Climate at a Glance
National 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 May 2022. For more information, please see Climatological Rankings.
Contiguous U.S.
Precipitation Rankings, September 2020
View Period (Months):All1234567891011121824364860
Download:
| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2021) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
September 2020 1-Month |
2.44" (61.98mm) | 2.49" (63.25mm) |
-0.05" (-1.27mm) | 52nd Driest | Driest since: 2017 | 1956 |
| 76th Wettest | Wettest since: 2019 | 1986 | ||||
| Ties: 1918, 1920, 1966, 1978 | ||||||
|
Aug–Sep 2020 2-Month |
4.86" (123.44mm) | 5.11" (129.79mm) |
-0.25" (-6.35mm) | 42nd Driest | Driest since: 2015 | 1956 |
| 86th Wettest | Wettest since: 2019 | 1977 | ||||
| Ties: 1995, 2001 | ||||||
|
Jul–Sep 2020 3-Month |
7.80" (198.12mm) | 7.88" (200.15mm) |
-0.08" (-2.03mm) | 58th Driest | Driest since: 2015 | 1930 |
| 70th Wettest | Wettest since: 2019 | 1915 | ||||
| Ties: 1914 | ||||||
|
Jun–Sep 2020 4-Month |
10.53" (267.46mm) | 10.81" (274.57mm) |
-0.28" (-7.11mm) | 43rd Driest | Driest since: 2012 | 1930 |
| 85th Wettest | Wettest since: 2019 | 1915 | ||||
|
May–Sep 2020 5-Month |
13.62" (345.95mm) | 13.72" (348.49mm) |
-0.10" (-2.54mm) | 53rd Driest | Driest since: 2012 | 1956 |
| 75th Wettest | Wettest since: 2019 | 1915 | ||||
| Ties: 1999 | ||||||
|
Apr–Sep 2020 6-Month |
16.14" (409.96mm) | 16.24" (412.50mm) |
-0.10" (-2.54mm) | 55th Driest | Driest since: 2012 | 1956 |
| 73rd Wettest | Wettest since: 2019 | 1915 | ||||
|
Mar–Sep 2020 7-Month |
19.00" (482.60mm) | 18.75" (476.25mm) |
0.25" (6.35mm) | 67th Driest | Driest since: 2012 | 1956 |
| 61st Wettest | Wettest since: 2019 | 1973 | ||||
| Ties: 1929 | ||||||
|
Feb–Sep 2020 8-Month |
21.45" (544.83mm) | 20.88" (530.35mm) |
0.57" (14.48mm) | 75th Driest | Driest since: 2012 | 1930 |
| 53rd Wettest | Wettest since: 2019 | 2019 | ||||
| Ties: 1992 | ||||||
|
Jan–Sep 2020 9-Month |
24.21" (614.93mm) | 23.20" (589.28mm) |
1.01" (25.65mm) | 91st Driest | Driest since: 2014 | 1934 |
| 37th Wettest | Wettest since: 2019 | 2019 | ||||
|
Dec 2019–Sep 2020 10-Month |
26.78" (680.21mm) | 25.54" (648.72mm) |
1.24" (31.49mm) | 89th Driest | Driest since: 2014 | 1931 |
| 38th Wettest | Wettest since: 2019 | 2019 | ||||
|
Nov 2019–Sep 2020 11-Month |
28.72" (729.49mm) | 27.77" (705.36mm) |
0.95" (24.13mm) | 82nd Driest | Driest since: 2018 | 1934 |
| 45th Wettest | Wettest since: 2019 | 2019 | ||||
|
Oct 2019–Sep 2020 12-Month |
31.91" (810.51mm) | 29.94" (760.48mm) |
1.97" (50.03mm) | 98th Driest | Driest since: 2018 | 1934 |
| 29th Wettest | Wettest since: 2019 | 2019 | ||||
|
Apr 2019–Sep 2020 18-Month |
50.95" (1,294.13mm) | 46.20" (1,173.48mm) |
4.75" (120.65mm) | 118th Driest | Driest since: 2018 | 1931 |
| 9th Wettest | Wettest since: 2019 | 2019 | ||||
|
Oct 2018–Sep 2020 24-Month |
68.42" (1,737.87mm) | 59.92" (1,521.97mm) |
8.50" (215.90mm) | 125th Driest | Driest since: 2019 | 1918 |
| 1st Wettest | Wettest to Date | 2020 | ||||
|
Oct 2017–Sep 2020 36-Month |
99.49" (2,527.05mm) | 89.87" (2,282.70mm) |
9.62" (244.35mm) | 121st Driest | Driest since: 2018 | 1956 |
| 4th Wettest | Wettest since: 2019 | 2019 | ||||
|
Oct 2016–Sep 2020 48-Month |
132.85" (3,374.39mm) | 119.78" (3,042.41mm) |
13.07" (331.98mm) | 122nd Driest | Driest since: 2018 | 1956 |
| 2nd Wettest | Wettest since: 2019 | 2019 | ||||
|
Oct 2015–Sep 2020 60-Month |
167.72" (4,260.09mm) | 149.66" (3,801.36mm) |
18.06" (458.73mm) | 122nd Driest | Driest since: 2019 | 1956 |
| 1st Wettest | Wettest to Date | 2020 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published June 2022, retrieved on July 4, 2022 from https://www.ncei.noaa.gov/cag/