| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.61 | -0.14 |
| Feb | 2.87 | 2.82 | 0.05 |
| Mar | 4.14 | 4.38 | -0.24 |
| Apr | 3.56 | 3.48 | 0.08 |
| May | 3.62 | 3.68 | -0.06 |
| Jun | 4.19 | 4.14 | 0.05 |
| Jul | 4.97 | 4.99 | -0.02 |
| Aug | 4.58 | 4.92 | -0.34 |
| Sep | 3.87 | 3.98 | -0.11 |
| Oct | 4.00 | 4.04 | -0.04 |
| Nov | 3.26 | 3.25 | 0.01 |
| Dec | 4.23 | 4.35 | -0.12 |
46.76 | 47.64 | -0.88 |