WETS Station : ANKENY, IA0241 Latitude: 4144 Longitude: 09334 Elevation: 00940 State FIPS/County(FIPS): 19153 County Name: Polk Start yr. - 1971 End yr. - 2000 -------------------------------------------------------------------------| | Temperature | Precipitation | | (Degrees F.) | (Inches) | |-----------------------|--------------------------------------| | | | | | 30% chance |avg | | | | | | | will have |# of| avg | |-------|-------|-------| |-----------------|days| total| Month | avg | avg | avg | avg | less | more |w/.1| snow | | daily | daily | | | than | than | or| fall | | max | min | | | | |more| | -------------------------------------------------------------------------| January | 28.2 | 9.5 | 18.9 | 0.67 | 0.31 | 0.81 | 2 | 6.0 | February | 34.6 | 15.5 | 25.0 | 0.97 | 0.56 | 1.18 | 2 | 6.5 | March | 47.1 | 26.7 | 36.9 | 2.05 | 0.97 | 2.51 | 4 | 3.6 | April | 60.9 | 38.0 | 49.5 | 3.18 | 1.77 | 3.87 | 6 | 1.1 | May | 72.2 | 49.9 | 61.1 | 4.36 | 3.05 | 5.18 | 7 | 0.0 | June | 81.3 | 59.4 | 70.3 | 4.99 | 3.52 | 5.92 | 6 | 0.0 | July | 85.7 | 63.8 | 74.7 | 4.13 | 2.31 | 5.03 | 6 | 0.0 | August | 83.0 | 60.8 | 71.9 | 4.36 | 2.48 | 5.31 | 6 | 0.0 | September | 75.9 | 52.0 | 63.9 | 3.03 | 1.49 | 3.71 | 5 | 0.0 | October | 63.4 | 39.5 | 51.4 | 2.50 | 1.29 | 3.05 | 4 | 0.4 | November | 46.1 | 27.3 | 36.7 | 1.94 | 1.10 | 2.44 | 4 | 2.0 | December | 32.3 | 14.8 | 23.6 | 1.01 | 0.44 | 1.24 | 2 | 6.6 | ----------|-------|-------|-------|--------|--------|--------|----|------| ----------|-------|-------|-------|--------|--------|--------|----|------| Annual | ----- | ----- | ----- | ------ | 26.75 | 35.93 | -- | ---- | ----------|-------|-------|-------|--------|--------|--------|----|------| Average | 59.2 | 38.1 | 48.7 | ------ | ------ | ------ | -- | ---- | ----------|-------|-------|-------|--------|--------|--------|----|------| Total | ----- | ----- | ----- | 33.19 | ------ | ------ | 54 | 26.1 | ----------|-------|-------|-------|--------|--------|--------|----|------| -------------------------------------------------------------------------| GROWING SEASON DATES --------------------------------------------------------------------------- | Temperature ---------------------|----------------------------------------------------- Probability | 24 F or higher | 28 F or higher | 32 F or higher | ---------------------|-----------------|-----------------|----------------- | Beginning and Ending Dates | Growing Season Length | 50 percent * | 4/ 4 to 10/26 | 4/11 to 10/15 | 4/24 to 10/ 3 | 205 days | 187 days | 162 days | | | 70 percent * | 3/30 to 10/30 | 4/ 7 to 10/19 | 4/21 to 10/ 6 | 215 days | 195 days | 169 days | | | --------------------------------------------------------------------------- * Percent chance of the growing season occurring between the Beginning and Ending dates. total 1950-2002 prcp Station : IA0241, ANKENY ------- Unit = inches yr jan feb mar apr may jun jul aug sep oct nov dec annl ------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- 50 4.50 5.90 1.73 1.42 0.54 1.05 0.18 0.28 15.60 51 0.37 2.30 M4.16 4.19 5.06 5.12 5.03 6.23 2.44 2.79 1.15 M0.89 39.73 52 0.92 0.44 3.35 1.31 4.67 9.20 4.18 4.71 0.35 0.00 2.71 0.79 32.63 53 0.52 1.56 1.94 3.06 3.81 3.77 3.70 0.81 0.63 0.09 1.20 0.80 21.89 54 0.07 1.21 1.57 2.82 6.01 8.55 4.24 12.38 2.52 4.15 0.00 0.57 44.09 55 0.68 0.90 0.72 3.32 2.32 1.77 3.98 0.61 3.92 0.87 0.04 0.40 19.53 56 0.25 0.43 1.85 2.06 2.24 5.32 3.54 2.24 1.63 1.73 0.24 21.53 57 0.26 0.15 1.53 2.41 4.99 3.55 1.60 2.86 1.87 3.66 2.08 0.59 25.55 58 0.51 0.36 0.41 1.12 3.18 3.07 9.90 0.94 3.37 1.52 1.64 0.17 26.19 59 0.80 0.90 3.75 4.45 6.54 3.55 1.57 1.57 2.85 2.13 2.83 1.31 32.25 60 2.42 1.66 0.74 2.86 6.21 4.56 3.34 7.54 2.70 1.42 0.54 0.36 34.35 61 0.25 2.60 4.46 1.97 1.32 3.90 5.94 1.99 7.85 2.51 2.59 1.09 36.47 62 0.21 1.06 1.15 1.44 5.22 2.55 3.05 2.30 1.98 3.70 0.40 0.36 23.42 63 0.50 0.39 2.96 5.27 3.63 1.17 3.14 6.79 1.72 0.61 1.33 0.36 27.87 64 0.42 0.37 0.76 3.82 3.61 7.12 2.85 4.04 3.66 0.22 0.90 0.77 28.54 65 1.26 1.02 2.27 4.62 3.74 3.29 3.50 3.32 6.44 0.74 1.78 2.04 34.02 66 0.94 0.23 1.59 1.09 4.63 8.89 2.82 2.13 0.91 0.58 0.47 0.46 24.74 67 0.62 0.19 1.48 2.64 2.30 10.72 0.70 0.58 1.91 1.97 0.33 0.58 24.02 68 0.72 0.05 1.02 4.85 1.66 4.17 4.65 3.15 3.74 2.25 0.96 2.39 29.61 69 0.73 0.54 0.89 3.67 5.38 4.91 7.15 0.87 2.89 3.16 0.18 0.60 30.97 70 0.21 0.07 2.95 1.97 6.88 2.80 3.29 3.92 4.58 4.29 1.59 1.05 33.60 71 0.30 M1.97 0.32 1.25 4.08 3.94 2.30 1.12 2.21 3.41 2.79 1.02 24.71 72 0.31 0.61 0.71 2.75 3.32 5.37 2.90 5.52 5.67 3.60 2.18 1.72 34.66 73 2.06 3.72 7.59 3.15 1.42 2.46 20.40 74 1.16 0.48 1.94 5.65 7.35 6.35 0.49 3.05 2.43 3.35 1.48 0.92 34.65 75M1.26 1.45 1.44 1.43 3.54 7.98 0.54 5.50 1.99 0.34 3.01 0.39 28.87 76 0.11 2.64 3.29 7.74 M1.29 4.88 3.00 0.66 0.55 1.22 0.00 M0.00 25.38 77 0.60 0.37 3.49 2.34 2.63 2.99 1.79 12.02 5.46 4.64 0.18 M0.42 36.93 78M0.33 0.91 0.53 4.49 3.02 3.91 4.07 2.69 6.73 1.12 3.06 0.19 31.05 79M0.20 4.99 2.86 5.33 2.82 3.86 1.54 M0.18 21.78 80M1.57 0.58 0.81 1.08 2.57 4.72 1.31 6.65 1.29 2.09 0.29 M0.85 23.81 81 0.15 M1.05 0.64 1.77 3.48 4.08 4.07 4.80 1.98 1.59 2.16 0.97 26.74 82M2.40 0.66 2.98 3.80 6.32 3.47 9.65 5.13 1.96 3.22 3.60 3.68 46.87 83 1.09 1.63 4.13 3.39 4.35 10.08 3.49 4.41 3.72 5.27 5.88 1.06 48.50 84 0.89 1.11 1.86 6.15 5.33 8.70 7.95 1.22 2.29 4.47 2.34 2.02 44.33 85 0.51 1.89 2.30 0.33 1.73 2.75 1.51 2.44 4.71 2.55 1.03 1.52 23.27 86 0.13 1.18 1.94 8.17 6.01 8.30 6.81 3.69 6.13 4.31 0.64 0.79 48.10 87 0.29 0.76 2.26 1.59 3.64 2.01 6.33 9.75 1.60 0.69 2.33 2.10 33.35 88M0.34 0.45 0.63 0.89 1.31 1.54 3.71 2.31 2.43 0.23 3.35 0.35 17.54 89 0.42 0.70 0.43 1.37 4.03 3.67 4.39 4.23 M0.01 3.12 M0.00 M0.08 22.45 90M0.23 M0.35 7.87 2.66 M4.71 M9.93 8.99 2.32 0.85 1.51 1.87 M0.45 41.74 91M0.02 0.07 4.04 6.89 6.18 4.33 1.05 6.40 2.18 3.51 3.68 1.13 39.48 92M0.89 1.40 2.77 3.36 1.05 1.51 9.16 1.16 3.67 0.25 M3.37 1.82 30.41 93M0.95 M1.00 2.88 2.93 7.82 M5.73 11.13 12.87 5.14 1.66 0.94 0.68 53.73 94M1.06 1.23 M0.13 1.91 3.67 5.42 1.71 4.18 4.13 1.31 M1.99 M1.72 28.46 95M0.53 M0.53 3.82 6.92 4.98 3.59 2.94 2.76 3.24 1.04 1.48 M0.27 32.10 96M0.91 0.24 0.45 1.24 M8.47 4.32 2.51 2.14 3.72 2.65 2.72 M0.39 29.76 97M0.72 0.70 1.40 M1.84 M3.72 M2.02 3.85 1.36 2.43 5.15 M0.81 M0.71 24.71 98M1.01 M0.95 M1.45 1.40 6.20 8.46 3.62 0.70 3.83 1.54 M0.05 29.21 99M0.19 M0.17 0.79 4.24 5.92 4.09 4.45 6.55 2.37 0.20 1.08 M0.54 30.59 0M0.55 1.09 M0.53 1.40 5.40 M5.65 3.16 1.78 1.02 1.66 1.48 M1.71 25.43 1 0.82 M0.22 M1.03 4.14 6.27 2.05 1.92 4.44 2.56 0.83 M0.96 25.24 2 ---------- WETS Station : DES MOINES WSFO ARPT, IA2203 Creation Date: 09/05/2002 Latitude: 4132 Longitude: 09339 Elevation: 00940 State FIPS/County(FIPS): 19153 County Name: Polk Start yr. - 1971 End yr. - 2000 -------------------------------------------------------------------------| | Temperature | Precipitation | | (Degrees F.) | (Inches) | |-----------------------|--------------------------------------| | | | | | 30% chance |avg | | | | | | | will have |# of| avg | |-------|-------|-------| |-----------------|days| total| Month | avg | avg | avg | avg | less | more |w/.1| snow | | daily | daily | | | than | than | or| fall | | max | min | | | | |more| | -------------------------------------------------------------------------| January | 29.1 | 11.9 | 20.5 | 1.03 | 0.50 | 1.26 | 2 | 8.7 | February | 35.5 | 18.0 | 26.7 | 1.19 | 0.78 | 1.43 | 3 | 8.1 | March | 48.3 | 28.9 | 38.6 | 2.21 | 1.13 | 2.70 | 4 | 4.0 | April | 61.4 | 40.2 | 50.8 | 3.58 | 2.20 | 4.33 | 6 | 2.7 | May | 72.5 | 51.7 | 62.1 | 4.25 | 2.92 | 5.07 | 8 | 0.0 | June | 81.9 | 61.4 | 71.7 | 4.57 | 3.06 | 5.47 | 7 | 0.0 | July | 86.1 | 66.4 | 76.3 | 4.18 | 2.30 | 5.10 | 6 | 0.0 | August | 83.9 | 64.2 | 74.0 | 4.51 | 2.43 | 5.50 | 6 | 0.0 | September | 75.9 | 54.7 | 65.3 | 3.15 | 1.95 | 3.81 | 5 | 0.0 | October | 63.6 | 42.6 | 53.1 | 2.62 | 1.49 | 3.19 | 4 | 0.4 | November | 46.8 | 29.4 | 38.1 | 2.10 | 1.14 | 2.56 | 4 | 4.4 | December | 33.2 | 17.0 | 25.1 | 1.34 | 0.67 | 1.63 | 3 | 7.1 | ----------|-------|-------|-------|--------|--------|--------|----|------| ----------|-------|-------|-------|--------|--------|--------|----|------| Annual | ----- | ----- | ----- | ------ | 30.65 | 38.09 | -- | ---- | ----------|-------|-------|-------|--------|--------|--------|----|------| Average | 59.8 | 40.5 | 50.2 | ------ | ------ | ------ | -- | ---- | ----------|-------|-------|-------|--------|--------|--------|----|------| Total | ----- | ----- | ----- | 34.73 | ------ | ------ | 58 | 35.5 | ----------|-------|-------|-------|--------|--------|--------|----|------| -------------------------------------------------------------------------| GROWING SEASON DATES --------------------------------------------------------------------------- | Temperature ---------------------|----------------------------------------------------- Probability | 24 F or higher | 28 F or higher | 32 F or higher | ---------------------|-----------------|-----------------|----------------- | Beginning and Ending Dates | Growing Season Length | 50 percent * | 3/31 to 11/ 3 | 4/ 6 to 10/24 | 4/19 to 10/10 | 217 days | 201 days | 174 days | | | 70 percent * | 3/27 to 11/ 7 | 4/ 2 to 10/28 | 4/16 to 10/14 | 225 days | 208 days | 181 days | | | --------------------------------------------------------------------------- * Percent chance of the growing season occurring between the Beginning and Ending dates. total 1948-2002 prcp Station : IA2203, DES MOINES WSFO ARPT ------- Unit = inches yr jan feb mar apr may jun jul aug sep oct nov dec annl ------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- 48 1.98 3.36 6.98 1.37 1.27 1.43 3.61 1.90 21.90 49 3.12 1.07 2.38 1.07 1.23 4.53 3.13 1.76 2.21 1.59 0.57 0.72 23.38 50 1.40 2.23 0.81 3.12 5.60 4.82 2.93 2.05 0.41 0.77 0.38 0.27 24.79 51M0.59 2.99 3.86 5.20 5.56 3.86 4.46 4.74 1.39 2.64 1.81 0.93 38.03 52 1.03 0.80 4.03 1.52 4.15 5.74 2.57 5.70 0.53 0.03 4.60 1.15 31.85 53 0.76 2.00 2.37 3.22 2.22 4.03 1.71 0.71 0.66 0.13 1.22 0.97 20.00 54 0.07 1.35 1.86 3.48 5.90 5.30 1.01 10.47 1.98 3.95 0.06 0.78 36.21 55 1.35 1.52 0.89 2.63 2.93 1.71 3.69 1.77 4.42 0.52 0.11 0.44 21.98 56 0.51 0.46 0.51 1.24 1.71 1.29 2.76 3.47 1.21 1.66 1.79 0.46 17.07 57M0.79 0.13 1.74 2.84 5.36 3.67 2.47 2.93 1.79 3.29 1.94 1.33 28.28 58 0.71 0.61 0.61 1.31 3.59 3.34 10.51 1.78 4.06 0.07 2.00 0.25 28.84 59 0.79 1.07 3.94 3.51 6.63 5.71 1.63 2.44 3.13 2.64 2.91 1.91 36.31 60 4.38 1.58 1.46 2.40 7.53 3.46 1.99 6.78 2.54 2.11 0.52 0.45 35.20 61 0.33 2.68 5.37 2.39 1.58 2.92 7.05 2.77 10.19 3.00 2.78 M1.82 42.88 62 0.54 1.60 1.42 2.51 6.02 3.96 2.94 1.60 1.93 3.22 0.80 0.50 27.04 63 0.83 0.72 2.39 4.18 3.94 1.13 4.01 4.83 1.88 2.56 1.36 0.54 28.37 64 0.51 0.28 1.25 3.29 2.90 6.49 3.37 3.94 4.28 0.29 0.96 0.87 28.43 65 1.62 1.14 3.04 4.18 3.89 4.80 1.93 1.93 7.23 0.79 1.79 1.64 33.98 66M0.96 M0.25 1.56 1.74 5.37 5.22 2.43 2.09 0.75 0.29 0.70 0.49 21.85 67 0.77 0.28 1.64 2.25 2.22 7.39 0.81 0.79 2.54 1.93 0.47 0.73 21.82 68M0.78 0.13 0.93 4.19 2.62 3.42 4.48 4.05 2.63 1.47 1.90 1.71 28.31 69 1.01 0.97 1.41 4.46 4.75 7.32 4.34 1.83 2.43 2.87 0.03 1.01 32.43 70 0.26 0.24 3.28 2.28 4.21 2.45 1.96 4.95 6.51 5.20 1.46 0.83 33.63 71 1.75 2.35 0.42 1.54 3.87 4.31 2.16 1.83 2.19 3.51 3.29 1.12 28.34 72 0.44 0.63 1.05 3.56 3.05 2.58 5.86 6.65 5.45 2.36 2.43 1.97 36.03 73 2.09 2.21 4.15 4.67 5.01 2.04 9.17 1.37 7.07 3.26 1.49 M2.66 45.19 74M1.51 0.84 1.99 6.31 7.19 4.62 1.33 2.81 2.08 3.96 1.20 1.83 35.67 75 1.41 1.48 1.90 2.65 3.41 5.98 0.04 9.73 1.70 0.63 2.22 0.48 31.63 76 0.23 2.43 3.04 7.76 2.84 7.25 1.87 2.26 1.00 1.11 0.10 M0.12 30.01 77M0.50 0.36 3.57 2.45 2.29 1.25 2.63 13.68 2.82 5.10 0.69 1.81 37.15 78 0.28 1.27 0.90 4.57 3.49 2.74 2.95 3.10 6.39 1.14 3.16 1.37 31.36 79M1.72 0.52 4.23 3.23 2.50 5.78 2.96 5.07 0.97 3.23 1.43 M0.20 31.84 80M1.82 0.64 1.15 0.86 1.94 5.56 1.52 7.24 1.03 1.90 0.45 1.00 25.11 81M0.25 M0.97 0.39 2.00 2.46 5.02 5.76 6.32 2.30 2.06 2.63 1.14 31.30 82 2.63 0.78 3.30 5.03 5.79 2.59 7.00 5.25 2.94 3.44 2.62 3.43 44.80 83 1.17 1.95 3.72 3.80 3.93 3.65 2.44 3.01 3.87 5.54 6.52 M1.57 41.17 84M1.01 0.82 M1.65 5.85 5.58 7.81 6.22 0.25 2.76 6.28 1.16 2.41 41.80 85 0.64 M1.98 3.37 0.23 1.56 3.72 2.04 2.83 5.42 3.75 M1.65 1.30 28.49 86 0.12 1.76 2.92 5.66 4.35 7.08 3.90 4.52 6.41 3.89 0.99 0.98 42.58 87 0.42 1.38 2.99 2.92 3.75 2.10 5.08 10.04 1.40 1.03 3.27 2.59 36.97 88 0.37 0.59 0.66 0.75 1.46 2.75 4.78 3.05 2.89 0.59 3.38 0.84 22.11 89 1.30 1.05 0.37 1.95 3.62 2.22 3.65 6.53 5.41 2.28 0.19 0.57 29.14 90 1.43 0.89 5.83 3.43 4.36 9.52 8.75 1.83 1.40 1.80 2.52 2.18 43.94 91 0.95 0.17 3.90 7.54 7.88 2.87 1.14 3.65 0.90 4.96 3.61 2.20 39.77 92 0.97 2.12 2.13 3.99 1.45 1.02 7.76 1.39 4.99 0.51 5.20 1.98 33.51 93 1.59 1.52 3.22 2.96 7.51 7.68 9.75 12.24 5.79 1.70 1.06 0.86 55.88 94 1.22 1.71 0.17 2.71 1.76 5.29 4.30 2.81 3.11 1.02 1.68 2.42 28.20 95 0.98 0.68 2.75 6.04 6.29 2.88 4.36 1.04 3.12 1.24 1.57 0.79 31.74 96 2.99 0.57 1.38 2.12 12.13 2.95 4.02 2.54 4.05 2.87 2.40 0.52 38.54 97M0.04 0.77 0.85 4.11 3.95 4.90 2.89 2.36 2.14 4.62 1.13 0.77 28.53 98 0.60 1.23 3.03 1.79 4.97 9.95 4.28 5.65 0.69 3.39 2.09 0.03 37.70 99 0.26 0.63 0.90 4.43 5.82 3.46 2.78 4.56 2.32 0.36 1.28 0.35 27.15 0 0.27 1.32 0.35 2.36 3.37 7.60 4.12 1.71 1.84 1.07 1.57 0.56 26.14 1 1.31 2.08 1.08 2.20 7.46 2.61 1.04 2.22 4.77 2.12 0.86 0.70 28.45 2 ----------