| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.91 | 0.92 | -0.01 |
| Feb | 0.89 | 0.86 | 0.03 |
| Mar | 1.73 | 1.62 | 0.11 |
| Apr | 2.94 | 2.86 | 0.08 |
| May | 4.22 | 4.16 | 0.06 |
| Jun | 5.25 | 5.07 | 0.18 |
| Jul | 4.18 | 4.32 | -0.14 |
| Aug | 4.46 | 4.69 | -0.23 |
| Sep | 3.43 | 3.51 | -0.08 |
| Oct | 2.79 | 2.68 | 0.11 |
| Nov | 1.71 | 1.58 | 0.13 |
| Dec | 1.19 | 1.18 | 0.01 |
33.70 | 33.45 | 0.25 |