| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.92 | 4.00 | -0.08 |
| Feb | 3.44 | 3.45 | -0.01 |
| Mar | 4.57 | 4.68 | -0.11 |
| Apr | 4.36 | 4.51 | -0.15 |
| May | 3.59 | 3.51 | 0.08 |
| Jun | 4.20 | 4.29 | -0.09 |
| Jul | 3.58 | 3.58 | 0.00 |
| Aug | 3.89 | 3.93 | -0.04 |
| Sep | 3.96 | 4.04 | -0.08 |
| Oct | 4.96 | 4.92 | 0.04 |
| Nov | 3.99 | 4.03 | -0.04 |
| Dec | 4.77 | 4.97 | -0.20 |
49.23 | 49.91 | -0.68 |