| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.86 | 2.78 | 0.08 |
| Feb | 2.30 | 2.36 | -0.06 |
| Mar | 3.27 | 3.34 | -0.07 |
| Apr | 3.58 | 3.54 | 0.04 |
| May | 4.01 | 4.00 | 0.01 |
| Jun | 3.95 | 3.89 | 0.06 |
| Jul | 3.99 | 3.76 | 0.23 |
| Aug | 3.76 | 3.97 | -0.21 |
| Sep | 4.24 | 4.03 | 0.21 |
| Oct | 3.63 | 3.64 | -0.01 |
| Nov | 3.05 | 3.00 | 0.05 |
| Dec | 3.07 | 3.14 | -0.07 |
41.71 | 41.45 | 0.26 |