| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.61 | -0.02 |
| Feb | 2.76 | 2.89 | -0.13 |
| Mar | 3.99 | 4.10 | -0.11 |
| Apr | 3.89 | 3.93 | -0.04 |
| May | 4.10 | 4.11 | -0.01 |
| Jun | 4.54 | 4.58 | -0.04 |
| Jul | 4.86 | 4.91 | -0.05 |
| Aug | 4.75 | 4.53 | 0.22 |
| Sep | 4.51 | 4.50 | 0.01 |
| Oct | 4.38 | 4.44 | -0.06 |
| Nov | 3.42 | 3.43 | -0.01 |
| Dec | 4.32 | 4.41 | -0.09 |
49.11 | 49.44 | -0.33 |