| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.62 | 0.61 | 0.01 |
| Feb | 0.66 | 0.62 | 0.04 |
| Mar | 1.07 | 1.02 | 0.05 |
| Apr | 2.19 | 2.22 | -0.03 |
| May | 3.16 | 3.12 | 0.04 |
| Jun | 3.97 | 3.93 | 0.04 |
| Jul | 3.55 | 3.47 | 0.08 |
| Aug | 2.81 | 2.77 | 0.04 |
| Sep | 2.55 | 2.53 | 0.02 |
| Oct | 2.20 | 2.17 | 0.03 |
| Nov | 0.80 | 0.79 | 0.01 |
| Dec | 0.70 | 0.67 | 0.03 |
24.28 | 23.92 | 0.36 |