| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.49 | -0.06 |
| Feb | 2.75 | 2.74 | 0.01 |
| Mar | 3.99 | 4.00 | -0.01 |
| Apr | 3.45 | 3.50 | -0.05 |
| May | 4.07 | 4.01 | 0.06 |
| Jun | 4.34 | 4.35 | -0.01 |
| Jul | 4.76 | 4.74 | 0.02 |
| Aug | 4.47 | 4.66 | -0.19 |
| Sep | 4.70 | 4.79 | -0.09 |
| Oct | 3.55 | 3.70 | -0.15 |
| Nov | 3.20 | 3.21 | -0.01 |
| Dec | 3.69 | 3.62 | 0.07 |
46.40 | 46.81 | -0.41 |