| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.76 | -0.02 |
| Feb | 0.79 | 0.80 | -0.01 |
| Mar | 1.53 | 1.47 | 0.06 |
| Apr | 2.76 | 2.86 | -0.10 |
| May | 4.11 | 3.93 | 0.18 |
| Jun | 4.29 | 4.32 | -0.03 |
| Jul | 4.41 | 4.35 | 0.06 |
| Aug | 4.02 | 4.05 | -0.03 |
| Sep | 3.40 | 3.21 | 0.19 |
| Oct | 2.79 | 2.86 | -0.07 |
| Nov | 1.57 | 1.61 | -0.04 |
| Dec | 1.07 | 1.10 | -0.03 |
31.48 | 31.32 | 0.16 |