Viewing Station: TX-HYS-171 : San Marcos 3.4 WSW
Sep 21, 2017 - Apr 20, 20262,040 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 6.18"
April 1-21, 2026(20 of 21 days covered by obs)
NOAA Normal
1.81"
Departure from Normal
4.37" : 341% of Normal
Year-To-Date: 6.78"
Jan 1 to Apr 21, 2026(110 of 111 days covered by obs)
NOAA Normal
8.85"
Departure from Normal
-2.07" : 77% of Normal
Water Year-To-Date: 9.70"
Oct 1, 2025 to Apr 21, 2026(202 of 203 days covered by obs)
NOAA Normal
17.96"
Departure from Normal
-8.26" : 54% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.38
2.26
0.12
Feb
1.92
1.83
0.09
Mar
2.74
2.76
-0.02
Apr
2.59
2.75
-0.16
May
4.29
4.33
-0.04
Jun
3.44
3.37
0.07
Jul
2.21
2.52
-0.31
Aug
2.37
2.48
-0.11
Sep
3.53
3.74
-0.21
Oct
4.09
4.12
-0.03
Nov
2.60
2.68
-0.08
Dec
2.42
2.46
-0.04
34.58
35.30
-0.72