| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.83 | 4.71 | 0.12 |
| Feb | 4.75 | 4.63 | 0.12 |
| Mar | 4.93 | 4.78 | 0.15 |
| Apr | 4.03 | 4.06 | -0.03 |
| May | 4.09 | 3.93 | 0.16 |
| Jun | 4.50 | 4.81 | -0.31 |
| Jul | 4.29 | 4.42 | -0.13 |
| Aug | 4.80 | 4.57 | 0.23 |
| Sep | 4.13 | 4.16 | -0.03 |
| Oct | 3.66 | 3.65 | 0.01 |
| Nov | 4.18 | 4.11 | 0.07 |
| Dec | 4.70 | 4.69 | 0.01 |
52.89 | 52.52 | 0.37 |