| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.85 | 2.86 | -0.01 |
| Feb | 2.42 | 2.45 | -0.03 |
| Mar | 3.39 | 3.37 | 0.02 |
| Apr | 3.72 | 3.55 | 0.17 |
| May | 4.00 | 3.70 | 0.30 |
| Jun | 4.10 | 4.05 | 0.05 |
| Jul | 4.07 | 3.80 | 0.27 |
| Aug | 3.91 | 3.89 | 0.02 |
| Sep | 4.22 | 4.00 | 0.22 |
| Oct | 3.58 | 3.52 | 0.06 |
| Nov | 3.14 | 3.01 | 0.13 |
| Dec | 3.24 | 3.18 | 0.06 |
42.64 | 41.38 | 1.26 |