| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.93 | 3.06 | -0.13 |
| Feb | 2.62 | 2.71 | -0.09 |
| Mar | 3.67 | 3.80 | -0.13 |
| Apr | 3.37 | 3.38 | -0.01 |
| May | 4.07 | 4.41 | -0.34 |
| Jun | 4.18 | 4.53 | -0.35 |
| Jul | 4.55 | 4.55 | 0.00 |
| Aug | 3.67 | 3.76 | -0.09 |
| Sep | 4.28 | 4.38 | -0.10 |
| Oct | 3.77 | 3.93 | -0.16 |
| Nov | 3.02 | 3.16 | -0.14 |
| Dec | 3.58 | 3.65 | -0.07 |
43.71 | 45.32 | -1.61 |