Round Rock's 5 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 04, 2025 - Fri 0.06 81 74 72 5.32 0.69 0.00 0.00
Jul 03, 2025 - Thu 0.07 84 74 77 7.00 2.06 0.00 0.00
Jul 02, 2025 - Wed 0.18 97 74 34 19.43 0.28 0.00 12.16
Jul 01, 2025 - Tue 0.17 96 70 35 21.99 0.00 0.00 0.01
Jun 30, 2025 - Mon 0.25 94 74 38 26.11 0.00 0.00 8.14
Data Summary 0.72 97 70 51 79.85 3.03 0.00 4.06  
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 04, 2025 - Fri 77 74 76 70 53 79
Jul 03, 2025 - Thu 77 73 79 71 13 80
Jul 02, 2025 - Wed 81 72 75 67 122 80
Jul 01, 2025 - Tue 82 69 73 66 18 80
Jun 30, 2025 - Mon 81 69 73 67 378 81
Data Summary 79 71 79 66 585 80
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 04, 2025 - Fri 27 17 22 27 22 17
Jul 03, 2025 - Thu 29 19 24 29 24 19
Jul 02, 2025 - Wed 30 25 30 35 30 25
Jul 01, 2025 - Tue 28 23 28 33 28 23
Jun 30, 2025 - Mon 30 24 29 34 29 24
Data Summary 144 108 133 158 133 108
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Jul 04, 2025 - Fri 0 0
Jul 03, 2025 - Thu 0 0
Jul 02, 2025 - Wed 0 0
Jul 01, 2025 - Tue 0 0
Jun 30, 2025 - Mon 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 4 4
Nov 51 51
Dec 96 96
Jan 218 339
Feb 154 221
Mar 38 38
Total 561 749

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