| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 3.59 | 0.06 |
| Feb | 3.47 | 3.45 | 0.02 |
| Mar | 4.58 | 4.67 | -0.09 |
| Apr | 4.22 | 4.03 | 0.19 |
| May | 3.60 | 3.40 | 0.20 |
| Jun | 4.09 | 3.93 | 0.16 |
| Jul | 3.53 | 3.47 | 0.06 |
| Aug | 3.45 | 3.31 | 0.14 |
| Sep | 3.68 | 3.46 | 0.22 |
| Oct | 4.66 | 4.77 | -0.11 |
| Nov | 4.00 | 4.01 | -0.01 |
| Dec | 4.71 | 4.61 | 0.10 |
47.64 | 46.70 | 0.94 |