| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.00 | 4.06 | -0.06 |
| Feb | 3.49 | 3.50 | -0.01 |
| Mar | 4.81 | 4.99 | -0.18 |
| Apr | 4.49 | 4.60 | -0.11 |
| May | 3.51 | 3.45 | 0.06 |
| Jun | 4.01 | 4.07 | -0.06 |
| Jul | 3.41 | 3.34 | 0.07 |
| Aug | 3.92 | 3.86 | 0.06 |
| Sep | 4.09 | 4.08 | 0.01 |
| Oct | 4.79 | 4.76 | 0.03 |
| Nov | 4.32 | 4.20 | 0.12 |
| Dec | 4.80 | 4.95 | -0.15 |
49.64 | 49.86 | -0.22 |