| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.58 | 0.52 | 0.06 |
| Feb | 0.71 | 0.66 | 0.05 |
| Mar | 1.45 | 1.43 | 0.02 |
| Apr | 2.35 | 2.23 | 0.12 |
| May | 2.71 | 2.81 | -0.10 |
| Jun | 1.80 | 1.83 | -0.03 |
| Jul | 1.96 | 1.97 | -0.01 |
| Aug | 1.67 | 1.64 | 0.03 |
| Sep | 1.50 | 1.52 | -0.02 |
| Oct | 1.27 | 1.17 | 0.10 |
| Nov | 0.85 | 0.76 | 0.09 |
| Dec | 0.65 | 0.56 | 0.09 |
17.50 | 17.10 | 0.40 |