Marfa's 3 Day Weather Summary Sponsored by Texas Water Development Board
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 18, 2024 - Sat 0.37 94 51 4 33.70 0.00 4.29 10.96
May 17, 2024 - Fri 0.33 88 48 5 33.07 0.00 2.96 6.26
May 16, 2024 - Thu 0.42 86 60 1 33.70 0.00 4.39 12.37
Data Summary 1.12 94 48 3 100.47 0.00 3.88 9.86  
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 18, 2024 - Sat 76 45 61 25 508 81
May 17, 2024 - Fri 71 45 55 33 522 80
May 16, 2024 - Thu 74 43 53 30 775 81
Data Summary 73 44 61 25 1,805 80
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 18, 2024 - Sat 18 12 17 22 17 12
May 17, 2024 - Fri 17 8 13 18 13 8
May 16, 2024 - Thu 23 13 18 23 18 13
Data Summary 58 33 48 63 48 33
Chilling Hours
Date Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
May 18, 2024 - Sat 0 0
May 17, 2024 - Fri 0 0
May 16, 2024 - Thu 0 0
Data Summary 0 0
Chilling Hours for the 2023-2024 Season
October 1, 2023 thru March 31, 2024
Month Method 1
(Hours >= 32 & <= 45 F)
Method 2
(Hours <= 45 F)
Oct 0 0
Nov 0 0
Dec 0 0
Jan 0 0
Feb 0 0
Mar 0 0
Total 0 0

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