Viewing Station: IA-DM-15 : Yarmouth 1.9 SW
Jul 1, 2021 - May 20, 20261,790 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.19"
May 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
3.29"
Departure from Normal
-1.10" : 67% of Normal
Year-To-Date: 9.05"
Jan 1 to May 20, 2026(140 of 140 days covered by obs)
NOAA Normal
12.56"
Departure from Normal
-3.51" : 72% of Normal
Water Year-To-Date: 13.58"
Oct 1, 2025 to May 20, 2026(232 of 232 days covered by obs)
NOAA Normal
19.50"
Departure from Normal
-5.92" : 70% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.42
1.46
-0.04
Feb
1.66
1.75
-0.09
Mar
2.44
2.44
0.00
Apr
3.75
3.66
0.09
May
5.10
5.02
0.08
Jun
5.11
4.87
0.24
Jul
4.06
3.96
0.10
Aug
3.93
3.78
0.15
Sep
3.48
3.61
-0.13
Oct
2.91
2.86
0.05
Nov
2.25
2.27
-0.02
Dec
1.78
1.83
-0.05
37.89
37.51
0.38