| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.43 | 0.11 |
| Feb | 2.79 | 2.75 | 0.04 |
| Mar | 4.03 | 3.97 | 0.06 |
| Apr | 3.52 | 3.58 | -0.06 |
| May | 4.01 | 3.96 | 0.05 |
| Jun | 4.52 | 4.53 | -0.01 |
| Jul | 5.18 | 4.95 | 0.23 |
| Aug | 4.90 | 4.94 | -0.04 |
| Sep | 5.12 | 5.04 | 0.08 |
| Oct | 3.72 | 3.84 | -0.12 |
| Nov | 3.17 | 3.19 | -0.02 |
| Dec | 3.62 | 3.62 | 0.00 |
48.12 | 47.80 | 0.32 |