| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.76 | 2.99 | -0.23 |
| Feb | 2.16 | 2.27 | -0.11 |
| Mar | 2.83 | 2.81 | 0.02 |
| Apr | 3.52 | 3.55 | -0.03 |
| May | 3.57 | 3.57 | 0.00 |
| Jun | 3.78 | 3.59 | 0.19 |
| Jul | 3.85 | 3.80 | 0.05 |
| Aug | 3.60 | 3.74 | -0.14 |
| Sep | 3.95 | 3.85 | 0.10 |
| Oct | 3.72 | 4.00 | -0.28 |
| Nov | 3.40 | 3.40 | 0.00 |
| Dec | 2.97 | 3.25 | -0.28 |
40.11 | 40.82 | -0.71 |