| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.09 | 3.07 | 0.02 |
| Feb | 2.69 | 2.82 | -0.13 |
| Mar | 4.01 | 3.99 | 0.02 |
| Apr | 3.27 | 3.20 | 0.07 |
| May | 3.91 | 4.08 | -0.17 |
| Jun | 4.23 | 4.28 | -0.05 |
| Jul | 4.47 | 4.44 | 0.03 |
| Aug | 4.37 | 4.49 | -0.12 |
| Sep | 4.59 | 4.50 | 0.09 |
| Oct | 3.84 | 4.11 | -0.27 |
| Nov | 3.16 | 3.19 | -0.03 |
| Dec | 3.67 | 3.76 | -0.09 |
45.30 | 45.93 | -0.63 |