| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.30 | 3.50 | -0.20 |
| Feb | 3.16 | 3.44 | -0.28 |
| Mar | 4.12 | 4.59 | -0.47 |
| Apr | 3.98 | 4.09 | -0.11 |
| May | 3.64 | 3.70 | -0.06 |
| Jun | 4.10 | 4.23 | -0.13 |
| Jul | 3.56 | 3.50 | 0.06 |
| Aug | 3.43 | 3.41 | 0.02 |
| Sep | 3.73 | 3.76 | -0.03 |
| Oct | 4.61 | 4.87 | -0.26 |
| Nov | 3.71 | 3.75 | -0.04 |
| Dec | 4.27 | 4.57 | -0.30 |
45.61 | 47.41 | -1.80 |