Viewing Station: IA-BT-12 : Fairfax 4.0 NW
Apr 1, 2017 - Aug 18, 20263,399 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.78"
August 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
2.48"
Departure from Normal
1.30" : 152% of Normal
Year-To-Date: 32.69"
Jan 1 to Aug 18, 2026(229 of 230 days covered by obs)
NOAA Normal
24.90"
Departure from Normal
7.79" : 131% of Normal
Water Year-To-Date: 36.95"
Oct 1, 2025 to Aug 18, 2026(321 of 322 days covered by obs)
NOAA Normal
31.47"
Departure from Normal
5.48" : 117% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.02
1.12
-0.10
Feb
1.21
1.31
-0.10
Mar
1.96
2.09
-0.13
Apr
3.80
3.74
0.06
May
4.51
4.54
-0.03
Jun
5.59
5.56
0.03
Jul
4.33
4.41
-0.08
Aug
4.27
4.17
0.10
Sep
3.61
3.66
-0.05
Oct
2.91
2.90
0.01
Nov
2.13
2.12
0.01
Dec
1.53
1.61
-0.08
36.87
37.23
-0.36