Houston's 3 Day Weather Summary Sponsored by Harris Galveston Subsidence 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)
Mar 31, 2025 - Mon 0.13 83 69 51 15.71 0.00 0.10 3.60
Mar 30, 2025 - Sun 0.11 81 71 64 11.88 0.00 2.81 5.06
Mar 29, 2025 - Sat 0.15 85 68 50 16.94 0.04 0.29 3.10
Data Summary 0.38 85 68 55 44.52 0.04 1.07 3.92  
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 76 67 72 62 31 0
Mar 30, 2025 - Sun 75 69 71 68 86 0
Mar 29, 2025 - Sat 74 67 68 65 71 0
Data Summary 75 67 72 62 188 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)
Mar 31, 2025 - Mon 26 16 21 26 21 16
Mar 30, 2025 - Sun 26 16 21 26 21 16
Mar 29, 2025 - Sat 27 17 22 27 22 17
Data Summary 79 49 64 79 64 49
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 0 0
Nov 22 22
Dec 49 49
Jan 220 275
Feb 101 120
Mar 20 20
Total 412 486

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