| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.14 | 3.07 | 0.07 |
| Feb | 3.04 | 2.90 | 0.14 |
| Mar | 3.57 | 3.52 | 0.05 |
| Apr | 3.74 | 3.72 | 0.02 |
| May | 3.79 | 3.54 | 0.25 |
| Jun | 4.19 | 4.27 | -0.08 |
| Jul | 3.99 | 3.58 | 0.41 |
| Aug | 3.95 | 3.72 | 0.23 |
| Sep | 3.79 | 3.67 | 0.12 |
| Oct | 4.81 | 4.75 | 0.06 |
| Nov | 3.76 | 3.49 | 0.27 |
| Dec | 4.10 | 3.90 | 0.20 |
45.87 | 44.13 | 1.74 |