Houston's 5 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)
Aug 30, 2025 - Sat 0.13 92 76 49 13.98 0.03 0.00 0.60
Aug 29, 2025 - Fri 0.15 94 76 43 17.30 0.00 0.00 1.46
Aug 28, 2025 - Thu 0.17 95 74 40 20.97 0.00 0.00 3.41
Aug 27, 2025 - Wed 0.08 86 74 60 8.31 2.72 0.00 0.09
Aug 26, 2025 - Tue 0.14 91 72 50 17.03 0.00 0.00 2.95
Data Summary 0.67 95 72 48 77.59 2.75 0.00 1.70  
Detailed Crop Weather Data
Date Average Temp
(f)
Dew Point
(f)
Max Dewpoint
(f)
Min Dewpoint
(f)
Wind Run
(miles/day)
Soil Temp
(f)
Aug 30, 2025 - Sat 82 73 74 70 27 0
Aug 29, 2025 - Fri 85 73 75 72 13 0
Aug 28, 2025 - Thu 84 73 75 71 16 0
Aug 27, 2025 - Wed 79 73 74 71 8 0
Aug 26, 2025 - Tue 82 71 74 66 24 0
Data Summary 82 72 75 66 88 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)
Aug 30, 2025 - Sat 31 24 29 34 29 24
Aug 29, 2025 - Fri 31 25 30 35 30 25
Aug 28, 2025 - Thu 30 25 30 35 30 25
Aug 27, 2025 - Wed 30 20 25 30 25 20
Aug 26, 2025 - Tue 29 22 27 32 27 22
Data Summary 151 116 141 166 141 116
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Aug 30, 2025 - Sat 0 0
Aug 29, 2025 - Fri 0 0
Aug 28, 2025 - Thu 0 0
Aug 27, 2025 - Wed 0 0
Aug 26, 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 22 22
Dec 49 49
Jan 220 275
Feb 101 120
Mar 19 19
Total 411 485

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