Climate at a Glance
Statewide Rankings
Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of August 2022. For more information, please see Climatological Rankings.
Iowa
Precipitation Rankings, December 2018
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2021) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
December 2018 1-Month |
2.10" (53.34mm) | 1.11" (28.19mm) |
0.99" (25.15mm) | 119th Driest | Driest since: 2017 | 2002 |
| 9th Wettest | Wettest since: 2015 | 2015 | ||||
| Ties: 1984 | ||||||
|
Nov–Dec 2018 2-Month |
3.91" (99.31mm) | 2.87" (72.90mm) |
1.04" (26.41mm) | 104th Driest | Driest since: 2017 | 1976 |
| 24th Wettest | Wettest since: 2015 | 2015 | ||||
| Ties: 1952 | ||||||
|
Oct–Dec 2018 3-Month |
8.54" (216.92mm) | 5.16" (131.06mm) |
3.38" (85.86mm) | 117th Driest | Driest since: 2017 | 1910 |
| 11th Wettest | Wettest since: 2015 | 1931 | ||||
|
Sep–Dec 2018 4-Month |
16.64" (422.66mm) | 8.83" (224.28mm) |
7.81" (198.38mm) | 125th Driest | Driest since: 2017 | 1939, 1976 |
| 3rd Wettest | Wettest since: 1941 | 1931 | ||||
|
Aug–Dec 2018 5-Month |
23.06" (585.72mm) | 12.67" (321.82mm) |
10.39" (263.90mm) | 127th Driest | Driest since: 2017 | 1976 |
| 1st Wettest | Wettest to Date | 2018 | ||||
|
Jul–Dec 2018 6-Month |
26.45" (671.83mm) | 16.52" (419.61mm) |
9.93" (252.22mm) | 127th Driest | Driest since: 2017 | 1976 |
| 1st Wettest | Wettest to Date | 2018 | ||||
|
Jun–Dec 2018 7-Month |
34.00" (863.60mm) | 21.15" (537.21mm) |
12.85" (326.39mm) | 127th Driest | Driest since: 2017 | 1976 |
| 1st Wettest | Wettest to Date | 2018 | ||||
|
May–Dec 2018 8-Month |
38.70" (982.98mm) | 25.20" (640.08mm) |
13.50" (342.90mm) | 125th Driest | Driest since: 2017 | 1976 |
| 3rd Wettest | Wettest since: 1993 | 1993 | ||||
|
Apr–Dec 2018 9-Month |
40.24" (1,022.10mm) | 28.15" (715.01mm) |
12.09" (307.09mm) | 124th Driest | Driest since: 2017 | 1910 |
| 4th Wettest | Wettest since: 2015 | 1993 | ||||
|
Mar–Dec 2018 10-Month |
42.52" (1,080.01mm) | 30.10" (764.54mm) |
12.42" (315.47mm) | 126th Driest | Driest since: 2017 | 1910 |
| 2nd Wettest | Wettest since: 1993 | 1993 | ||||
|
Feb–Dec 2018 11-Month |
44.06" (1,119.12mm) | 31.12" (790.45mm) |
12.94" (328.67mm) | 126th Driest | Driest since: 2017 | 1910 |
| 2nd Wettest | Wettest since: 1993 | 1993 | ||||
|
Jan–Dec 2018 12-Month |
45.08" (1,145.03mm) | 32.09" (815.09mm) |
12.99" (329.94mm) | 126th Driest | Driest since: 2017 | 1910 |
| 2nd Wettest | Wettest since: 1993 | 1993 | ||||
|
Jul 2017–Dec 2018 18-Month |
60.22" (1,529.59mm) | 48.69" (1,236.73mm) |
11.53" (292.86mm) | 116th Driest | Driest since: 2017 | 1956 |
| 11th Wettest | Wettest since: 2016 | 1993 | ||||
|
Jan 2017–Dec 2018 24-Month |
77.44" (1,966.98mm) | 64.24" (1,631.70mm) |
13.20" (335.28mm) | 116th Driest | Driest since: 2017 | 1989 |
| 11th Wettest | Wettest since: 2016 | 2019 | ||||
|
Jan 2016–Dec 2018 36-Month |
115.54" (2,934.72mm) | 96.36" (2,447.54mm) |
19.18" (487.18mm) | 117th Driest | Driest since: 2017 | 1957 |
| 9th Wettest | Wettest since: 2016 | 2010 | ||||
|
Jan 2015–Dec 2018 48-Month |
158.07" (4,014.98mm) | 128.37" (3,260.60mm) |
29.70" (754.38mm) | 122nd Driest | Driest since: 2017 | 1958 |
| 3rd Wettest | Wettest since: 2010 | 2010 | ||||
|
Jan 2014–Dec 2018 60-Month |
196.76" (4,997.70mm) | 160.36" (4,073.14mm) |
36.40" (924.56mm) | 120th Driest | Driest since: 2017 | 1956 |
| 4th Wettest | Wettest since: 2011 | 2010 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on October 4, 2022 from https://www.ncdc.noaa.gov/cag/