GENERAL33728

• Permit No: M1977210
• IBM Index Class Name: General Documents
• Doc Date: 8/31/1994
• Doc Name: BIOGEOCHEMICAL LIMITATIONS ON WESTERN RECLAMATION
• Media Type: D
• Archive: No

TABLE 1
Normals of monthly precipitation and evapotranspiration in centim eters
for stations in the Powder, Little Missouri and Ton gue River drainages.
Sea sonal
Jan Feb Mar Apr May June July Aug Sep Oct Nuv Dec ANN 0°C -2oC
Station
•
Gillette 2E
P 1.5 1.5 2.8 4.3 5.6 6.6 3.0 2.5 2.8 1.8 Z.0 1.5 35.6 16.3 19.8
PET 0.0 0.0 0.0 3.0 7.1 10.2 14.4 12.7 7.9 4.1 0.3' 0.0 59.7 46.5 52.1
ET (2) 0.0 0.0 0.0 3.0 6.9 8.6 4.8 2.5 2.8 1.8 0.3 0.0 30.7 20.6 24.9
ET (6) 0.0 0.0 0.0 3.0 6.9 8.9 7.4 4.3 3.3 2.0 0.3 0.0 35.6 25.1 29.5
Dull Center 1SE
P 0.5 0.8 1.5 3.8 5.8 5.6 3.8 3.0 2.3 2.0 1.0 0.8 31.0 15.7 18.8
PEI' 0.0 0.0 0.3 3.3 7.4 11.2 15.0 13.0 7.6 3.8 0.3 0.0 61.7 46.2 51.6
Et (2) 0.0 0.0 0.3 3.3 7.1 7.6 4.8 3.3 2.3 2.0 0.3 0.0 31.0 19.3 22.9
ET (6) 0.0 0.0 0.3 3.3 6.3 6.9 5.3 3.8 2.5 2.0 0.3 0.0 31.0 19.6 22.9
•
Douglas
P 1.0 1.3 2.0 4.6 5.8 4.6 3.3 2.8 2.8 2.8 1.5 1.5 34.3 14.5 18.3
PET 0.0 0.0 0.3 3.3 7.1 10.7 13.7 11.9 7.4 3.6 0.3 0.0 58.4 43.4 49.3
ET (2) 0.0 0.0 0.3 3.3 6.9 7.6 4.6 2.8 2.8 2.8 0.3 0.0 31.2 18.8 23.1
ET (6) 0.0 0.0 0.3 3.3 6.6 7.6 6.3 4.1 3.3 2.8 0.3 0.0 34.3 21.8 25.9
P = Precipitation
PET = Potential evapotranspiration
ET (2) = Actual evapotranspiration, 5.1 an (2-inch) available water capacity
ET (6) Actual evapotranspiration, 15.2 an (6-inch) available water capacity
FROM: U.S. Department of Commerce and U.S. Department of Agriculture (undated)