Viewing Station: WY-SW-16 : Rock Springs 7.1 SSE
Nov 12, 2009 - Sep 20, 20264,617 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.59"
September 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
0.68"
Departure from Normal
-0.09" : 87% of Normal
Year-To-Date: 7.19"
Jan 1 to Sep 20, 2026(257 of 263 days covered by obs)
NOAA Normal
6.95"
Departure from Normal
0.24" : 103% of Normal
Water Year-To-Date: 9.52"
Oct 1, 2025 to Sep 20, 2026(340 of 355 days covered by obs)
NOAA Normal
9.01"
Departure from Normal
0.51" : 106% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.49
0.49
0.00
Feb
0.52
0.52
0.00
Mar
0.63
0.73
-0.10
Apr
1.07
1.13
-0.06
May
1.39
1.53
-0.14
Jun
0.79
0.80
-0.01
Jul
0.57
0.55
0.02
Aug
0.81
0.64
0.17
Sep
1.02
0.96
0.06
Oct
1.04
1.00
0.04
Nov
0.50
0.64
-0.14
Dec
0.52
0.49
0.03
9.35
9.48
-0.13