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 January 1895. For more information, please see Climatological Rankings.
Contiguous U.S.
Precipitation Rankings, May 2018
View Period (Months):All1234567891011121824364860
Download:
| Period | Value | 1901-2000 Mean |
Amomaly | Rank (1895-2018) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
May 2018 1-Month |
3.02" (76.71mm) | 2.91" (73.91mm) |
0.11" (2.80mm) | 76ᵗʰ Driest | Driest since: 2014 | 1934 |
| 49ᵗʰ Wettest | Wettest since: 2017 | 2015 | ||||
|
Apr–May 2018 2-Month |
5.49" (139.45mm) | 5.43" (137.92mm) |
0.06" (1.53mm) | 69ᵗʰ Driest | Driest since: 2012 | 1934 |
| 56ᵗʰ Wettest | Wettest since: 2017 | 1957 | ||||
|
Mar–May 2018 3-Month |
7.97" (202.44mm) | 7.94" (201.68mm) |
0.03" (0.76mm) | 67ᵗʰ Driest | Driest since: 2013 | 1925 |
| 58ᵗʰ Wettest | Wettest since: 2017 | 1957, 1991 | ||||
| Ties: 1999, 2013 | ||||||
|
Feb–May 2018 4-Month |
10.86" (275.84mm) | 10.07" (255.78mm) |
0.79" (20.06mm) | 93ʳᵈ Driest | Driest since: 2014 | 1925 |
| 32ⁿᵈ Wettest | Wettest since: 2017 | 1983 | ||||
|
Jan–May 2018 5-Month |
12.72" (323.09mm) | 12.39" (314.71mm) |
0.33" (8.38mm) | 79ᵗʰ Driest | Driest since: 2014 | 1934 |
| 46ᵗʰ Wettest | Wettest since: 2017 | 1983 | ||||
|
Dec 2017–May 2018 6-Month |
14.32" (363.73mm) | 14.73" (374.14mm) |
-0.41" (-10.41mm) | 48ᵗʰ Driest | Driest since: 2014 | 1931 |
| 76ᵗʰ Wettest | Wettest since: 2017 | 1983 | ||||
| Ties: 1940 | ||||||
|
Nov 2017–May 2018 7-Month |
15.94" (404.88mm) | 16.96" (430.78mm) |
-1.02" (-25.90mm) | 35ᵗʰ Driest | Driest since: 2014 | 1934 |
| 89ᵗʰ Wettest | Wettest since: 2017 | 1983 | ||||
| Ties: 1913 | ||||||
|
Oct 2017–May 2018 8-Month |
18.54" (470.92mm) | 19.13" (485.90mm) |
-0.59" (-14.98mm) | 41ˢᵗ Driest | Driest since: 2014 | 1934 |
| 83ʳᵈ Wettest | Wettest since: 2017 | 1983 | ||||
|
Sep 2017–May 2018 9-Month |
20.81" (528.57mm) | 21.62" (549.15mm) |
-0.81" (-20.58mm) | 39ᵗʰ Driest | Driest since: 2006 | 1934 |
| 85ᵗʰ Wettest | Wettest since: 2017 | 1983 | ||||
|
Aug 2017–May 2018 10-Month |
24.22" (615.19mm) | 24.25" (615.95mm) |
-0.03" (-0.76mm) | 60ᵗʰ Driest | Driest since: 2014 | 1918 |
| 64ᵗʰ Wettest | Wettest since: 2017 | 1983 | ||||
|
Jul 2017–May 2018 11-Month |
27.02" (686.31mm) | 27.03" (686.56mm) |
-0.01" (-0.25mm) | 61ˢᵗ Driest | Driest since: 2013 | 1931 |
| 63ʳᵈ Wettest | Wettest since: 2017 | 1983 | ||||
|
Jun 2017–May 2018 12-Month |
30.08" (764.03mm) | 29.95" (760.73mm) |
0.13" (3.30mm) | 60ᵗʰ Driest | Driest since: 2013 | 1934 |
| 64ᵗʰ Wettest | Wettest since: 2017 | 1983 | ||||
| Ties: 1968, 2007 | ||||||
|
Dec 2016–May 2018 18-Month |
47.69" (1,211.33mm) | 44.70" (1,135.38mm) |
2.99" (75.95mm) | 100ᵗʰ Driest | Driest since: 2015 | 1931 |
| 23ʳᵈ Wettest | Wettest since: 2017 | 1983 | ||||
| Ties: 1942 | ||||||
|
Jun 2016–May 2018 24-Month |
63.43" (1,611.12mm) | 59.92" (1,521.97mm) |
3.51" (89.15mm) | 102ⁿᵈ Driest | Driest since: 2015 | 1931 |
| 21ˢᵗ Wettest | Wettest since: 2017 | 1974 | ||||
| Ties: 2010 | ||||||
|
Jun 2015–May 2018 36-Month |
98.01" (2,489.45mm) | 89.88" (2,282.95mm) |
8.13" (206.50mm) | 114ᵗʰ Driest | Driest since: 2016 | 1955 |
| 8ᵗʰ Wettest | Wettest since: 2017 | 1975 | ||||
|
Jun 2014–May 2018 48-Month |
130.15" (3,305.81mm) | 119.78" (3,042.41mm) |
10.37" (263.40mm) | 115ᵗʰ Driest | Driest since: 2016 | 1956 |
| 6ᵗʰ Wettest | Wettest since: 2017 | 1998 | ||||
|
Jun 2013–May 2018 60-Month |
160.53" (4,077.46mm) | 149.64" (3,800.86mm) |
10.89" (276.60mm) | 115ᵗʰ Driest | Driest since: 2017 | 1957 |
| 5ᵗʰ Wettest | Wettest since: 1999 | 1999 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published September 2018, retrieved on September 23, 2018 from https://www.ncdc.noaa.gov/cag/