| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.46 | 2.63 | -0.17 |
| Feb | 2.45 | 2.54 | -0.09 |
| Mar | 3.80 | 3.90 | -0.10 |
| Apr | 4.64 | 4.83 | -0.19 |
| May | 5.18 | 5.42 | -0.24 |
| Jun | 4.17 | 4.35 | -0.18 |
| Jul | 4.08 | 4.13 | -0.05 |
| Aug | 3.89 | 4.02 | -0.13 |
| Sep | 3.76 | 3.93 | -0.17 |
| Oct | 3.23 | 3.24 | -0.01 |
| Nov | 3.68 | 3.80 | -0.12 |
| Dec | 2.56 | 2.71 | -0.15 |
43.90 | 45.50 | -1.60 |