| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.36 | 0.02 |
| Feb | 2.74 | 2.80 | -0.06 |
| Mar | 4.04 | 3.95 | 0.09 |
| Apr | 3.81 | 3.73 | 0.08 |
| May | 3.99 | 3.97 | 0.02 |
| Jun | 4.26 | 4.17 | 0.09 |
| Jul | 4.89 | 4.69 | 0.20 |
| Aug | 4.56 | 4.52 | 0.04 |
| Sep | 4.58 | 4.52 | 0.06 |
| Oct | 4.13 | 4.27 | -0.14 |
| Nov | 3.28 | 3.29 | -0.01 |
| Dec | 4.25 | 4.34 | -0.09 |
47.91 | 47.61 | 0.30 |