| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.29 | 0.06 |
| Feb | 2.77 | 2.76 | 0.01 |
| Mar | 3.95 | 3.87 | 0.08 |
| Apr | 3.39 | 3.33 | 0.06 |
| May | 4.15 | 4.11 | 0.04 |
| Jun | 4.27 | 4.20 | 0.07 |
| Jul | 4.40 | 4.39 | 0.01 |
| Aug | 4.48 | 4.56 | -0.08 |
| Sep | 4.54 | 4.35 | 0.19 |
| Oct | 3.65 | 3.61 | 0.04 |
| Nov | 3.26 | 3.24 | 0.02 |
| Dec | 3.62 | 3.70 | -0.08 |
45.83 | 45.41 | 0.42 |