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)
Jul 04, 2025 - Fri 0.18 90 75 46 16.11 0.03 2.38 5.94
Jul 03, 2025 - Thu 0.14 87 76 41 12.00 0.02 0.00 5.85
Jul 02, 2025 - Wed 0.13 91 76 42 14.23 0.09 0.00 3.03
Jul 01, 2025 - Tue 0.20 89 73 51 21.16 0.00 2.79 3.63
Jun 30, 2025 - Mon 0.28 95 75 38 25.98 0.00 5.21 5.52
Jun 29, 2025 - Sun 0.28 93 79 37 26.32 0.00 5.44 5.63
Jun 28, 2025 - Sat 0.28 94 78 35 25.42 0.00 6.12 5.18
Data Summary 1.49 95 73 41 141.23 0.14 3.13 4.97  
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 04, 2025 - Fri 79 70 73 66 94 0
Jul 03, 2025 - Thu 80 68 73 64 72 0
Jul 02, 2025 - Wed 81 69 72 66 22 0
Jul 01, 2025 - Tue 81 68 72 65 70 0
Jun 30, 2025 - Mon 85 69 73 64 150 0
Jun 29, 2025 - Sun 87 69 71 68 133 0
Jun 28, 2025 - Sat 86 70 72 67 128 0
Data Summary 82 69 73 64 669 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 04, 2025 - Fri 30 23 28 33 28 23
Jul 03, 2025 - Thu 31 21 26 31 26 21
Jul 02, 2025 - Wed 31 23 28 33 28 23
Jul 01, 2025 - Tue 29 21 26 31 26 21
Jun 30, 2025 - Mon 30 25 30 35 30 25
Jun 29, 2025 - Sun 32 26 31 36 31 26
Jun 28, 2025 - Sat 32 26 31 36 31 26
Data Summary 215 165 200 235 200 165
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Jul 04, 2025 - Fri 0 0
Jul 03, 2025 - Thu 0 0
Jul 02, 2025 - Wed 0 0
Jul 01, 2025 - Tue 0 0
Jun 30, 2025 - Mon 0 0
Jun 29, 2025 - Sun 0 0
Jun 28, 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 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