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 July 2022. For more information, please see Climatological Rankings.
Contiguous U.S.
Precipitation Rankings, September 1977
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2021) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
September 1977 1-Month |
3.22" (81.79mm) | 2.49" (63.25mm) |
0.73" (18.54mm) | 120th Driest | Driest since: 1976 | 1956 |
| 8th Wettest | Wettest since: 1973 | 1986 | ||||
|
Aug–Sep 1977 2-Month |
6.77" (171.96mm) | 5.11" (129.79mm) |
1.66" (42.17mm) | 127th Driest | Driest since: 1976 | 1956 |
| 1st Wettest | Wettest to Date | 1977 | ||||
|
Jul–Sep 1977 3-Month |
9.33" (236.98mm) | 7.88" (200.15mm) |
1.45" (36.83mm) | 124th Driest | Driest since: 1976 | 1930 |
| 4th Wettest | Wettest since: 1915 | 1915 | ||||
|
Jun–Sep 1977 4-Month |
11.82" (300.23mm) | 10.81" (274.57mm) |
1.01" (25.66mm) | 106th Driest | Driest since: 1976 | 1930 |
| 22nd Wettest | Wettest since: 1965 | 1915 | ||||
|
May–Sep 1977 5-Month |
14.49" (368.05mm) | 13.72" (348.49mm) |
0.77" (19.56mm) | 88th Driest | Driest since: 1976 | 1956 |
| 40th Wettest | Wettest since: 1975 | 1915 | ||||
|
Apr–Sep 1977 6-Month |
16.76" (425.70mm) | 16.24" (412.50mm) |
0.52" (13.20mm) | 78th Driest | Driest since: 1976 | 1956 |
| 50th Wettest | Wettest since: 1975 | 1915 | ||||
|
Mar–Sep 1977 7-Month |
19.86" (504.44mm) | 18.75" (476.25mm) |
1.11" (28.19mm) | 92nd Driest | Driest since: 1976 | 1956 |
| 36th Wettest | Wettest since: 1975 | 1973 | ||||
|
Feb–Sep 1977 8-Month |
21.09" (535.69mm) | 20.88" (530.35mm) |
0.21" (5.34mm) | 67th Driest | Driest since: 1976 | 1930 |
| 61st Wettest | Wettest since: 1975 | 2019 | ||||
|
Jan–Sep 1977 9-Month |
22.67" (575.82mm) | 23.20" (589.28mm) |
-0.53" (-13.46mm) | 43rd Driest | Driest since: 1976 | 1934 |
| 85th Wettest | Wettest since: 1975 | 2019 | ||||
| Ties: 1921, 1994 | ||||||
|
Dec 1976–Sep 1977 10-Month |
24.03" (610.36mm) | 25.54" (648.72mm) |
-1.51" (-38.36mm) | 26th Driest | Driest since: 1976 | 1931 |
| 101st Wettest | Wettest since: 1975 | 2019 | ||||
|
Nov 1976–Sep 1977 11-Month |
25.14" (638.56mm) | 27.77" (705.36mm) |
-2.63" (-66.80mm) | 15th Driest | Driest since: 1963 | 1934 |
| 112th Wettest | Wettest since: 1976 | 2019 | ||||
|
Oct 1976–Sep 1977 12-Month |
27.58" (700.53mm) | 29.94" (760.48mm) |
-2.36" (-59.95mm) | 19th Driest | Driest since: 1966 | 1934 |
| 108th Wettest | Wettest since: 1976 | 2019 | ||||
|
Apr 1976–Sep 1977 18-Month |
42.76" (1,086.10mm) | 46.20" (1,173.48mm) |
-3.44" (-87.38mm) | 16th Driest | Driest since: 1963 | 1931 |
| 111th Wettest | Wettest since: 1976 | 2019 | ||||
|
Oct 1975–Sep 1977 24-Month |
55.67" (1,414.02mm) | 59.92" (1,521.97mm) |
-4.25" (-107.95mm) | 15th Driest | Driest since: 1967 | 1918 |
| 111th Wettest | Wettest since: 1976 | 2020 | ||||
|
Oct 1974–Sep 1977 36-Month |
88.62" (2,250.95mm) | 89.87" (2,282.70mm) |
-1.25" (-31.75mm) | 45th Driest | Driest since: 1968 | 1956 |
| 80th Wettest | Wettest since: 1976 | 2019 | ||||
|
Oct 1973–Sep 1977 48-Month |
121.26" (3,080.00mm) | 119.78" (3,042.41mm) |
1.48" (37.59mm) | 71st Driest | Driest since: 1972 | 1956 |
| 53rd Wettest | Wettest since: 1976 | 2019 | ||||
| Ties: 1946 | ||||||
|
Oct 1972–Sep 1977 60-Month |
156.41" (3,972.81mm) | 149.66" (3,801.36mm) |
6.75" (171.45mm) | 104th Driest | Driest since: 1973 | 1956 |
| 19th Wettest | Wettest since: 1976 | 2020 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published August 2022, retrieved on August 9, 2022 from https://www.ncei.noaa.gov/cag/