| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.67 | -0.12 |
| Feb | 2.78 | 3.15 | -0.37 |
| Mar | 4.08 | 4.38 | -0.30 |
| Apr | 3.99 | 4.22 | -0.23 |
| May | 4.10 | 4.33 | -0.23 |
| Jun | 4.70 | 5.06 | -0.36 |
| Jul | 4.71 | 4.62 | 0.09 |
| Aug | 4.44 | 4.70 | -0.26 |
| Sep | 4.50 | 4.53 | -0.03 |
| Oct | 4.58 | 4.95 | -0.37 |
| Nov | 3.49 | 3.76 | -0.27 |
| Dec | 4.38 | 4.73 | -0.35 |
49.30 | 52.10 | -2.80 |