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VA State Climatology Office, Charlottesville, VA
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Virginia Potential Evapotranspiration, Annual Precipitation, and Annual Precipitation Minus Potential Evapotranspiration

Potential evapotranspiration (PET) data is a theoretical calculation based on Thornthwaite's Method.  Additionally, please note that some of the annual precipitation figures are not the official figures.


Station Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann

Big Meadows PET 0.00 0.00 0.35 1.68 3.06 4.09 4.71 4.26 3.05 1.69 0.58 0.00 23.47
Annual Precip. 3.26 3.44 3.87 3.84 4.77 4.41 4.50 4.34 4.81 5.24 5.20 3.50 51.18
Precip.-PET 3.26 3.44 3.52 2.16 1.71 0.32 -0.21 0.08 1.76 3.55 4.62 3.50 27.71
Burkes Garden PET 0.00 0.00 0.73 1.88 3.18 4.12 4.73 4.29 3.09 1.72 0.65 0.07 24.47
Annual Precip. 3.50 3.27 4.10 3.68 4.01 3.95 4.71 3.71 3.48 2.91 3.07 3.28 43.67
Precip.-PET 3.50 3.27 3.37 1.80 0.83 -0.17 -0.02 -0.58 0.39 1.19 2.42 3.21 19.20
Charlottesville PET 0.08 0.15 0.87 2.24 3.84 5.16 6.04 5.45 3.87 2.14 0.91 0.22 30.98
Annual Precip. 3.28 3.18 4.16 3.28 4.17 3.91 4.51 4.51 3.90 4.20 3.27 3.35 45.72
Precip.-PET 3.20 3.03 3.29 1.04 0.33 -1.25 -1.53 -0.94 0.03 2.06 2.36 3.13 14.74
Chatham PET 0.12 0.21 0.91 2.14 3.71 4.96 5.83 5.28 3.69 2.02 0.87 0.25 29.99
Annual Precip. 3.41 3.32 4.16 3.54 3.89 3.60 3.94 3.80 3.79 3.55 3.09 3.39 43.48
Precip.-PET 3.29 3.11 3.25 1.40 0.18 -1.36 -1.89 -1.48 0.10 1.53 2.22 3.14 13.49
Columbia PET 0.06 0.14 0.85 2.16 3.73 5.11 5.99 5.40 3.78 1.99 0.81 0.20 30.22
Annual Precip. 2.96 2.77 3.51 2.99 3.62 3.18 3.63 4.01 3.37 3.92 3.00 3.02 39.98
Precip.-PET 2.90 2.63 2.66 0.83 -0.11 -1.93 -2.36 -1.39 -0.41 1.93 2.19 2.82 9.76
Dale Enterprise PET 0.00 0.08 0.77 2.00 3.53 4.79 5.55 5.00 3.50 1.87 0.73 0.13 27.95
Annual Precip. 1.99 2.07 2.87 2.57 3.36 3.27 3.68 3.90 3.23 2.86 2.41 2.20 34.41
Precip.-PET 1.99 1.99 2.10 0.57 -0.17 -1.52 -1.87 -1.10 -0.27 0.99 1.68 2.07 6.46
Danville PET 0.16 0.26 0.99 2.35 3.96 5.31 6.23 5.69 3.91 2.08 0.88 0.27 32.09
Annual Precip. 3.43 3.32 4.01 3.45 3.73 3.86 4.06 4.04 3.68 3.23 2.82 3.31 42.94
Precip.-PET 3.27 3.06 3.02 1.10 -0.23 -1.45 -2.17 -1.65 -0.23 1.15 1.94 3.04 10.85
Farmville PET 0.15 0.26 1.01 2.34 3.81 5.13 6.00 5.41 3.71 2.04 0.88 0.27 31.00
Annual Precip. 3.46 3.30 3.89 3.16 3.82 3.63 4.24 4.07 3.38 3.51 3.17 3.30 42.93
Precip.-PET 3.31 3.04 2.88 0.82 0.01 -1.50 -1.76 -1.34 -0.33 1.47 2.29 3.03 11.93
Floyd PET 0.02 0.13 0.82 2.01 3.37 4.38 5.06 4.62 3.27 1.85 0.73 0.17 26.42
Annual Precip. 2.95 3.34 3.94 3.71 3.51 3.74 3.73 3.25 4.19 3.70 3.05 3.04 42.15
Precip.-PET 2.93 3.21 3.12 1.70 0.14 -0.64 -1.33 -1.37 0.92 1.85 2.32 2.87 15.73
Fredricksburg PET 0.07 0.13 0.84 2.11 3.80 5.23 6.11 5.46 3.83 2.04 0.82 0.20 30.66
Annual Precip. 3.11 2.88 3.84 3.06 3.47 3.64 3.68 4.41 3.36 3.20 3.04 3.30 40.99
Precip.-PET 3.04 2.75 3.00 0.95 -0.33 -1.59 -2.43 -1.05 -0.47 1.16 2.22 3.10 10.33
Hot Springs PET 0.00 0.03 0.68 1.94 3.41 4.50 5.14 4.69 3.33 1.83 0.69 0.08 26.32
Annual Precip. 3.04 2.94 4.12 3.31 3.85 3.67 4.15 3.82 3.51 3.53 2.82 2.96 41.72
Precip.-PET 3.04 2.91 3.44 1.37 0.44 -0.83 -0.99 -0.87 0.18 1.70 2.13 2.88 15.40
John H. Kerr
Dam
PET 0.15 0.23 0.94 2.27 3.90 5.27 6.19 5.58 3.84 2.08 0.91 0.29 31.65
Annual Precip. 3.40 3.25 3.59 2.99 3.57 3.40 4.31 3.79 3.51 3.42 3.08 3.22 41.53
Precip.-PET 3.25 3.02 2.65 0.72 -0.33 -1.87 -1.88 -1.79 -0.33 1.34 2.17 2.93 9.88
Lexington PET 0.07 0.19 0.93 2.20 3.75 4.97 5.72 5.19 3.65 1.96 0.79 0.20 29.62
Annual Precip. 2.54 2.82 3.33 2.87 3.65 3.18 3.66 3.17 3.16 3.55 3.02 2.91 37.86
Precip.-PET 2.47 2.63 2.40 0.67 -0.10 -1.79 -2.06 -2.02 -0.49 1.59 2.23 2.71 8.24
Lynchburg PET 0.09 0.19 0.90 2.21 3.72 4.99 5.85 5.31 3.70 2.03 0.85 0.23 30.08
Annual Precip. 3.06 2.93 3.69 2.90 3.65 3.47 3.85 3.69 3.23 3.36 2.92 3.16 39.91
Precip.-PET 2.97 2.74 2.79 0.69 -0.07 -1.52 -2.00 -1.62 -0.47 1.33 2.07 2.93 9.83
Norfolk PET 0.25 0.30 0.97 2.20 3.80 5.37 6.34 5.79 4.14 2.33 1.09 0.44 33.00
Annual Precip. 3.72 3.28 3.86 2.87 3.75 3.45 5.15 5.33 4.35 3.41 2.88 3.17 45.22
Precip.-PET 3.47 2.98 2.89 0.67 -0.05 -1.92 -1.19 -0.46 0.21 1.08 1.79 2.73 12.22
Painter PET 0.18 0.25 0.89 2.06 3.66 5.14 6.07 5.50 3.93 2.20 1.02 0.37 31.25
Annual Precip. 3.41 3.31 4.13 2.92 3.47 3.51 4.10 4.28 3.41 3.57 2.96 3.37 42.44
Precip.-PET 3.23 3.06 3.24 0.86 -0.19 -1.63 -1.97 -1.22 -0.52 1.37 1.94 3.00 11.19
Pennington Gap PET 0.05 0.18 0.93 2.14 3.59 4.72 5.45 4.97 3.60 1.96 0.75 0.19 28.53
Annual Precip. 4.88 4.40 5.75 4.35 4.39 4.17 5.07 3.76 3.47 2.96 3.89 4.66 51.75
Precip.-PET 4.83 4.22 4.82 2.21 0.80 -0.55 -0.38 -1.21 -0.13 1.00 3.14 4.47 23.22
Piedmont
Research
Station
PET 0.04 0.11 0.80 2.10 3.69 5.10 5.94 5.34 3.77 2.01 0.82 0.17 29.89
Annual Precip. 2.79 2.58 3.69 3.07 3.70 3.69 3.77 4.44 3.36 3.81 3.09 3.10 41.09
Precip.-PET 2.75 2.47 2.89 0.97 0.01 -1.41 -2.17 -0.90 -0.41 1.80 2.27 2.93 11.20
Richmond PET 0.12 0.23 0.94 2.28 3.89 5.31 6.23 5.64 3.92 2.07 0.90 0.28 31.81
Annual Precip. 3.23 3.13 3.57 2.90 3.55 3.60 5.14 5.01 3.52 3.74 3.29 3.39 44.07
Precip.-PET 3.11 2.90 2.63 0.62 -0.34 -1.71 -1.09 -0.63 -0.40 1.67 2.39 3.11 12.26
Roanoke PET 0.10 0.22 0.94 2.20 3.75 4.99 5.85 5.30 3.67 2.00 0.84 0.23 30.09
Annual Precip. 2.83 3.19 3.69 3.09 3.51 3.34 3.45 3.91 3.14 3.48 2.59 2.93 39.15
Precip.-PET 2.73 2.97 2.75 0.89 -0.24 -1.65 -2.40 -1.39 -0.53 1.48 1.75 2.70 9.06
Staunton PET 0.01 0.07 0.74 2.00 3.52 4.77 5.52 4.95 3.47 1.88 0.76 0.15 27.84
Annual Precip. 2.53 2.19 3.19 2.79 3.36 3.03 3.51 3.40 3.55 3.26 2.56 2.55 35.92
Precip.-PET 2.52 2.12 2.45 0.79 -0.16 -1.74 -2.01 -1.55 0.08 1.38 1.80 2.40 8.08
Suffolk-Lake
Kilby
PET 0.21 0.31 0.99 2.25 3.85 5.31 6.24 5.70 4.00 2.21 1.00 0.37 32.44
Annual Precip. 3.90 3.64 4.11 2.95 3.81 4.04 4.99 5.20 4.28 3.63 2.94 3.44 46.93
Precip.-PET 3.69 3.33 3.12 0.70 -0.04 -1.27 -1.25 -0.50 0.28 1.42 1.94 3.07 14.49
Washington
Dulles WSO
PET 0.00 0.04 0.68 1.96 3.53 4.95 5.91 5.33 3.68 1.92 0.74 0.10 28.84
Annual Precip. 2.70 2.81 3.17 3.11 4.02 3.92 3.49 3.94 3.36 3.20 3.30 3.22 40.25
Precip.-PET 2.70 2.77 2.49 1.15 0.49 -1.03 -2.42 -1.39 -0.32 1.28 2.56 3.12 11.41
Washington
National WSO
PET 0.07 0.16 0.80 2.13 3.87 5.50 6.51 5.84 4.06 2.15 0.88 0.22 32.19
Annual Precip. 2.76 2.62 3.46 2.93 3.48 3.35 3.88 4.40 3.22 2.90 2.82 3.18 39.00
Precip.-PET 2.69 2.46 2.66 0.80 -0.39 -2.15 -2.63 -1.44 -0.84 0.75 1.94 2.96 6.81
Williamsburg PET 0.20 0.28 0.97 2.27 3.86 5.23 6.14 5.61 3.97 2.21 1.01 0.36 32.09
Annual Precip. 3.74 3.49 4.22 2.98 4.40 4.21 5.23 4.68 4.42 3.56 3.21 3.43 47.57
Precip.-PET 3.54 3.21 3.25 0.71 0.54 -1.02 -0.91 -0.93 0.45 1.35 2.20 3.07 15.48
Winchester PET 0.00 0.07 0.75 2.07 3.68 4.99 5.82 5.26 3.67 1.97 0.77 0.13 29.18
Annual Precip. 2.38 2.48 3.06 3.08 3.74 3.87 3.89 3.46 3.11 3.19 3.10 2.52 37.88
Precip.-PET 2.38 2.41 2.31 1.01 0.06 -1.12 -1.93 -1.80 -0.56 1.22 2.33 2.39 8.70
Woodstock PET 0.02 0.12 0.81 2.08 3.63 4.94 5.75 5.21 3.63 1.97 0.80 0.17 29.14
Annual Precip. 2.40 1.98 2.92 2.85 3.23 3.48 3.61 3.47 3.22 2.92 2.30 2.34 34.72
Precip.-PET 2.38 1.86 2.11 0.77 -0.40 -1.46 -2.14 -1.74 -0.41 0.95 1.50 2.17 5.58
Wytheville PET 0.03 0.14 0.85 2.01 3.43 4.46 5.17 4.71 3.39 1.89 0.74 0.16 26.99
Annual Precip. 2.63 2.73 3.46 3.11 3.58 3.11 4.49 3.36 3.06 2.95 2.38 2.60 37.46
Precip.-PET 2.60 2.59 2.61 1.10 0.15 -1.35 -0.68 -1.35 -0.33 1.06 1.64 2.44 10.47