| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.55 | 0.04 |
| Feb | 3.00 | 2.96 | 0.04 |
| Mar | 4.04 | 3.96 | 0.08 |
| Apr | 3.63 | 3.63 | 0.00 |
| May | 3.80 | 3.63 | 0.17 |
| Jun | 4.50 | 4.63 | -0.13 |
| Jul | 4.91 | 4.89 | 0.02 |
| Aug | 4.76 | 4.76 | 0.00 |
| Sep | 4.99 | 5.28 | -0.29 |
| Oct | 3.53 | 3.65 | -0.12 |
| Nov | 3.43 | 3.36 | 0.07 |
| Dec | 3.50 | 3.46 | 0.04 |
47.68 | 47.76 | -0.08 |