| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.45 | 4.48 | -0.03 |
| Feb | 4.40 | 4.39 | 0.01 |
| Mar | 4.64 | 4.58 | 0.06 |
| Apr | 3.59 | 3.58 | 0.01 |
| May | 3.44 | 3.33 | 0.11 |
| Jun | 4.70 | 4.58 | 0.12 |
| Jul | 4.08 | 4.16 | -0.08 |
| Aug | 4.63 | 4.48 | 0.15 |
| Sep | 3.81 | 3.89 | -0.08 |
| Oct | 3.19 | 3.30 | -0.11 |
| Nov | 3.66 | 3.73 | -0.07 |
| Dec | 4.67 | 4.69 | -0.02 |
49.26 | 49.19 | 0.07 |