| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.64 | 1.65 | -0.01 |
| Feb | 1.93 | 2.08 | -0.15 |
| Mar | 2.94 | 2.91 | 0.03 |
| Apr | 3.99 | 4.05 | -0.06 |
| May | 5.50 | 5.42 | 0.08 |
| Jun | 4.76 | 4.91 | -0.15 |
| Jul | 3.73 | 3.65 | 0.08 |
| Aug | 3.44 | 3.21 | 0.23 |
| Sep | 4.29 | 4.10 | 0.19 |
| Oct | 3.63 | 3.63 | 0.00 |
| Nov | 2.51 | 2.56 | -0.05 |
| Dec | 2.27 | 2.28 | -0.01 |
40.63 | 40.45 | 0.18 |