| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.87 | 0.81 | 0.06 |
| Feb | 0.56 | 0.63 | -0.07 |
| Mar | 0.66 | 0.53 | 0.13 |
| Apr | 0.63 | 0.65 | -0.02 |
| May | 1.14 | 1.41 | -0.27 |
| Jun | 2.34 | 3.11 | -0.77 |
| Jul | 3.20 | 3.84 | -0.64 |
| Aug | 2.93 | 3.84 | -0.91 |
| Sep | 2.58 | 2.67 | -0.09 |
| Oct | 1.44 | 1.50 | -0.06 |
| Nov | 0.67 | 0.84 | -0.17 |
| Dec | 0.84 | 0.67 | 0.17 |
17.86 | 20.50 | -2.64 |