| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.58 | 0.50 | 0.08 |
| Feb | 0.74 | 0.63 | 0.11 |
| Mar | 1.51 | 1.48 | 0.03 |
| Apr | 2.42 | 2.17 | 0.25 |
| May | 2.80 | 2.77 | 0.03 |
| Jun | 1.86 | 1.75 | 0.11 |
| Jul | 2.13 | 1.94 | 0.19 |
| Aug | 1.75 | 1.61 | 0.14 |
| Sep | 1.55 | 1.43 | 0.12 |
| Oct | 1.29 | 1.17 | 0.12 |
| Nov | 0.89 | 0.74 | 0.15 |
| Dec | 0.63 | 0.51 | 0.12 |
18.15 | 16.70 | 1.45 |