Spicewood's 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)
May 13, 2025 - Tue 0.16 100 66 17 20.40 0.00 0.40 0.40
May 12, 2025 - Mon 0.15 90 51 13 22.52 0.00 0.40 0.40
May 11, 2025 - Sun 0.15 81 58 16 22.86 0.00 0.40 0.40
Data Summary 0.46 100 51 15 65.78 0.00 0.40 0.40  
Detailed Crop Weather Data
Date Average Temp
(f)
Dew Point
(f)
Max Dewpoint
(f)
Min Dewpoint
(f)
Wind Run
(miles/day)
Soil Temp
(f)
May 13, 2025 - Tue 84 62 71 51 10 0
May 12, 2025 - Mon 72 52 59 41 10 0
May 11, 2025 - Sun 71 50 53 45 10 0
Data Summary 75 54 71 41 29 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)
May 13, 2025 - Tue 26 23 28 33 28 23
May 12, 2025 - Mon 18 10 15 20 15 10
May 11, 2025 - Sun 19 9 14 19 14 9
Data Summary 63 42 57 72 57 42
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
May 13, 2025 - Tue 0 0
May 12, 2025 - Mon 0 0
May 11, 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 68 68
Dec 101 111
Jan 226 332
Feb 138 201
Mar 34 34
Total 567 746

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