| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.96 | 4.05 | -0.09 |
| Feb | 3.50 | 3.51 | -0.01 |
| Mar | 4.80 | 4.85 | -0.05 |
| Apr | 4.43 | 4.58 | -0.15 |
| May | 3.67 | 3.53 | 0.14 |
| Jun | 4.17 | 4.17 | 0.00 |
| Jul | 3.50 | 3.51 | -0.01 |
| Aug | 3.89 | 3.80 | 0.09 |
| Sep | 3.99 | 4.00 | -0.01 |
| Oct | 4.90 | 4.98 | -0.08 |
| Nov | 4.17 | 4.25 | -0.08 |
| Dec | 4.84 | 4.91 | -0.07 |
49.82 | 50.14 | -0.32 |