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 April 2022. For more information, please see Climatological Rankings.
Northwest Climate Region
Precipitation Rankings, December 2017
View Period (Months):All1234567891011121824364860
Download:
| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2021) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
December 2017 1-Month |
3.00" (76.20mm) | 4.63" (117.60mm) |
-1.63" (-41.40mm) | 21st Driest | Driest since: 2013 | 1976 |
| 107th Wettest | Wettest since: 2016 | 1964 | ||||
|
Nov–Dec 2017 2-Month |
8.61" (218.69mm) | 8.97" (227.84mm) |
-0.36" (-9.15mm) | 59th Driest | Driest since: 2016 | 1976 |
| 69th Wettest | Wettest since: 2015 | 1996 | ||||
|
Oct–Dec 2017 3-Month |
11.76" (298.70mm) | 11.51" (292.35mm) |
0.25" (6.35mm) | 65th Driest | Driest since: 2013 | 1976 |
| 63rd Wettest | Wettest since: 2016 | 1996 | ||||
|
Sep–Dec 2017 4-Month |
13.37" (339.60mm) | 12.93" (328.42mm) |
0.44" (11.18mm) | 68th Driest | Driest since: 2013 | 1976 |
| 60th Wettest | Wettest since: 2016 | 1996 | ||||
|
Aug–Dec 2017 5-Month |
13.61" (345.69mm) | 13.73" (348.74mm) |
-0.12" (-3.05mm) | 64th Driest | Driest since: 2013 | 1936 |
| 64th Wettest | Wettest since: 2016 | 1996 | ||||
|
Jul–Dec 2017 6-Month |
13.76" (349.50mm) | 14.46" (367.28mm) |
-0.70" (-17.78mm) | 57th Driest | Driest since: 2013 | 1936 |
| 71st Wettest | Wettest since: 2016 | 1996 | ||||
|
Jun–Dec 2017 7-Month |
15.29" (388.37mm) | 16.18" (410.97mm) |
-0.89" (-22.60mm) | 58th Driest | Driest since: 2013 | 1976 |
| 70th Wettest | Wettest since: 2016 | 1996 | ||||
|
May–Dec 2017 8-Month |
17.11" (434.59mm) | 18.32" (465.33mm) |
-1.21" (-30.74mm) | 49th Driest | Driest since: 2013 | 1935 |
| 79th Wettest | Wettest since: 2016 | 1996 | ||||
|
Apr–Dec 2017 9-Month |
20.95" (532.13mm) | 20.67" (525.02mm) |
0.28" (7.11mm) | 71st Driest | Driest since: 2013 | 1976 |
| 57th Wettest | Wettest since: 2016 | 1996 | ||||
| Ties: 1994 | ||||||
|
Mar–Dec 2017 10-Month |
26.93" (684.02mm) | 23.93" (607.82mm) |
3.00" (76.20mm) | 99th Driest | Driest since: 2015 | 1976 |
| 29th Wettest | Wettest since: 2016 | 1996 | ||||
|
Feb–Dec 2017 11-Month |
33.07" (839.98mm) | 27.54" (699.52mm) |
5.53" (140.46mm) | 113th Driest | Driest since: 2016 | 1935 |
| 15th Wettest | Wettest since: 2014 | 1996 | ||||
|
Jan–Dec 2017 12-Month |
37.14" (943.36mm) | 32.07" (814.58mm) |
5.07" (128.78mm) | 113th Driest | Driest since: 2016 | 1929 |
| 15th Wettest | Wettest since: 2012 | 1996 | ||||
|
Jul 2016–Dec 2017 18-Month |
55.09" (1,399.29mm) | 46.58" (1,183.13mm) |
8.51" (216.16mm) | 120th Driest | Driest since: 2016 | 1929 |
| 7th Wettest | Wettest since: 1997 | 1996 | ||||
|
Jan 2016–Dec 2017 24-Month |
72.45" (1,840.23mm) | 64.19" (1,630.43mm) |
8.26" (209.80mm) | 115th Driest | Driest since: 2016 | 1930 |
| 12th Wettest | Wettest since: 1999 | 1996 | ||||
|
Jan 2015–Dec 2017 36-Month |
103.59" (2,631.19mm) | 96.33" (2,446.78mm) |
7.26" (184.41mm) | 109th Driest | Driest since: 2016 | 1930 |
| 17th Wettest | Wettest since: 2012 | 1997 | ||||
|
Jan 2014–Dec 2017 48-Month |
139.57" (3,545.08mm) | 128.33" (3,259.58mm) |
11.24" (285.50mm) | 113th Driest | Driest since: 2016 | 1931 |
| 12th Wettest | Wettest since: 1999 | 1998 | ||||
|
Jan 2013–Dec 2017 60-Month |
164.08" (4,167.63mm) | 160.34" (4,072.64mm) |
3.74" (94.99mm) | 84th Driest | Driest since: 2015 | 1932 |
| 40th Wettest | Wettest since: 2016 | 1999 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published May 2022, retrieved on May 26, 2022 from https://www.ncdc.noaa.gov/cag/