| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.71 | -0.01 |
| Feb | 0.80 | 0.75 | 0.05 |
| Mar | 1.52 | 1.47 | 0.05 |
| Apr | 2.62 | 2.62 | 0.00 |
| May | 3.84 | 3.83 | 0.01 |
| Jun | 4.08 | 4.10 | -0.02 |
| Jul | 4.00 | 3.75 | 0.25 |
| Aug | 3.94 | 3.90 | 0.04 |
| Sep | 2.97 | 3.03 | -0.06 |
| Oct | 2.64 | 2.65 | -0.01 |
| Nov | 1.40 | 1.38 | 0.02 |
| Dec | 0.92 | 0.93 | -0.01 |
29.43 | 29.12 | 0.31 |