| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.35 | 5.21 | 0.14 |
| Feb | 5.23 | 5.06 | 0.17 |
| Mar | 5.34 | 5.17 | 0.17 |
| Apr | 5.20 | 5.19 | 0.01 |
| May | 4.50 | 4.51 | -0.01 |
| Jun | 4.33 | 4.41 | -0.08 |
| Jul | 5.13 | 4.67 | 0.46 |
| Aug | 3.75 | 3.76 | -0.01 |
| Sep | 3.62 | 3.82 | -0.20 |
| Oct | 3.60 | 3.47 | 0.13 |
| Nov | 4.45 | 4.47 | -0.02 |
| Dec | 5.86 | 5.80 | 0.06 |
56.36 | 55.54 | 0.82 |