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Average Monthly ETo (PET)
(inches/month) |
| City |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Total |
| Abilene |
2.08 |
2.57 |
4.14 |
5.48 |
6.47 |
7.65 |
8.36 |
7.46 |
5.48 |
4.21 |
2.67 |
2.08 |
58.65 |
| Amarillo |
1.84 |
2.27 |
3.73 |
5.06 |
5.89 |
7.51 |
8.08 |
7.29 |
5.61 |
4.05 |
2.4 |
1.78 |
58.65 |
| Austin |
2.27 |
2.72 |
4.34 |
5.27 |
6.39 |
7.15 |
7.22 |
7.25 |
5.57 |
4.38 |
2.74 |
2.21 |
57.51 |
| Brownsville |
2.65 |
3.03 |
4.48 |
5.17 |
6.03 |
6.32 |
6.68 |
6.65 |
5.21 |
4.34 |
3.01 |
2.59 |
56.16 |
| College Station |
2.2 |
2.71 |
4.22 |
5.2 |
6.25 |
6.89 |
7.1 |
6.85 |
5.6 |
4.3 |
2.8 |
2.2 |
56.32 |
| Corpus Christi |
2.42 |
2.95 |
4.28 |
5.17 |
5.95 |
6.43 |
6.68 |
6.65 |
5.21 |
4.34 |
3.01 |
2.59 |
55.68 |
| Dallas/Ft. Worth |
2.0 |
2.46 |
3.96 |
5.14 |
6.21 |
7.06 |
7.40 |
7.25 |
5.49 |
4.19 |
2.59 |
2.10 |
55.85 |
| Del
Rio |
2.47 |
3.01 |
4.76 |
6.01 |
6.98 |
7.41 |
7.57 |
7.41 |
5.77 |
4.35 |
2.91 |
2.36 |
61.01 |
| El
Paso |
2.74 |
3.53 |
6.07 |
8.19 |
9.83 |
11.12 |
9.19 |
8.94 |
7.69 |
5.89 |
3.58 |
2.49 |
79.26 |
| Galveston |
2.2 |
2.6 |
4.1 |
5.0 |
6.11 |
6.6 |
6.2 |
6.0 |
5.5 |
4.2 |
2.8 |
2.3 |
53.61 |
| Houston |
2.36 |
2.83 |
4.32 |
5.01 |
6.11 |
6.57 |
6.52 |
6.08 |
5.57 |
4.28 |
2.9 |
2.35 |
54.9 |
| Lubbock |
2.35 |
2.63 |
4.41 |
5.53 |
6.93 |
7.73 |
7.63 |
7.2 |
5.54 |
4.19 |
2.61 |
2.33 |
59.08 |
| Midland |
2.2 |
2.78 |
4.46 |
5.91 |
7.21 |
8.2 |
9.23 |
8.62 |
6.95 |
4.31 |
2.78 |
2.16 |
64.81 |
| Port Arthur |
2.25 |
2.63 |
3.95 |
5.09 |
6.12 |
6.6 |
5.81 |
5.61 |
5.46 |
4.18 |
2.76 |
2.23 |
52.69 |
| San
Angelo |
2.88 |
3.13 |
5.31 |
7.01 |
8.48 |
9.16 |
9.29 |
8.49 |
6.60 |
5.08 |
3.37 |
2.54 |
71.34 |
| San
Antonio |
2.42 |
2.9 |
4.42 |
5.47 |
6.47 |
6.97 |
7.31 |
6.99 |
5.64 |
4.44 |
2.85 |
2.36 |
59.93 |
| Uvalde |
2.44 |
2.95 |
4.62 |
5.85 |
6.7 |
7.21 |
7.5 |
7.31 |
5.7 |
4.4 |
2.89 |
2.36 |
59.93 |
| Victoria |
2.35 |
2.87 |
4.29 |
5.77 |
6.39 |
6.7 |
6.92 |
6.7 |
5.36 |
4.41 |
2.93 |
2.33 |
57.02 |
| Waco |
2.13 |
2.62 |
4.03 |
5.31 |
6.45 |
7.15 |
7.40 |
7.5 |
5.7 |
4..41 |
2.7 |
2.17 |
54.05 |
| Weslaco |
2.5 |
2.57 |
3.96 |
4.9 |
6.12 |
6.53 |
7.0 |
6.58 |
4.79 |
3.96 |
2.85 |
2.29 |
54.05 |
| Wichita Falls |
1.94 |
2.46 |
4.07 |
5.50 |
6.7 |
7.54 |
7.97 |
7.72 |
5.79 |
4.3 |
2.62 |
1.95 |
58.56 |
| Averages were computed using climatic data over the entire period of record available from the National Weather Service and compared to ETo rates based on the standardized Penman-Monteith equation where available. (August 2005) |
| City |
Years of Data |
| Abilene |
52 |
| Amarillo |
52 |
| Austin |
70 |
| Brownsville |
79 |
| College Station |
47 |
| Corpus Christi |
52 |
| Dallas/Ft. Worth |
26 |
| Del Rio |
44 |
| El Paso |
52 |
| Galveston |
59 |
| Houston |
31 |
| Lubbock |
89 |
| Midland |
52 |
| Port Arthur |
53 |
| San Angelo |
54 |
| San Antonio |
54 |
| Victoria |
39 |
| Waco |
68 |
| Wichita Falls |
99 |
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