| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.72 | 0.03 |
| Feb | 0.81 | 0.80 | 0.01 |
| Mar | 1.45 | 1.50 | -0.05 |
| Apr | 2.44 | 2.55 | -0.11 |
| May | 3.60 | 3.54 | 0.06 |
| Jun | 4.48 | 4.45 | 0.03 |
| Jul | 4.51 | 4.74 | -0.23 |
| Aug | 3.96 | 3.87 | 0.09 |
| Sep | 3.25 | 3.20 | 0.05 |
| Oct | 2.95 | 2.97 | -0.02 |
| Nov | 1.55 | 1.50 | 0.05 |
| Dec | 1.05 | 1.17 | -0.12 |
30.80 | 31.01 | -0.21 |