| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.71 | 0.02 |
| Feb | 0.81 | 0.80 | 0.01 |
| Mar | 1.70 | 1.64 | 0.06 |
| Apr | 3.06 | 2.97 | 0.09 |
| May | 4.27 | 4.19 | 0.08 |
| Jun | 4.77 | 4.87 | -0.10 |
| Jul | 3.75 | 3.76 | -0.01 |
| Aug | 3.98 | 3.64 | 0.34 |
| Sep | 3.20 | 3.12 | 0.08 |
| Oct | 2.41 | 2.39 | 0.02 |
| Nov | 1.52 | 1.29 | 0.23 |
| Dec | 0.86 | 1.00 | -0.14 |
31.06 | 30.38 | 0.68 |