| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.12 | 2.08 | 0.04 |
| Feb | 1.80 | 1.83 | -0.03 |
| Mar | 2.32 | 2.28 | 0.04 |
| Apr | 3.71 | 3.58 | 0.13 |
| May | 4.63 | 4.54 | 0.09 |
| Jun | 4.47 | 4.50 | -0.03 |
| Jul | 4.08 | 4.06 | 0.02 |
| Aug | 3.91 | 3.69 | 0.22 |
| Sep | 3.26 | 3.25 | 0.01 |
| Oct | 3.14 | 3.12 | 0.02 |
| Nov | 2.55 | 2.47 | 0.08 |
| Dec | 2.06 | 2.05 | 0.01 |
38.05 | 37.45 | 0.60 |