| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.75 | -0.01 |
| Feb | 0.83 | 0.80 | 0.03 |
| Mar | 1.65 | 1.63 | 0.02 |
| Apr | 2.99 | 2.86 | 0.13 |
| May | 4.20 | 4.15 | 0.05 |
| Jun | 4.92 | 5.22 | -0.30 |
| Jul | 3.86 | 3.80 | 0.06 |
| Aug | 3.97 | 3.82 | 0.15 |
| Sep | 3.20 | 3.22 | -0.02 |
| Oct | 2.41 | 2.45 | -0.04 |
| Nov | 1.49 | 1.35 | 0.14 |
| Dec | 0.95 | 1.00 | -0.05 |
31.21 | 31.05 | 0.16 |