| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.66 | 4.58 | 0.08 |
| Feb | 4.01 | 3.99 | 0.02 |
| Mar | 4.76 | 4.80 | -0.04 |
| Apr | 4.50 | 4.49 | 0.01 |
| May | 4.31 | 4.49 | -0.18 |
| Jun | 4.49 | 4.58 | -0.09 |
| Jul | 4.76 | 4.83 | -0.07 |
| Aug | 4.60 | 4.98 | -0.38 |
| Sep | 4.65 | 4.48 | 0.17 |
| Oct | 4.01 | 3.99 | 0.02 |
| Nov | 4.15 | 4.19 | -0.04 |
| Dec | 4.89 | 5.05 | -0.16 |
53.79 | 54.45 | -0.66 |