| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.70 | -0.05 |
| Feb | 0.80 | 0.79 | 0.01 |
| Mar | 1.61 | 1.66 | -0.05 |
| Apr | 2.98 | 2.96 | 0.02 |
| May | 4.16 | 3.93 | 0.23 |
| Jun | 4.44 | 4.01 | 0.43 |
| Jul | 3.41 | 3.36 | 0.05 |
| Aug | 3.41 | 3.33 | 0.08 |
| Sep | 3.13 | 3.03 | 0.10 |
| Oct | 2.30 | 2.30 | 0.00 |
| Nov | 1.35 | 1.30 | 0.05 |
| Dec | 0.93 | 0.94 | -0.01 |
29.17 | 28.31 | 0.86 |