| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.71 | 0.01 |
| Feb | 0.88 | 0.91 | -0.03 |
| Mar | 1.73 | 1.64 | 0.09 |
| Apr | 2.85 | 3.01 | -0.16 |
| May | 4.73 | 4.80 | -0.07 |
| Jun | 4.77 | 4.81 | -0.04 |
| Jul | 3.36 | 3.30 | 0.06 |
| Aug | 3.88 | 3.90 | -0.02 |
| Sep | 3.01 | 2.87 | 0.14 |
| Oct | 2.29 | 2.36 | -0.07 |
| Nov | 1.34 | 1.38 | -0.04 |
| Dec | 1.23 | 1.18 | 0.05 |
30.79 | 30.87 | -0.08 |