| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.73 | 2.80 | -0.07 |
| Feb | 2.99 | 2.91 | 0.08 |
| Mar | 3.72 | 3.62 | 0.10 |
| Apr | 3.69 | 3.63 | 0.06 |
| May | 4.54 | 4.44 | 0.10 |
| Jun | 4.03 | 3.96 | 0.07 |
| Jul | 2.05 | 2.08 | -0.03 |
| Aug | 2.39 | 2.47 | -0.08 |
| Sep | 3.07 | 2.89 | 0.18 |
| Oct | 4.78 | 4.70 | 0.08 |
| Nov | 3.06 | 2.90 | 0.16 |
| Dec | 3.40 | 3.40 | 0.00 |
40.45 | 39.80 | 0.65 |