| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.47 | 4.44 | 0.03 |
| Feb | 4.41 | 4.35 | 0.06 |
| Mar | 4.64 | 4.57 | 0.07 |
| Apr | 3.60 | 3.46 | 0.14 |
| May | 3.46 | 3.15 | 0.31 |
| Jun | 4.73 | 4.59 | 0.14 |
| Jul | 4.08 | 4.16 | -0.08 |
| Aug | 4.72 | 4.47 | 0.25 |
| Sep | 3.82 | 3.88 | -0.06 |
| Oct | 3.17 | 3.23 | -0.06 |
| Nov | 3.66 | 3.62 | 0.04 |
| Dec | 4.69 | 4.64 | 0.05 |
49.45 | 48.56 | 0.89 |