Viewing Station: AZ-PM-146 : Tucson 11.8 ENE
Apr 22, 2010 - Sep 17, 20254,400 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.32"
September 1-18, 2025(17 of 18 days covered by obs)
NOAA Normal
0.97"
Departure from Normal
0.35" : 137% of Normal
Year-To-Date: 6.43"
Jan 1 to Sep 18, 2025(258 of 261 days covered by obs)
NOAA Normal
10.48"
Departure from Normal
-4.05" : 61% of Normal
Water Year-To-Date: 7.18"
Oct 1, 2024 to Sep 18, 2025(350 of 353 days covered by obs)
NOAA Normal
13.43"
Departure from Normal
-6.25" : 53% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.28
1.44
-0.16
Feb
1.29
1.27
0.02
Mar
0.87
0.85
0.02
Apr
0.36
0.31
0.05
May
0.23
0.19
0.04
Jun
0.29
0.38
-0.09
Jul
2.49
2.09
0.40
Aug
2.70
2.82
-0.12
Sep
1.61
1.38
0.23
Oct
0.70
0.82
-0.12
Nov
0.83
0.71
0.12
Dec
1.42
1.37
0.05
14.07
13.63
0.44