Viewing Station: IA-BT-16 : Shellsburg 2.9 S
Aug 27, 2020 - Mar 15, 20262,174 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.04"
March 1-16, 2026(15 of 16 days covered by obs)
NOAA Normal
1.01"
Departure from Normal
0.03" : 103% of Normal
Year-To-Date: 2.91"
Jan 1 to Mar 16, 2026(74 of 75 days covered by obs)
NOAA Normal
3.25"
Departure from Normal
-0.34" : 90% of Normal
Water Year-To-Date: 7.29"
Oct 1, 2025 to Mar 16, 2026(166 of 167 days covered by obs)
NOAA Normal
9.76"
Departure from Normal
-2.47" : 75% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.03
1.14
-0.11
Feb
1.21
1.31
-0.10
Mar
1.95
2.09
-0.14
Apr
3.80
3.77
0.03
May
4.50
4.65
-0.15
Jun
5.58
5.56
0.02
Jul
4.32
4.38
-0.06
Aug
4.29
4.21
0.08
Sep
3.59
3.68
-0.09
Oct
2.89
2.92
-0.03
Nov
2.09
2.12
-0.03
Dec
1.53
1.60
-0.07
36.78
37.43
-0.65