| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.93 | 3.86 | 0.07 |
| Feb | 2.94 | 3.00 | -0.06 |
| Mar | 3.55 | 3.56 | -0.01 |
| Apr | 4.02 | 3.96 | 0.06 |
| May | 5.06 | 5.06 | 0.00 |
| Jun | 5.29 | 5.13 | 0.16 |
| Jul | 4.05 | 4.03 | 0.02 |
| Aug | 4.84 | 4.95 | -0.11 |
| Sep | 4.73 | 4.93 | -0.20 |
| Oct | 5.01 | 4.78 | 0.23 |
| Nov | 4.26 | 4.24 | 0.02 |
| Dec | 3.98 | 3.99 | -0.01 |
51.66 | 51.49 | 0.17 |