| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.06 | 1.03 | 0.03 |
| Feb | 1.14 | 1.08 | 0.06 |
| Mar | 1.87 | 1.83 | 0.04 |
| Apr | 3.14 | 3.02 | 0.12 |
| May | 4.15 | 4.01 | 0.14 |
| Jun | 4.87 | 4.69 | 0.18 |
| Jul | 3.70 | 3.64 | 0.06 |
| Aug | 4.14 | 3.99 | 0.15 |
| Sep | 3.60 | 3.59 | 0.01 |
| Oct | 2.72 | 2.54 | 0.18 |
| Nov | 1.86 | 1.75 | 0.11 |
| Dec | 1.29 | 1.33 | -0.04 |
33.54 | 32.50 | 1.04 |