| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.39 | 0.40 | -0.01 |
| Feb | 0.59 | 0.59 | 0.00 |
| Mar | 1.21 | 1.14 | 0.07 |
| Apr | 1.97 | 1.95 | 0.02 |
| May | 2.98 | 3.00 | -0.02 |
| Jun | 2.89 | 2.99 | -0.10 |
| Jul | 2.16 | 2.32 | -0.16 |
| Aug | 1.43 | 1.58 | -0.15 |
| Sep | 1.33 | 1.39 | -0.06 |
| Oct | 1.41 | 1.38 | 0.03 |
| Nov | 0.52 | 0.58 | -0.06 |
| Dec | 0.50 | 0.48 | 0.02 |
17.38 | 17.80 | -0.42 |