| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.70 | -0.02 |
| Feb | 0.76 | 0.80 | -0.04 |
| Mar | 1.53 | 1.44 | 0.09 |
| Apr | 2.56 | 2.51 | 0.05 |
| May | 3.54 | 3.46 | 0.08 |
| Jun | 4.67 | 4.61 | 0.06 |
| Jul | 3.83 | 3.67 | 0.16 |
| Aug | 3.98 | 3.85 | 0.13 |
| Sep | 2.99 | 2.93 | 0.06 |
| Oct | 2.35 | 2.25 | 0.10 |
| Nov | 1.28 | 1.26 | 0.02 |
| Dec | 0.89 | 0.91 | -0.02 |
29.06 | 28.39 | 0.67 |