| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.47 | 4.44 | 0.03 |
| Feb | 4.40 | 4.38 | 0.02 |
| Mar | 4.63 | 4.60 | 0.03 |
| Apr | 3.68 | 3.80 | -0.12 |
| May | 3.49 | 3.48 | 0.01 |
| Jun | 4.67 | 4.51 | 0.16 |
| Jul | 4.05 | 4.02 | 0.03 |
| Aug | 4.62 | 4.49 | 0.13 |
| Sep | 3.79 | 3.95 | -0.16 |
| Oct | 3.27 | 3.41 | -0.14 |
| Nov | 3.73 | 3.86 | -0.13 |
| Dec | 4.60 | 4.73 | -0.13 |
49.40 | 49.67 | -0.27 |