| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.16 | 5.29 | -0.13 |
| Feb | 4.41 | 4.50 | -0.09 |
| Mar | 4.68 | 4.88 | -0.20 |
| Apr | 4.42 | 4.54 | -0.12 |
| May | 4.70 | 4.59 | 0.11 |
| Jun | 4.78 | 5.13 | -0.35 |
| Jul | 3.73 | 3.95 | -0.22 |
| Aug | 3.95 | 4.62 | -0.67 |
| Sep | 4.04 | 4.19 | -0.15 |
| Oct | 5.00 | 5.06 | -0.06 |
| Nov | 4.72 | 5.01 | -0.29 |
| Dec | 5.43 | 5.64 | -0.21 |
55.02 | 57.40 | -2.38 |