| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.55 | 4.46 | 0.09 |
| Feb | 4.48 | 4.50 | -0.02 |
| Mar | 4.66 | 4.62 | 0.04 |
| Apr | 3.80 | 3.94 | -0.14 |
| May | 3.61 | 3.55 | 0.06 |
| Jun | 4.67 | 4.76 | -0.09 |
| Jul | 4.03 | 4.11 | -0.08 |
| Aug | 4.64 | 4.50 | 0.14 |
| Sep | 3.80 | 4.01 | -0.21 |
| Oct | 3.32 | 3.36 | -0.04 |
| Nov | 3.83 | 3.91 | -0.08 |
| Dec | 4.57 | 4.73 | -0.16 |
49.96 | 50.45 | -0.49 |