| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.54 | 2.50 | 0.04 |
| Feb | 1.93 | 2.03 | -0.10 |
| Mar | 2.50 | 2.60 | -0.10 |
| Apr | 3.80 | 3.78 | 0.02 |
| May | 4.40 | 4.43 | -0.03 |
| Jun | 4.47 | 4.40 | 0.07 |
| Jul | 4.17 | 4.00 | 0.17 |
| Aug | 3.99 | 3.80 | 0.19 |
| Sep | 3.08 | 3.05 | 0.03 |
| Oct | 2.95 | 2.89 | 0.06 |
| Nov | 3.07 | 3.00 | 0.07 |
| Dec | 2.38 | 2.37 | 0.01 |
39.28 | 38.85 | 0.43 |