| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.52 | 4.44 | 0.08 |
| Feb | 4.86 | 4.68 | 0.18 |
| Mar | 5.19 | 5.03 | 0.16 |
| Apr | 4.89 | 4.74 | 0.15 |
| May | 4.89 | 4.90 | -0.01 |
| Jun | 4.67 | 4.73 | -0.06 |
| Jul | 4.56 | 4.59 | -0.03 |
| Aug | 3.69 | 3.51 | 0.18 |
| Sep | 3.85 | 3.79 | 0.06 |
| Oct | 3.58 | 3.42 | 0.16 |
| Nov | 3.69 | 3.81 | -0.12 |
| Dec | 5.24 | 5.34 | -0.10 |
53.63 | 52.98 | 0.65 |