| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.98 | 4.91 | 0.07 |
| Feb | 4.32 | 4.27 | 0.05 |
| Mar | 4.98 | 4.75 | 0.23 |
| Apr | 4.72 | 4.80 | -0.08 |
| May | 4.55 | 4.54 | 0.01 |
| Jun | 4.95 | 5.08 | -0.13 |
| Jul | 5.13 | 4.96 | 0.17 |
| Aug | 5.58 | 5.65 | -0.07 |
| Sep | 4.69 | 4.35 | 0.34 |
| Oct | 4.08 | 3.98 | 0.10 |
| Nov | 4.22 | 4.23 | -0.01 |
| Dec | 5.50 | 5.44 | 0.06 |
57.70 | 56.96 | 0.74 |