| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 3.80 | -0.05 |
| Feb | 2.91 | 3.02 | -0.11 |
| Mar | 4.17 | 4.32 | -0.15 |
| Apr | 4.03 | 4.13 | -0.10 |
| May | 4.23 | 4.22 | 0.01 |
| Jun | 4.91 | 5.10 | -0.19 |
| Jul | 4.99 | 4.82 | 0.17 |
| Aug | 4.64 | 4.64 | 0.00 |
| Sep | 4.61 | 4.66 | -0.05 |
| Oct | 4.73 | 4.84 | -0.11 |
| Nov | 3.67 | 3.79 | -0.12 |
| Dec | 4.56 | 4.70 | -0.14 |
51.20 | 52.04 | -0.84 |