| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.56 | 0.57 | -0.01 |
| Feb | 0.82 | 0.78 | 0.04 |
| Mar | 1.34 | 1.32 | 0.02 |
| Apr | 2.12 | 2.04 | 0.08 |
| May | 3.92 | 3.75 | 0.17 |
| Jun | 3.47 | 3.24 | 0.23 |
| Jul | 3.86 | 3.95 | -0.09 |
| Aug | 3.50 | 3.44 | 0.06 |
| Sep | 1.97 | 2.15 | -0.18 |
| Oct | 1.80 | 1.75 | 0.05 |
| Nov | 0.96 | 0.92 | 0.04 |
| Dec | 0.84 | 0.85 | -0.01 |
25.16 | 24.76 | 0.40 |