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.
California
Precipitation Rankings, September 2021
View Period (Months):All1234567891011121824364860
Download:
| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2021) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
September 2021 1-Month |
0.36" (9.14mm) | 0.45" (11.43mm) |
-0.09" (-2.29mm) | 77th Driest | Driest since: 2020 | 1974 |
| 51st Wettest | Wettest since: 2019 | 1918 | ||||
|
Aug–Sep 2021 2-Month |
0.46" (11.68mm) | 0.69" (17.53mm) |
-0.23" (-5.85mm) | 53rd Driest | Driest since: 2020 | 1937, 2018 |
| 75th Wettest | Wettest since: 2019 | 1983 | ||||
| Ties: 1911, 1922 | ||||||
|
Jul–Sep 2021 3-Month |
0.75" (19.05mm) | 0.87" (22.10mm) |
-0.12" (-3.05mm) | 66th Driest | Driest since: 2020 | 1928 |
| 62nd Wettest | Wettest since: 2019 | 1976 | ||||
| Ties: 2005 | ||||||
|
Jun–Sep 2021 4-Month |
0.89" (22.61mm) | 1.22" (30.99mm) |
-0.33" (-8.38mm) | 43rd Driest | Driest since: 2020 | 2002 |
| 85th Wettest | Wettest since: 2019 | 1982 | ||||
| Ties: 1911 | ||||||
|
May–Sep 2021 5-Month |
1.00" (25.40mm) | 2.10" (53.34mm) |
-1.10" (-27.94mm) | 8th Driest | Driest since: 2008 | 1924 |
| 120th Wettest | Wettest since: 2020 | 1998 | ||||
|
Apr–Sep 2021 6-Month |
1.29" (32.77mm) | 3.74" (95.00mm) |
-2.45" (-62.23mm) | 3rd Driest | Driest since: 2008 | 1924 |
| 125th Wettest | Wettest since: 2020 | 1896 | ||||
|
Mar–Sep 2021 7-Month |
3.02" (76.71mm) | 6.95" (176.53mm) |
-3.93" (-99.82mm) | 3rd Driest | Driest since: 2008 | 2008 |
| 125th Wettest | Wettest since: 2020 | 1995 | ||||
| Ties: 1966 | ||||||
|
Feb–Sep 2021 8-Month |
4.41" (112.01mm) | 10.80" (274.32mm) |
-6.39" (-162.31mm) | 1st Driest | Driest since: 2021 | 2021 |
| 127th Wettest | Wettest since: 2020 | 1998 | ||||
|
Jan–Sep 2021 9-Month |
8.06" (204.72mm) | 15.05" (382.27mm) |
-6.99" (-177.55mm) | 8th Driest | Driest since: 2015 | 2013 |
| 120th Wettest | Wettest since: 2020 | 1998 | ||||
|
Dec 2020–Sep 2021 10-Month |
9.89" (251.21mm) | 18.67" (474.22mm) |
-8.78" (-223.01mm) | 4th Driest | Driest since: 1977 | 1924 |
| 123rd Wettest | Wettest since: 2020 | 1983 | ||||
|
Nov 2020–Sep 2021 11-Month |
11.08" (281.43mm) | 21.25" (539.75mm) |
-10.17" (-258.32mm) | 3rd Driest | Driest since: 1977 | 1924 |
| 124th Wettest | Wettest since: 2020 | 1983 | ||||
|
Oct 2020–Sep 2021 12-Month |
11.13" (282.70mm) | 22.45" (570.23mm) |
-11.32" (-287.53mm) | 3rd Driest | Driest since: 1977 | 1924 |
| 124th Wettest | Wettest since: 2020 | 1983 | ||||
|
Apr 2020–Sep 2021 18-Month |
14.67" (372.62mm) | 26.19" (665.23mm) |
-11.52" (-292.61mm) | 1st Driest | Driest since: 2021 | 2021 |
| 126th Wettest | Wettest since: 2020 | 1983 | ||||
|
Oct 2019–Sep 2021 24-Month |
26.77" (679.96mm) | 44.90" (1,140.46mm) |
-18.13" (-460.50mm) | 2nd Driest | Driest since: 1977 | 1977 |
| 124th Wettest | Wettest since: 2020 | 1983 | ||||
|
Oct 2018–Sep 2021 36-Month |
55.14" (1,400.56mm) | 67.32" (1,709.93mm) |
-12.18" (-309.37mm) | 24th Driest | Driest since: 2016 | 2014 |
| 101st Wettest | Wettest since: 2020 | 1984 | ||||
|
Oct 2017–Sep 2021 48-Month |
70.96" (1,802.38mm) | 89.51" (2,273.55mm) |
-18.55" (-471.17mm) | 11th Driest | Driest since: 2016 | 2015 |
| 113th Wettest | Wettest since: 2020 | 1998 | ||||
|
Oct 2016–Sep 2021 60-Month |
105.98" (2,691.89mm) | 111.69" (2,836.93mm) |
-5.71" (-145.04mm) | 54th Driest | Driest since: 2018 | 1991 |
| 69th Wettest | Wettest since: 2020 | 1999 | ||||
| Ties: 1976 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on September 26, 2022 from https://www.ncdc.noaa.gov/cag/