Climate at a Glance
Statewide 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.
Pennsylvania
Precipitation Rankings, April 1978
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2019) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
April 1978 1-Month |
2.26" (57.40mm) | 3.64" (92.46mm) |
-1.38" (-35.06mm) | 18th Driest | Driest since: 1971 | 1946 |
| 108th Wettest | Wettest since: 1977 | 2011 | ||||
|
Mar–Apr 1978 2-Month |
4.89" (124.21mm) | 7.13" (181.10mm) |
-2.24" (-56.89mm) | 11th Driest | Driest since: 1971 | 1915 |
| 115th Wettest | Wettest since: 1977 | 2011 | ||||
|
Feb–Apr 1978 3-Month |
5.91" (150.11mm) | 9.73" (247.14mm) |
-3.82" (-97.03mm) | 2nd Driest | Driest since: 1941 | 1941 |
| 124th Wettest | Wettest since: 1977 | 2011 | ||||
|
Jan–Apr 1978 4-Month |
12.42" (315.47mm) | 12.78" (324.61mm) |
-0.36" (-9.14mm) | 63rd Driest | Driest since: 1976 | 1941 |
| 63rd Wettest | Wettest since: 1977 | 2011 | ||||
|
Dec 1977–Apr 1978 5-Month |
17.01" (432.05mm) | 15.88" (403.35mm) |
1.13" (28.70mm) | 84th Driest | Driest since: 1977 | 1941 |
| 41st Wettest | Wettest since: 1975 | 2011 | ||||
| Ties: 1912 | ||||||
|
Nov 1977–Apr 1978 6-Month |
21.46" (545.08mm) | 19.09" (484.89mm) |
2.37" (60.19mm) | 98th Driest | Driest since: 1977 | 1931 |
| 27th Wettest | Wettest since: 1973 | 1952 | ||||
|
Oct 1977–Apr 1978 7-Month |
25.58" (649.73mm) | 22.26" (565.40mm) |
3.32" (84.33mm) | 103rd Driest | Driest since: 1977 | 1925 |
| 22nd Wettest | Wettest since: 1973 | 2011 | ||||
|
Sep 1977–Apr 1978 8-Month |
30.86" (783.84mm) | 25.83" (656.08mm) |
5.03" (127.76mm) | 109th Driest | Driest since: 1977 | 1931 |
| 16th Wettest | Wettest since: 1952 | 2019 | ||||
|
Aug 1977–Apr 1978 9-Month |
35.18" (893.57mm) | 29.69" (754.13mm) |
5.49" (139.44mm) | 109th Driest | Driest since: 1977 | 1931 |
| 16th Wettest | Wettest since: 1956 | 2019 | ||||
|
Jul 1977–Apr 1978 10-Month |
40.75" (1,035.05mm) | 33.89" (860.81mm) |
6.86" (174.24mm) | 117th Driest | Driest since: 1977 | 1931 |
| 8th Wettest | Wettest since: 1951 | 2019 | ||||
|
Jun 1977–Apr 1978 11-Month |
44.84" (1,138.94mm) | 38.05" (966.47mm) |
6.79" (172.47mm) | 115th Driest | Driest since: 1977 | 1931 |
| 10th Wettest | Wettest since: 1973 | 2019 | ||||
|
May 1977–Apr 1978 12-Month |
46.53" (1,181.86mm) | 41.95" (1,065.53mm) |
4.58" (116.33mm) | 104th Driest | Driest since: 1977 | 1931 |
| 21st Wettest | Wettest since: 1976 | 2019 | ||||
|
Nov 1976–Apr 1978 18-Month |
62.07" (1,576.58mm) | 61.03" (1,550.16mm) |
1.04" (26.42mm) | 70th Driest | Driest since: 1977 | 1931 |
| 54th Wettest | Wettest since: 1976 | 2019 | ||||
|
May 1976–Apr 1978 24-Month |
89.13" (2,263.90mm) | 83.91" (2,131.31mm) |
5.22" (132.59mm) | 94th Driest | Driest since: 1972 | 1966 |
| 30th Wettest | Wettest since: 1977 | 2019 | ||||
|
May 1975–Apr 1978 36-Month |
137.26" (3,486.40mm) | 125.93" (3,198.62mm) |
11.33" (287.78mm) | 107th Driest | Driest since: 1977 | 1967 |
| 16th Wettest | Wettest since: 1976 | 2005 | ||||
|
May 1974–Apr 1978 48-Month |
181.43" (4,608.32mm) | 167.93" (4,265.42mm) |
13.50" (342.90mm) | 108th Driest | Driest since: 1977 | 1966 |
| 14th Wettest | Wettest since: 1976 | 2007 | ||||
|
May 1973–Apr 1978 60-Month |
226.71" (5,758.43mm) | 209.83" (5,329.68mm) |
16.88" (428.75mm) | 102nd Driest | Driest since: 1974 | 1967 |
| 19th Wettest | Wettest since: 1977 | 2008 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 22, 2019 from https://www.ncdc.noaa.gov/cag/