| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.46 | 0.04 |
| Feb | 2.94 | 2.92 | 0.02 |
| Mar | 4.07 | 4.17 | -0.10 |
| Apr | 3.42 | 3.43 | -0.01 |
| May | 3.61 | 3.87 | -0.26 |
| Jun | 3.92 | 4.02 | -0.10 |
| Jul | 4.20 | 4.19 | 0.01 |
| Aug | 5.06 | 4.60 | 0.46 |
| Sep | 4.15 | 4.63 | -0.48 |
| Oct | 3.90 | 4.34 | -0.44 |
| Nov | 3.24 | 3.28 | -0.04 |
| Dec | 3.75 | 3.88 | -0.13 |
45.76 | 46.79 | -1.03 |