| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.15 | 4.16 | -0.01 |
| Feb | 3.66 | 3.68 | -0.02 |
| Mar | 4.56 | 4.63 | -0.07 |
| Apr | 4.09 | 4.11 | -0.02 |
| May | 3.86 | 3.86 | 0.00 |
| Jun | 4.21 | 4.07 | 0.14 |
| Jul | 4.04 | 4.06 | -0.02 |
| Aug | 4.45 | 4.47 | -0.02 |
| Sep | 3.84 | 3.88 | -0.04 |
| Oct | 3.48 | 3.62 | -0.14 |
| Nov | 3.69 | 3.82 | -0.13 |
| Dec | 4.37 | 4.62 | -0.25 |
48.40 | 48.98 | -0.58 |