| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.58 | -0.03 |
| Feb | 2.88 | 2.87 | 0.01 |
| Mar | 4.16 | 4.23 | -0.07 |
| Apr | 3.80 | 3.86 | -0.06 |
| May | 4.14 | 4.01 | 0.13 |
| Jun | 4.50 | 4.52 | -0.02 |
| Jul | 4.91 | 4.86 | 0.05 |
| Aug | 4.55 | 4.51 | 0.04 |
| Sep | 4.41 | 4.25 | 0.16 |
| Oct | 4.39 | 4.25 | 0.14 |
| Nov | 3.40 | 3.41 | -0.01 |
| Dec | 4.37 | 4.29 | 0.08 |
49.06 | 48.64 | 0.42 |