Round Rock'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)
Mar 31, 2025 - Mon 0.16 75 61 45 20.20 0.00 4.09 7.56
Mar 30, 2025 - Sun 0.10 79 66 67 11.19 0.00 7.69 0.00
Mar 29, 2025 - Sat 0.18 84 65 46 19.13 0.00 5.41 11.55
Data Summary 0.44 84 61 52 50.52 0.00 5.73 6.37  
Detailed Crop Weather Data
Date Average Temp
(f)
Dew Point
(f)
Max Dewpoint
(f)
Min Dewpoint
(f)
Wind Run
(miles/day)
Soil Temp
(f)
Mar 31, 2025 - Mon 67 54 68 48 335 66
Mar 30, 2025 - Sun 72 65 68 63 236 66
Mar 29, 2025 - Sat 73 64 67 60 614 65
Data Summary 70 61 68 48 1,184 65
Heat Units
Date Corn
(heat units)
Cotton
(heat units)
Sorghum
(heat units)
50 Degree
(heat units)
55 Degree
(heat units)
60 Degree
(heat units)
Mar 31, 2025 - Mon 18 8 13 18 13 8
Mar 30, 2025 - Sun 22 12 17 22 17 12
Mar 29, 2025 - Sat 24 14 19 24 19 14
Data Summary 64 34 49 64 49 34
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Mar 31, 2025 - Mon 0 0
Mar 30, 2025 - Sun 0 0
Mar 29, 2025 - Sat 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