Marfa's 13 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
May 15, 2024 - Wed 0.40 91 69 3 33.29 0.00 8.01 9.71
May 14, 2024 - Tue 0.36 92 51 3 32.37 0.00 5.73 7.70
May 13, 2024 - Mon 0.25 88 48 2 33.73 0.00 0.00 7.95
May 12, 2024 - Sun 0.24 88 57 2 28.97 0.00 1.69 0.00
May 11, 2024 - Sat 0.26 83 63 32 21.38 0.00 6.68 7.79
May 10, 2024 - Fri 0.35 81 60 9 29.32 0.00 7.57 15.58
May 09, 2024 - Thu 0.37 93 52 2 33.45 0.00 4.99 8.34
May 08, 2024 - Wed 0.35 90 54 3 33.50 0.00 2.59 10.35
May 07, 2024 - Tue 0.35 89 51 4 33.18 0.00 3.24 4.63
May 06, 2024 - Mon 0.34 91 58 2 33.07 0.00 2.96 9.21
Data Summary 4.38 94 48 5 412.74 0.00 4.24 8.53  
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
May 15, 2024 - Wed 80 50 58 41 611 82
May 14, 2024 - Tue 74 44 59 25 576 79
May 13, 2024 - Mon 70 39 54 19 235 78
May 12, 2024 - Sun 73 51 58 31 286 79
May 11, 2024 - Sat 72 56 59 52 617 79
May 10, 2024 - Fri 70 52 59 31 887 79
May 09, 2024 - Thu 75 43 59 22 557 80
May 08, 2024 - Wed 75 43 57 26 543 79
May 07, 2024 - Tue 73 41 56 23 522 79
May 06, 2024 - Mon 76 54 60 35 515 81
Data Summary 73 46 61 19 7,155 79
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
May 15, 2024 - Wed 27 20 25 30 25 20
May 14, 2024 - Tue 18 11 16 21 16 11
May 13, 2024 - Mon 17 8 13 18 13 8
May 12, 2024 - Sun 21 12 17 22 17 12
May 11, 2024 - Sat 23 13 18 23 18 13
May 10, 2024 - Fri 20 10 15 20 15 10
May 09, 2024 - Thu 19 12 17 22 17 12
May 08, 2024 - Wed 20 12 17 22 17 12
May 07, 2024 - Tue 18 10 15 20 15 10
May 06, 2024 - Mon 22 15 20 25 20 15
Data Summary 263 156 221 286 221 156
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
May 15, 2024 - Wed 0 0
May 14, 2024 - Tue 0 0
May 13, 2024 - Mon 0 0
May 12, 2024 - Sun 0 0
May 11, 2024 - Sat 0 0
May 10, 2024 - Fri 0 0
May 09, 2024 - Thu 0 0
May 08, 2024 - Wed 0 0
May 07, 2024 - Tue 0 0
May 06, 2024 - Mon 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