| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.82 | 2.91 | -0.09 |
| Feb | 2.36 | 2.28 | 0.08 |
| Mar | 3.24 | 3.20 | 0.04 |
| Apr | 3.85 | 3.83 | 0.02 |
| May | 4.13 | 4.05 | 0.08 |
| Jun | 4.63 | 4.69 | -0.06 |
| Jul | 4.23 | 4.03 | 0.20 |
| Aug | 3.75 | 3.53 | 0.22 |
| Sep | 3.28 | 3.23 | 0.05 |
| Oct | 3.14 | 3.09 | 0.05 |
| Nov | 2.88 | 2.86 | 0.02 |
| Dec | 2.95 | 2.97 | -0.02 |
41.26 | 40.67 | 0.59 |