| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.73 | 0.00 |
| Feb | 0.82 | 0.77 | 0.05 |
| Mar | 1.75 | 1.62 | 0.13 |
| Apr | 3.26 | 3.17 | 0.09 |
| May | 4.50 | 4.34 | 0.16 |
| Jun | 4.86 | 4.85 | 0.01 |
| Jul | 3.82 | 3.93 | -0.11 |
| Aug | 3.91 | 3.69 | 0.22 |
| Sep | 3.22 | 3.16 | 0.06 |
| Oct | 2.43 | 2.37 | 0.06 |
| Nov | 1.47 | 1.32 | 0.15 |
| Dec | 0.96 | 0.95 | 0.01 |
31.73 | 30.90 | 0.83 |