Marble Falls' 3 Day Weather Summary Sponsored by LCRA
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 10, 2025 - Thu 0.22 93 72 42 22.32 0.00 0.43 8.34
Jul 09, 2025 - Wed 0.13 89 74 63 14.78 0.00 0.52 3.84
Jul 08, 2025 - Tue 0.17 93 74 44 17.74 0.00 0.40 0.45
Data Summary 0.53 93 72 49 54.84 0.00 0.45 4.21  
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 10, 2025 - Thu 82 72 77 69 110 0
Jul 09, 2025 - Wed 79 76 82 73 50 0
Jul 08, 2025 - Tue 83 75 81 70 70 0
Data Summary 81 74 82 69 230 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)
Jul 10, 2025 - Thu 29 22 27 32 27 22
Jul 09, 2025 - Wed 30 21 26 31 26 21
Jul 08, 2025 - Tue 30 23 28 33 28 23
Data Summary 89 66 81 96 81 66
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Jul 10, 2025 - Thu 0 0
Jul 09, 2025 - Wed 0 0
Jul 08, 2025 - Tue 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 42 42
Dec 78 78
Jan 233 319
Feb 135 189
Mar 17 17
Total 505 645

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