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 November 2019. For more information, please see Climatological Rankings.
Northwest Climate Region
Precipitation Rankings, May 1940
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2019) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
May 1940 1-Month |
1.09" (27.69mm) | 2.14" (54.36mm) |
-1.05" (-26.67mm) | 9th Driest | Driest since: 1935 | 1924 |
| 117th Wettest | Wettest since: 1939 | 1998 | ||||
|
Apr–May 1940 2-Month |
3.87" (98.30mm) | 4.50" (114.30mm) |
-0.63" (-16.00mm) | 37th Driest | Driest since: 1939 | 1924 |
| 89th Wettest | Wettest since: 1937 | 1996 | ||||
|
Mar–May 1940 3-Month |
8.07" (204.98mm) | 7.76" (197.10mm) |
0.31" (7.88mm) | 72nd Driest | Driest since: 1939 | 1924 |
| 54th Wettest | Wettest since: 1938 | 2011 | ||||
| Ties: 1900 | ||||||
|
Feb–May 1940 4-Month |
15.12" (384.05mm) | 11.37" (288.80mm) |
3.75" (95.25mm) | 117th Driest | Driest since: 1939 | 1924 |
| 9th Wettest | Wettest since: 1916 | 1904 | ||||
|
Jan–May 1940 5-Month |
18.72" (475.49mm) | 15.90" (403.86mm) |
2.82" (71.63mm) | 106th Driest | Driest since: 1939 | 1924 |
| 20th Wettest | Wettest since: 1916 | 1904 | ||||
|
Dec 1939–May 1940 6-Month |
24.65" (626.11mm) | 20.54" (521.72mm) |
4.11" (104.39mm) | 107th Driest | Driest since: 1939 | 1977 |
| 18th Wettest | Wettest since: 1916 | 1997 | ||||
|
Nov 1939–May 1940 7-Month |
25.77" (654.56mm) | 24.89" (632.21mm) |
0.88" (22.35mm) | 76th Driest | Driest since: 1939 | 1977 |
| 49th Wettest | Wettest since: 1938 | 1974 | ||||
|
Oct 1939–May 1940 8-Month |
28.05" (712.47mm) | 27.45" (697.23mm) |
0.60" (15.24mm) | 72nd Driest | Driest since: 1939 | 1977 |
| 53rd Wettest | Wettest since: 1938 | 1974 | ||||
|
Sep 1939–May 1940 9-Month |
28.96" (735.58mm) | 28.87" (733.30mm) |
0.09" (2.28mm) | 63rd Driest | Driest since: 1939 | 1977 |
| 62nd Wettest | Wettest since: 1938 | 1974 | ||||
|
Aug 1939–May 1940 10-Month |
29.33" (744.98mm) | 29.68" (753.87mm) |
-0.35" (-8.89mm) | 62nd Driest | Driest since: 1939 | 1977 |
| 63rd Wettest | Wettest since: 1938 | 1974 | ||||
|
Jul 1939–May 1940 11-Month |
30.07" (763.78mm) | 30.40" (772.16mm) |
-0.33" (-8.38mm) | 63rd Driest | Driest since: 1939 | 1977 |
| 62nd Wettest | Wettest since: 1938 | 1974 | ||||
|
Jun 1939–May 1940 12-Month |
31.46" (799.08mm) | 32.13" (816.10mm) |
-0.67" (-17.02mm) | 59th Driest | Driest since: 1939 | 1977 |
| 66th Wettest | Wettest since: 1938 | 1996 | ||||
|
Dec 1938–May 1940 18-Month |
46.73" (1,186.94mm) | 52.65" (1,337.31mm) |
-5.92" (-150.37mm) | 16th Driest | Driest since: 1936 | 1930 |
| 108th Wettest | Wettest since: 1939 | 1997 | ||||
|
Jun 1938–May 1940 24-Month |
56.69" (1,439.93mm) | 64.28" (1,632.71mm) |
-7.59" (-192.78mm) | 12th Driest | Driest since: 1937 | 1930 |
| 112th Wettest | Wettest since: 1939 | 1997 | ||||
|
Jun 1937–May 1940 36-Month |
94.79" (2,407.67mm) | 96.36" (2,447.54mm) |
-1.57" (-39.87mm) | 52nd Driest | Driest since: 1939 | 1931 |
| 71st Wettest | Wettest since: 1934 | 1998 | ||||
|
Jun 1936–May 1940 48-Month |
121.30" (3,081.02mm) | 128.40" (3,261.36mm) |
-7.10" (-180.34mm) | 29th Driest | Driest since: 1939 | 1931 |
| 93rd Wettest | Wettest since: 1938 | 1999 | ||||
|
Jun 1935–May 1940 60-Month |
148.70" (3,776.98mm) | 160.37" (4,073.40mm) |
-11.67" (-296.42mm) | 18th Driest | Driest since: 1939 | 1933 |
| 103rd Wettest | Wettest since: 1938 | 1999 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published December 2019, retrieved on December 14, 2019 from https://www.ncdc.noaa.gov/cag/