| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.44 | 0.45 | -0.01 |
| Feb | 0.59 | 0.65 | -0.06 |
| Mar | 1.16 | 1.23 | -0.07 |
| Apr | 1.97 | 2.00 | -0.03 |
| May | 3.34 | 3.47 | -0.13 |
| Jun | 2.91 | 2.89 | 0.02 |
| Jul | 3.45 | 3.64 | -0.19 |
| Aug | 3.08 | 3.07 | 0.01 |
| Sep | 1.86 | 1.81 | 0.05 |
| Oct | 1.72 | 1.68 | 0.04 |
| Nov | 0.76 | 0.75 | 0.01 |
| Dec | 0.60 | 0.69 | -0.09 |
21.88 | 22.33 | -0.45 |