| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.60 | 0.01 |
| Feb | 2.99 | 2.94 | 0.05 |
| Mar | 4.08 | 3.99 | 0.09 |
| Apr | 3.63 | 3.61 | 0.02 |
| May | 3.79 | 3.64 | 0.15 |
| Jun | 4.54 | 4.61 | -0.07 |
| Jul | 4.92 | 4.86 | 0.06 |
| Aug | 4.79 | 4.69 | 0.10 |
| Sep | 5.07 | 5.30 | -0.23 |
| Oct | 3.56 | 3.68 | -0.12 |
| Nov | 3.45 | 3.38 | 0.07 |
| Dec | 3.51 | 3.45 | 0.06 |
47.94 | 47.75 | 0.19 |