| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.66 | 1.63 | 0.03 |
| Feb | 1.80 | 1.85 | -0.05 |
| Mar | 2.44 | 2.31 | 0.13 |
| Apr | 3.87 | 3.76 | 0.11 |
| May | 5.10 | 5.11 | -0.01 |
| Jun | 4.76 | 4.65 | 0.11 |
| Jul | 3.94 | 3.94 | 0.00 |
| Aug | 3.64 | 3.33 | 0.31 |
| Sep | 3.55 | 3.59 | -0.04 |
| Oct | 3.09 | 2.99 | 0.10 |
| Nov | 2.47 | 2.56 | -0.09 |
| Dec | 1.96 | 1.92 | 0.04 |
38.28 | 37.64 | 0.64 |