| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.97 | 3.86 | 0.11 |
| Feb | 3.09 | 3.03 | 0.06 |
| Mar | 3.48 | 3.50 | -0.02 |
| Apr | 3.83 | 3.70 | 0.13 |
| May | 5.01 | 5.24 | -0.23 |
| Jun | 4.75 | 4.64 | 0.11 |
| Jul | 3.35 | 3.29 | 0.06 |
| Aug | 3.94 | 4.29 | -0.35 |
| Sep | 4.02 | 4.14 | -0.12 |
| Oct | 4.86 | 4.82 | 0.04 |
| Nov | 4.40 | 4.30 | 0.10 |
| Dec | 3.91 | 3.90 | 0.01 |
48.61 | 48.71 | -0.10 |