| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.20 | 2.15 | 0.05 |
| Feb | 1.79 | 1.84 | -0.05 |
| Mar | 2.36 | 2.40 | -0.04 |
| Apr | 3.75 | 3.64 | 0.11 |
| May | 4.48 | 4.46 | 0.02 |
| Jun | 4.73 | 4.70 | 0.03 |
| Jul | 4.17 | 4.32 | -0.15 |
| Aug | 3.86 | 3.67 | 0.19 |
| Sep | 3.13 | 3.20 | -0.07 |
| Oct | 3.24 | 3.23 | 0.01 |
| Nov | 2.66 | 2.61 | 0.05 |
| Dec | 2.10 | 2.15 | -0.05 |
38.47 | 38.37 | 0.10 |