Lewisville's 7 Day Weather Summary Sponsored by Upper Trinity Regional Water 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)
Apr 17, 2025 - Thu 0.23 82 67 42 20.70 0.00 8.28 11.51
Apr 16, 2025 - Wed 0.19 80 51 39 21.40 0.00 0.09 8.56
Apr 15, 2025 - Tue 0.20 72 56 18 25.22 0.00 6.42 4.91
Apr 14, 2025 - Mon 0.24 83 64 36 23.23 0.00 7.83 6.70
Apr 13, 2025 - Sun 0.34 90 65 19 24.81 0.00 7.88 12.60
Apr 12, 2025 - Sat 0.22 81 53 22 24.33 0.00 0.05 8.47
Apr 11, 2025 - Fri 0.17 77 55 16 24.80 0.00 0.16 3.79
Data Summary 1.60 90 51 27 164.49 0.00 4.39 8.08  
Detailed Crop Weather Data
Date Average Temp
(f)
Dew Point
(f)
Max Dewpoint
(f)
Min Dewpoint
(f)
Wind Run
(miles/day)
Soil Temp
(f)
Apr 17, 2025 - Thu 74 59 63 55 224 0
Apr 16, 2025 - Wed 68 50 60 36 122 0
Apr 15, 2025 - Tue 64 40 44 36 101 0
Apr 14, 2025 - Mon 73 55 61 46 170 0
Apr 13, 2025 - Sun 77 55 62 51 240 0
Apr 12, 2025 - Sat 69 46 55 36 119 0
Apr 11, 2025 - Fri 66 47 51 43 51 0
Data Summary 70 50 63 36 1,027 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)
Apr 17, 2025 - Thu 24 14 19 24 19 14
Apr 16, 2025 - Wed 16 6 11 16 11 6
Apr 15, 2025 - Tue 14 4 9 14 9 4
Apr 14, 2025 - Mon 24 14 19 24 19 14
Apr 13, 2025 - Sun 25 18 23 28 23 18
Apr 12, 2025 - Sat 17 7 12 17 12 7
Apr 11, 2025 - Fri 16 6 11 16 11 6
Data Summary 136 69 104 139 104 69
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Apr 17, 2025 - Thu 0 0
Apr 16, 2025 - Wed 0 0
Apr 15, 2025 - Tue 0 0
Apr 14, 2025 - Mon 0 0
Apr 13, 2025 - Sun 0 0
Apr 12, 2025 - Sat 0 0
Apr 11, 2025 - Fri 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 7 7
Nov 69 69
Dec 127 135
Jan 248 419
Feb 175 285
Mar 46 46
Total 672 961

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