| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.79 | 3.74 | 0.05 |
| Feb | 3.33 | 3.23 | 0.10 |
| Mar | 4.45 | 4.41 | 0.04 |
| Apr | 4.31 | 4.30 | 0.01 |
| May | 3.65 | 3.46 | 0.19 |
| Jun | 4.26 | 4.20 | 0.06 |
| Jul | 3.75 | 3.65 | 0.10 |
| Aug | 3.95 | 4.02 | -0.07 |
| Sep | 3.90 | 3.88 | 0.02 |
| Oct | 4.95 | 4.79 | 0.16 |
| Nov | 3.94 | 3.86 | 0.08 |
| Dec | 4.67 | 4.76 | -0.09 |
48.95 | 48.30 | 0.65 |