| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.67 | 1.71 | -0.04 |
| Feb | 1.75 | 1.93 | -0.18 |
| Mar | 3.27 | 3.26 | 0.01 |
| Apr | 4.46 | 4.17 | 0.29 |
| May | 5.62 | 5.93 | -0.31 |
| Jun | 4.69 | 4.62 | 0.07 |
| Jul | 3.77 | 3.76 | 0.01 |
| Aug | 3.47 | 3.50 | -0.03 |
| Sep | 3.93 | 3.80 | 0.13 |
| Oct | 3.66 | 3.65 | 0.01 |
| Nov | 2.86 | 2.78 | 0.08 |
| Dec | 2.40 | 2.41 | -0.01 |
41.55 | 41.52 | 0.03 |