| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 3.78 | -0.13 |
| Feb | 4.41 | 4.47 | -0.06 |
| Mar | 4.83 | 4.68 | 0.15 |
| Apr | 4.93 | 5.16 | -0.23 |
| May | 5.09 | 5.41 | -0.32 |
| Jun | 4.37 | 4.53 | -0.16 |
| Jul | 4.40 | 4.62 | -0.22 |
| Aug | 3.71 | 3.79 | -0.08 |
| Sep | 3.95 | 3.98 | -0.03 |
| Oct | 3.93 | 4.07 | -0.14 |
| Nov | 3.86 | 3.85 | 0.01 |
| Dec | 4.67 | 4.74 | -0.07 |
51.80 | 53.08 | -1.28 |