| Pond Evaporation Calculation | 1/31/25 | |||||||||||||
| Weather Station Data provided by Northern Colorado Water Conservancy District | ||||||||||||||
| See Weather Station Location Map at: | ||||||||||||||
| http://www.northernwater.org/WaterConservation/WeatherandETData.aspx | ||||||||||||||
| Notes: | ||||||||||||||
| Current month reflects values through "Reference Date". | ||||||||||||||
| Pond Evap. calculated per recent Division 1 Water Court decree language: | Lower South Platte Home Page | |||||||||||||
| Gross Pond = .84(Alfalfa ETr) | Pond Evaporation Reports Main Menu | |||||||||||||
| Net Pond = .84(Alfalfa ETr) - .7(Total Precip) | ||||||||||||||
| Alfalfa reference ETr computed by Standard ASCE equation from daily weather data. | ||||||||||||||
| Winter pond evap. is a reference for unfrozen ponds. | ||||||||||||||
| For Growing Degree Days: | ||||||||||||||
| Tmax = 86° F, Tmin = 50° F and Tbase = 50° F | ||||||||||||||
| Totals | ||||||||||||||
| Weather Station | 2024 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | or Avg. |
| Ovid | Avg. Temp ° F | 22.11 | 35.77 | 38.71 | 49.43 | 58.32 | 72.63 | 74.27 | 71.72 | 67.37 | 53.36 | 36.34 | 33.18 | 51.1 |
| Ref date as of 12/31/2024 | Total Precip " | 0.11 | 0.81 | 1.31 | 3.95 | 1.07 | 1.95 | 2.34 | 3.6 | 0.17 | 0.16 | 1.65 | 0 | 17.12 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.79 | 3.4 | 4.76 | 7.47 | 8.21 | 67.62 | 10.37 | 7.53 | 8.26 | 6.25 | 3 | 3.42 | 132.08 |
| Total Growing Degee Days from March 1 | 0 | 0 | 123 | 242 | 360 | 576 | 676 | 649 | 523 | 352 | 73 | 68 | 3642 | |
| Gross Pond Evap | Total " | 1.5 | 2.86 | 4 | 6.27 | 6.9 | 56.8 | 8.71 | 6.33 | 6.94 | 5.25 | 2.52 | 2.87 | 110.95 |
| Net Pond Evap | Total " | 1.43 | 2.29 | 3.08 | 3.51 | 6.15 | 55.44 | 7.07 | 3.81 | 6.82 | 5.14 | 1.37 | 2.87 | 98.98 |
| Crook | Avg. Temp ° F | 22.2 | 35.03 | 38.84 | 49.36 | 57.41 | 71.72 | 72.72 | 71.22 | 65.6 | 51.84 | 35.89 | 33.14 | 50.41 |
| Ref date as of 12/31/2024 | Total Precip " | 0.15 | 0.69 | 1.68 | 2.66 | 1.7 | 1.01 | 1.37 | 3.88 | 0.1 | 0.18 | 1.44 | 0 | 14.86 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 2.23 | 3.63 | 5.07 | 7.46 | 8.35 | 10.27 | 9.04 | 7.52 | 7.56 | 5.67 | 3.35 | 3.66 | 73.81 |
| Total Growing Degee Days from March 1 | 0 | 0 | 126 | 241 | 346 | 613 | 639 | 634 | 498 | 348 | 81 | 70 | 3596 | |
| Gross Pond Evap | Inch | 1.87 | 3.05 | 4.26 | 6.27 | 7.01 | 8.63 | 7.59 | 6.32 | 6.35 | 4.76 | 2.81 | 3.07 | 61.99 |
| Net Pond Evap | Inch | 1.77 | 2.57 | 3.08 | 4.4 | 5.82 | 7.92 | 6.63 | 3.6 | 6.28 | 4.64 | 1.81 | 3.07 | 51.59 |
| Sterling | Avg. Temp ° F | 23.12 | 35.97 | 39.64 | 50.19 | 57.63 | 72.03 | 73.43 | 71.95 | 65.95 | 52.78 | 35.39 | 32.67 | 50.9 |
| Ref date as of 12/31/2024 | Total Precip " | 0.13 | 0.9 | 0.74 | 2.51 | 1.4 | 1.85 | 1.38 | 3.19 | 0.03 | 0.33 | 1.49 | 0 | 13.95 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.9 | 3.37 | 4.99 | 7.39 | 8.4 | 10.72 | 10.07 | 7.59 | 7.32 | 5.8 | 2.97 | 3.26 | 73.78 |
| Total Growing Degee Days from March 1 | 0 | 0 | 138 | 255 | 344 | 623 | 642 | 642 | 495 | 358 | 77 | 74 | 3648 | |
| Gross Pond Evap | Inch | 1.6 | 2.83 | 4.19 | 6.21 | 7.06 | 9 | 8.46 | 6.38 | 6.15 | 4.87 | 2.49 | 2.74 | 61.98 |
| Net Pond Evap | Inch | 1.51 | 2.2 | 3.67 | 4.45 | 6.08 | 7.71 | 7.49 | 4.14 | 6.13 | 4.64 | 1.45 | 2.74 | 52.21 |
| Brush | Avg. Temp ° F | 22.51 | 35.29 | 39.56 | 49.79 | 56.82 | 71.36 | 72.39 | 71.18 | 64.18 | 53.21 | 34.12 | 32.06 | 50.21 |
| Ref date as of 12/31/2024 | Total Precip " | 0.18 | 1.05 | 0.44 | 2.05 | 1.08 | 1.29 | 0.76 | 5.38 | 0.78 | 0.2 | 1.81 | 0 | 15.02 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.92 | 3.37 | 5.06 | 7.15 | 7.34 | 9.61 | 9.34 | 7.32 | 6.26 | 5.54 | 2.52 | 2.64 | 68.07 |
| Total Growing Degee Days from March 1 | 0 | 0 | 151 | 265 | 348 | 601 | 627 | 645 | 490 | 375 | 56 | 73 | 3631 | |
| Gross Pond Evap | Inch | 1.61 | 2.83 | 4.25 | 6.01 | 6.17 | 8.07 | 7.85 | 6.15 | 5.26 | 4.65 | 2.12 | 2.22 | 57.19 |
| Net Pond Evap | Inch | 1.49 | 2.1 | 3.94 | 4.57 | 5.41 | 7.17 | 7.31 | 2.38 | 4.71 | 4.51 | 0.85 | 2.22 | 46.66 |
| Fort Morgan | Avg. Temp ° F | 23.42 | 35.48 | 40.47 | 50.83 | 58.04 | 72.35 | 73.7 | 72.25 | 66.92 | 54.86 | 36.22 | 33.94 | 51.54 |
| Ref date as of 12/31/2024 | Total Precip " | 0.14 | 1 | 0.68 | 2.09 | 1.4 | 2.49 | 2.1 | 3.51 | 1.14 | 0.23 | 1.33 | 0 | 16.11 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.83 | 2.79 | 4.46 | 6.71 | 7.7 | 9.36 | 8.94 | 7.08 | 6.29 | 5 | 2.3 | 2.46 | 64.92 |
| Total Growing Degee Days from March 1 | 0 | 0 | 142 | 259 | 355 | 624 | 654 | 660 | 514 | 383 | 70 | 76 | 3737 | |
| Gross Pond Evap | Inch | 1.54 | 2.34 | 3.75 | 5.64 | 6.47 | 7.86 | 7.51 | 5.95 | 5.28 | 4.2 | 1.93 | 2.07 | 54.54 |
| Net Pond Evap | Inch | 1.44 | 1.64 | 3.27 | 4.17 | 5.49 | 6.12 | 6.04 | 3.49 | 4.49 | 4.04 | 1 | 2.07 | 43.26 |
| Wiggins | Avg. Temp ° F | 23.59 | 35.45 | 40.67 | 50.92 | 58.22 | 72.9 | 74.22 | 72.66 | 65.85 | 53.6 | 34.76 | 32.6 | 51.29 |
| Ref date as of 12/31/2024 | Total Precip " | 0.12 | 1.12 | 0.55 | 1.17 | 1.2 | 3.06 | 1.18 | 1.67 | 1.71 | 0.06 | 1.19 | 0.02 | 13.05 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 2.05 | 3.2 | 5.03 | 7.8 | 8.83 | 11 | 10.98 | 9.08 | 7.24 | 6.01 | 2.8 | 2.8 | 76.82 |
| Total Growing Degee Days from March 1 | 0 | 0 | 148 | 279 | 368 | 624 | 643 | 653 | 503 | 379 | 65 | 67 | 3729 | |
| Gross Pond Evap | Inch | 1.72 | 2.69 | 4.23 | 6.55 | 7.42 | 9.24 | 9.22 | 7.63 | 6.08 | 5.05 | 2.35 | 2.35 | 64.53 |
| Net Pond Evap | Inch | 1.64 | 1.9 | 3.84 | 5.73 | 6.58 | 7.1 | 8.4 | 6.46 | 4.88 | 5.01 | 1.52 | 2.34 | 55.4 |
| Fort Collins East | Avg. Temp ° F | 24.48 | 35.44 | 38.81 | 48.41 | 56.18 | 70.26 | 71.64 | 70.25 | 63.91 | 52.99 | 36.23 | 34.81 | 50.28 |
| Ref date as of 12/31/2024 | Total Precip " | 0.19 | 1.31 | 1.41 | 1.5 | 0.79 | 0.34 | 0.39 | 1.77 | 0.16 | 0.23 | 0.43 | 0 | 8.52 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.88 | 3.08 | 3.96 | 6.17 | 8.05 | 8.6 | 8.69 | 7.53 | 6.78 | 5.25 | 2.78 | 3.1 | 65.87 |
| Total Growing Degee Days from March 1 | 0 | 0 | 102 | 216 | 327 | 561 | 598 | 601 | 497 | 349 | 66 | 59 | 3376 | |
| Gross Pond Evap | Inch | 1.58 | 2.59 | 3.33 | 5.18 | 6.76 | 7.22 | 7.3 | 6.33 | 5.7 | 4.41 | 2.34 | 2.6 | 55.34 |
| Net Pond Evap | Inch | 1.45 | 1.67 | 2.34 | 4.13 | 6.21 | 6.99 | 7.03 | 5.09 | 5.58 | 4.25 | 2.03 | 2.6 | 49.37 |
| Eaton | Avg. Temp ° F | 24.01 | 33.72 | 39.41 | 48.92 | 56.77 | 70.19 | 70.34 | 69.7 | 63.46 | 52.41 | 35.18 | 33.85 | 49.83 |
| Ref date as of 12/31/2024 | Total Precip " | 0.28 | 1.32 | 1.02 | 1.26 | 0.6 | 1.28 | 0.47 | 1.19 | 0.8 | 0.23 | 1.19 | 0 | 9.64 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 2.15 | 2.74 | 4.55 | 7.27 | 9.25 | 9.54 | 7.59 | 6.8 | 6.03 | 4.93 | 2.76 | 3.14 | 66.75 |
| Total Growing Degee Days from March 1 | 0 | 0 | 111 | 237 | 342 | 578 | 545 | 610 | 482 | 327 | 60 | 52 | 3344 | |
| Gross Pond Evap | Inch | 1.81 | 2.3 | 3.82 | 6.11 | 7.77 | 8.01 | 6.38 | 5.71 | 5.07 | 4.14 | 2.32 | 2.64 | 56.08 |
| Net Pond Evap | Inch | 1.61 | 1.38 | 3.11 | 5.22 | 7.35 | 7.12 | 6.05 | 4.88 | 4.51 | 3.98 | 1.49 | 2.64 | 49.34 |
| Johnsons Corner | Avg. Temp ° F | 27.24 | 36.93 | 40.63 | 50.18 | 56.98 | 71.9 | 74.03 | 72.47 | 66.72 | 55.49 | 37.01 | 37.01 | 52.22 |
| Ref date as of 12/31/2024 | Total Precip " | 0.25 | 1.47 | 2.24 | 2.52 | 0.57 | 0.32 | 10.68 | 0.97 | 0.54 | 0.1 | 1.26 | 0 | 20.92 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 2.02 | 3.07 | 4.01 | 5.97 | 7.52 | 9.08 | 9.2 | 8.39 | 6.64 | 4.94 | 2.37 | 2.7 | 65.91 |
| Total Growing Degee Days from March 1 | 0 | 0 | 100 | 219 | 323 | 606 | 663 | 656 | 504 | 328 | 47 | 48 | 3494 | |
| Gross Pond Evap | Inch | 1.7 | 2.58 | 3.37 | 5.01 | 6.32 | 7.63 | 7.73 | 7.05 | 5.58 | 4.15 | 1.99 | 2.27 | 55.38 |
| Net Pond Evap | Inch | 1.52 | 1.55 | 1.8 | 3.25 | 5.92 | 7.4 | 0.25 | 6.37 | 5.2 | 4.08 | 1.11 | 2.27 | 40.72 |
| Gilcrest | Avg. Temp ° F | 24.83 | 35.19 | 41.16 | 51.02 | 58.55 | 73.16 | 74.15 | 72.99 | 67 | 54.9 | 36.2 | 34.04 | 51.93 |
| Ref date as of 12/31/2024 | Total Precip " | 0.15 | 1.45 | 1.92 | 1.39 | 0.68 | 1.75 | 0.32 | 0.92 | 0.84 | 0.33 | 1.31 | 0 | 11.06 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.92 | 2.77 | 4.15 | 6.64 | 8.19 | 10.2 | 9.72 | 8.39 | 6.9 | 4.94 | 2.39 | 2.58 | 68.79 |
| Total Growing Degee Days from March 1 | 0 | 0 | 130 | 258 | 374 | 628 | 653 | 661 | 515 | 369 | 61 | 58 | 3707 | |
| Gross Pond Evap | Inch | 1.61 | 2.33 | 3.49 | 5.58 | 6.88 | 8.57 | 8.16 | 7.05 | 5.8 | 4.15 | 2.01 | 2.17 | 57.8 |
| Net Pond Evap | Inch | 1.51 | 1.31 | 2.14 | 4.6 | 6.4 | 7.34 | 7.94 | 6.4 | 5.21 | 3.92 | 1.09 | 2.17 | 50.03 |
| Longmont South | Avg. Temp ° F | 27.01 | 36.88 | 40.42 | 49.82 | 56.15 | 71.09 | 71.87 | 71.12 | 65.33 | 53.66 | 36.39 | 37.55 | 51.44 |
| Ref date as of 12/31/2024 | Total Precip " | 0.16 | 1.78 | 2.14 | 3.04 | 0.48 | 0.54 | 0.44 | 0.45 | 1.08 | 0.14 | 1.6 | 0.07 | 11.92 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 2.02 | 3.4 | 4.26 | 6.36 | 7.58 | 9.46 | 9.05 | 8.01 | 6.33 | 4.43 | 2.37 | 2.82 | 66.09 |
| Total Growing Degee Days from March 1 | 0 | 0 | 106 | 222 | 312 | 578 | 603 | 617 | 487 | 325 | 61 | 65 | 3376 | |
| Gross Pond Evap | Inch | 1.7 | 2.86 | 3.58 | 5.34 | 6.37 | 7.95 | 7.6 | 6.73 | 5.32 | 3.72 | 1.99 | 2.37 | 55.53 |
| Net Pond Evap | Inch | 1.58 | 1.61 | 2.08 | 3.21 | 6.03 | 7.57 | 7.29 | 6.41 | 4.56 | 3.62 | 0.87 | 2.32 | 47.15 |
| Fort Collins NW | Avg. Temp ° F | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Ref date as of 5/2/2010 | Total Precip " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Site Type: Turf | Total Alfalfa ETr " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Total Growing Degee Days from March 1 | 0 | 0 | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 | |
| Gross Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Net Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Fort Collins Central | Avg. Temp ° F | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Ref date as of 122823/0/2023 | Total Precip " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Total Growing Degee Days from March 1 | 0 | 0 | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 | |
| Gross Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Net Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Windsor | Avg. Temp ° F | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Ref date as of 5/2/2010 | Total Precip " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Site Type: Turf | Total Alfalfa ETr " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Total Growing Degee Days from March 1 | 0 | 0 | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 | |
| Gross Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Net Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Greeley West | Avg. Temp ° F | 24.63 | 34.52 | 40.04 | 49.63 | 57.27 | 71.68 | 73.38 | 72.22 | 66.19 | 53.54 | 33.35 | 32.2 | 50.72 |
| Ref date as of 12/31/2024 | Total Precip " | 0.3 | 2.01 | 1.47 | 1.56 | 1.01 | 1.32 | 0.52 | 1.49 | 1.23 | 9.24 | 1.36 | 0 | 21.51 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.31 | 2.25 | 3.54 | 5.81 | 7.3 | 8.2 | 7.96 | 6.84 | 5.48 | 3.5 | 1.74 | 1.61 | 55.54 |
| Total Growing Degee Days from March 1 | 0 | 0 | 102 | 232 | 337 | 604 | 650 | 650 | 502 | 320 | 29 | 22 | 3448 | |
| Gross Pond Evap | Inch | 1.1 | 1.89 | 2.97 | 4.88 | 6.13 | 6.89 | 6.69 | 5.75 | 4.6 | 2.94 | 1.46 | 1.35 | 46.65 |
| Net Pond Evap | Inch | 0.89 | 0.48 | 1.94 | 3.79 | 5.43 | 5.96 | 6.32 | 4.7 | 3.74 | 0 | 0.51 | 1.35 | 35.11 |
| Loveland | Avg. Temp ° F | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Ref date as of 122823/0/2023 | Total Precip " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Total Growing Degee Days from March 1 | 0 | 0 | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 | |
| Gross Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Net Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Berthoud | Avg. Temp ° F | 27.08 | 36.88 | 40.61 | 49.88 | 57.36 | 72.1 | 74.13 | 72.71 | 67.62 | 55.81 | 38.77 | 38.59 | 52.63 |
| Ref date as of 12/31/2024 | Total Precip " | 0.2 | 1.08 | 2.33 | 5.85 | 0.26 | 3.3 | 0.17 | 0 | 0 | 0 | 0 | 0 | 13.19 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.63 | 2.73 | 3.58 | 5.57 | 7.25 | 8.54 | 8.68 | 7.33 | 5.98 | 3.97 | 2.21 | 2.34 | 59.81 |
| Total Growing Degee Days from March 1 | 0 | 0 | 93 | 218 | 314 | 626 | 680 | 674 | 526 | 325 | 56 | 62 | 3574 | |
| Gross Pond Evap | Inch | 1.37 | 2.29 | 3.01 | 4.68 | 6.09 | 7.17 | 7.29 | 6.16 | 5.02 | 3.33 | 1.86 | 1.97 | 50.24 |
| Net Pond Evap | Inch | 1.23 | 1.54 | 1.38 | 0.58 | 5.91 | 4.86 | 7.17 | 6.16 | 5.02 | 3.33 | 1.86 | 1.97 | 41.01 |
| Longmont West | Avg. Temp ° F | 26.95 | 37.31 | 40.79 | 50.54 | 57.22 | 72 | 73.58 | 72.58 | 66.31 | 54.08 | 37.21 | 37.47 | 52.17 |
| Ref date as of 12/31/2024 | Total Precip " | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.46 | 2.63 | 3.45 | 5.47 | 6.68 | 7.74 | 7.73 | 6.53 | 5.57 | 4.65 | 1.79 | 1.92 | 55.62 |
| Total Growing Degee Days from March 1 | 0 | 0 | 100 | 225 | 315 | 608 | 654 | 660 | 507 | 349 | 60 | 64 | 3542 | |
| Gross Pond Evap | Inch | 1.23 | 2.21 | 2.9 | 4.59 | 5.61 | 6.5 | 6.49 | 5.49 | 4.68 | 3.91 | 1.5 | 1.61 | 46.72 |
| Net Pond Evap | Inch | 1.23 | 2.21 | 2.9 | 4.59 | 5.61 | 6.5 | 6.49 | 5.49 | 4.68 | 3.91 | 1.5 | 1.61 | 46.72 |
| Fort Lupton | Avg. Temp ° F | 27.45 | 37.24 | 41.35 | 50.86 | 57.73 | 72.59 | 74.27 | 73.41 | 68.3 | 56.38 | 37.61 | 38.03 | 52.94 |
| Ref date as of 12/31/2024 | Total Precip " | 0.16 | 1.57 | 1.4 | 2.53 | 0.1 | 0.3 | 0.55 | 0.97 | 1.2 | 0.17 | 1.68 | 0.08 | 10.71 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 2.36 | 3.26 | 4.38 | 6.75 | 8.46 | 10.26 | 10.14 | 9.07 | 7.55 | 5.59 | 2.65 | 3.23 | 73.7 |
| Total Growing Degee Days from March 1 | 0 | 0 | 117 | 238 | 344 | 626 | 675 | 689 | 543 | 362 | 62 | 92 | 3748 | |
| Gross Pond Evap | Inch | 1.98 | 2.74 | 3.68 | 5.67 | 7.11 | 8.62 | 8.52 | 7.62 | 6.34 | 4.7 | 2.23 | 2.71 | 61.92 |
| Net Pond Evap | Inch | 1.87 | 1.64 | 2.7 | 3.9 | 7.04 | 8.41 | 8.13 | 6.94 | 5.5 | 4.58 | 1.05 | 2.66 | 54.42 |
| Boulder NW | Avg. Temp ° F | 28.75 | 37.17 | 40.34 | 49.76 | 56.37 | 71.48 | 73.85 | 72.05 | 66.78 | 56.09 | 38.03 | 39.24 | 52.49 |
| Ref date as of 12/31/2024 | Total Precip " | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.7 | 2.88 | 3.63 | 5.66 | 6.78 | 6.81 | 8.1 | 6.68 | 5.5 | 3.86 | 2.01 | 2.69 | 56.3 |
| Total Growing Degee Days from March 1 | 0 | 0 | 96 | 222 | 314 | 596 | 651 | 649 | 504 | 322 | 74 | 71 | 3499 | |
| Gross Pond Evap | Inch | 1.43 | 2.42 | 3.05 | 4.75 | 5.7 | 5.72 | 6.8 | 5.61 | 4.62 | 3.24 | 1.69 | 2.26 | 47.29 |
| Net Pond Evap | Inch | 1.43 | 2.42 | 3.05 | 4.75 | 5.7 | 5.72 | 6.8 | 5.61 | 4.62 | 3.24 | 1.69 | 2.26 | 47.29 |
| Boulder East | Avg. Temp ° F | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Ref date as of 5/2/2010 | Total Precip " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Site Type: Turf | Total Alfalfa ETr " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Total Growing Degee Days from March 1 | 0 | 0 | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 | |
| Gross Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Net Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Boulder Flatiron | Avg. Temp ° F | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Ref date as of 5/2/2010 | Total Precip " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Site Type: Turf | Total Alfalfa ETr " | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Total Growing Degee Days from March 1 | 0 | 0 | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 | |
| Gross Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Net Pond Evap | Inch | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | 0 |
| Boulder SW | Avg. Temp ° F | 30.47 | 38.81 | 41.2 | 50.23 | 56.65 | 71.57 | 74.27 | 73.04 | 68.44 | 57.85 | 40.22 | 41.63 | 53.7 |
| Ref date as of 12/31/2024 | Total Precip " | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 2.06 | 3.42 | 3.85 | 6.04 | 7.38 | 8.68 | 8.76 | 7.56 | 5.97 | 4.23 | 2.4 | 3.01 | 63.36 |
| Total Growing Degee Days from March 1 | 0 | 0 | 80 | 206 | 292 | 571 | 676 | 685 | 548 | 331 | 66 | 65 | 3520 | |
| Gross Pond Evap | Inch | 1.73 | 2.87 | 3.23 | 5.07 | 6.2 | 7.29 | 7.36 | 6.35 | 5.01 | 3.55 | 2.02 | 2.53 | 53.21 |
| Net Pond Evap | Inch | 1.73 | 2.87 | 3.23 | 5.07 | 6.2 | 7.29 | 7.36 | 6.35 | 5.01 | 3.55 | 2.02 | 2.53 | 53.21 |
| Greeley04 | Avg. Temp ° F | 23.78 | 33.81 | 40.32 | 49.37 | 57.33 | 71.5 | 72.18 | 71.05 | 64.76 | 52.76 | 35.48 | 33.26 | 50.47 |
| Ref date as of 12/31/2024 | Total Precip " | 0.05 | 0.74 | 0.74 | 1.05 | 2.72 | 0.57 | 0.4 | 0.86 | 1.5 | 0.17 | 1.35 | 0 | 10.15 |
| Site Type: Fully irrigated | Total Alfalfa ETr " | 1.84 | 2.73 | 4.78 | 7.28 | 9.2 | 10.39 | 9.56 | 7.93 | 6.84 | 4.9 | 2.39 | 2.33 | 70.17 |
| Total Growing Degee Days from March 1 | 0 | 0 | 128 | 241 | 347 | 578 | 618 | 599 | 499 | 330 | 59 | 49 | 3448 | |
| Gross Pond Evap | Inch | 1.55 | 2.29 | 4.02 | 6.12 | 7.73 | 8.73 | 8.03 | 6.66 | 5.75 | 4.12 | 2.01 | 1.96 | 58.97 |
| Net Pond Evap | Inch | 1.51 | 1.78 | 3.5 | 5.38 | 5.82 | 8.33 | 7.75 | 6.06 | 4.7 | 4 | 1.06 | 1.96 | 51.85 |