| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.76 | -0.01 |
| Feb | 0.81 | 0.80 | 0.01 |
| Mar | 1.56 | 1.50 | 0.06 |
| Apr | 2.82 | 2.91 | -0.09 |
| May | 4.19 | 4.22 | -0.03 |
| Jun | 4.40 | 4.35 | 0.05 |
| Jul | 4.41 | 4.36 | 0.05 |
| Aug | 4.09 | 4.04 | 0.05 |
| Sep | 3.33 | 3.27 | 0.06 |
| Oct | 2.80 | 2.87 | -0.07 |
| Nov | 1.63 | 1.62 | 0.01 |
| Dec | 1.10 | 1.16 | -0.06 |
31.89 | 31.86 | 0.03 |