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Riverside rainfall for 2021

Riverside picked up 7.26 inches of rain in 2021. Measurable rain, 0.01 inch or more in a day, fell on 27 days at Riverside Municipal Airport; the wettest day brought 1.16 inches on Dec 14, 2021. The 1991-2020 normal for a full year is 9.37 inches. The total landed 2.11 inches below the normal, which works out to 23% less. 2021 ranks 14th out of 25 complete years, wettest first, in a record that starts in 1998.

Previous year, 2020Following year, 2022Back to Riverside rainfall totals

Riverside rainfall for 2021

Riverside rainfall for 2021
Year total7.26 inches2021
1991-2020 normal9.37 inchesAverages are 1991-2020 normals from NCEI.
Departure vs normal-2.11 inches (-23%)77% of normal
Year rank14th of 25Complete years from 1998, wettest first
Rain days27
Wettest day1.16 inches

Rain by month in 2021

Measured total1991-2020 normal
Monthly rain totals for 2021. Dark bars show measured amounts, light bars show the 1991-2020 normal for comparison.

Every day with measurable rain in 2021

Every day with measurable rain in 2021: Riverside
DateRainfall
0.05 inches
0.04 inches
0.02 inches
0.31 inches
0.23 inches
0.01 inches
0.78 inches
1.03 inches
1.16 inches
0.11 inches
0.01 inches
0.08 inches
0.15 inches
0.06 inches
0.15 inches
0.01 inches
0.02 inches
0.08 inches
0.47 inches
0.12 inches
0.66 inches
0.12 inches
0.56 inches
0.29 inches
0.42 inches
0.04 inches
0.28 inches

Daily totals come from Riverside Municipal Airport, which appears in GHCN-Daily with records going back to 1998. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.

Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.