| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.09 | 2.89 | 0.20 |
| Feb | 3.19 | 2.93 | 0.26 |
| Mar | 4.30 | 4.21 | 0.09 |
| Apr | 4.48 | 4.26 | 0.22 |
| May | 6.09 | 5.91 | 0.18 |
| Jun | 4.16 | 4.15 | 0.01 |
| Jul | 3.28 | 3.23 | 0.05 |
| Aug | 3.09 | 2.96 | 0.13 |
| Sep | 3.64 | 3.91 | -0.27 |
| Oct | 4.63 | 4.60 | 0.03 |
| Nov | 4.00 | 3.86 | 0.14 |
| Dec | 4.18 | 4.01 | 0.17 |
48.13 | 46.92 | 1.21 |