| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.05 | 3.01 | 0.04 |
| Feb | 2.63 | 2.59 | 0.04 |
| Mar | 3.52 | 3.47 | 0.05 |
| Apr | 4.11 | 4.06 | 0.05 |
| May | 4.41 | 4.34 | 0.07 |
| Jun | 4.43 | 4.43 | 0.00 |
| Jul | 4.27 | 4.26 | 0.01 |
| Aug | 3.54 | 3.41 | 0.13 |
| Sep | 3.03 | 3.03 | 0.00 |
| Oct | 2.98 | 2.95 | 0.03 |
| Nov | 3.01 | 2.91 | 0.10 |
| Dec | 3.11 | 3.02 | 0.09 |
42.09 | 41.48 | 0.61 |