| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.60 | 2.86 | -0.26 |
| Feb | 2.13 | 2.33 | -0.20 |
| Mar | 2.76 | 2.87 | -0.11 |
| Apr | 3.52 | 3.69 | -0.17 |
| May | 3.76 | 3.72 | 0.04 |
| Jun | 3.88 | 3.89 | -0.01 |
| Jul | 3.75 | 3.74 | 0.01 |
| Aug | 3.56 | 3.67 | -0.11 |
| Sep | 3.71 | 3.81 | -0.10 |
| Oct | 3.43 | 3.47 | -0.04 |
| Nov | 3.10 | 3.07 | 0.03 |
| Dec | 2.73 | 2.92 | -0.19 |
38.93 | 40.04 | -1.11 |