Viewing Station: IN-PR-3 : Rockville 3.6 ENE
May 14, 2020 - Sep 12, 20262,559 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.07"
September 1-18, 2026(12 of 18 days covered by obs)
NOAA Normal
1.86"
Departure from Normal
-1.79" : 4% of Normal
Year-To-Date: 38.10"
Jan 1 to Sep 18, 2026(253 of 261 days covered by obs)
NOAA Normal
31.80"
Departure from Normal
6.30" : 120% of Normal
Water Year-To-Date: 43.66"
Oct 1, 2025 to Sep 18, 2026(344 of 353 days covered by obs)
NOAA Normal
41.57"
Departure from Normal
2.09" : 105% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.85
3.01
-0.16
Feb
2.34
2.61
-0.27
Mar
3.07
3.25
-0.18
Apr
4.64
4.65
-0.01
May
4.53
4.76
-0.23
Jun
5.16
5.05
0.11
Jul
4.14
4.37
-0.23
Aug
3.21
3.40
-0.19
Sep
3.10
3.09
0.01
Oct
3.50
3.62
-0.12
Nov
3.42
3.62
-0.20
Dec
2.85
2.96
-0.11
42.81
44.39
-1.58