dewpoint
(f)
Min Dewpoint
(f)
Wind Run
(miles/day)
Soil Temp
(f)
Sep 20, 2025 - Sat 81 67 70 64 63 0
Sep 19, 2025 - Fri 81 67 69 64 55 0
Sep 18, 2025 - Thu 83 66 70 62 30 0
Sep 17, 2025 - Wed 83 66 70 62 15 0
Sep 16, 2025 - Tue 82 65 70 61 17 0
Sep 15, 2025 - Mon 82 66 70 62 19 0
Sep 14, 2025 - Sun 82 65 70 62 46 0
Data Summary 82 66 70 61 245 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)
Sep 20, 2025 - Sat 29 22 27 32 27 22
Sep 19, 2025 - Fri 29 22 27 32 27 22
Sep 18, 2025 - Thu 28 23 28 33 28 23
Sep 17, 2025 - Wed 30 25 30 35 30 25
Sep 16, 2025 - Tue 28 22 27 32 27 22
Sep 15, 2025 - Mon 29 22 27 32 27 22
Sep 14, 2025 - Sun 29 21 26 31 26 21
Data Summary 202 157 192 227 192 157
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Sep 20, 2025 - Sat 0 0
Sep 19, 2025 - Fri 0 0
Sep 18, 2025 - Thu 0 0
Sep 17, 2025 - Wed 0 0
Sep 16, 2025 - Tue 0 0
Sep 15, 2025 - Mon 0 0
Sep 14, 2025 - Sun 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