Precipitation Data for Johnston, IA 50131
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | % of 30yr Avg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30yr Avg (1981-2010) View in Rain Harvest Calculator |
0.98 | 1.19 | 2.21 | 3.71 | 4.46 | 5.3 | 4.78 | 4.04 | 3.15 | 2.54 | 1.94 | 1.31 | 35.61 | - |
| 5yr Avg (2013-2017) View in Rain Harvest Calculator |
0.87 | 1.20 | 1.68 | 4.29 | 5.31 | 5.50 | 4.61 | 4.54 | 4.44 | 2.91 | 1.68 | 1.77 | 38.80 | 109% |
| Recent Years | ||||||||||||||
| 2017 View in Rain Harvest Calculator |
1.90 | 1.24 | 3.02 | 3.62 | 4.99 | 2.86 | 2.18 | 3.20 | 4.47 | 4.63 | 0.39 | 0.30 | 32.80 | 92% |
| 2016 View in Rain Harvest Calculator |
0.82 | 0.91 | 2.14 | 3.31 | 3.42 | 3.05 | 7.44 | 7.23 | 3.97 | 1.14 | 2.34 | 1.12 | 36.89 | 104% |
| 2015 View in Rain Harvest Calculator |
0.83 | 0.86 | 0.62 | 3.01 | 5.12 | 8.33 | 9.36 | 4.01 | 6.80 | 1.42 | 3.26 | 5.37 | 48.99 | 138% |
| 2014 View in Rain Harvest Calculator |
0.26 | 1.76 | 0.66 | 5.61 | 3.04 | 9.13 | 2.90 | 8.02 | 4.52 | 3.82 | 0.60 | 1.34 | 41.66 | 117% |
| 2013 View in Rain Harvest Calculator |
0.56 | 1.24 | 1.98 | 5.89 | 9.96 | 4.14 | 1.16 | 0.26 | 2.42 | 3.56 | 1.79 | 0.72 | 33.68 | 95% |