| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.59 | 0.03 |
| Feb | 3.25 | 3.22 | 0.03 |
| Mar | 4.10 | 4.13 | -0.03 |
| Apr | 4.15 | 4.06 | 0.09 |
| May | 3.61 | 3.58 | 0.03 |
| Jun | 4.35 | 4.21 | 0.14 |
| Jul | 3.99 | 3.98 | 0.01 |
| Aug | 4.32 | 4.29 | 0.03 |
| Sep | 4.15 | 4.13 | 0.02 |
| Oct | 4.80 | 4.79 | 0.01 |
| Nov | 3.83 | 3.70 | 0.13 |
| Dec | 4.31 | 4.42 | -0.11 |
48.48 | 48.10 | 0.38 |