Climate at a Glance
Regional 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 October 2019. For more information, please see Climatological Rankings.
West Climate Region
Precipitation Rankings, December 2018
View Period (Months):All1234567891011121824364860
Download:
| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2018) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
December 2018 1-Month |
1.79" (45.47mm) | 2.55" (64.77mm) |
-0.76" (-19.30mm) | 41st Driest | Driest since: 2017 | 1989 |
| 84th Wettest | Wettest since: 2016 | 1955 | ||||
|
Nov–Dec 2018 2-Month |
3.77" (95.76mm) | 4.39" (111.51mm) |
-0.62" (-15.75mm) | 51st Driest | Driest since: 2017 | 1956 |
| 74th Wettest | Wettest since: 2016 | 1983 | ||||
|
Oct–Dec 2018 3-Month |
4.63" (117.60mm) | 5.42" (137.67mm) |
-0.79" (-20.07mm) | 51st Driest | Driest since: 2017 | 1976 |
| 74th Wettest | Wettest since: 2016 | 1983 | ||||
|
Sep–Dec 2018 4-Month |
4.68" (118.87mm) | 5.92" (150.37mm) |
-1.24" (-31.50mm) | 40th Driest | Driest since: 2017 | 1917 |
| 85th Wettest | Wettest since: 2016 | 1983 | ||||
| Ties: 1910, 1948 | ||||||
|
Aug–Dec 2018 5-Month |
4.79" (121.67mm) | 6.31" (160.27mm) |
-1.52" (-38.60mm) | 37th Driest | Driest since: 2017 | 1917 |
| 88th Wettest | Wettest since: 2016 | 1983 | ||||
|
Jul–Dec 2018 6-Month |
5.21" (132.33mm) | 6.63" (168.40mm) |
-1.42" (-36.07mm) | 42nd Driest | Driest since: 2017 | 1917 |
| 83rd Wettest | Wettest since: 2016 | 1983 | ||||
|
Jun–Dec 2018 7-Month |
5.31" (134.87mm) | 7.12" (180.85mm) |
-1.81" (-45.98mm) | 33rd Driest | Driest since: 2017 | 1917 |
| 92nd Wettest | Wettest since: 2016 | 1983 | ||||
|
May–Dec 2018 8-Month |
6.31" (160.27mm) | 8.04" (204.22mm) |
-1.73" (-43.95mm) | 37th Driest | Driest since: 2017 | 1959 |
| 88th Wettest | Wettest since: 2016 | 1983 | ||||
|
Apr–Dec 2018 9-Month |
7.92" (201.17mm) | 9.38" (238.25mm) |
-1.46" (-37.08mm) | 43rd Driest | Driest since: 2017 | 1959 |
| 82nd Wettest | Wettest since: 2016 | 1983 | ||||
| Ties: 2009 | ||||||
|
Mar–Dec 2018 10-Month |
11.60" (294.64mm) | 11.71" (297.43mm) |
-0.11" (-2.79mm) | 64th Driest | Driest since: 2017 | 1959 |
| 61st Wettest | Wettest since: 2016 | 1983 | ||||
|
Feb–Dec 2018 11-Month |
12.11" (307.59mm) | 14.43" (366.52mm) |
-2.32" (-58.93mm) | 36th Driest | Driest since: 2013 | 2013 |
| 89th Wettest | Wettest since: 2017 | 1983 | ||||
|
Jan–Dec 2018 12-Month |
14.46" (367.28mm) | 17.41" (442.21mm) |
-2.95" (-74.93mm) | 37th Driest | Driest since: 2015 | 2013 |
| 88th Wettest | Wettest since: 2017 | 1983 | ||||
|
Jul 2017–Dec 2018 18-Month |
18.48" (469.39mm) | 24.07" (611.38mm) |
-5.59" (-141.99mm) | 15th Driest | Driest since: 2013 | 1959 |
| 109th Wettest | Wettest since: 2017 | 1983 | ||||
|
Jan 2017–Dec 2018 24-Month |
35.63" (905.00mm) | 34.81" (884.17mm) |
0.82" (20.83mm) | 74th Driest | Driest since: 2016 | 1929 |
| 50th Wettest | Wettest since: 2017 | 1983 | ||||
|
Jan 2016–Dec 2018 36-Month |
55.37" (1,406.40mm) | 52.26" (1,327.40mm) |
3.11" (79.00mm) | 86th Driest | Driest since: 2017 | 2015 |
| 37th Wettest | Wettest since: 2012 | 1983 | ||||
|
Jan 2015–Dec 2018 48-Month |
68.88" (1,749.55mm) | 69.53" (1,766.06mm) |
-0.65" (-16.51mm) | 67th Driest | Driest since: 2016 | 1949 |
| 55th Wettest | Wettest since: 2017 | 1983 | ||||
|
Jan 2014–Dec 2018 60-Month |
84.68" (2,150.87mm) | 86.83" (2,205.48mm) |
-2.15" (-54.61mm) | 62nd Driest | Driest since: 2017 | 1932 |
| 59th Wettest | Wettest since: 2007 | 1983 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published November 2019, retrieved on December 7, 2019 from https://www.ncdc.noaa.gov/cag/