| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.50 | 4.43 | 0.07 |
| Feb | 3.62 | 3.76 | -0.14 |
| Mar | 4.49 | 4.46 | 0.03 |
| Apr | 4.66 | 4.95 | -0.29 |
| May | 4.60 | 4.96 | -0.36 |
| Jun | 4.71 | 5.00 | -0.29 |
| Jul | 4.88 | 4.97 | -0.09 |
| Aug | 5.28 | 5.18 | 0.10 |
| Sep | 4.85 | 4.75 | 0.10 |
| Oct | 4.23 | 4.06 | 0.17 |
| Nov | 4.08 | 4.01 | 0.07 |
| Dec | 4.58 | 4.75 | -0.17 |
54.48 | 55.28 | -0.80 |